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dd978ec65c
| Author | SHA1 | Date | |
|---|---|---|---|
|
dd978ec65c | ||
|
|
3930716ac3 |
3
.gitignore
vendored
3
.gitignore
vendored
@@ -1,4 +1 @@
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*.pdf
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target/
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**/target/
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**/**/target/
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@@ -4,27 +4,24 @@
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_stm32::dma::Request;
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use embassy_stm32::gpio::{Input, Output, Level, Pull, Speed};
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use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, pipe::Pipe};
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use embassy_time::{Duration, Timer};
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use embassy_stm32::dma::{TransferOptions, WritableRingBuffer};
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use dma_gpio::software_uart::{
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dma_timer::{init_tim6_for_uart, init_tim7_for_uart},
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gpio_dma_uart_tx::encode_uart_frames,
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gpio_dma_uart_tx::{write_uart_frames_to_ring, TIM6_UP_REQ},
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gpio_dma_uart_rx::rx_dma_task,
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debug::dump_tim6_regs,
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};
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use dma_gpio::config::{BAUD, TX_PIN_BIT, RX_OVERSAMPLE, TX_OVERSAMPLE};
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use dma_gpio::config::{TX_RING_BYTES, RX_RING_BYTES, PIPE_RX_SIZE};
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use static_cell::StaticCell;
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use embassy_futures::yield_now;
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use {defmt_rtt as _, panic_probe as _};
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pub const TIM6_UP_REQ: Request = 4;
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static PIPE_RX: Pipe<CriticalSectionRawMutex, PIPE_RX_SIZE> = Pipe::new();
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static TX_RING: StaticCell<[u32; TX_RING_BYTES]> = StaticCell::new();
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static RX_RING: StaticCell<[u8; RX_RING_BYTES]> = StaticCell::new();
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static TX_RING: StaticCell<[u32; TX_RING_BYTES]> = StaticCell::new();
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#[embassy_executor::main]
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async fn main(spawner: Spawner) {
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@@ -67,26 +64,16 @@ async fn main(spawner: Spawner) {
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tx_ring.start();
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info!("TX DMA ring started");
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let mut frame_buf = [0u32; 4096];
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loop {
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info!("tick start");
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// Timer::after(Duration::from_millis(100)).await;
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// info!("tick end");
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let used = encode_uart_frames(
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Timer::after(Duration::from_millis(100)).await;
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info!("tick end");
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write_uart_frames_to_ring(
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&mut tx_ring,
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TX_PIN_BIT,
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b"Hello marshmallow\r\n",
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&mut frame_buf,
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)
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.await;
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if used == 0 {
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info!("encode_uart_frames() produced 0 words, skipping write");
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yield_now().await;
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continue;
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}
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let _ = tx_ring.write_exact(&frame_buf[..used]).await;
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).await;
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info!("text");
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yield_now().await;
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Timer::after(Duration::from_secs(1)).await;
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}
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}
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@@ -1,28 +1,23 @@
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// src/software_uart/gpio_dma_uart_tx.rs
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use embassy_futures::yield_now;
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use embassy_stm32::dma::Request;
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use embassy_stm32::dma::WritableRingBuffer;
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use crate::software_uart::uart_emulation::encode_uart_byte_cfg;
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use crate::config::UART_CFG;
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pub async fn encode_uart_frames<'a>(
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// kapitola 17.4.11 - 2 casovace pre 2 DMA
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pub const TIM6_UP_REQ: Request = 4; // Table 137: tim6_upd_dma, strana 687 STM32U5xx datasheet
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/// Push UART frames into the DMA-backed TX ring
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pub async fn write_uart_frames_to_ring(
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ring: &mut WritableRingBuffer<'static, u32>,
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pin_bit: u8,
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bytes: &[u8],
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out_buf: &'a mut [u32],
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) -> usize {
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let mut offset = 0;
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) {
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for &b in bytes {
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let mut frame = [0u32; 12];
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let used = encode_uart_byte_cfg(pin_bit, b, &UART_CFG, &mut frame);
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if offset + used <= out_buf.len() {
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out_buf[offset..offset + used].copy_from_slice(&frame[..used]);
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offset += used;
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} else {
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break;
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}
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// cooperative async yield
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yield_now().await;
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// Will wait until all words are written
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ring.write_exact(&frame[..used]).await.unwrap();
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}
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offset
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}
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16
dma_gpio2/Cargo.lock
generated
16
dma_gpio2/Cargo.lock
generated
@@ -295,6 +295,7 @@ dependencies = [
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[[package]]
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name = "embassy-embedded-hal"
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version = "0.5.0"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"defmt 1.0.1",
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"embassy-futures",
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@@ -312,6 +313,7 @@ dependencies = [
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[[package]]
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name = "embassy-executor"
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version = "0.9.1"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"cordyceps",
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"cortex-m",
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@@ -324,6 +326,7 @@ dependencies = [
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[[package]]
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name = "embassy-executor-macros"
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version = "0.7.0"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"darling",
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"proc-macro2",
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@@ -334,14 +337,17 @@ dependencies = [
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[[package]]
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name = "embassy-executor-timer-queue"
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version = "0.1.0"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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[[package]]
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name = "embassy-futures"
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version = "0.1.2"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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[[package]]
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name = "embassy-hal-internal"
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version = "0.3.0"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"cortex-m",
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"critical-section",
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@@ -352,6 +358,7 @@ dependencies = [
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[[package]]
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name = "embassy-net-driver"
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version = "0.2.0"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"defmt 1.0.1",
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]
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@@ -359,6 +366,7 @@ dependencies = [
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[[package]]
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name = "embassy-net-driver-channel"
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version = "0.3.2"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"embassy-futures",
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"embassy-net-driver",
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@@ -368,6 +376,7 @@ dependencies = [
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[[package]]
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name = "embassy-stm32"
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version = "0.4.0"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"aligned",
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"bit_field",
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@@ -416,6 +425,7 @@ dependencies = [
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[[package]]
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name = "embassy-sync"
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version = "0.7.2"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"cfg-if",
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"critical-section",
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@@ -429,6 +439,7 @@ dependencies = [
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[[package]]
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name = "embassy-time"
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version = "0.5.0"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"cfg-if",
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"critical-section",
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@@ -444,6 +455,7 @@ dependencies = [
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[[package]]
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name = "embassy-time-driver"
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version = "0.2.1"
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
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dependencies = [
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"document-features",
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]
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@@ -451,6 +463,7 @@ dependencies = [
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[[package]]
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name = "embassy-time-queue-utils"
|
||||
version = "0.3.0"
|
||||
source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
|
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dependencies = [
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"embassy-executor-timer-queue",
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"heapless 0.8.0",
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@@ -459,6 +472,7 @@ dependencies = [
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[[package]]
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name = "embassy-usb"
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version = "0.5.1"
|
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source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
|
||||
dependencies = [
|
||||
"embassy-futures",
|
||||
"embassy-net-driver-channel",
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@@ -473,6 +487,7 @@ dependencies = [
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||||
[[package]]
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name = "embassy-usb-driver"
|
||||
version = "0.2.0"
|
||||
source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
|
||||
dependencies = [
|
||||
"defmt 1.0.1",
|
||||
"embedded-io-async",
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||||
@@ -481,6 +496,7 @@ dependencies = [
|
||||
[[package]]
|
||||
name = "embassy-usb-synopsys-otg"
|
||||
version = "0.3.1"
|
||||
source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
|
||||
dependencies = [
|
||||
"critical-section",
|
||||
"defmt 1.0.1",
|
||||
|
||||
@@ -10,13 +10,13 @@ cortex-m = { version = "0.7.7", features = ["inline-asm", "critical-section-sing
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cortex-m-rt = "0.7.5"
|
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panic-halt = "1.0.0"
|
||||
|
||||
embassy-executor = { path = "/home/filip/programs/embassy/embassy-executor", features = ["arch-cortex-m", "executor-thread"] }
|
||||
embassy-futures = { path = "/home/filip/programs/embassy/embassy-futures" }
|
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embassy-sync = { path = "/home/filip/programs/embassy/embassy-sync" }
|
||||
embassy-time = { path = "/home/filip/programs/embassy/embassy-time", features = ["tick-hz-32_768"] }
|
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embassy-hal-internal = { path = "/home/filip/programs/embassy/embassy-hal-internal" }
|
||||
embassy-usb = { path = "/home/filip/programs/embassy/embassy-usb" }
|
||||
embassy-stm32 = { path = "/home/filip/programs/embassy/embassy-stm32", features = ["unstable-pac", "stm32u575zi", "time-driver-tim2", "memory-x", "defmt"] }
|
||||
embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", branch = "main", features = ["arch-cortex-m", "executor-thread"] }
|
||||
embassy-futures = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-sync = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-time = { git = "https://github.com/embassy-rs/embassy.git", branch = "main", features = ["tick-hz-32_768"] }
|
||||
embassy-hal-internal = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-usb = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-stm32 = { git = "https://github.com/embassy-rs/embassy.git", branch = "main", features = ["unstable-pac", "stm32u575zi", "time-driver-tim2", "memory-x", "defmt"] }
|
||||
|
||||
embedded-hal = "1.0.0"
|
||||
embedded-graphics = "0.8.1"
|
||||
|
||||
@@ -1,165 +1,71 @@
|
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// src/bin/main.rs
|
||||
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use defmt::*;
|
||||
use embassy_executor::Spawner;
|
||||
use embassy_futures::yield_now;
|
||||
use embassy_stm32::dma::Request;
|
||||
use embassy_stm32::gpio::{Input, Output, Level, Pull, Speed};
|
||||
use embassy_time::{Duration, Timer};
|
||||
use embassy_stm32::dma::{TransferOptions, WritableRingBuffer};
|
||||
use embassy_stm32::dma::{TransferOptions, Transfer, Priority, Request};
|
||||
use dma_gpio::software_uart::{
|
||||
dma_timer::init_tim6_for_uart,
|
||||
gpio_dma_uart_tx::encode_uart_frames,
|
||||
debug::dump_tim6_regs,
|
||||
};
|
||||
use dma_gpio::config::{BAUD, TX_PIN_BIT, TX_OVERSAMPLE, TX_RING_BYTES};
|
||||
use dma_gpio::config::{BAUD, TX_PIN_BIT, TX_OVERSAMPLE};
|
||||
use static_cell::StaticCell;
|
||||
use {defmt_rtt as _, panic_probe as _};
|
||||
|
||||
unsafe fn start_dma<'a>(
|
||||
ch: embassy_hal_internal::Peri<'a, impl embassy_stm32::dma::Channel>,
|
||||
request: Request,
|
||||
odr_ptr: *mut u32,
|
||||
buf: &'a [u32],
|
||||
opts: TransferOptions,
|
||||
) -> Transfer<'a> {
|
||||
// new_write itself is unsafe
|
||||
unsafe { Transfer::new_write(ch, request, buf, odr_ptr, opts) }
|
||||
}
|
||||
|
||||
pub const TIM6_UP_REQ: Request = 4;
|
||||
|
||||
static TX_RING: StaticCell<[u32; TX_RING_BYTES]> = StaticCell::new();
|
||||
static BUF_A: StaticCell<[u32; 8]> = StaticCell::new();
|
||||
static BUF_B: StaticCell<[u32; 8]> = StaticCell::new();
|
||||
|
||||
#[embassy_executor::main]
|
||||
async fn main(_spawner: Spawner) {
|
||||
let p = embassy_stm32::init(Default::default());
|
||||
info!("Hehe");
|
||||
|
||||
let _rx = Input::new(p.PA3, embassy_stm32::gpio::Pull::Up);
|
||||
let _tx = Output::new(p.PA2, Level::High, Speed::VeryHigh);
|
||||
let odr_ptr = embassy_stm32::pac::GPIOA.odr().as_ptr() as *mut u32;
|
||||
|
||||
init_tim6_for_uart(p.TIM6, BAUD, TX_OVERSAMPLE);
|
||||
dump_tim6_regs();
|
||||
|
||||
let idle: u32 = 1u32 << TX_PIN_BIT;
|
||||
let buf_a = BUF_A.init([0u32; 8]);
|
||||
let buf_b = BUF_B.init([0u32; 8]);
|
||||
|
||||
// Ring initialized to idle (line high).
|
||||
let tx_ring_mem: &mut [u32; TX_RING_BYTES] = TX_RING.init([0; TX_RING_BYTES]);
|
||||
let mut opts = TransferOptions::default();
|
||||
opts.priority = Priority::VeryHigh;
|
||||
opts.complete_transfer_ir = true;
|
||||
|
||||
let odr_ptr = embassy_stm32::pac::GPIOA.odr().as_ptr() as *mut u32;
|
||||
|
||||
let mut tx_opts = TransferOptions::default();
|
||||
tx_opts.half_transfer_ir = true;
|
||||
tx_opts.complete_transfer_ir = true;
|
||||
|
||||
let mut tx_ring = unsafe {
|
||||
WritableRingBuffer::new(
|
||||
p.GPDMA1_CH0,
|
||||
TIM6_UP_REQ,
|
||||
odr_ptr,
|
||||
tx_ring_mem,
|
||||
tx_opts,
|
||||
)
|
||||
};
|
||||
|
||||
{
|
||||
// Full idle buffer matching ring capacity.
|
||||
let idle_buf = [idle; TX_RING_BYTES];
|
||||
|
||||
let written = tx_ring
|
||||
.write_exact(&idle_buf)
|
||||
.await
|
||||
.expect("Failed to prefill TX ring with idle");
|
||||
|
||||
info!(
|
||||
"TX ring prefilled with idle via write_exact: written={} cap={}",
|
||||
written,
|
||||
tx_ring.capacity()
|
||||
);
|
||||
}
|
||||
|
||||
tx_ring.start();
|
||||
info!(
|
||||
"TX DMA ring started: cap_words={}",
|
||||
tx_ring.capacity()
|
||||
);
|
||||
unsafe {
|
||||
use embassy_stm32::pac::gpdma::Gpdma;
|
||||
let dma = Gpdma::from_ptr(0x4002_0000 as _); // GPDMA1 base for STM32U5
|
||||
let ch = dma.ch(0); // Channel 0
|
||||
|
||||
let cr = ch.cr().read();
|
||||
let tr1 = ch.tr1().read();
|
||||
let tr2 = ch.tr2().read();
|
||||
let br1 = ch.br1().read();
|
||||
let sar = ch.sar().read();
|
||||
let dar = ch.dar().read();
|
||||
let llr = ch.llr().read();
|
||||
let lbar = ch.lbar().read();
|
||||
|
||||
info!(
|
||||
"GPDMA1_CH0: EN={} HTIE={} TCIE={} SDW={:?} DDW={:?} SINC={} DINC={} BNDT={} SAR=0x{:08x} DAR=0x{:08x}",
|
||||
cr.en(),
|
||||
cr.htie(),
|
||||
cr.tcie(),
|
||||
tr1.sdw(),
|
||||
tr1.ddw(),
|
||||
tr1.sinc(),
|
||||
tr1.dinc(),
|
||||
br1.bndt(),
|
||||
sar, // already u32
|
||||
dar, // already u32
|
||||
);
|
||||
info!(
|
||||
"GPDMA1_CH0: LBAR=0x{:08x} LLR=0x{:08x}",
|
||||
lbar.lba(),
|
||||
llr.0
|
||||
);
|
||||
}
|
||||
|
||||
let mut frame_buf = [0u32; 4096];
|
||||
let mut ch0 = p.GPDMA1_CH0;
|
||||
let mut using_a = true;
|
||||
|
||||
loop {
|
||||
info!("tick start");
|
||||
Timer::after(Duration::from_millis(1021)).await;
|
||||
//info!("tick end");
|
||||
let (dma_buf, cpu_buf) = if using_a {
|
||||
(&*buf_a, &mut *buf_b)
|
||||
} else {
|
||||
(&*buf_b, &mut *buf_a)
|
||||
};
|
||||
|
||||
let used = encode_uart_frames(
|
||||
TX_PIN_BIT,
|
||||
b"H\r\n",
|
||||
&mut frame_buf,
|
||||
)
|
||||
.await;
|
||||
let used = encode_uart_frames(TX_PIN_BIT, b"Hello marshmallow\r\n", cpu_buf).await;
|
||||
|
||||
if used == 0 {
|
||||
info!("encode_uart_frames() produced 0 words, skipping write");
|
||||
yield_now().await;
|
||||
continue;
|
||||
}
|
||||
let transfer = unsafe {
|
||||
start_dma(ch0.reborrow(), TIM6_UP_REQ, odr_ptr, &dma_buf[..used], opts)
|
||||
};
|
||||
transfer.await;
|
||||
using_a = !using_a;
|
||||
|
||||
// Debug: confirm encoded content.
|
||||
let preview = core::cmp::min(used, 32);
|
||||
info!(
|
||||
"TX frame used={} words, head={=[?]}",
|
||||
used,
|
||||
&frame_buf[..preview]
|
||||
);
|
||||
|
||||
// Now it is safe to call write_exact.
|
||||
match tx_ring.write_exact(&frame_buf[..used]).await {
|
||||
Ok(written) => {
|
||||
let len = tx_ring.len().unwrap_or(0);
|
||||
info!(
|
||||
"write_exact ok: written={} ring_used={} ring_cap={}",
|
||||
written,
|
||||
len,
|
||||
tx_ring.capacity()
|
||||
);
|
||||
}
|
||||
Err(e) => {
|
||||
let len = tx_ring.len().unwrap_or(0);
|
||||
warn!(
|
||||
"write_exact error: {:?}, ring_used={} ring_cap={}",
|
||||
e,
|
||||
len,
|
||||
tx_ring.capacity()
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
info!("tick end");
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,14 +0,0 @@
|
||||
[build]
|
||||
target = "thumbv8m.main-none-eabihf"
|
||||
|
||||
[target.thumbv8m.main-none-eabihf]
|
||||
runner = "probe-rs run --chip STM32U575ZITxQ"
|
||||
|
||||
rustflags = [
|
||||
"-C", "linker=rust-lld",
|
||||
"-C", "link-arg=-Tlink.x",
|
||||
"-C", "link-arg=--nmagic",
|
||||
]
|
||||
|
||||
[package.metadata.cargo-flash]
|
||||
chip = "STM32U575ZIT"
|
||||
1
external_led_blinky/.gitignore
vendored
1
external_led_blinky/.gitignore
vendored
@@ -1 +0,0 @@
|
||||
/target
|
||||
949
external_led_blinky/Cargo.lock
generated
949
external_led_blinky/Cargo.lock
generated
@@ -1,949 +0,0 @@
|
||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 4
|
||||
|
||||
[[package]]
|
||||
name = "ahash"
|
||||
version = "0.8.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5a15f179cd60c4584b8a8c596927aadc462e27f2ca70c04e0071964a73ba7a75"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"once_cell",
|
||||
"version_check",
|
||||
"zerocopy",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "aligned"
|
||||
version = "0.4.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "377e4c0ba83e4431b10df45c1d4666f178ea9c552cac93e60c3a88bf32785923"
|
||||
dependencies = [
|
||||
"as-slice",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "as-slice"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "516b6b4f0e40d50dcda9365d53964ec74560ad4284da2e7fc97122cd83174516"
|
||||
dependencies = [
|
||||
"stable_deref_trait",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "autocfg"
|
||||
version = "1.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
|
||||
|
||||
[[package]]
|
||||
name = "az"
|
||||
version = "1.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7b7e4c2464d97fe331d41de9d5db0def0a96f4d823b8b32a2efd503578988973"
|
||||
|
||||
[[package]]
|
||||
name = "bare-metal"
|
||||
version = "0.2.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
|
||||
dependencies = [
|
||||
"rustc_version",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "bit_field"
|
||||
version = "0.10.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1e4b40c7323adcfc0a41c4b88143ed58346ff65a288fc144329c5c45e05d70c6"
|
||||
|
||||
[[package]]
|
||||
name = "bitfield"
|
||||
version = "0.13.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "46afbd2983a5d5a7bd740ccb198caf5b82f45c40c09c0eed36052d91cb92e719"
|
||||
|
||||
[[package]]
|
||||
name = "bitfield"
|
||||
version = "0.14.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2d7e60934ceec538daadb9d8432424ed043a904d8e0243f3c6446bce549a46ac"
|
||||
|
||||
[[package]]
|
||||
name = "bitflags"
|
||||
version = "2.10.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "812e12b5285cc515a9c72a5c1d3b6d46a19dac5acfef5265968c166106e31dd3"
|
||||
|
||||
[[package]]
|
||||
name = "block-device-driver"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "44c051592f59fe68053524b4c4935249b806f72c1f544cfb7abe4f57c3be258e"
|
||||
dependencies = [
|
||||
"aligned",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "byteorder"
|
||||
version = "1.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m"
|
||||
version = "0.7.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8ec610d8f49840a5b376c69663b6369e71f4b34484b9b2eb29fb918d92516cb9"
|
||||
dependencies = [
|
||||
"bare-metal",
|
||||
"bitfield 0.13.2",
|
||||
"critical-section",
|
||||
"embedded-hal 0.2.7",
|
||||
"volatile-register",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m-rt"
|
||||
version = "0.7.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "801d4dec46b34c299ccf6b036717ae0fce602faa4f4fe816d9013b9a7c9f5ba6"
|
||||
dependencies = [
|
||||
"cortex-m-rt-macros",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m-rt-macros"
|
||||
version = "0.7.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e37549a379a9e0e6e576fd208ee60394ccb8be963889eebba3ffe0980364f472"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "critical-section"
|
||||
version = "1.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "790eea4361631c5e7d22598ecd5723ff611904e3344ce8720784c93e3d83d40b"
|
||||
|
||||
[[package]]
|
||||
name = "darling"
|
||||
version = "0.20.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "fc7f46116c46ff9ab3eb1597a45688b6715c6e628b5c133e288e709a29bcb4ee"
|
||||
dependencies = [
|
||||
"darling_core",
|
||||
"darling_macro",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "darling_core"
|
||||
version = "0.20.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0d00b9596d185e565c2207a0b01f8bd1a135483d02d9b7b0a54b11da8d53412e"
|
||||
dependencies = [
|
||||
"fnv",
|
||||
"ident_case",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"strsim",
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "darling_macro"
|
||||
version = "0.20.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "fc34b93ccb385b40dc71c6fceac4b2ad23662c7eeb248cf10d529b7e055b6ead"
|
||||
dependencies = [
|
||||
"darling_core",
|
||||
"quote",
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "document-features"
|
||||
version = "0.2.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "95249b50c6c185bee49034bcb378a49dc2b5dff0be90ff6616d31d64febab05d"
|
||||
dependencies = [
|
||||
"litrs",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-embedded-hal"
|
||||
version = "0.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "554e3e840696f54b4c9afcf28a0f24da431c927f4151040020416e7393d6d0d8"
|
||||
dependencies = [
|
||||
"embassy-futures",
|
||||
"embassy-hal-internal",
|
||||
"embassy-sync",
|
||||
"embassy-time",
|
||||
"embedded-hal 0.2.7",
|
||||
"embedded-hal 1.0.0",
|
||||
"embedded-hal-async",
|
||||
"embedded-storage",
|
||||
"embedded-storage-async",
|
||||
"nb 1.1.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-executor"
|
||||
version = "0.9.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "06070468370195e0e86f241c8e5004356d696590a678d47d6676795b2e439c6b"
|
||||
dependencies = [
|
||||
"cortex-m",
|
||||
"critical-section",
|
||||
"document-features",
|
||||
"embassy-executor-macros",
|
||||
"embassy-executor-timer-queue",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-executor-macros"
|
||||
version = "0.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dfdddc3a04226828316bf31393b6903ee162238576b1584ee2669af215d55472"
|
||||
dependencies = [
|
||||
"darling",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-executor-timer-queue"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2fc328bf943af66b80b98755db9106bf7e7471b0cf47dc8559cd9a6be504cc9c"
|
||||
|
||||
[[package]]
|
||||
name = "embassy-futures"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dc2d050bdc5c21e0862a89256ed8029ae6c290a93aecefc73084b3002cdebb01"
|
||||
|
||||
[[package]]
|
||||
name = "embassy-hal-internal"
|
||||
version = "0.3.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "95285007a91b619dc9f26ea8f55452aa6c60f7115a4edc05085cd2bd3127cd7a"
|
||||
dependencies = [
|
||||
"cortex-m",
|
||||
"critical-section",
|
||||
"num-traits",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-net-driver"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "524eb3c489760508f71360112bca70f6e53173e6fe48fc5f0efd0f5ab217751d"
|
||||
|
||||
[[package]]
|
||||
name = "embassy-net-driver-channel"
|
||||
version = "0.3.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b7b2739fbcf6cd206ae08779c7d709087b16577d255f2ea4a45bc4bbbf305b3f"
|
||||
dependencies = [
|
||||
"embassy-futures",
|
||||
"embassy-net-driver",
|
||||
"embassy-sync",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-stm32"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0d972eab325cc96afee98f80a91ca6b00249b6356dc0fdbff68b70c200df9fae"
|
||||
dependencies = [
|
||||
"aligned",
|
||||
"bit_field",
|
||||
"bitflags",
|
||||
"block-device-driver",
|
||||
"cfg-if",
|
||||
"cortex-m",
|
||||
"cortex-m-rt",
|
||||
"critical-section",
|
||||
"document-features",
|
||||
"embassy-embedded-hal",
|
||||
"embassy-futures",
|
||||
"embassy-hal-internal",
|
||||
"embassy-net-driver",
|
||||
"embassy-sync",
|
||||
"embassy-time",
|
||||
"embassy-time-driver",
|
||||
"embassy-time-queue-utils",
|
||||
"embassy-usb-driver",
|
||||
"embassy-usb-synopsys-otg",
|
||||
"embedded-can",
|
||||
"embedded-hal 0.2.7",
|
||||
"embedded-hal 1.0.0",
|
||||
"embedded-hal-async",
|
||||
"embedded-hal-nb",
|
||||
"embedded-io",
|
||||
"embedded-io-async",
|
||||
"embedded-storage",
|
||||
"embedded-storage-async",
|
||||
"futures-util",
|
||||
"nb 1.1.0",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"rand_core 0.6.4",
|
||||
"rand_core 0.9.3",
|
||||
"sdio-host",
|
||||
"static_assertions",
|
||||
"stm32-fmc",
|
||||
"stm32-metapac",
|
||||
"vcell",
|
||||
"volatile-register",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-sync"
|
||||
version = "0.7.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "73974a3edbd0bd286759b3d483540f0ebef705919a5f56f4fc7709066f71689b"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"critical-section",
|
||||
"embedded-io-async",
|
||||
"futures-core",
|
||||
"futures-sink",
|
||||
"heapless 0.8.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-time"
|
||||
version = "0.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f4fa65b9284d974dad7a23bb72835c4ec85c0b540d86af7fc4098c88cff51d65"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"critical-section",
|
||||
"document-features",
|
||||
"embassy-time-driver",
|
||||
"embedded-hal 0.2.7",
|
||||
"embedded-hal 1.0.0",
|
||||
"embedded-hal-async",
|
||||
"futures-core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-time-driver"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a0a244c7dc22c8d0289379c8d8830cae06bb93d8f990194d0de5efb3b5ae7ba6"
|
||||
dependencies = [
|
||||
"document-features",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embassy-time-queue-utils"
|
||||
version = "0.3.0"
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|
||||
the Software, and to permit persons to whom the Software
|
||||
is furnished to do so, subject to the following
|
||||
conditions:
|
||||
|
||||
The above copyright notice and this permission notice
|
||||
shall be included in all copies or substantial portions
|
||||
of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
|
||||
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
|
||||
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
||||
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
|
||||
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
|
||||
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
@@ -1,20 +0,0 @@
|
||||
TARGET = thumbv8m.main-none-eabihf
|
||||
CHIP = STM32U575ZI
|
||||
BIN = main
|
||||
MODE ?= release
|
||||
ELF = target/$(TARGET)/$(MODE)/$(BIN)
|
||||
PROBE = probe-rs
|
||||
|
||||
.PHONY: all build flash empty
|
||||
|
||||
all: build flash
|
||||
|
||||
build:
|
||||
cargo build --target $(TARGET) --$(MODE)
|
||||
|
||||
flash: build
|
||||
$(PROBE) run --chip $(CHIP) $(ELF)
|
||||
|
||||
empty:
|
||||
$(PROBE) erase --chip $(CHIP)
|
||||
|
||||
@@ -1,232 +0,0 @@
|
||||
# `app-template`
|
||||
|
||||
> Quickly set up a [`probe-rs`] + [`defmt`] + [`flip-link`] embedded project
|
||||
|
||||
[`probe-rs`]: https://crates.io/crates/probe-rs
|
||||
[`defmt`]: https://github.com/knurling-rs/defmt
|
||||
[`flip-link`]: https://github.com/knurling-rs/flip-link
|
||||
|
||||
## Dependencies
|
||||
|
||||
### 1. `flip-link`:
|
||||
|
||||
```bash
|
||||
cargo install flip-link
|
||||
```
|
||||
|
||||
### 2. `probe-rs`:
|
||||
|
||||
Install probe-rs by following the instructions at <https://probe.rs/docs/getting-started/installation/>.
|
||||
|
||||
### 3. [`cargo-generate`]:
|
||||
|
||||
```bash
|
||||
cargo install cargo-generate
|
||||
```
|
||||
|
||||
[`cargo-generate`]: https://crates.io/crates/cargo-generate
|
||||
|
||||
> *Note:* You can also just clone this repository instead of using `cargo-generate`, but this involves additional manual adjustments.
|
||||
|
||||
## Setup
|
||||
|
||||
### 1. Initialize the project template
|
||||
|
||||
```bash
|
||||
cargo generate \
|
||||
--git https://github.com/knurling-rs/app-template \
|
||||
--branch main \
|
||||
--name my-app
|
||||
```
|
||||
|
||||
If you look into your new `my-app` folder, you'll find that there are a few `TODO`s in the files marking the properties you need to set.
|
||||
|
||||
Let's walk through them together now.
|
||||
|
||||
### 2. Set `probe-rs` chip
|
||||
|
||||
Pick a chip from ` probe-rs chip list` and enter it into `.cargo/config.toml`.
|
||||
|
||||
If, for example, you have a nRF52840 Development Kit as used in one of [our exercises], replace `{{chip}}` with `nRF52840_xxAA`.
|
||||
|
||||
[our workshops]: https://rust-exercises.ferrous-systems.com
|
||||
|
||||
```diff
|
||||
# .cargo/config.toml
|
||||
-runner = ["probe-rs", "run", "--chip", "$CHIP", "--log-format=oneline"]
|
||||
+runner = ["probe-rs", "run", "--chip", "nRF52840_xxAA", "--log-format=oneline"]
|
||||
```
|
||||
|
||||
### 3. Adjust the compilation target
|
||||
|
||||
In `.cargo/config.toml`, pick the right compilation target for your board.
|
||||
|
||||
```diff
|
||||
# .cargo/config.toml
|
||||
[build]
|
||||
-target = "thumbv6m-none-eabi" # Cortex-M0 and Cortex-M0+
|
||||
-# target = "thumbv7m-none-eabi" # Cortex-M3
|
||||
-# target = "thumbv7em-none-eabi" # Cortex-M4 and Cortex-M7 (no FPU)
|
||||
-# target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
|
||||
+target = "thumbv7em-none-eabihf" # Cortex-M4F (with FPU)
|
||||
```
|
||||
|
||||
Add the target with `rustup`.
|
||||
|
||||
```bash
|
||||
rustup target add thumbv7em-none-eabihf
|
||||
```
|
||||
|
||||
### 4. Add a HAL as a dependency
|
||||
|
||||
In `Cargo.toml`, list the Hardware Abstraction Layer (HAL) for your board as a dependency.
|
||||
|
||||
For the nRF52840 you'll want to use the [`nrf52840-hal`].
|
||||
|
||||
[`nrf52840-hal`]: https://crates.io/crates/nrf52840-hal
|
||||
|
||||
```diff
|
||||
# Cargo.toml
|
||||
[dependencies]
|
||||
-# some-hal = "1.2.3"
|
||||
+nrf52840-hal = "0.14.0"
|
||||
```
|
||||
|
||||
⚠️ Note for RP2040 users ⚠️
|
||||
|
||||
You will need to not just specify the `rp-hal` HAL, but a BSP (board support crate) which includes a second stage bootloader. Please find a list of available BSPs [here](https://github.com/rp-rs/rp-hal-boards#packages).
|
||||
|
||||
### 5. Import your HAL
|
||||
|
||||
Now that you have selected a HAL, fix the HAL import in `src/lib.rs`
|
||||
|
||||
```diff
|
||||
// my-app/src/lib.rs
|
||||
-// use some_hal as _; // memory layout
|
||||
+use nrf52840_hal as _; // memory layout
|
||||
```
|
||||
|
||||
### (6. Get a linker script)
|
||||
|
||||
Some HAL crates require that you manually copy over a file called `memory.x` from the HAL to the root of your project. For nrf52840-hal, this is done automatically so no action is needed. For other HAL crates, see their documentation on where to find an example file.
|
||||
|
||||
The `memory.x` file should look something like:
|
||||
|
||||
```text
|
||||
MEMORY
|
||||
{
|
||||
FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
|
||||
RAM : ORIGIN = 0x20000000, LENGTH = 256K
|
||||
}
|
||||
```
|
||||
|
||||
The `memory.x` file is included in the `cortex-m-rt` linker script `link.x`, and so `link.x` is the one you should tell `rustc` to use (see the `.cargo/config.toml` file where we do that).
|
||||
|
||||
### 7. Run!
|
||||
|
||||
You are now all set to `cargo-run` your first `defmt`-powered application!
|
||||
There are some examples in the `src/bin` directory.
|
||||
|
||||
Start by `cargo run`-ning `my-app/src/bin/hello.rs`:
|
||||
|
||||
```console
|
||||
$ # `rb` is an alias for `run --bin`
|
||||
$ cargo rb hello
|
||||
Finished `dev` profile [optimized + debuginfo] target(s) in 0.01s
|
||||
Running `probe-rs run --chip nrf52840_xxaa --log-format=oneline target/thumbv6m-none-eabi/debug/hello`
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 15.79 KiB/s (took 1s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.19 KiB/s (took 1s) Finished in 1.11s
|
||||
Hello, world!
|
||||
|
||||
$ echo $?
|
||||
0
|
||||
```
|
||||
|
||||
If you're running out of memory (`flip-link` bails with an overflow error), you can decrease the size of the device memory buffer by setting the `DEFMT_RTT_BUFFER_SIZE` environment variable. The default value is 1024 bytes, and powers of two should be used for optimal performance:
|
||||
|
||||
```console
|
||||
$ DEFMT_RTT_BUFFER_SIZE=64 cargo rb hello
|
||||
```
|
||||
|
||||
### (8. Set `rust-analyzer.linkedProjects`)
|
||||
|
||||
If you are using [rust-analyzer] with VS Code for IDE-like features you can add following configuration to your `.vscode/settings.json` to make it work transparently across workspaces. Find the details of this option in the [RA docs].
|
||||
|
||||
```json
|
||||
{
|
||||
"rust-analyzer.linkedProjects": [
|
||||
"Cargo.toml",
|
||||
"firmware/Cargo.toml",
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
[RA docs]: https://rust-analyzer.github.io/manual.html#configuration
|
||||
[rust-analyzer]: https://rust-analyzer.github.io/
|
||||
|
||||
## Running tests
|
||||
|
||||
The template comes configured for running unit tests and integration tests on the target.
|
||||
|
||||
Unit tests reside in the library crate and can test private API; the initial set of unit tests are in `src/lib.rs`.
|
||||
`cargo test --lib` will run those unit tests.
|
||||
|
||||
```console
|
||||
$ cargo test --lib
|
||||
Compiling example v0.1.0 (./knurling-rs/example)
|
||||
Finished `test` profile [optimized + debuginfo] target(s) in 0.15s
|
||||
Running unittests src/lib.rs (target/thumbv6m-none-eabi/debug/deps/example-2b0d0e25d141bf57)
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 15.99 KiB/s (took 1s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.33 KiB/s (took 1s) Finished in 1.10s
|
||||
(1/1) running `it_works`...
|
||||
all tests passed!
|
||||
```
|
||||
|
||||
Integration tests reside in the `tests` directory; the initial set of integration tests are in `tests/integration.rs`.
|
||||
`cargo test --test integration` will run those integration tests.
|
||||
Note that the argument of the `--test` flag must match the name of the test file in the `tests` directory.
|
||||
|
||||
```console
|
||||
$ cargo test --test integration
|
||||
Compiling example v0.1.0 (./knurling-rs/example)
|
||||
Finished `test` profile [optimized + debuginfo] target(s) in 0.10s
|
||||
Running tests/integration.rs (target/thumbv6m-none-eabi/debug/deps/integration-aaaff41151f6a722)
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 16.03 KiB/s (took 0s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.19 KiB/s (took 1s) Finished in 1.11s
|
||||
(1/1) running `it_works`...
|
||||
all tests passed!
|
||||
```
|
||||
|
||||
Note that to add a new test file to the `tests` directory you also need to add a new `[[test]]` section to `Cargo.toml`.
|
||||
|
||||
To run all the tests via `cargo test` the tests need to be explicitly disabled for all the existing binary targets.
|
||||
See `Cargo.toml` for details on how to do this.
|
||||
|
||||
## Support
|
||||
|
||||
`app-template` is part of the [Knurling] project, [Ferrous Systems]' effort at
|
||||
improving tooling used to develop for embedded systems.
|
||||
|
||||
If you think that our work is useful, consider sponsoring it via [GitHub
|
||||
Sponsors].
|
||||
|
||||
## License
|
||||
|
||||
Licensed under either of
|
||||
|
||||
- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
|
||||
http://www.apache.org/licenses/LICENSE-2.0)
|
||||
|
||||
- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
|
||||
|
||||
at your option.
|
||||
|
||||
### Contribution
|
||||
|
||||
Unless you explicitly state otherwise, any contribution intentionally submitted
|
||||
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
|
||||
licensed as above, without any additional terms or conditions.
|
||||
|
||||
[Knurling]: https://knurling.ferrous-systems.com
|
||||
[Ferrous Systems]: https://ferrous-systems.com/
|
||||
[GitHub Sponsors]: https://github.com/sponsors/knurling-rs
|
||||
@@ -1,24 +0,0 @@
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use embassy_executor::Spawner;
|
||||
use embassy_stm32::gpio::{Level, Output, Speed};
|
||||
use embassy_time::{Duration, Timer};
|
||||
use embassy_stm32::init;
|
||||
use embassy_stm32::Config;
|
||||
use panic_halt as _;
|
||||
|
||||
#[embassy_executor::main]
|
||||
async fn main(_spawner: Spawner) {
|
||||
let p = init(Config::default());
|
||||
|
||||
let mut output_pin = Output::new(p.PA3, Level::Low, Speed::Low);
|
||||
let mut _artificial_ground = Output::new(p.PB0, Level::Low, Speed::Low);
|
||||
|
||||
loop {
|
||||
output_pin.set_high();
|
||||
Timer::after(Duration::from_millis(500)).await;
|
||||
// output_pin.set_low();
|
||||
Timer::after(Duration::from_millis(500)).await;
|
||||
}
|
||||
}
|
||||
@@ -1 +0,0 @@
|
||||
#![no_std]
|
||||
@@ -59,7 +59,6 @@
|
||||
echo "cargo flash --release --chip STM32U575ZI"
|
||||
echo "cargo run --bin main"
|
||||
echo "probe-rs run --chip STM32U575ZITxQ target/thumbv8m.main-none-eabihf/release/main"
|
||||
echo "probe-rs erase --chip STM32U575ZITxQ"
|
||||
echo "target/**/build/embassy-stm32-*/out/_generated.rs"
|
||||
'';
|
||||
};
|
||||
|
||||
@@ -13,7 +13,7 @@ async fn main(_spawner: Spawner) {
|
||||
let p = init(Config::default());
|
||||
|
||||
// The user LED on NUCLEO-U575ZI-Q is typically on port B, pin 0 (verify silkscreen)
|
||||
let mut led = Output::new(p.PB14, Level::Low, Speed::Low);
|
||||
let mut led = Output::new(p.PB0, Level::Low, Speed::Low);
|
||||
|
||||
loop {
|
||||
led.set_high();
|
||||
|
||||
460
semestralka_1/Cargo.lock
generated
460
semestralka_1/Cargo.lock
generated
@@ -14,15 +14,6 @@ dependencies = [
|
||||
"zerocopy",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "aho-corasick"
|
||||
version = "1.1.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ddd31a130427c27518df266943a5308ed92d4b226cc639f5a8f1002816174301"
|
||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "aligned"
|
||||
version = "0.4.2"
|
||||
@@ -41,6 +32,33 @@ dependencies = [
|
||||
"stable_deref_trait",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "async_uart"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"cortex-m",
|
||||
"cortex-m-rt",
|
||||
"defmt 1.0.1",
|
||||
"defmt-rtt",
|
||||
"defmt-test",
|
||||
"embassy-executor",
|
||||
"embassy-futures",
|
||||
"embassy-stm32",
|
||||
"embassy-sync",
|
||||
"embassy-time",
|
||||
"embassy-usb",
|
||||
"embedded-graphics",
|
||||
"embedded-hal 1.0.0",
|
||||
"embedded-io",
|
||||
"embedded-io-async",
|
||||
"heapless 0.9.1",
|
||||
"micromath",
|
||||
"panic-halt",
|
||||
"panic-probe",
|
||||
"static_cell",
|
||||
"tinybmp",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "autocfg"
|
||||
version = "1.5.0"
|
||||
@@ -107,32 +125,12 @@ version = "1.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
|
||||
|
||||
[[package]]
|
||||
name = "cc"
|
||||
version = "1.2.44"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "37521ac7aabe3d13122dc382493e20c9416f299d2ccd5b3a5340a2570cdeb0f3"
|
||||
dependencies = [
|
||||
"find-msvc-tools",
|
||||
"shlex",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
|
||||
|
||||
[[package]]
|
||||
name = "cordyceps"
|
||||
version = "0.3.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "688d7fbb8092b8de775ef2536f36c8c31f2bc4006ece2e8d8ad2d17d00ce0a2a"
|
||||
dependencies = [
|
||||
"loom",
|
||||
"tracing",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m"
|
||||
version = "0.7.7"
|
||||
@@ -290,34 +288,6 @@ dependencies = [
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "dma_gpio"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"cortex-m",
|
||||
"cortex-m-rt",
|
||||
"defmt 1.0.1",
|
||||
"defmt-rtt",
|
||||
"defmt-test",
|
||||
"embassy-executor",
|
||||
"embassy-futures",
|
||||
"embassy-hal-internal",
|
||||
"embassy-stm32",
|
||||
"embassy-sync",
|
||||
"embassy-time",
|
||||
"embassy-usb",
|
||||
"embedded-graphics",
|
||||
"embedded-hal 1.0.0",
|
||||
"embedded-io",
|
||||
"embedded-io-async",
|
||||
"heapless 0.9.1",
|
||||
"micromath",
|
||||
"panic-halt",
|
||||
"panic-probe",
|
||||
"static_cell",
|
||||
"tinybmp",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "document-features"
|
||||
version = "0.2.11"
|
||||
@@ -330,7 +300,8 @@ dependencies = [
|
||||
[[package]]
|
||||
name = "embassy-embedded-hal"
|
||||
version = "0.5.0"
|
||||
source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "554e3e840696f54b4c9afcf28a0f24da431c927f4151040020416e7393d6d0d8"
|
||||
dependencies = [
|
||||
"defmt 1.0.1",
|
||||
"embassy-futures",
|
||||
@@ -348,9 +319,9 @@ dependencies = [
|
||||
[[package]]
|
||||
name = "embassy-executor"
|
||||
version = "0.9.1"
|
||||
source = "git+https://github.com/embassy-rs/embassy.git?branch=main#9b1add3d83e98c6c9ae9230bf35cd89bba530a20"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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|
||||
checksum = "81383ab64e72a7a8b8e13130c49e3dab29def6d0c7d76a03087b3cf71c5c6903"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tracing-core"
|
||||
version = "0.1.34"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b9d12581f227e93f094d3af2ae690a574abb8a2b9b7a96e7cfe9647b2b617678"
|
||||
dependencies = [
|
||||
"once_cell",
|
||||
"valuable",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tracing-log"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ee855f1f400bd0e5c02d150ae5de3840039a3f54b025156404e34c23c03f47c3"
|
||||
dependencies = [
|
||||
"log",
|
||||
"once_cell",
|
||||
"tracing-core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tracing-subscriber"
|
||||
version = "0.3.20"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2054a14f5307d601f88daf0553e1cbf472acc4f2c51afab632431cdcd72124d5"
|
||||
dependencies = [
|
||||
"matchers",
|
||||
"nu-ansi-term",
|
||||
"once_cell",
|
||||
"regex-automata",
|
||||
"sharded-slab",
|
||||
"smallvec",
|
||||
"thread_local",
|
||||
"tracing",
|
||||
"tracing-core",
|
||||
"tracing-log",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.19"
|
||||
@@ -1277,12 +1073,6 @@ dependencies = [
|
||||
"usbd-hid-descriptors",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "valuable"
|
||||
version = "0.1.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"
|
||||
|
||||
[[package]]
|
||||
name = "vcell"
|
||||
version = "0.1.3"
|
||||
@@ -1310,132 +1100,6 @@ dependencies = [
|
||||
"vcell",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows"
|
||||
version = "0.61.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9babd3a767a4c1aef6900409f85f5d53ce2544ccdfaa86dad48c91782c6d6893"
|
||||
dependencies = [
|
||||
"windows-collections",
|
||||
"windows-core",
|
||||
"windows-future",
|
||||
"windows-link 0.1.3",
|
||||
"windows-numerics",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-collections"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3beeceb5e5cfd9eb1d76b381630e82c4241ccd0d27f1a39ed41b2760b255c5e8"
|
||||
dependencies = [
|
||||
"windows-core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-core"
|
||||
version = "0.61.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c0fdd3ddb90610c7638aa2b3a3ab2904fb9e5cdbecc643ddb3647212781c4ae3"
|
||||
dependencies = [
|
||||
"windows-implement",
|
||||
"windows-interface",
|
||||
"windows-link 0.1.3",
|
||||
"windows-result",
|
||||
"windows-strings",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-future"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "fc6a41e98427b19fe4b73c550f060b59fa592d7d686537eebf9385621bfbad8e"
|
||||
dependencies = [
|
||||
"windows-core",
|
||||
"windows-link 0.1.3",
|
||||
"windows-threading",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-implement"
|
||||
version = "0.60.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "053e2e040ab57b9dc951b72c264860db7eb3b0200ba345b4e4c3b14f67855ddf"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-interface"
|
||||
version = "0.59.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3f316c4a2570ba26bbec722032c4099d8c8bc095efccdc15688708623367e358"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.107",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-link"
|
||||
version = "0.1.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"
|
||||
|
||||
[[package]]
|
||||
name = "windows-link"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
|
||||
|
||||
[[package]]
|
||||
name = "windows-numerics"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9150af68066c4c5c07ddc0ce30421554771e528bde427614c61038bc2c92c2b1"
|
||||
dependencies = [
|
||||
"windows-core",
|
||||
"windows-link 0.1.3",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-result"
|
||||
version = "0.3.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "56f42bd332cc6c8eac5af113fc0c1fd6a8fd2aa08a0119358686e5160d0586c6"
|
||||
dependencies = [
|
||||
"windows-link 0.1.3",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-strings"
|
||||
version = "0.4.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "56e6c93f3a0c3b36176cb1327a4958a0353d5d166c2a35cb268ace15e91d3b57"
|
||||
dependencies = [
|
||||
"windows-link 0.1.3",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.61.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ae137229bcbd6cdf0f7b80a31df61766145077ddf49416a728b02cb3921ff3fc"
|
||||
dependencies = [
|
||||
"windows-link 0.2.1",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-threading"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b66463ad2e0ea3bbf808b7f1d371311c80e115c0b71d60efc142cafbcfb057a6"
|
||||
dependencies = [
|
||||
"windows-link 0.1.3",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zerocopy"
|
||||
version = "0.8.27"
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
[package]
|
||||
authors = ["Priec <filippriec@gmail.com>"]
|
||||
name = "dma_gpio"
|
||||
name = "async_uart"
|
||||
edition = "2024"
|
||||
version = "0.1.0"
|
||||
|
||||
@@ -10,13 +10,12 @@ cortex-m = { version = "0.7.7", features = ["inline-asm", "critical-section-sing
|
||||
cortex-m-rt = "0.7.5"
|
||||
panic-halt = "1.0.0"
|
||||
|
||||
embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", branch = "main", features = ["arch-cortex-m", "executor-thread"] }
|
||||
embassy-futures = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-sync = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-time = { git = "https://github.com/embassy-rs/embassy.git", branch = "main", features = ["tick-hz-32_768"] }
|
||||
embassy-hal-internal = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-usb = { git = "https://github.com/embassy-rs/embassy.git", branch = "main" }
|
||||
embassy-stm32 = { git = "https://github.com/embassy-rs/embassy.git", branch = "main", features = ["unstable-pac", "stm32u575zi", "time-driver-tim2", "memory-x", "defmt"] }
|
||||
embassy-executor = { version = "0.9.1", features = ["arch-cortex-m", "executor-thread"] }
|
||||
embassy-futures = "0.1.2"
|
||||
embassy-stm32 = { version = "0.4.0", features = ["unstable-pac", "stm32u575zi", "time-driver-any", "memory-x", "defmt"] }
|
||||
embassy-sync = "0.7.2"
|
||||
embassy-time = { version = "0.5.0", features = ["tick-hz-32_768"] }
|
||||
embassy-usb = "0.5.1"
|
||||
|
||||
embedded-hal = "1.0.0"
|
||||
embedded-graphics = "0.8.1"
|
||||
@@ -27,20 +26,8 @@ panic-probe = { version = "1.0.0", features = ["defmt"] }
|
||||
defmt-rtt = "1.1.0"
|
||||
defmt = "1.0.1"
|
||||
static_cell = "2.1.1"
|
||||
embedded-io-async = "0.6.0"
|
||||
embedded-io = "0.6.1"
|
||||
embedded-io-async = "0.6.1"
|
||||
|
||||
[dev-dependencies]
|
||||
defmt-test = "0.4.0"
|
||||
|
||||
[[test]]
|
||||
name = "uart_emulation"
|
||||
harness = false
|
||||
|
||||
[lib]
|
||||
test = false
|
||||
|
||||
[[bin]]
|
||||
name = "main"
|
||||
path = "src/bin/main.rs"
|
||||
test = false
|
||||
|
||||
1
semestralka_1/datasheet.txt
Normal file
1
semestralka_1/datasheet.txt
Normal file
@@ -0,0 +1 @@
|
||||
https://www.ti.com/lit/ug/sprugp1/sprugp1.pdf?ts=1761641486453
|
||||
@@ -1,142 +1,157 @@
|
||||
// src/bin/main.rs
|
||||
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use defmt::*;
|
||||
use embassy_executor::Spawner;
|
||||
use embassy_time::Instant;
|
||||
use embassy_executor::task;
|
||||
use embassy_stm32::dma::Request;
|
||||
use embassy_stm32::gpio::{Input, Output, Level, Pull, Speed};
|
||||
use dma_gpio::software_uart::{
|
||||
dma_timer::{init_tim6_for_uart, init_tim7_for_uart},
|
||||
gpio_dma_uart_rx::rx_dma_task,
|
||||
debug::dump_tim6_regs,
|
||||
};
|
||||
use dma_gpio::config::{BAUD, RX_OVERSAMPLE, TX_OVERSAMPLE};
|
||||
use dma_gpio::config::{TX_RING_BYTES, RX_RING_BYTES};
|
||||
use dma_gpio::software_uart::gpio_dma_uart_tx::tx_dma_task;
|
||||
use static_cell::StaticCell;
|
||||
use embassy_futures::yield_now;
|
||||
use dma_gpio::hw_uart_pc::usart1;
|
||||
use dma_gpio::hw_uart_pc::driver::uart_task;
|
||||
use embassy_stm32::usart::{BufferedUart, Config, BufferedInterruptHandler};
|
||||
use embassy_stm32::peripherals;
|
||||
use embassy_stm32::bind_interrupts;
|
||||
use dma_gpio::config::{PIPE_HW_TX, PIPE_HW_RX, PIPE_SW_TX, PIPE_SW_RX};
|
||||
use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, pipe::Pipe};
|
||||
use embassy_stm32::peripherals;
|
||||
use embassy_stm32::peripherals::{PA2, PA3};
|
||||
use embassy_stm32::gpio::{Input, Output, Pull, Speed, Level};
|
||||
use embassy_stm32::Peripherals;
|
||||
use embassy_stm32::usart::{BufferedInterruptHandler, BufferedUart, Config};
|
||||
use embassy_stm32::timer::low_level::Timer as HardwareTimer;
|
||||
use embassy_stm32::interrupt::{self, typelevel::TIM2 as TIM2_IRQ, Priority};
|
||||
use embassy_stm32::peripherals::TIM2;
|
||||
use embedded_io_async::{Read, Write};
|
||||
use embassy_stm32::time::Hertz;
|
||||
use embassy_time::{Timer, Duration, Instant};
|
||||
use embassy_futures::yield_now;
|
||||
use embassy_futures::select::{select, Either};
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use embassy_sync::signal::Signal;
|
||||
use static_cell::StaticCell;
|
||||
use {defmt_rtt as _, panic_probe as _};
|
||||
use async_uart::safety::{preflight_and_suggest_yield_period, RX_PIPE_CAP, TX_PIPE_CAP};
|
||||
|
||||
bind_interrupts!(struct Irqs {
|
||||
USART1 => BufferedInterruptHandler<peripherals::USART1>;
|
||||
});
|
||||
static UART_TX: Pipe<CriticalSectionRawMutex, TX_PIPE_CAP> = Pipe::new();
|
||||
static UART_RX: Pipe<CriticalSectionRawMutex, RX_PIPE_CAP> = Pipe::new();
|
||||
static TIM2_TICK: Signal<CriticalSectionRawMutex, ()> = Signal::new();
|
||||
|
||||
// Software uart
|
||||
pub const TIM6_UP_REQ: Request = 4;
|
||||
static SW_TX_RING: StaticCell<[u32; TX_RING_BYTES]> = StaticCell::new();
|
||||
static SW_RX_RING: StaticCell<[u8; RX_RING_BYTES]> = StaticCell::new();
|
||||
bind_interrupts!(
|
||||
struct Irqs {
|
||||
USART1 => BufferedInterruptHandler<peripherals::USART1>;
|
||||
}
|
||||
);
|
||||
|
||||
#[embassy_executor::task]
|
||||
async fn uart_task(mut uart: BufferedUart<'static>) {
|
||||
let mut rx_byte = [0u8; 1];
|
||||
let mut tx_buf = [0u8; 64];
|
||||
loop {
|
||||
// Wait for either RX or TX events.
|
||||
let rx_fut = uart.read(&mut rx_byte);
|
||||
let tx_fut = async {
|
||||
// Until there's outgoing data in TX pipe
|
||||
let n = UART_TX.read(&mut tx_buf).await;
|
||||
n
|
||||
};
|
||||
match select(rx_fut, tx_fut).await {
|
||||
// Incoming data from UART hardware
|
||||
Either::First(res) => {
|
||||
if let Ok(_) = res {
|
||||
// Forward to RX pipe
|
||||
let _ = UART_RX.write(&rx_byte).await;
|
||||
let _ = UART_TX.try_write(&rx_byte);
|
||||
}
|
||||
}
|
||||
// Outgoing data waiting in TX pipe
|
||||
Either::Second(n) => {
|
||||
unwrap!(uart.write(&tx_buf[..n]).await);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[embassy_executor::main]
|
||||
async fn main(spawner: Spawner) {
|
||||
info!("boot");
|
||||
info!("tititititi");
|
||||
let p = embassy_stm32::init(Default::default());
|
||||
info!("init m8");
|
||||
|
||||
// HARDWARE UART to the PC
|
||||
let mut cfg = Config::default();
|
||||
cfg.baudrate = BAUD;
|
||||
static TX_BUF: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
static RX_BUF: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
let uart = BufferedUart::new(
|
||||
let tx_buf = TX_BUF.init([0; 256]);
|
||||
let rx_buf = RX_BUF.init([0; 256]);
|
||||
let mut cfg = Config::default();
|
||||
cfg.baudrate = 230_400;
|
||||
|
||||
// Call preflight and get the computed yield period
|
||||
let yield_period = preflight_and_suggest_yield_period(cfg.baudrate);
|
||||
|
||||
let usart = BufferedUart::new(
|
||||
p.USART1,
|
||||
p.PA10, // RX pin
|
||||
p.PA9, // TX pin
|
||||
TX_BUF.init([0; 256]),
|
||||
RX_BUF.init([0; 256]),
|
||||
p.PA10, // RX
|
||||
p.PA9, // TX
|
||||
tx_buf,
|
||||
rx_buf,
|
||||
Irqs,
|
||||
cfg,
|
||||
).unwrap();
|
||||
let yield_period = usart1::setup_and_spawn(BAUD);
|
||||
spawner.spawn(uart_task(uart, &PIPE_HW_TX, &PIPE_HW_RX).unwrap());
|
||||
// END OF HARDWARE UART to the PC
|
||||
info!("starting uart task");
|
||||
spawner.spawn(uart_task(usart)).unwrap();
|
||||
|
||||
// SOFTWARE UART
|
||||
let _rx = Input::new(p.PA3, Pull::Up);
|
||||
let _tx = Output::new(p.PA2, Level::High, Speed::VeryHigh);
|
||||
init_tim6_for_uart(p.TIM6, BAUD, TX_OVERSAMPLE);
|
||||
init_tim7_for_uart(p.TIM7, BAUD, RX_OVERSAMPLE);
|
||||
dump_tim6_regs();
|
||||
|
||||
// Safe one-time init from StaticCell
|
||||
let sw_rx_ring: &mut [u8; RX_RING_BYTES] = SW_RX_RING.init([0; RX_RING_BYTES]);
|
||||
let sw_tx_ring: &mut [u32; TX_RING_BYTES] = SW_TX_RING.init([0; TX_RING_BYTES]);
|
||||
spawner.spawn(rx_dma_task(p.GPDMA1_CH1, sw_rx_ring, &PIPE_SW_RX).unwrap());
|
||||
|
||||
// Create and start the TX DMA ring in main.
|
||||
let bsrr_ptr = embassy_stm32::pac::GPIOA.bsrr().as_ptr() as *mut u32;
|
||||
// let odr_ptr = embassy_stm32::pac::GPIOA.odr().as_ptr() as *mut u32; // NEEDS DECODE CHANGE
|
||||
spawner.spawn(tx_dma_task(p.GPDMA1_CH0, bsrr_ptr, sw_tx_ring, &PIPE_SW_TX).unwrap());
|
||||
// EDN OF SOFTWARE UART
|
||||
|
||||
|
||||
// BRIDGE
|
||||
spawner.spawn(bridge_hw_to_sw(&PIPE_HW_RX, &PIPE_SW_TX).unwrap());
|
||||
spawner.spawn(bridge_sw_to_hw(&PIPE_SW_RX, &PIPE_HW_TX).unwrap());
|
||||
// END OF BRIDGE
|
||||
|
||||
let mut transfer: u32 = 16;
|
||||
let mut rx_buf = [0u8; 64];
|
||||
let mut last_yield = Instant::now();
|
||||
let mut buf = [0u8; 32];
|
||||
|
||||
// Software UART bits init
|
||||
let mut tx = Output::new(p.PA2, Level::Low, Speed::Low);
|
||||
let _rx = Input::new(p.PA3, Pull::Up);
|
||||
|
||||
let tim = HardwareTimer::new(p.TIM2);
|
||||
|
||||
// Configure for 230_400 Hz
|
||||
tim.set_frequency(Hertz(cfg.baudrate*transfer));
|
||||
tim.enable_update_interrupt(true);
|
||||
tim.start();
|
||||
|
||||
tx.set_high();
|
||||
loop {
|
||||
info!("tick start");
|
||||
// Timer::after(Duration::from_millis(100)).await;
|
||||
// info!("tick end");
|
||||
|
||||
let n1 = PIPE_HW_RX.read(&mut buf).await;
|
||||
if n1 > 0 {
|
||||
info!("PC received: {:a}", &buf[..n1]);
|
||||
let _ = PIPE_SW_TX.write(&buf[..n1]).await;
|
||||
info!("SW UART TX sent echo: {:a}", &buf[..n1]);
|
||||
}
|
||||
yield_now().await;
|
||||
TIM2_TICK.wait().await;
|
||||
tx.set_low();
|
||||
TIM2_TICK.wait().await;
|
||||
|
||||
let n2 = PIPE_SW_RX.read(&mut buf).await;
|
||||
if n2 > 0 {
|
||||
info!("SW UART RX received: {:a}", &buf[..n2]);
|
||||
Timer::after(Duration::from_millis(1000)).await;
|
||||
// Poll RX pipe for new data (non-blocking)
|
||||
if let Ok(n) = UART_RX.try_read(&mut rx_buf) {
|
||||
if n > 0 {
|
||||
if let Ok(s) = core::str::from_utf8(&rx_buf[..n]) {
|
||||
info!("RX got: {}", s);
|
||||
} else {
|
||||
info!("RX got (non‑utf8): {:?}", &rx_buf[..n]);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Guaranteed to yield before ISR RX buffer can overflow
|
||||
if Instant::now().duration_since(last_yield) >= yield_period {
|
||||
yield_now().await;
|
||||
last_yield = Instant::now();
|
||||
// info!("Yield mf {}", counter);
|
||||
}
|
||||
|
||||
// Timer::after(Duration::from_micros(1)).await;
|
||||
// Timer::after(Duration::from_secs(5)).await;
|
||||
}
|
||||
}
|
||||
|
||||
#[task]
|
||||
pub async fn bridge_hw_to_sw(
|
||||
hw_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
sw_tx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut buf = [0u8; 64];
|
||||
loop {
|
||||
let n = hw_rx.read(&mut buf).await;
|
||||
if n > 0 {
|
||||
let _ = sw_tx.write(&buf[..n]).await;
|
||||
}
|
||||
}
|
||||
}
|
||||
#[embassy_stm32::interrupt]
|
||||
fn TIM2() {
|
||||
use embassy_stm32::timer::CoreInstance;
|
||||
|
||||
#[task]
|
||||
pub async fn bridge_sw_to_hw(
|
||||
sw_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
hw_tx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut buf = [0u8; 64];
|
||||
loop {
|
||||
let n = sw_rx.read(&mut buf).await;
|
||||
if n > 0 {
|
||||
let _ = hw_tx.write(&buf[..n]).await;
|
||||
}
|
||||
// Access TIM2 core registers directly.
|
||||
let regs = unsafe {
|
||||
embassy_stm32::pac::timer::TimCore::from_ptr(
|
||||
<peripherals::TIM2 as CoreInstance>::regs(),
|
||||
)
|
||||
};
|
||||
|
||||
// Clear update flag to avoid retriggering.
|
||||
let sr = regs.sr().read();
|
||||
if sr.uif() {
|
||||
regs.sr().modify(|r| r.set_uif(false));
|
||||
|
||||
// Signal the waiting task that a tick occurred.
|
||||
TIM2_TICK.signal(());
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,29 +0,0 @@
|
||||
// src/config.rs
|
||||
use crate::software_uart::uart_emulation::{Parity, StopBits, UartConfig};
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
|
||||
pub const BAUD: u32 = 9_600;
|
||||
pub const TX_PIN_BIT: u8 = 2; // PA2
|
||||
pub const RX_PIN_BIT: u8 = 3; // PA3
|
||||
pub const TX_OVERSAMPLE: u16 = 1;
|
||||
pub const RX_OVERSAMPLE: u16 = 16;
|
||||
|
||||
pub const RX_RING_BYTES: usize = 4096;
|
||||
pub const TX_RING_BYTES: usize = 4096;
|
||||
|
||||
pub const PIPE_HW_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_HW_RX_SIZE: usize = 1024;
|
||||
pub const PIPE_SW_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_SW_RX_SIZE: usize = 1024;
|
||||
|
||||
pub static PIPE_HW_TX: Pipe<CriticalSectionRawMutex, PIPE_HW_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_HW_RX: Pipe<CriticalSectionRawMutex, PIPE_HW_RX_SIZE> = Pipe::new();
|
||||
pub static PIPE_SW_TX: Pipe<CriticalSectionRawMutex, PIPE_SW_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_SW_RX: Pipe<CriticalSectionRawMutex, PIPE_SW_RX_SIZE> = Pipe::new();
|
||||
|
||||
pub const UART_CFG: UartConfig = UartConfig {
|
||||
data_bits: 8,
|
||||
parity: Parity::None,
|
||||
stop_bits: StopBits::One,
|
||||
};
|
||||
@@ -1,39 +0,0 @@
|
||||
// src/hw_uart_pc/driver.rs
|
||||
use defmt::unwrap;
|
||||
use embassy_futures::select::{select, Either};
|
||||
use embassy_stm32::usart::BufferedUart;
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use embedded_io_async::{Read, Write};
|
||||
use crate::hw_uart_pc::safety::{RX_PIPE_CAP, TX_PIPE_CAP};
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn uart_task(
|
||||
mut uart: BufferedUart<'static>,
|
||||
tx_pipe: &'static Pipe<CriticalSectionRawMutex, TX_PIPE_CAP>,
|
||||
rx_pipe: &'static Pipe<CriticalSectionRawMutex, RX_PIPE_CAP>,
|
||||
) {
|
||||
let mut rx_byte = [0u8; 1];
|
||||
let mut tx_buf = [0u8; 64];
|
||||
|
||||
loop {
|
||||
let rx_fut = uart.read(&mut rx_byte);
|
||||
let tx_fut = async {
|
||||
let n = tx_pipe.read(&mut tx_buf).await;
|
||||
n
|
||||
};
|
||||
|
||||
match select(rx_fut, tx_fut).await {
|
||||
// Incoming data from UART hardware
|
||||
Either::First(res) => {
|
||||
if let Ok(_) = res {
|
||||
let _ = rx_pipe.write(&rx_byte).await;
|
||||
}
|
||||
}
|
||||
// Outgoing data waiting in TX pipe
|
||||
Either::Second(n) => {
|
||||
unwrap!(uart.write(&tx_buf[..n]).await);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -1,4 +0,0 @@
|
||||
// src/uart/mod.rs
|
||||
pub mod driver;
|
||||
pub mod usart1;
|
||||
pub mod safety;
|
||||
@@ -1,12 +0,0 @@
|
||||
// src/uart/usart1.rs
|
||||
use defmt::info;
|
||||
use embassy_time::Duration;
|
||||
|
||||
use crate::hw_uart_pc::safety::preflight_and_suggest_yield_period;
|
||||
|
||||
pub fn setup_and_spawn(baudrate: u32,) -> Duration {
|
||||
let yield_period: Duration = preflight_and_suggest_yield_period(baudrate);
|
||||
info!("HW USART1 safe");
|
||||
|
||||
yield_period
|
||||
}
|
||||
@@ -1,5 +1,3 @@
|
||||
#![no_std]
|
||||
|
||||
pub mod software_uart;
|
||||
pub mod config;
|
||||
pub mod hw_uart_pc;
|
||||
pub mod safety;
|
||||
// pub mod software_uart;
|
||||
|
||||
@@ -1,43 +0,0 @@
|
||||
// src/software_uart/debug.rs
|
||||
use defmt::info;
|
||||
|
||||
pub fn dump_tim6_regs() {
|
||||
use embassy_stm32::pac::timer::TimBasic;
|
||||
let tim = unsafe { TimBasic::from_ptr(0x4000_1000usize as _) };
|
||||
let sr = tim.sr().read();
|
||||
let dier = tim.dier().read();
|
||||
let cr1 = tim.cr1().read();
|
||||
let arr = tim.arr().read().arr();
|
||||
let psc = tim.psc().read();
|
||||
info!(
|
||||
"TIM6: CR1.CEN={} DIER.UDE={} SR.UIF={} PSC={} ARR={}",
|
||||
cr1.cen(),
|
||||
dier.ude(),
|
||||
sr.uif(),
|
||||
psc,
|
||||
arr
|
||||
);
|
||||
}
|
||||
|
||||
pub fn dump_dma_ch0_regs() {
|
||||
use embassy_stm32::pac::gpdma::Gpdma;
|
||||
let dma = unsafe { Gpdma::from_ptr(0x4002_0000usize as _) };
|
||||
let ch = dma.ch(0);
|
||||
let cr = ch.cr().read();
|
||||
let tr1 = ch.tr1().read();
|
||||
let tr2 = ch.tr2().read();
|
||||
let br1 = ch.br1().read();
|
||||
info!(
|
||||
"GPDMA1_CH0: EN={} PRIO={} SDW={} DDW={} SINC={} DINC={} REQSEL={} SWREQ={} DREQ={} BNDT={}",
|
||||
cr.en(),
|
||||
cr.prio(),
|
||||
tr1.sdw(),
|
||||
tr1.ddw(),
|
||||
tr1.sinc(),
|
||||
tr1.dinc(),
|
||||
tr2.reqsel(),
|
||||
tr2.swreq(),
|
||||
tr2.dreq(),
|
||||
br1.bndt()
|
||||
);
|
||||
}
|
||||
@@ -1,58 +0,0 @@
|
||||
// src/dma_timer.rs
|
||||
|
||||
use embassy_stm32::{
|
||||
peripherals::{TIM6, TIM7},
|
||||
rcc,
|
||||
timer::low_level::Timer,
|
||||
Peri,
|
||||
};
|
||||
use core::mem;
|
||||
use embassy_stm32::timer::BasicInstance;
|
||||
use embassy_stm32::pac::timer::vals::Urs;
|
||||
|
||||
/// Initializes TIM6 to tick at `baud * oversample` frequency.
|
||||
/// Each TIM6 update event triggers one DMA beat.
|
||||
pub fn init_tim6_for_uart<'d>(tim6: Peri<'d, TIM6>, baud: u32, oversample: u16) {
|
||||
rcc::enable_and_reset::<TIM6>();
|
||||
let ll = Timer::new(tim6);
|
||||
configure_basic_timer(&ll, baud, oversample);
|
||||
mem::forget(ll);
|
||||
}
|
||||
|
||||
/// Initializes TIM7 to tick at `baud * oversample` frequency.
|
||||
/// Each TIM7 update event triggers one DMA beat.
|
||||
pub fn init_tim7_for_uart<'d>(tim7: Peri<'d, TIM7>, baud: u32, oversample: u16) {
|
||||
rcc::enable_and_reset::<TIM7>();
|
||||
let ll = Timer::new(tim7);
|
||||
configure_basic_timer(&ll, baud, oversample);
|
||||
mem::forget(ll);
|
||||
}
|
||||
|
||||
// Shared internal helper — identical CR1/ARR setup
|
||||
fn configure_basic_timer<T: BasicInstance>(ll: &Timer<'_, T>, baud: u32, oversample: u16) {
|
||||
let f_timer = rcc::frequency::<T>().0;
|
||||
let target = baud.saturating_mul(oversample.max(1) as u32).max(1);
|
||||
|
||||
// Compute ARR (prescaler = 0)
|
||||
let mut arr = (f_timer / target).saturating_sub(1) as u16;
|
||||
if arr == 0 { arr = 1; }
|
||||
|
||||
ll.regs_basic().cr1().write(|w| {
|
||||
w.set_cen(false);
|
||||
w.set_opm(false);
|
||||
w.set_udis(false);
|
||||
w.set_urs(Urs::ANY_EVENT);
|
||||
});
|
||||
|
||||
ll.regs_basic().psc().write_value(0u16);
|
||||
ll.regs_basic().arr().write(|w| w.set_arr(arr));
|
||||
ll.regs_basic().dier().modify(|w| w.set_ude(true));
|
||||
ll.regs_basic().egr().write(|w| w.set_ug(true));
|
||||
|
||||
ll.regs_basic().cr1().write(|w| {
|
||||
w.set_opm(false);
|
||||
w.set_cen(true);
|
||||
w.set_udis(false);
|
||||
w.set_urs(Urs::ANY_EVENT);
|
||||
});
|
||||
}
|
||||
@@ -1,61 +0,0 @@
|
||||
// src/software_uart/runtime.rs
|
||||
use embassy_executor::task;
|
||||
use embassy_stm32::{
|
||||
dma::Request,
|
||||
peripherals::GPDMA1_CH1,
|
||||
Peri,
|
||||
};
|
||||
use crate::config::RX_PIN_BIT;
|
||||
use embassy_stm32::dma::{
|
||||
ReadableRingBuffer,
|
||||
TransferOptions,
|
||||
};
|
||||
use crate::config::{RX_OVERSAMPLE, UART_CFG};
|
||||
use crate::software_uart::decode_uart_samples;
|
||||
use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, pipe::Pipe};
|
||||
use embassy_futures::yield_now;
|
||||
use defmt::info;
|
||||
|
||||
// datasheet tabulka 137
|
||||
pub const TIM7_UP_REQ: Request = 5;
|
||||
|
||||
/// RX DMA task: reads GPIO samples paced by TIM7 and fills PIPE_RX
|
||||
#[task]
|
||||
pub async fn rx_dma_task(
|
||||
ch: Peri<'static, GPDMA1_CH1>,
|
||||
ring: &'static mut [u8],
|
||||
pipe_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let gpioa_idr = embassy_stm32::pac::GPIOA.idr().as_ptr() as *mut u8;
|
||||
|
||||
let mut opts = TransferOptions::default();
|
||||
opts.half_transfer_ir = true;
|
||||
opts.complete_transfer_ir = true;
|
||||
|
||||
// SAFETY: ring is exclusive to this task
|
||||
let mut rx = unsafe { ReadableRingBuffer::new(ch, TIM7_UP_REQ, gpioa_idr, ring, opts) };
|
||||
rx.start();
|
||||
|
||||
let mut raw_chunk = [0u8; 256];
|
||||
let mut levels = [0u8; 256];
|
||||
loop {
|
||||
info!("rx_dma_task waiting for DMA data...");
|
||||
let _ = rx.read_exact(&mut raw_chunk).await;
|
||||
|
||||
for (i, b) in raw_chunk.iter().enumerate() {
|
||||
levels[i] = ((*b >> RX_PIN_BIT) & 1) as u8;
|
||||
}
|
||||
|
||||
let decoded = decode_uart_samples(&levels, RX_OVERSAMPLE, &UART_CFG);
|
||||
if !decoded.is_empty() {
|
||||
info!("SW RX raw samples (first 32): {:a}", &levels[..32]);
|
||||
info!(
|
||||
"SW RX decoded {} bytes: {:a}",
|
||||
decoded.len(),
|
||||
decoded.as_slice()
|
||||
);
|
||||
}
|
||||
pipe_rx.write(&decoded).await;
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,84 +0,0 @@
|
||||
// src/software_uart/gpio_dma_uart_tx.rs
|
||||
use embassy_executor::task;
|
||||
use embassy_stm32::{
|
||||
dma::{Request, TransferOptions, WritableRingBuffer},
|
||||
peripherals::GPDMA1_CH0,
|
||||
Peri,
|
||||
};
|
||||
use embassy_futures::yield_now;
|
||||
use defmt::info;
|
||||
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use crate::config::{TX_PIN_BIT, UART_CFG};
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use crate::software_uart::uart_emulation::encode_uart_byte_cfg;
|
||||
|
||||
pub const TIM6_UP_REQ: Request = 4;
|
||||
|
||||
pub async fn encode_uart_frames<'a>(
|
||||
pin_bit: u8,
|
||||
bytes: &[u8],
|
||||
out_buf: &'a mut [u32],
|
||||
) -> usize {
|
||||
let mut offset = 0;
|
||||
for &b in bytes {
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(pin_bit, b, &UART_CFG, &mut frame);
|
||||
|
||||
if offset + used <= out_buf.len() {
|
||||
out_buf[offset..offset + used].copy_from_slice(&frame[..used]);
|
||||
offset += used;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
|
||||
// cooperative async yield
|
||||
yield_now().await;
|
||||
}
|
||||
offset
|
||||
}
|
||||
|
||||
/// TX DMA task: encodes UART frames and sends them via DMA at TIM6 rate
|
||||
#[task]
|
||||
pub async fn tx_dma_task(
|
||||
ch: Peri<'static, GPDMA1_CH0>,
|
||||
register: *mut u32, // Either odr or bsrr
|
||||
tx_ring_mem: &'static mut [u32],
|
||||
pipe_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut tx_opts = TransferOptions::default();
|
||||
tx_opts.half_transfer_ir = true;
|
||||
tx_opts.complete_transfer_ir = true;
|
||||
|
||||
// SAFETY: tx_ring is exclusive to this task
|
||||
let mut tx_ring = unsafe {
|
||||
WritableRingBuffer::new(
|
||||
ch,
|
||||
TIM6_UP_REQ,
|
||||
register,
|
||||
tx_ring_mem,
|
||||
tx_opts,
|
||||
)
|
||||
};
|
||||
|
||||
tx_ring.start();
|
||||
info!("TX DMA ring started");
|
||||
|
||||
let mut frame_buf = [0u32; 4096];
|
||||
let mut rx_buf = [0u8; 256];
|
||||
|
||||
loop {
|
||||
let n = pipe_rx.read(&mut rx_buf).await;
|
||||
if n == 0 {
|
||||
yield_now().await;
|
||||
continue;
|
||||
}
|
||||
|
||||
let used = encode_uart_frames(TX_PIN_BIT, &rx_buf[..n], &mut frame_buf).await;
|
||||
if used > 0 {
|
||||
let _ = tx_ring.write_exact(&frame_buf[..used]).await;
|
||||
}
|
||||
info!("tx_dma_task wrote {} words", used);
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,13 +1,4 @@
|
||||
// src/software_uart/mod.rs
|
||||
|
||||
pub mod gpio_dma_uart_tx;
|
||||
pub mod gpio_dma_uart_rx;
|
||||
pub mod dma_timer;
|
||||
pub mod uart_emulation;
|
||||
pub mod debug;
|
||||
|
||||
pub use gpio_dma_uart_tx::*;
|
||||
pub use gpio_dma_uart_rx::*;
|
||||
pub use dma_timer::*;
|
||||
pub use uart_emulation::*;
|
||||
pub use debug::*;
|
||||
pub mod suart;
|
||||
pub use suart::*;
|
||||
|
||||
19
semestralka_1/src/software_uart/suart.rs
Normal file
19
semestralka_1/src/software_uart/suart.rs
Normal file
@@ -0,0 +1,19 @@
|
||||
// src/software_uart/suart.rs
|
||||
|
||||
use embassy_stm32::peripherals::{PA2, PA3};
|
||||
use embassy_stm32::gpio::{Input, Output, Pull, Speed, Level};
|
||||
use embassy_stm32::Peripherals;
|
||||
use embassy_time::Timer;
|
||||
|
||||
pub async fn suart_test(mut tx_pin: PA2, rx_pin: PA3) {
|
||||
let mut tx = Output::new(tx_pin.into(), Level::Low, Speed::Low);
|
||||
let _rx = Input::new(rx_pin.into(), Pull::Up);
|
||||
|
||||
loop {
|
||||
tx.set_high();
|
||||
Timer::after_millis(500).await;
|
||||
|
||||
tx.set_low();
|
||||
Timer::after_millis(500).await;
|
||||
}
|
||||
}
|
||||
@@ -1,151 +0,0 @@
|
||||
// src/software_uart/uart_emulation.rs
|
||||
use heapless::Vec;
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub enum Parity {
|
||||
None,
|
||||
Even,
|
||||
Odd,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub enum StopBits {
|
||||
One,
|
||||
Two,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct UartConfig {
|
||||
pub data_bits: u8,
|
||||
pub parity: Parity,
|
||||
pub stop_bits: StopBits,
|
||||
}
|
||||
|
||||
impl Default for UartConfig {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
data_bits: 8,
|
||||
parity: Parity::None,
|
||||
stop_bits: StopBits::One,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Encodes one byte into a sequence of GPIO BSRR words
|
||||
pub fn encode_uart_byte_cfg(
|
||||
pin_bit: u8,
|
||||
data: u8,
|
||||
cfg: &UartConfig,
|
||||
out: &mut [u32; 12],
|
||||
) -> usize {
|
||||
// GPIOx_BSRR register str. 636 kap. 13.4.7
|
||||
let set_high = |bit: u8| -> u32 { 1u32 << bit };
|
||||
// let set_low = |bit: u8| -> u32 { 0 }; // ODR
|
||||
let set_low = |bit: u8| -> u32 { 1u32 << (bit as u32 + 16) }; // BSRR
|
||||
|
||||
let mut idx = 0usize;
|
||||
|
||||
// START bit (LOW)
|
||||
out[idx] = set_low(pin_bit);
|
||||
idx += 1;
|
||||
|
||||
// Data bits, LSB-first
|
||||
let nbits = cfg.data_bits.clamp(5, 8);
|
||||
for i in 0..nbits {
|
||||
let one = ((data >> i) & 1) != 0;
|
||||
out[idx] = if one { set_high(pin_bit) } else { set_low(pin_bit) };
|
||||
idx += 1;
|
||||
}
|
||||
|
||||
// Parity
|
||||
match cfg.parity {
|
||||
Parity::None => {}
|
||||
Parity::Even | Parity::Odd => {
|
||||
let mask: u8 = if nbits == 8 { 0xFF } else { (1u16 << nbits) as u8 - 1 };
|
||||
let ones = (data & mask).count_ones() & 1;
|
||||
let par_bit_is_one = match cfg.parity {
|
||||
Parity::Even => ones == 1,
|
||||
Parity::Odd => ones == 0,
|
||||
_ => false,
|
||||
};
|
||||
out[idx] = if par_bit_is_one {
|
||||
set_high(pin_bit)
|
||||
} else {
|
||||
set_low(pin_bit)
|
||||
};
|
||||
idx += 1;
|
||||
}
|
||||
}
|
||||
|
||||
// STOP bits (HIGH)
|
||||
let stop_ticks = match cfg.stop_bits {
|
||||
StopBits::One => 1usize,
|
||||
StopBits::Two => 2usize,
|
||||
};
|
||||
for _ in 0..stop_ticks {
|
||||
out[idx] = set_high(pin_bit);
|
||||
idx += 1;
|
||||
}
|
||||
|
||||
idx
|
||||
}
|
||||
|
||||
/// Decode an oversampled stream of logic levels into UART bytes.
|
||||
pub fn decode_uart_samples(
|
||||
samples: &[u8],
|
||||
oversample: u16,
|
||||
cfg: &UartConfig,
|
||||
) -> heapless::Vec<u8, 256> {
|
||||
|
||||
let mut out = Vec::<u8, 256>::new();
|
||||
let mut idx = 0usize;
|
||||
let nbits = cfg.data_bits as usize;
|
||||
|
||||
while idx + (oversample as usize * (nbits + 3)) < samples.len() {
|
||||
// Wait for start bit (falling edge: high -> low)
|
||||
if samples[idx] != 0 && samples[idx + 1] == 0 {
|
||||
// Align to middle of start bit
|
||||
idx += (oversample / 2) as usize;
|
||||
|
||||
// Sanity check start bit really low
|
||||
if samples.get(idx).copied().unwrap_or(1) != 0 {
|
||||
idx += 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
// Sample data bits
|
||||
let mut data: u8 = 0;
|
||||
for bit in 0..nbits {
|
||||
idx += oversample as usize;
|
||||
let bit_val = samples
|
||||
.get(idx)
|
||||
.map(|&b| if b != 0 { 1u8 } else { 0u8 })
|
||||
.unwrap_or(1);
|
||||
data |= bit_val << bit;
|
||||
}
|
||||
|
||||
// Parity: skip / verify
|
||||
match cfg.parity {
|
||||
Parity::None => {}
|
||||
Parity::Even | Parity::Odd => {
|
||||
idx += oversample as usize;
|
||||
// You can optionally add parity check here if needed
|
||||
}
|
||||
}
|
||||
|
||||
// Move past stop bits
|
||||
let stop_skip = match cfg.stop_bits {
|
||||
StopBits::One => oversample as usize,
|
||||
StopBits::Two => (oversample * 2) as usize,
|
||||
};
|
||||
idx += stop_skip;
|
||||
|
||||
// Push decoded byte
|
||||
let _ = out.push(data);
|
||||
} else {
|
||||
idx += 1;
|
||||
}
|
||||
}
|
||||
|
||||
out
|
||||
}
|
||||
@@ -1,8 +1,6 @@
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use stm32u5_blinky as _; // memory layout + panic handler
|
||||
|
||||
// See https://crates.io/crates/defmt-test/0.3.0 for more documentation (e.g. about the 'state'
|
||||
// feature)
|
||||
#[defmt_test::tests]
|
||||
@@ -1,41 +0,0 @@
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use dma_gpio as _;
|
||||
use panic_probe as _;
|
||||
use defmt_rtt as _;
|
||||
|
||||
#[defmt_test::tests]
|
||||
mod tests {
|
||||
use defmt::assert_eq;
|
||||
use dma_gpio::software_uart::uart_emulation::{
|
||||
encode_uart_byte_cfg, UartConfig, Parity, StopBits
|
||||
};
|
||||
|
||||
const TX_PIN_BIT: u8 = 2;
|
||||
|
||||
#[test]
|
||||
fn test_encode_8n1() {
|
||||
let cfg = UartConfig::default();
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(TX_PIN_BIT, 0x55, &cfg, &mut frame);
|
||||
|
||||
assert_eq!(used, 10);
|
||||
assert_eq!(frame[0], 1u32 << 18); // Start LOW
|
||||
assert_eq!(frame[9], 1u32 << 2); // Stop HIGH
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_encode_parity() {
|
||||
let cfg = UartConfig {
|
||||
data_bits: 8,
|
||||
parity: Parity::Even,
|
||||
stop_bits: StopBits::One,
|
||||
};
|
||||
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(TX_PIN_BIT, 0x00, &cfg, &mut frame);
|
||||
|
||||
assert_eq!(used, 11);
|
||||
}
|
||||
}
|
||||
@@ -1,15 +0,0 @@
|
||||
[build]
|
||||
target = "thumbv8m.main-none-eabihf"
|
||||
|
||||
[target.thumbv8m.main-none-eabihf]
|
||||
runner = "probe-rs run --chip STM32U575ZITxQ"
|
||||
|
||||
rustflags = [
|
||||
"-C", "linker=rust-lld",
|
||||
"-C", "link-arg=-Tlink.x",
|
||||
"-C", "link-arg=-Tdefmt.x",
|
||||
"-C", "link-arg=--nmagic",
|
||||
]
|
||||
|
||||
[package.metadata.cargo-flash]
|
||||
chip = "STM32U575ZIT"
|
||||
1
semestralka_1_2hwuart_internal/.gitignore
vendored
1
semestralka_1_2hwuart_internal/.gitignore
vendored
@@ -1 +0,0 @@
|
||||
/target
|
||||
1441
semestralka_1_2hwuart_internal/Cargo.lock
generated
1441
semestralka_1_2hwuart_internal/Cargo.lock
generated
File diff suppressed because it is too large
Load Diff
@@ -1,45 +0,0 @@
|
||||
[package]
|
||||
authors = ["Priec <filippriec@gmail.com>"]
|
||||
name = "dma_gpio"
|
||||
edition = "2024"
|
||||
version = "0.1.0"
|
||||
|
||||
|
||||
[dependencies]
|
||||
cortex-m = { version = "0.7.7", features = ["inline-asm", "critical-section-single-core"] }
|
||||
cortex-m-rt = "0.7.5"
|
||||
panic-halt = "1.0.0"
|
||||
embassy-executor = { path = "/home/priec/programs/embassy/embassy-executor", features = ["arch-cortex-m", "executor-thread"] }
|
||||
embassy-futures = { path = "/home/priec/programs/embassy/embassy-futures" }
|
||||
embassy-sync = { path = "/home/priec/programs/embassy/embassy-sync" }
|
||||
embassy-time = { path = "/home/priec/programs/embassy/embassy-time", features = ["tick-hz-32_768"] }
|
||||
embassy-hal-internal = { path = "/home/priec/programs/embassy/embassy-hal-internal" }
|
||||
embassy-usb = { path = "/home/priec/programs/embassy/embassy-usb" }
|
||||
embassy-stm32 = { path = "/home/priec/programs/embassy/embassy-stm32", features = ["unstable-pac", "stm32u575zi", "time-driver-tim2", "memory-x", "defmt"] }
|
||||
|
||||
embedded-hal = "1.0.0"
|
||||
embedded-graphics = "0.8.1"
|
||||
heapless = { version = "0.9.1", default-features = false }
|
||||
micromath = "2.1.0"
|
||||
tinybmp = "0.6.0"
|
||||
panic-probe = { version = "1.0.0", features = ["defmt"] }
|
||||
defmt-rtt = "1.1.0"
|
||||
defmt = "1.0.1"
|
||||
static_cell = "2.1.1"
|
||||
embedded-io = "0.6.1"
|
||||
embedded-io-async = "0.6.1"
|
||||
|
||||
[dev-dependencies]
|
||||
defmt-test = "0.4.0"
|
||||
|
||||
[[test]]
|
||||
name = "uart_emulation"
|
||||
harness = false
|
||||
|
||||
[lib]
|
||||
test = false
|
||||
|
||||
[[bin]]
|
||||
name = "main"
|
||||
path = "src/bin/main.rs"
|
||||
test = false
|
||||
@@ -1,201 +0,0 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
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|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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|
||||
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|
||||
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|
||||
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|
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|
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|
||||
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|
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|
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|
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|
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|
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|
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|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
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|
||||
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|
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|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
@@ -1,23 +0,0 @@
|
||||
Permission is hereby granted, free of charge, to any
|
||||
person obtaining a copy of this software and associated
|
||||
documentation files (the "Software"), to deal in the
|
||||
Software without restriction, including without
|
||||
limitation the rights to use, copy, modify, merge,
|
||||
publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software
|
||||
is furnished to do so, subject to the following
|
||||
conditions:
|
||||
|
||||
The above copyright notice and this permission notice
|
||||
shall be included in all copies or substantial portions
|
||||
of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
|
||||
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
|
||||
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
||||
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
|
||||
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
|
||||
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
@@ -1,23 +0,0 @@
|
||||
TARGET = thumbv8m.main-none-eabihf
|
||||
CHIP = STM32U575ZI
|
||||
BIN = stm32u5-blinky
|
||||
MODE ?= release
|
||||
TARGET_DIR = target/$(TARGET)/$(MODE)
|
||||
ELF = $(TARGET_DIR)/$(BIN)
|
||||
PROBE = probe-rs
|
||||
|
||||
.PHONY: all build flash clean empty
|
||||
|
||||
all: build
|
||||
|
||||
build:
|
||||
cargo build --$(MODE)
|
||||
|
||||
flash: build
|
||||
$(PROBE) run --chip $(CHIP) $(ELF)
|
||||
|
||||
empty:
|
||||
$(PROBE) erase --chip $(CHIP)
|
||||
|
||||
clean:
|
||||
cargo clean
|
||||
@@ -1,232 +0,0 @@
|
||||
# `app-template`
|
||||
|
||||
> Quickly set up a [`probe-rs`] + [`defmt`] + [`flip-link`] embedded project
|
||||
|
||||
[`probe-rs`]: https://crates.io/crates/probe-rs
|
||||
[`defmt`]: https://github.com/knurling-rs/defmt
|
||||
[`flip-link`]: https://github.com/knurling-rs/flip-link
|
||||
|
||||
## Dependencies
|
||||
|
||||
### 1. `flip-link`:
|
||||
|
||||
```bash
|
||||
cargo install flip-link
|
||||
```
|
||||
|
||||
### 2. `probe-rs`:
|
||||
|
||||
Install probe-rs by following the instructions at <https://probe.rs/docs/getting-started/installation/>.
|
||||
|
||||
### 3. [`cargo-generate`]:
|
||||
|
||||
```bash
|
||||
cargo install cargo-generate
|
||||
```
|
||||
|
||||
[`cargo-generate`]: https://crates.io/crates/cargo-generate
|
||||
|
||||
> *Note:* You can also just clone this repository instead of using `cargo-generate`, but this involves additional manual adjustments.
|
||||
|
||||
## Setup
|
||||
|
||||
### 1. Initialize the project template
|
||||
|
||||
```bash
|
||||
cargo generate \
|
||||
--git https://github.com/knurling-rs/app-template \
|
||||
--branch main \
|
||||
--name my-app
|
||||
```
|
||||
|
||||
If you look into your new `my-app` folder, you'll find that there are a few `TODO`s in the files marking the properties you need to set.
|
||||
|
||||
Let's walk through them together now.
|
||||
|
||||
### 2. Set `probe-rs` chip
|
||||
|
||||
Pick a chip from ` probe-rs chip list` and enter it into `.cargo/config.toml`.
|
||||
|
||||
If, for example, you have a nRF52840 Development Kit as used in one of [our exercises], replace `{{chip}}` with `nRF52840_xxAA`.
|
||||
|
||||
[our workshops]: https://rust-exercises.ferrous-systems.com
|
||||
|
||||
```diff
|
||||
# .cargo/config.toml
|
||||
-runner = ["probe-rs", "run", "--chip", "$CHIP", "--log-format=oneline"]
|
||||
+runner = ["probe-rs", "run", "--chip", "nRF52840_xxAA", "--log-format=oneline"]
|
||||
```
|
||||
|
||||
### 3. Adjust the compilation target
|
||||
|
||||
In `.cargo/config.toml`, pick the right compilation target for your board.
|
||||
|
||||
```diff
|
||||
# .cargo/config.toml
|
||||
[build]
|
||||
-target = "thumbv6m-none-eabi" # Cortex-M0 and Cortex-M0+
|
||||
-# target = "thumbv7m-none-eabi" # Cortex-M3
|
||||
-# target = "thumbv7em-none-eabi" # Cortex-M4 and Cortex-M7 (no FPU)
|
||||
-# target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
|
||||
+target = "thumbv7em-none-eabihf" # Cortex-M4F (with FPU)
|
||||
```
|
||||
|
||||
Add the target with `rustup`.
|
||||
|
||||
```bash
|
||||
rustup target add thumbv7em-none-eabihf
|
||||
```
|
||||
|
||||
### 4. Add a HAL as a dependency
|
||||
|
||||
In `Cargo.toml`, list the Hardware Abstraction Layer (HAL) for your board as a dependency.
|
||||
|
||||
For the nRF52840 you'll want to use the [`nrf52840-hal`].
|
||||
|
||||
[`nrf52840-hal`]: https://crates.io/crates/nrf52840-hal
|
||||
|
||||
```diff
|
||||
# Cargo.toml
|
||||
[dependencies]
|
||||
-# some-hal = "1.2.3"
|
||||
+nrf52840-hal = "0.14.0"
|
||||
```
|
||||
|
||||
⚠️ Note for RP2040 users ⚠️
|
||||
|
||||
You will need to not just specify the `rp-hal` HAL, but a BSP (board support crate) which includes a second stage bootloader. Please find a list of available BSPs [here](https://github.com/rp-rs/rp-hal-boards#packages).
|
||||
|
||||
### 5. Import your HAL
|
||||
|
||||
Now that you have selected a HAL, fix the HAL import in `src/lib.rs`
|
||||
|
||||
```diff
|
||||
// my-app/src/lib.rs
|
||||
-// use some_hal as _; // memory layout
|
||||
+use nrf52840_hal as _; // memory layout
|
||||
```
|
||||
|
||||
### (6. Get a linker script)
|
||||
|
||||
Some HAL crates require that you manually copy over a file called `memory.x` from the HAL to the root of your project. For nrf52840-hal, this is done automatically so no action is needed. For other HAL crates, see their documentation on where to find an example file.
|
||||
|
||||
The `memory.x` file should look something like:
|
||||
|
||||
```text
|
||||
MEMORY
|
||||
{
|
||||
FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
|
||||
RAM : ORIGIN = 0x20000000, LENGTH = 256K
|
||||
}
|
||||
```
|
||||
|
||||
The `memory.x` file is included in the `cortex-m-rt` linker script `link.x`, and so `link.x` is the one you should tell `rustc` to use (see the `.cargo/config.toml` file where we do that).
|
||||
|
||||
### 7. Run!
|
||||
|
||||
You are now all set to `cargo-run` your first `defmt`-powered application!
|
||||
There are some examples in the `src/bin` directory.
|
||||
|
||||
Start by `cargo run`-ning `my-app/src/bin/hello.rs`:
|
||||
|
||||
```console
|
||||
$ # `rb` is an alias for `run --bin`
|
||||
$ cargo rb hello
|
||||
Finished `dev` profile [optimized + debuginfo] target(s) in 0.01s
|
||||
Running `probe-rs run --chip nrf52840_xxaa --log-format=oneline target/thumbv6m-none-eabi/debug/hello`
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 15.79 KiB/s (took 1s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.19 KiB/s (took 1s) Finished in 1.11s
|
||||
Hello, world!
|
||||
|
||||
$ echo $?
|
||||
0
|
||||
```
|
||||
|
||||
If you're running out of memory (`flip-link` bails with an overflow error), you can decrease the size of the device memory buffer by setting the `DEFMT_RTT_BUFFER_SIZE` environment variable. The default value is 1024 bytes, and powers of two should be used for optimal performance:
|
||||
|
||||
```console
|
||||
$ DEFMT_RTT_BUFFER_SIZE=64 cargo rb hello
|
||||
```
|
||||
|
||||
### (8. Set `rust-analyzer.linkedProjects`)
|
||||
|
||||
If you are using [rust-analyzer] with VS Code for IDE-like features you can add following configuration to your `.vscode/settings.json` to make it work transparently across workspaces. Find the details of this option in the [RA docs].
|
||||
|
||||
```json
|
||||
{
|
||||
"rust-analyzer.linkedProjects": [
|
||||
"Cargo.toml",
|
||||
"firmware/Cargo.toml",
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
[RA docs]: https://rust-analyzer.github.io/manual.html#configuration
|
||||
[rust-analyzer]: https://rust-analyzer.github.io/
|
||||
|
||||
## Running tests
|
||||
|
||||
The template comes configured for running unit tests and integration tests on the target.
|
||||
|
||||
Unit tests reside in the library crate and can test private API; the initial set of unit tests are in `src/lib.rs`.
|
||||
`cargo test --lib` will run those unit tests.
|
||||
|
||||
```console
|
||||
$ cargo test --lib
|
||||
Compiling example v0.1.0 (./knurling-rs/example)
|
||||
Finished `test` profile [optimized + debuginfo] target(s) in 0.15s
|
||||
Running unittests src/lib.rs (target/thumbv6m-none-eabi/debug/deps/example-2b0d0e25d141bf57)
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 15.99 KiB/s (took 1s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.33 KiB/s (took 1s) Finished in 1.10s
|
||||
(1/1) running `it_works`...
|
||||
all tests passed!
|
||||
```
|
||||
|
||||
Integration tests reside in the `tests` directory; the initial set of integration tests are in `tests/integration.rs`.
|
||||
`cargo test --test integration` will run those integration tests.
|
||||
Note that the argument of the `--test` flag must match the name of the test file in the `tests` directory.
|
||||
|
||||
```console
|
||||
$ cargo test --test integration
|
||||
Compiling example v0.1.0 (./knurling-rs/example)
|
||||
Finished `test` profile [optimized + debuginfo] target(s) in 0.10s
|
||||
Running tests/integration.rs (target/thumbv6m-none-eabi/debug/deps/integration-aaaff41151f6a722)
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 16.03 KiB/s (took 0s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.19 KiB/s (took 1s) Finished in 1.11s
|
||||
(1/1) running `it_works`...
|
||||
all tests passed!
|
||||
```
|
||||
|
||||
Note that to add a new test file to the `tests` directory you also need to add a new `[[test]]` section to `Cargo.toml`.
|
||||
|
||||
To run all the tests via `cargo test` the tests need to be explicitly disabled for all the existing binary targets.
|
||||
See `Cargo.toml` for details on how to do this.
|
||||
|
||||
## Support
|
||||
|
||||
`app-template` is part of the [Knurling] project, [Ferrous Systems]' effort at
|
||||
improving tooling used to develop for embedded systems.
|
||||
|
||||
If you think that our work is useful, consider sponsoring it via [GitHub
|
||||
Sponsors].
|
||||
|
||||
## License
|
||||
|
||||
Licensed under either of
|
||||
|
||||
- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
|
||||
http://www.apache.org/licenses/LICENSE-2.0)
|
||||
|
||||
- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
|
||||
|
||||
at your option.
|
||||
|
||||
### Contribution
|
||||
|
||||
Unless you explicitly state otherwise, any contribution intentionally submitted
|
||||
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
|
||||
licensed as above, without any additional terms or conditions.
|
||||
|
||||
[Knurling]: https://knurling.ferrous-systems.com
|
||||
[Ferrous Systems]: https://ferrous-systems.com/
|
||||
[GitHub Sponsors]: https://github.com/sponsors/knurling-rs
|
||||
@@ -1,161 +0,0 @@
|
||||
// src/bin/main.rs
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use defmt::*;
|
||||
use embassy_executor::Spawner;
|
||||
use embassy_time::Instant;
|
||||
use embassy_stm32::dma::Request;
|
||||
use embassy_stm32::gpio::{Input, Output, Level, Pull, Speed};
|
||||
use dma_gpio::software_uart::{
|
||||
dma_timer::{init_tim6_for_uart, init_tim7_for_uart},
|
||||
gpio_dma_uart_rx::rx_dma_task,
|
||||
debug::dump_tim6_regs,
|
||||
};
|
||||
use dma_gpio::config::{BAUD, RX_OVERSAMPLE, TX_OVERSAMPLE};
|
||||
use dma_gpio::config::{TX_RING_BYTES, RX_RING_BYTES};
|
||||
use dma_gpio::software_uart::gpio_dma_uart_tx::tx_dma_task;
|
||||
use static_cell::StaticCell;
|
||||
use embassy_futures::yield_now;
|
||||
use dma_gpio::hw_uart_pc::usart1;
|
||||
use dma_gpio::hw_uart_pc::driver::uart_task;
|
||||
use embassy_stm32::usart::{BufferedUart, Config, BufferedInterruptHandler};
|
||||
use embassy_stm32::peripherals;
|
||||
use embassy_stm32::bind_interrupts;
|
||||
use dma_gpio::config::{PIPE_HW_TX, PIPE_HW_RX, PIPE_SW_TX, PIPE_SW_RX};
|
||||
use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, pipe::Pipe};
|
||||
use dma_gpio::hw_uart_internal::usart2;
|
||||
use dma_gpio::hw_uart_internal::driver::uart_task as uart_task_internal;
|
||||
use dma_gpio::config::{PIPE_INT_TX, PIPE_INT_RX};
|
||||
use embassy_time::{Duration, Timer};
|
||||
use {defmt_rtt as _, panic_probe as _};
|
||||
|
||||
bind_interrupts!(struct Irqs {
|
||||
USART1 => BufferedInterruptHandler<peripherals::USART1>;
|
||||
});
|
||||
bind_interrupts!(struct Irqs2 {
|
||||
USART2 => BufferedInterruptHandler<peripherals::USART2>;
|
||||
});
|
||||
|
||||
// Software uart
|
||||
pub const TIM6_UP_REQ: Request = 4;
|
||||
static SW_TX_RING: StaticCell<[u32; TX_RING_BYTES]> = StaticCell::new();
|
||||
static SW_RX_RING: StaticCell<[u8; RX_RING_BYTES]> = StaticCell::new();
|
||||
|
||||
#[embassy_executor::main]
|
||||
async fn main(spawner: Spawner) {
|
||||
info!("boot");
|
||||
let p = embassy_stm32::init(Default::default());
|
||||
info!("init m8");
|
||||
|
||||
|
||||
// HARDWARE UART to the PC
|
||||
let mut cfg = Config::default();
|
||||
cfg.baudrate = BAUD;
|
||||
static TX_BUF: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
static RX_BUF: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
let uart = BufferedUart::new(
|
||||
p.USART1,
|
||||
p.PA10, // RX pin
|
||||
p.PA9, // TX pin
|
||||
TX_BUF.init([0; 256]),
|
||||
RX_BUF.init([0; 256]),
|
||||
Irqs,
|
||||
cfg,
|
||||
).unwrap();
|
||||
let yield_period = usart1::setup_and_spawn(BAUD);
|
||||
spawner.spawn(uart_task(uart, &PIPE_HW_TX, &PIPE_HW_RX).unwrap());
|
||||
// END OF HARDWARE UART to the PC
|
||||
|
||||
// INTERNAL HARDWARE UART (USART2)
|
||||
let mut cfg2 = Config::default();
|
||||
cfg2.baudrate = BAUD;
|
||||
static TX_BUF2: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
static RX_BUF2: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
|
||||
let uart2 = BufferedUart::new(
|
||||
p.USART2,
|
||||
p.PA3, // RX
|
||||
p.PA2, // TX
|
||||
TX_BUF2.init([0; 256]),
|
||||
RX_BUF2.init([0; 256]),
|
||||
Irqs2,
|
||||
cfg2,
|
||||
).unwrap();
|
||||
|
||||
let _ = usart2::setup_and_spawn(BAUD);
|
||||
spawner.spawn(uart_task_internal(uart2, &PIPE_INT_TX, &PIPE_INT_RX).unwrap());
|
||||
info!("USART2 ready");
|
||||
// END OF INTERNAL HARDWARE UART (USART2)
|
||||
|
||||
// USART1 <-> USART2 bridge
|
||||
spawner.spawn(bridge_usart1_rx_to_usart2_tx(&PIPE_HW_RX, &PIPE_INT_TX).unwrap());
|
||||
spawner.spawn(bridge_usart2_rx_to_usart1_tx(&PIPE_INT_RX, &PIPE_HW_TX).unwrap());
|
||||
info!("USART1 <-> USART2 bridge active");
|
||||
// END OF USART1 <-> USART2 bridge
|
||||
|
||||
// SOFTWARE UART
|
||||
// let _rx = Input::new(p.PD6, Pull::Up);
|
||||
let rx_pin = Input::new(p.PD6, Pull::Up);
|
||||
// Configure TX as output (PB0)
|
||||
|
||||
let mut tx_pin = Output::new(p.PB0, Level::High, Speed::VeryHigh);
|
||||
init_tim6_for_uart(p.TIM6, BAUD, TX_OVERSAMPLE);
|
||||
init_tim7_for_uart(p.TIM7, BAUD, RX_OVERSAMPLE);
|
||||
dump_tim6_regs();
|
||||
// EDN OF SOFTWARE UART
|
||||
|
||||
|
||||
let mut last_yield = Instant::now();
|
||||
let mut buf = [0u8; 32];
|
||||
|
||||
let mut last_state: u8 = 0;
|
||||
loop {
|
||||
// info!("tick start");
|
||||
// Timer::after(Duration::from_millis(100)).await;
|
||||
// info!("tick end");
|
||||
|
||||
// let n1 = PIPE_HW_RX.read(&mut buf).await;
|
||||
// if n1 > 0 {
|
||||
// info!("PC received: {:a}", &buf[..n1]);
|
||||
// let _ = PIPE_SW_TX.write(&buf[..n1]).await;
|
||||
// info!("SW UART TX sent echo: {:a}", &buf[..n1]);
|
||||
// }
|
||||
// yield_now().await;
|
||||
|
||||
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn bridge_usart1_rx_to_usart2_tx(
|
||||
usart1_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
usart2_tx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut buf = [0u8; 64];
|
||||
loop {
|
||||
let n = usart1_rx.read(&mut buf).await;
|
||||
if n > 0 {
|
||||
let _ = usart2_tx.write(&buf[..n]).await;
|
||||
info!("bridge: USART1 -> USART2 sent {} bytes", n);
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn bridge_usart2_rx_to_usart1_tx(
|
||||
usart2_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
usart1_tx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut buf = [0u8; 64];
|
||||
loop {
|
||||
let n = usart2_rx.read(&mut buf).await;
|
||||
if n > 0 {
|
||||
let _ = usart1_tx.write(&buf[..n]).await;
|
||||
// info!("bridge: USART2 -> USART1 sent {} bytes", n);
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,35 +0,0 @@
|
||||
// src/config.rs
|
||||
use crate::software_uart::uart_emulation::{Parity, StopBits, UartConfig};
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
|
||||
pub const BAUD: u32 = 9_600;
|
||||
// pub const TX_PIN_BIT: u8 = 2; // PA2
|
||||
// pub const RX_PIN_BIT: u8 = 3; // PA3
|
||||
pub const TX_PIN_BIT: u8 = 0; // PB2
|
||||
pub const RX_PIN_BIT: u8 = 3; // PC3
|
||||
pub const TX_OVERSAMPLE: u16 = 1;
|
||||
pub const RX_OVERSAMPLE: u16 = 16;
|
||||
|
||||
pub const RX_RING_BYTES: usize = 4096;
|
||||
pub const TX_RING_BYTES: usize = 4096;
|
||||
|
||||
pub const PIPE_HW_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_HW_RX_SIZE: usize = 1024;
|
||||
pub const PIPE_SW_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_SW_RX_SIZE: usize = 1024;
|
||||
pub const PIPE_INT_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_INT_RX_SIZE: usize = 1024;
|
||||
|
||||
pub static PIPE_HW_TX: Pipe<CriticalSectionRawMutex, PIPE_HW_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_HW_RX: Pipe<CriticalSectionRawMutex, PIPE_HW_RX_SIZE> = Pipe::new();
|
||||
pub static PIPE_SW_TX: Pipe<CriticalSectionRawMutex, PIPE_SW_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_SW_RX: Pipe<CriticalSectionRawMutex, PIPE_SW_RX_SIZE> = Pipe::new();
|
||||
pub static PIPE_INT_TX: Pipe<CriticalSectionRawMutex, PIPE_INT_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_INT_RX: Pipe<CriticalSectionRawMutex, PIPE_INT_RX_SIZE> = Pipe::new();
|
||||
|
||||
pub const UART_CFG: UartConfig = UartConfig {
|
||||
data_bits: 8,
|
||||
parity: Parity::None,
|
||||
stop_bits: StopBits::One,
|
||||
};
|
||||
@@ -1,41 +0,0 @@
|
||||
// src/hw_uart_internal/driver.rs
|
||||
use defmt::unwrap;
|
||||
use embassy_futures::select::{select, Either};
|
||||
use embassy_stm32::usart::BufferedUart;
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use embedded_io_async::{Read, Write};
|
||||
use crate::hw_uart_pc::safety::{RX_PIPE_CAP, TX_PIPE_CAP};
|
||||
use embassy_futures::yield_now;
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn uart_task(
|
||||
mut uart: BufferedUart<'static>,
|
||||
tx_pipe: &'static Pipe<CriticalSectionRawMutex, TX_PIPE_CAP>,
|
||||
rx_pipe: &'static Pipe<CriticalSectionRawMutex, RX_PIPE_CAP>,
|
||||
) {
|
||||
let mut rx_byte = [0u8; 1];
|
||||
let mut tx_buf = [0u8; 64];
|
||||
|
||||
loop {
|
||||
let rx_fut = uart.read(&mut rx_byte);
|
||||
let tx_fut = async {
|
||||
let n = tx_pipe.read(&mut tx_buf).await;
|
||||
n
|
||||
};
|
||||
|
||||
match select(rx_fut, tx_fut).await {
|
||||
// Incoming data from UART hardware
|
||||
Either::First(res) => {
|
||||
if let Ok(_) = res {
|
||||
let _ = rx_pipe.write(&rx_byte).await;
|
||||
}
|
||||
}
|
||||
// Outgoing data waiting in TX pipe
|
||||
Either::Second(n) => {
|
||||
unwrap!(uart.write(&tx_buf[..n]).await);
|
||||
}
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,4 +0,0 @@
|
||||
// src/hw_uart_internal/mod.rs
|
||||
|
||||
pub mod driver;
|
||||
pub mod usart2;
|
||||
@@ -1,11 +0,0 @@
|
||||
// src/hw_uart_internal/usart2.rs
|
||||
use defmt::info;
|
||||
use embassy_time::Duration;
|
||||
|
||||
use crate::hw_uart_pc::safety::preflight_and_suggest_yield_period;
|
||||
|
||||
pub fn setup_and_spawn(baudrate: u32) -> Duration {
|
||||
let yield_period = preflight_and_suggest_yield_period(baudrate);
|
||||
info!("HW USART2 safe");
|
||||
yield_period
|
||||
}
|
||||
@@ -1,41 +0,0 @@
|
||||
// src/hw_uart_pc/driver.rs
|
||||
use defmt::unwrap;
|
||||
use embassy_futures::select::{select, Either};
|
||||
use embassy_stm32::usart::BufferedUart;
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use embedded_io_async::{Read, Write};
|
||||
use crate::hw_uart_pc::safety::{RX_PIPE_CAP, TX_PIPE_CAP};
|
||||
use embassy_futures::yield_now;
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn uart_task(
|
||||
mut uart: BufferedUart<'static>,
|
||||
tx_pipe: &'static Pipe<CriticalSectionRawMutex, TX_PIPE_CAP>,
|
||||
rx_pipe: &'static Pipe<CriticalSectionRawMutex, RX_PIPE_CAP>,
|
||||
) {
|
||||
let mut rx_byte = [0u8; 1];
|
||||
let mut tx_buf = [0u8; 64];
|
||||
|
||||
loop {
|
||||
let rx_fut = uart.read(&mut rx_byte);
|
||||
let tx_fut = async {
|
||||
let n = tx_pipe.read(&mut tx_buf).await;
|
||||
n
|
||||
};
|
||||
|
||||
match select(rx_fut, tx_fut).await {
|
||||
// Incoming data from UART hardware
|
||||
Either::First(res) => {
|
||||
if let Ok(_) = res {
|
||||
let _ = rx_pipe.write(&rx_byte).await;
|
||||
}
|
||||
}
|
||||
// Outgoing data waiting in TX pipe
|
||||
Either::Second(n) => {
|
||||
unwrap!(uart.write(&tx_buf[..n]).await);
|
||||
}
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,4 +0,0 @@
|
||||
// src/hw_uart_pc/mod.rs
|
||||
pub mod driver;
|
||||
pub mod usart1;
|
||||
pub mod safety;
|
||||
@@ -1,57 +0,0 @@
|
||||
// src/safety.rs
|
||||
use defmt::info;
|
||||
use embassy_time::Duration;
|
||||
|
||||
// ISR RX ring capacity = RX_BUF len
|
||||
const ISR_RX_BUF_CAP: usize = 256;
|
||||
// Yield 1/2 the time it takes to fill ISR RX ring.
|
||||
const YIELD_MARGIN_NUM: u32 = 1;
|
||||
const YIELD_MARGIN_DEN: u32 = 2;
|
||||
// Ensure RX_PIPE_CAP can hold this.
|
||||
const WORST_MAIN_LATENCY_MS: u32 = 20;
|
||||
|
||||
pub const TX_PIPE_CAP: usize = 1024;
|
||||
pub const RX_PIPE_CAP: usize = 1024;
|
||||
|
||||
|
||||
|
||||
/// Perform safety checks and compute yield timing to avoid buffer overflow.
|
||||
///
|
||||
/// # Panics
|
||||
/// Panics if pipe capacities are too small for the configured baud.
|
||||
pub fn preflight_and_suggest_yield_period(baud: u32) -> Duration {
|
||||
// Approx bytes per second for 8N1 (10 bits per byte on the wire)
|
||||
let bytes_per_sec = (baud / 10).max(1);
|
||||
|
||||
// Time until ISR RX ring fills, in microseconds.
|
||||
let t_fill_us = (ISR_RX_BUF_CAP as u64) * 1_000_000u64 / (bytes_per_sec as u64);
|
||||
|
||||
// Choose a yield period as a fraction of t_fill.
|
||||
let yield_us = (t_fill_us as u64)
|
||||
.saturating_mul(YIELD_MARGIN_NUM as u64)
|
||||
/ (YIELD_MARGIN_DEN as u64);
|
||||
|
||||
// Verify RX pipe can absorb a worst-case app latency so uart_task
|
||||
// can always forward without dropping when it runs.
|
||||
let required_rx_pipe = (bytes_per_sec as u64) * (WORST_MAIN_LATENCY_MS as u64) / 1000;
|
||||
|
||||
if (RX_PIPE_CAP as u64) < required_rx_pipe {
|
||||
core::panic!(
|
||||
"RX pipe too small: have {}B, need >= {}B for {}ms at {} bps",
|
||||
RX_PIPE_CAP, required_rx_pipe, WORST_MAIN_LATENCY_MS, baud
|
||||
);
|
||||
}
|
||||
|
||||
info!(
|
||||
"Preflight: baud={}, rx_isr={}B, rx_pipe={}B, bytes/s={}, t_fill_us={}, yield_us={}",
|
||||
baud,
|
||||
ISR_RX_BUF_CAP,
|
||||
RX_PIPE_CAP,
|
||||
bytes_per_sec,
|
||||
t_fill_us,
|
||||
yield_us
|
||||
);
|
||||
|
||||
// Never choose zero.
|
||||
Duration::from_micros(yield_us.max(1) as u64)
|
||||
}
|
||||
@@ -1,12 +0,0 @@
|
||||
// src/uart/usart1.rs
|
||||
use defmt::info;
|
||||
use embassy_time::Duration;
|
||||
|
||||
use crate::hw_uart_pc::safety::preflight_and_suggest_yield_period;
|
||||
|
||||
pub fn setup_and_spawn(baudrate: u32,) -> Duration {
|
||||
let yield_period: Duration = preflight_and_suggest_yield_period(baudrate);
|
||||
info!("HW USART1 safe");
|
||||
|
||||
yield_period
|
||||
}
|
||||
@@ -1,6 +0,0 @@
|
||||
#![no_std]
|
||||
|
||||
pub mod software_uart;
|
||||
pub mod config;
|
||||
pub mod hw_uart_pc;
|
||||
pub mod hw_uart_internal;
|
||||
@@ -1,43 +0,0 @@
|
||||
// src/software_uart/debug.rs
|
||||
use defmt::info;
|
||||
|
||||
pub fn dump_tim6_regs() {
|
||||
use embassy_stm32::pac::timer::TimBasic;
|
||||
let tim = unsafe { TimBasic::from_ptr(0x4000_1000usize as _) };
|
||||
let sr = tim.sr().read();
|
||||
let dier = tim.dier().read();
|
||||
let cr1 = tim.cr1().read();
|
||||
let arr = tim.arr().read().arr();
|
||||
let psc = tim.psc().read();
|
||||
info!(
|
||||
"TIM6: CR1.CEN={} DIER.UDE={} SR.UIF={} PSC={} ARR={}",
|
||||
cr1.cen(),
|
||||
dier.ude(),
|
||||
sr.uif(),
|
||||
psc,
|
||||
arr
|
||||
);
|
||||
}
|
||||
|
||||
pub fn dump_dma_ch0_regs() {
|
||||
use embassy_stm32::pac::gpdma::Gpdma;
|
||||
let dma = unsafe { Gpdma::from_ptr(0x4002_0000usize as _) };
|
||||
let ch = dma.ch(0);
|
||||
let cr = ch.cr().read();
|
||||
let tr1 = ch.tr1().read();
|
||||
let tr2 = ch.tr2().read();
|
||||
let br1 = ch.br1().read();
|
||||
info!(
|
||||
"GPDMA1_CH0: EN={} PRIO={} SDW={} DDW={} SINC={} DINC={} REQSEL={} SWREQ={} DREQ={} BNDT={}",
|
||||
cr.en(),
|
||||
cr.prio(),
|
||||
tr1.sdw(),
|
||||
tr1.ddw(),
|
||||
tr1.sinc(),
|
||||
tr1.dinc(),
|
||||
tr2.reqsel(),
|
||||
tr2.swreq(),
|
||||
tr2.dreq(),
|
||||
br1.bndt()
|
||||
);
|
||||
}
|
||||
@@ -1,58 +0,0 @@
|
||||
// src/dma_timer.rs
|
||||
|
||||
use embassy_stm32::{
|
||||
peripherals::{TIM6, TIM7},
|
||||
rcc,
|
||||
timer::low_level::Timer,
|
||||
Peri,
|
||||
};
|
||||
use core::mem;
|
||||
use embassy_stm32::timer::BasicInstance;
|
||||
use embassy_stm32::pac::timer::vals::Urs;
|
||||
|
||||
/// Initializes TIM6 to tick at `baud * oversample` frequency.
|
||||
/// Each TIM6 update event triggers one DMA beat.
|
||||
pub fn init_tim6_for_uart<'d>(tim6: Peri<'d, TIM6>, baud: u32, oversample: u16) {
|
||||
rcc::enable_and_reset::<TIM6>();
|
||||
let ll = Timer::new(tim6);
|
||||
configure_basic_timer(&ll, baud, oversample);
|
||||
mem::forget(ll);
|
||||
}
|
||||
|
||||
/// Initializes TIM7 to tick at `baud * oversample` frequency.
|
||||
/// Each TIM7 update event triggers one DMA beat.
|
||||
pub fn init_tim7_for_uart<'d>(tim7: Peri<'d, TIM7>, baud: u32, oversample: u16) {
|
||||
rcc::enable_and_reset::<TIM7>();
|
||||
let ll = Timer::new(tim7);
|
||||
configure_basic_timer(&ll, baud, oversample);
|
||||
mem::forget(ll);
|
||||
}
|
||||
|
||||
// Shared internal helper — identical CR1/ARR setup
|
||||
fn configure_basic_timer<T: BasicInstance>(ll: &Timer<'_, T>, baud: u32, oversample: u16) {
|
||||
let f_timer = rcc::frequency::<T>().0;
|
||||
let target = baud.saturating_mul(oversample.max(1) as u32).max(1);
|
||||
|
||||
// Compute ARR (prescaler = 0)
|
||||
let mut arr = (f_timer / target).saturating_sub(1) as u16;
|
||||
if arr == 0 { arr = 1; }
|
||||
|
||||
ll.regs_basic().cr1().write(|w| {
|
||||
w.set_cen(false);
|
||||
w.set_opm(false);
|
||||
w.set_udis(false);
|
||||
w.set_urs(Urs::ANY_EVENT);
|
||||
});
|
||||
|
||||
ll.regs_basic().psc().write_value(0u16);
|
||||
ll.regs_basic().arr().write(|w| w.set_arr(arr));
|
||||
ll.regs_basic().dier().modify(|w| w.set_ude(true));
|
||||
ll.regs_basic().egr().write(|w| w.set_ug(true));
|
||||
|
||||
ll.regs_basic().cr1().write(|w| {
|
||||
w.set_opm(false);
|
||||
w.set_cen(true);
|
||||
w.set_udis(false);
|
||||
w.set_urs(Urs::ANY_EVENT);
|
||||
});
|
||||
}
|
||||
@@ -1,80 +0,0 @@
|
||||
// src/software_uart/runtime.rs
|
||||
use embassy_executor::task;
|
||||
use embassy_stm32::{
|
||||
dma::Request,
|
||||
peripherals::GPDMA1_CH1,
|
||||
Peri,
|
||||
};
|
||||
use crate::config::RX_PIN_BIT;
|
||||
use embassy_stm32::dma::{
|
||||
ReadableRingBuffer,
|
||||
TransferOptions,
|
||||
};
|
||||
use crate::config::{RX_OVERSAMPLE, UART_CFG};
|
||||
use crate::software_uart::decode_uart_samples;
|
||||
use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, pipe::Pipe};
|
||||
use embassy_futures::yield_now;
|
||||
use defmt::info;
|
||||
|
||||
// datasheet tabulka 137
|
||||
pub const TIM7_UP_REQ: Request = 5;
|
||||
|
||||
/// RX DMA task: reads GPIO samples paced by TIM7 and fills PIPE_RX
|
||||
#[task]
|
||||
pub async fn rx_dma_task(
|
||||
ch: Peri<'static, GPDMA1_CH1>,
|
||||
register: *mut u8,
|
||||
ring: &'static mut [u8],
|
||||
pipe_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut opts = TransferOptions::default();
|
||||
opts.half_transfer_ir = true;
|
||||
opts.complete_transfer_ir = true;
|
||||
|
||||
// SAFETY: ring is exclusive to this task
|
||||
let mut rx = unsafe { ReadableRingBuffer::new(ch, TIM7_UP_REQ, register, ring, opts) };
|
||||
rx.start();
|
||||
|
||||
let mut raw_chunk = [0u8; 256];
|
||||
let mut levels = [0u8; 256];
|
||||
let mut last_bytes: [u8; 16] = [0; 16]; // remember previous 16 samples
|
||||
let mut last_value: u8 = 0; // remember previous single IDR sample (optional)
|
||||
|
||||
loop {
|
||||
let _ = rx.read_exact(&mut raw_chunk).await;
|
||||
|
||||
// If nothing has changed (all bytes same as previous), skip logging
|
||||
if raw_chunk[..16] == last_bytes[..] {
|
||||
continue;
|
||||
}
|
||||
|
||||
// Save for next comparison
|
||||
last_bytes.copy_from_slice(&raw_chunk[..16]);
|
||||
let current_avg = raw_chunk[0];
|
||||
|
||||
// Optionally only if single sample changed
|
||||
if current_avg != last_value {
|
||||
last_value = current_avg;
|
||||
|
||||
info!(
|
||||
"DMA change detected: IDR[0..16]={=[u8]:02X} bit{}={}",
|
||||
&raw_chunk[..16],
|
||||
RX_PIN_BIT,
|
||||
(current_avg >> RX_PIN_BIT) & 1
|
||||
);
|
||||
}
|
||||
|
||||
// Extract logic levels as before
|
||||
for (i, b) in raw_chunk.iter().enumerate() {
|
||||
levels[i] = ((*b >> RX_PIN_BIT) & 1) as u8;
|
||||
}
|
||||
|
||||
let decoded = decode_uart_samples(&levels, RX_OVERSAMPLE, &UART_CFG);
|
||||
if !decoded.is_empty() {
|
||||
info!("SW RX decoded {:a}", decoded.as_slice());
|
||||
pipe_rx.write(&decoded).await;
|
||||
}
|
||||
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,84 +0,0 @@
|
||||
// src/software_uart/gpio_dma_uart_tx.rs
|
||||
use embassy_executor::task;
|
||||
use embassy_stm32::{
|
||||
dma::{Request, TransferOptions, WritableRingBuffer},
|
||||
peripherals::GPDMA1_CH0,
|
||||
Peri,
|
||||
};
|
||||
use embassy_futures::yield_now;
|
||||
use defmt::info;
|
||||
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use crate::config::{TX_PIN_BIT, UART_CFG};
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use crate::software_uart::uart_emulation::encode_uart_byte_cfg;
|
||||
|
||||
pub const TIM6_UP_REQ: Request = 4;
|
||||
|
||||
pub async fn encode_uart_frames<'a>(
|
||||
pin_bit: u8,
|
||||
bytes: &[u8],
|
||||
out_buf: &'a mut [u32],
|
||||
) -> usize {
|
||||
let mut offset = 0;
|
||||
for &b in bytes {
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(pin_bit, b, &UART_CFG, &mut frame);
|
||||
|
||||
if offset + used <= out_buf.len() {
|
||||
out_buf[offset..offset + used].copy_from_slice(&frame[..used]);
|
||||
offset += used;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
|
||||
// cooperative async yield
|
||||
yield_now().await;
|
||||
}
|
||||
offset
|
||||
}
|
||||
|
||||
/// TX DMA task: encodes UART frames and sends them via DMA at TIM6 rate
|
||||
#[task]
|
||||
pub async fn tx_dma_task(
|
||||
ch: Peri<'static, GPDMA1_CH0>,
|
||||
register: *mut u32, // Either odr or bsrr
|
||||
tx_ring_mem: &'static mut [u32],
|
||||
pipe_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut tx_opts = TransferOptions::default();
|
||||
tx_opts.half_transfer_ir = true;
|
||||
tx_opts.complete_transfer_ir = true;
|
||||
|
||||
// SAFETY: tx_ring is exclusive to this task
|
||||
let mut tx_ring = unsafe {
|
||||
WritableRingBuffer::new(
|
||||
ch,
|
||||
TIM6_UP_REQ,
|
||||
register,
|
||||
tx_ring_mem,
|
||||
tx_opts,
|
||||
)
|
||||
};
|
||||
|
||||
tx_ring.start();
|
||||
info!("TX DMA ring started");
|
||||
|
||||
let mut frame_buf = [0u32; 4096];
|
||||
let mut rx_buf = [0u8; 256];
|
||||
|
||||
loop {
|
||||
let n = pipe_rx.read(&mut rx_buf).await;
|
||||
if n == 0 {
|
||||
yield_now().await;
|
||||
continue;
|
||||
}
|
||||
|
||||
let used = encode_uart_frames(TX_PIN_BIT, &rx_buf[..n], &mut frame_buf).await;
|
||||
if used > 0 {
|
||||
let _ = tx_ring.write_exact(&frame_buf[..used]).await;
|
||||
}
|
||||
info!("tx_dma_task wrote {} words", used);
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,13 +0,0 @@
|
||||
// src/software_uart/mod.rs
|
||||
|
||||
pub mod gpio_dma_uart_tx;
|
||||
pub mod gpio_dma_uart_rx;
|
||||
pub mod dma_timer;
|
||||
pub mod uart_emulation;
|
||||
pub mod debug;
|
||||
|
||||
pub use gpio_dma_uart_tx::*;
|
||||
pub use gpio_dma_uart_rx::*;
|
||||
pub use dma_timer::*;
|
||||
pub use uart_emulation::*;
|
||||
pub use debug::*;
|
||||
@@ -1,151 +0,0 @@
|
||||
// src/software_uart/uart_emulation.rs
|
||||
use heapless::Vec;
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub enum Parity {
|
||||
None,
|
||||
Even,
|
||||
Odd,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub enum StopBits {
|
||||
One,
|
||||
Two,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct UartConfig {
|
||||
pub data_bits: u8,
|
||||
pub parity: Parity,
|
||||
pub stop_bits: StopBits,
|
||||
}
|
||||
|
||||
impl Default for UartConfig {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
data_bits: 8,
|
||||
parity: Parity::None,
|
||||
stop_bits: StopBits::One,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Encodes one byte into a sequence of GPIO BSRR words
|
||||
pub fn encode_uart_byte_cfg(
|
||||
pin_bit: u8,
|
||||
data: u8,
|
||||
cfg: &UartConfig,
|
||||
out: &mut [u32; 12],
|
||||
) -> usize {
|
||||
// GPIOx_BSRR register str. 636 kap. 13.4.7
|
||||
let set_high = |bit: u8| -> u32 { 1u32 << bit };
|
||||
// let set_low = |bit: u8| -> u32 { 0 }; // ODR
|
||||
let set_low = |bit: u8| -> u32 { 1u32 << (bit as u32 + 16) }; // BSRR
|
||||
|
||||
let mut idx = 0usize;
|
||||
|
||||
// START bit (LOW)
|
||||
out[idx] = set_low(pin_bit);
|
||||
idx += 1;
|
||||
|
||||
// Data bits, LSB-first
|
||||
let nbits = cfg.data_bits.clamp(5, 8);
|
||||
for i in 0..nbits {
|
||||
let one = ((data >> i) & 1) != 0;
|
||||
out[idx] = if one { set_high(pin_bit) } else { set_low(pin_bit) };
|
||||
idx += 1;
|
||||
}
|
||||
|
||||
// Parity
|
||||
match cfg.parity {
|
||||
Parity::None => {}
|
||||
Parity::Even | Parity::Odd => {
|
||||
let mask: u8 = if nbits == 8 { 0xFF } else { (1u16 << nbits) as u8 - 1 };
|
||||
let ones = (data & mask).count_ones() & 1;
|
||||
let par_bit_is_one = match cfg.parity {
|
||||
Parity::Even => ones == 1,
|
||||
Parity::Odd => ones == 0,
|
||||
_ => false,
|
||||
};
|
||||
out[idx] = if par_bit_is_one {
|
||||
set_high(pin_bit)
|
||||
} else {
|
||||
set_low(pin_bit)
|
||||
};
|
||||
idx += 1;
|
||||
}
|
||||
}
|
||||
|
||||
// STOP bits (HIGH)
|
||||
let stop_ticks = match cfg.stop_bits {
|
||||
StopBits::One => 1usize,
|
||||
StopBits::Two => 2usize,
|
||||
};
|
||||
for _ in 0..stop_ticks {
|
||||
out[idx] = set_high(pin_bit);
|
||||
idx += 1;
|
||||
}
|
||||
|
||||
idx
|
||||
}
|
||||
|
||||
/// Decode an oversampled stream of logic levels into UART bytes.
|
||||
pub fn decode_uart_samples(
|
||||
samples: &[u8],
|
||||
oversample: u16,
|
||||
cfg: &UartConfig,
|
||||
) -> heapless::Vec<u8, 256> {
|
||||
|
||||
let mut out = Vec::<u8, 256>::new();
|
||||
let mut idx = 0usize;
|
||||
let nbits = cfg.data_bits as usize;
|
||||
|
||||
while idx + (oversample as usize * (nbits + 3)) < samples.len() {
|
||||
// Wait for start bit (falling edge: high -> low)
|
||||
if samples[idx] != 0 && samples[idx + 1] == 0 {
|
||||
// Align to middle of start bit
|
||||
idx += (oversample / 2) as usize;
|
||||
|
||||
// Sanity check start bit really low
|
||||
if samples.get(idx).copied().unwrap_or(1) != 0 {
|
||||
idx += 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
// Sample data bits
|
||||
let mut data: u8 = 0;
|
||||
for bit in 0..nbits {
|
||||
idx += oversample as usize;
|
||||
let bit_val = samples
|
||||
.get(idx)
|
||||
.map(|&b| if b != 0 { 1u8 } else { 0u8 })
|
||||
.unwrap_or(1);
|
||||
data |= bit_val << bit;
|
||||
}
|
||||
|
||||
// Parity: skip / verify
|
||||
match cfg.parity {
|
||||
Parity::None => {}
|
||||
Parity::Even | Parity::Odd => {
|
||||
idx += oversample as usize;
|
||||
// You can optionally add parity check here if needed
|
||||
}
|
||||
}
|
||||
|
||||
// Move past stop bits
|
||||
let stop_skip = match cfg.stop_bits {
|
||||
StopBits::One => oversample as usize,
|
||||
StopBits::Two => (oversample * 2) as usize,
|
||||
};
|
||||
idx += stop_skip;
|
||||
|
||||
// Push decoded byte
|
||||
let _ = out.push(data);
|
||||
} else {
|
||||
idx += 1;
|
||||
}
|
||||
}
|
||||
|
||||
out
|
||||
}
|
||||
@@ -1,41 +0,0 @@
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use dma_gpio as _;
|
||||
use panic_probe as _;
|
||||
use defmt_rtt as _;
|
||||
|
||||
#[defmt_test::tests]
|
||||
mod tests {
|
||||
use defmt::assert_eq;
|
||||
use dma_gpio::software_uart::uart_emulation::{
|
||||
encode_uart_byte_cfg, UartConfig, Parity, StopBits
|
||||
};
|
||||
|
||||
const TX_PIN_BIT: u8 = 2;
|
||||
|
||||
#[test]
|
||||
fn test_encode_8n1() {
|
||||
let cfg = UartConfig::default();
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(TX_PIN_BIT, 0x55, &cfg, &mut frame);
|
||||
|
||||
assert_eq!(used, 10);
|
||||
assert_eq!(frame[0], 1u32 << 18); // Start LOW
|
||||
assert_eq!(frame[9], 1u32 << 2); // Stop HIGH
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_encode_parity() {
|
||||
let cfg = UartConfig {
|
||||
data_bits: 8,
|
||||
parity: Parity::Even,
|
||||
stop_bits: StopBits::One,
|
||||
};
|
||||
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(TX_PIN_BIT, 0x00, &cfg, &mut frame);
|
||||
|
||||
assert_eq!(used, 11);
|
||||
}
|
||||
}
|
||||
@@ -1,15 +0,0 @@
|
||||
[build]
|
||||
target = "thumbv8m.main-none-eabihf"
|
||||
|
||||
[target.thumbv8m.main-none-eabihf]
|
||||
runner = "probe-rs run --chip STM32U575ZITxQ"
|
||||
|
||||
rustflags = [
|
||||
"-C", "linker=rust-lld",
|
||||
"-C", "link-arg=-Tlink.x",
|
||||
"-C", "link-arg=-Tdefmt.x",
|
||||
"-C", "link-arg=--nmagic",
|
||||
]
|
||||
|
||||
[package.metadata.cargo-flash]
|
||||
chip = "STM32U575ZIT"
|
||||
1
semestralka_1_connected/.gitignore
vendored
1
semestralka_1_connected/.gitignore
vendored
@@ -1 +0,0 @@
|
||||
/target
|
||||
1441
semestralka_1_connected/Cargo.lock
generated
1441
semestralka_1_connected/Cargo.lock
generated
File diff suppressed because it is too large
Load Diff
@@ -1,49 +0,0 @@
|
||||
[package]
|
||||
authors = ["Priec <filippriec@gmail.com>"]
|
||||
name = "dma_gpio"
|
||||
edition = "2024"
|
||||
version = "0.1.0"
|
||||
|
||||
|
||||
[dependencies]
|
||||
cortex-m = { version = "0.7.7", features = ["inline-asm", "critical-section-single-core"] }
|
||||
cortex-m-rt = "0.7.5"
|
||||
panic-halt = "1.0.0"
|
||||
embassy-executor = { path = "/home/priec/programs/embassy/embassy-executor", features = ["arch-cortex-m", "executor-thread"] }
|
||||
embassy-futures = { path = "/home/priec/programs/embassy/embassy-futures" }
|
||||
embassy-sync = { path = "/home/priec/programs/embassy/embassy-sync" }
|
||||
embassy-time = { path = "/home/priec/programs/embassy/embassy-time", features = ["tick-hz-32_768"] }
|
||||
embassy-hal-internal = { path = "/home/priec/programs/embassy/embassy-hal-internal" }
|
||||
embassy-usb = { path = "/home/priec/programs/embassy/embassy-usb" }
|
||||
embassy-stm32 = { path = "/home/priec/programs/embassy/embassy-stm32", features = ["unstable-pac", "stm32u575zi", "time-driver-tim2", "memory-x", "defmt"] }
|
||||
|
||||
embedded-hal = "1.0.0"
|
||||
embedded-graphics = "0.8.1"
|
||||
heapless = { version = "0.9.1", default-features = false }
|
||||
micromath = "2.1.0"
|
||||
tinybmp = "0.6.0"
|
||||
panic-probe = { version = "1.0.0", features = ["defmt"] }
|
||||
defmt-rtt = "1.1.0"
|
||||
defmt = "1.0.1"
|
||||
static_cell = "2.1.1"
|
||||
embedded-io = "0.6.1"
|
||||
embedded-io-async = "0.6.1"
|
||||
|
||||
[dev-dependencies]
|
||||
defmt-test = "0.4.0"
|
||||
|
||||
[[test]]
|
||||
name = "uart_emulation"
|
||||
harness = false
|
||||
|
||||
[lib]
|
||||
test = false
|
||||
|
||||
[[bin]]
|
||||
name = "main"
|
||||
path = "src/bin/main.rs"
|
||||
test = false
|
||||
|
||||
[profile.dev]
|
||||
opt-level = 3
|
||||
codegen-units = 1
|
||||
@@ -1,201 +0,0 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
||||
of this License, Derivative Works shall not include works that remain
|
||||
separable from, or merely link (or bind by name) to the interfaces of,
|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
the original version of the Work and any modifications or additions
|
||||
to that Work or Derivative Works thereof, that is intentionally
|
||||
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||
or by an individual or Legal Entity authorized to submit on behalf of
|
||||
the copyright owner. For the purposes of this definition, "submitted"
|
||||
means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
|
||||
communication on electronic mailing lists, source code control systems,
|
||||
and issue tracking systems that are managed by, or on behalf of, the
|
||||
Licensor for the purpose of discussing and improving the Work, but
|
||||
excluding communication that is conspicuously marked or otherwise
|
||||
designated in writing by the copyright owner as "Not a Contribution."
|
||||
|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||
on behalf of whom a Contribution has been received by Licensor and
|
||||
subsequently incorporated within the Work.
|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
copyright license to reproduce, prepare Derivative Works of,
|
||||
publicly display, publicly perform, sublicense, and distribute the
|
||||
Work and such Derivative Works in Source or Object form.
|
||||
|
||||
3. Grant of Patent License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
(except as stated in this section) patent license to make, have made,
|
||||
use, offer to sell, sell, import, and otherwise transfer the Work,
|
||||
where such license applies only to those patent claims licensable
|
||||
by such Contributor that are necessarily infringed by their
|
||||
Contribution(s) alone or by combination of their Contribution(s)
|
||||
with the Work to which such Contribution(s) was submitted. If You
|
||||
institute patent litigation against any entity (including a
|
||||
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
||||
Work or Derivative Works thereof in any medium, with or without
|
||||
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|
||||
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|
||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
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||||
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|
||||
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|
||||
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|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
||||
within such NOTICE file, excluding those notices that do not
|
||||
pertain to any part of the Derivative Works, in at least one
|
||||
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|
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|
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|
||||
within a display generated by the Derivative Works, if and
|
||||
wherever such third-party notices normally appear. The contents
|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
reproduction, and distribution of the Work otherwise complies with
|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
this License, without any additional terms or conditions.
|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
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|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied, including, without limitation, any warranties or conditions
|
||||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||
appropriateness of using or redistributing the Work and assume any
|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
||||
@@ -1,23 +0,0 @@
|
||||
Permission is hereby granted, free of charge, to any
|
||||
person obtaining a copy of this software and associated
|
||||
documentation files (the "Software"), to deal in the
|
||||
Software without restriction, including without
|
||||
limitation the rights to use, copy, modify, merge,
|
||||
publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software
|
||||
is furnished to do so, subject to the following
|
||||
conditions:
|
||||
|
||||
The above copyright notice and this permission notice
|
||||
shall be included in all copies or substantial portions
|
||||
of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
|
||||
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
|
||||
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
||||
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
|
||||
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
|
||||
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
||||
@@ -1,23 +0,0 @@
|
||||
TARGET = thumbv8m.main-none-eabihf
|
||||
CHIP = STM32U575ZI
|
||||
BIN = stm32u5-blinky
|
||||
MODE ?= release
|
||||
TARGET_DIR = target/$(TARGET)/$(MODE)
|
||||
ELF = $(TARGET_DIR)/$(BIN)
|
||||
PROBE = probe-rs
|
||||
|
||||
.PHONY: all build flash clean empty
|
||||
|
||||
all: build
|
||||
|
||||
build:
|
||||
cargo build --$(MODE)
|
||||
|
||||
flash: build
|
||||
$(PROBE) run --chip $(CHIP) $(ELF)
|
||||
|
||||
empty:
|
||||
$(PROBE) erase --chip $(CHIP)
|
||||
|
||||
clean:
|
||||
cargo clean
|
||||
@@ -1,232 +0,0 @@
|
||||
# `app-template`
|
||||
|
||||
> Quickly set up a [`probe-rs`] + [`defmt`] + [`flip-link`] embedded project
|
||||
|
||||
[`probe-rs`]: https://crates.io/crates/probe-rs
|
||||
[`defmt`]: https://github.com/knurling-rs/defmt
|
||||
[`flip-link`]: https://github.com/knurling-rs/flip-link
|
||||
|
||||
## Dependencies
|
||||
|
||||
### 1. `flip-link`:
|
||||
|
||||
```bash
|
||||
cargo install flip-link
|
||||
```
|
||||
|
||||
### 2. `probe-rs`:
|
||||
|
||||
Install probe-rs by following the instructions at <https://probe.rs/docs/getting-started/installation/>.
|
||||
|
||||
### 3. [`cargo-generate`]:
|
||||
|
||||
```bash
|
||||
cargo install cargo-generate
|
||||
```
|
||||
|
||||
[`cargo-generate`]: https://crates.io/crates/cargo-generate
|
||||
|
||||
> *Note:* You can also just clone this repository instead of using `cargo-generate`, but this involves additional manual adjustments.
|
||||
|
||||
## Setup
|
||||
|
||||
### 1. Initialize the project template
|
||||
|
||||
```bash
|
||||
cargo generate \
|
||||
--git https://github.com/knurling-rs/app-template \
|
||||
--branch main \
|
||||
--name my-app
|
||||
```
|
||||
|
||||
If you look into your new `my-app` folder, you'll find that there are a few `TODO`s in the files marking the properties you need to set.
|
||||
|
||||
Let's walk through them together now.
|
||||
|
||||
### 2. Set `probe-rs` chip
|
||||
|
||||
Pick a chip from ` probe-rs chip list` and enter it into `.cargo/config.toml`.
|
||||
|
||||
If, for example, you have a nRF52840 Development Kit as used in one of [our exercises], replace `{{chip}}` with `nRF52840_xxAA`.
|
||||
|
||||
[our workshops]: https://rust-exercises.ferrous-systems.com
|
||||
|
||||
```diff
|
||||
# .cargo/config.toml
|
||||
-runner = ["probe-rs", "run", "--chip", "$CHIP", "--log-format=oneline"]
|
||||
+runner = ["probe-rs", "run", "--chip", "nRF52840_xxAA", "--log-format=oneline"]
|
||||
```
|
||||
|
||||
### 3. Adjust the compilation target
|
||||
|
||||
In `.cargo/config.toml`, pick the right compilation target for your board.
|
||||
|
||||
```diff
|
||||
# .cargo/config.toml
|
||||
[build]
|
||||
-target = "thumbv6m-none-eabi" # Cortex-M0 and Cortex-M0+
|
||||
-# target = "thumbv7m-none-eabi" # Cortex-M3
|
||||
-# target = "thumbv7em-none-eabi" # Cortex-M4 and Cortex-M7 (no FPU)
|
||||
-# target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
|
||||
+target = "thumbv7em-none-eabihf" # Cortex-M4F (with FPU)
|
||||
```
|
||||
|
||||
Add the target with `rustup`.
|
||||
|
||||
```bash
|
||||
rustup target add thumbv7em-none-eabihf
|
||||
```
|
||||
|
||||
### 4. Add a HAL as a dependency
|
||||
|
||||
In `Cargo.toml`, list the Hardware Abstraction Layer (HAL) for your board as a dependency.
|
||||
|
||||
For the nRF52840 you'll want to use the [`nrf52840-hal`].
|
||||
|
||||
[`nrf52840-hal`]: https://crates.io/crates/nrf52840-hal
|
||||
|
||||
```diff
|
||||
# Cargo.toml
|
||||
[dependencies]
|
||||
-# some-hal = "1.2.3"
|
||||
+nrf52840-hal = "0.14.0"
|
||||
```
|
||||
|
||||
⚠️ Note for RP2040 users ⚠️
|
||||
|
||||
You will need to not just specify the `rp-hal` HAL, but a BSP (board support crate) which includes a second stage bootloader. Please find a list of available BSPs [here](https://github.com/rp-rs/rp-hal-boards#packages).
|
||||
|
||||
### 5. Import your HAL
|
||||
|
||||
Now that you have selected a HAL, fix the HAL import in `src/lib.rs`
|
||||
|
||||
```diff
|
||||
// my-app/src/lib.rs
|
||||
-// use some_hal as _; // memory layout
|
||||
+use nrf52840_hal as _; // memory layout
|
||||
```
|
||||
|
||||
### (6. Get a linker script)
|
||||
|
||||
Some HAL crates require that you manually copy over a file called `memory.x` from the HAL to the root of your project. For nrf52840-hal, this is done automatically so no action is needed. For other HAL crates, see their documentation on where to find an example file.
|
||||
|
||||
The `memory.x` file should look something like:
|
||||
|
||||
```text
|
||||
MEMORY
|
||||
{
|
||||
FLASH : ORIGIN = 0x00000000, LENGTH = 1024K
|
||||
RAM : ORIGIN = 0x20000000, LENGTH = 256K
|
||||
}
|
||||
```
|
||||
|
||||
The `memory.x` file is included in the `cortex-m-rt` linker script `link.x`, and so `link.x` is the one you should tell `rustc` to use (see the `.cargo/config.toml` file where we do that).
|
||||
|
||||
### 7. Run!
|
||||
|
||||
You are now all set to `cargo-run` your first `defmt`-powered application!
|
||||
There are some examples in the `src/bin` directory.
|
||||
|
||||
Start by `cargo run`-ning `my-app/src/bin/hello.rs`:
|
||||
|
||||
```console
|
||||
$ # `rb` is an alias for `run --bin`
|
||||
$ cargo rb hello
|
||||
Finished `dev` profile [optimized + debuginfo] target(s) in 0.01s
|
||||
Running `probe-rs run --chip nrf52840_xxaa --log-format=oneline target/thumbv6m-none-eabi/debug/hello`
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 15.79 KiB/s (took 1s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.19 KiB/s (took 1s) Finished in 1.11s
|
||||
Hello, world!
|
||||
|
||||
$ echo $?
|
||||
0
|
||||
```
|
||||
|
||||
If you're running out of memory (`flip-link` bails with an overflow error), you can decrease the size of the device memory buffer by setting the `DEFMT_RTT_BUFFER_SIZE` environment variable. The default value is 1024 bytes, and powers of two should be used for optimal performance:
|
||||
|
||||
```console
|
||||
$ DEFMT_RTT_BUFFER_SIZE=64 cargo rb hello
|
||||
```
|
||||
|
||||
### (8. Set `rust-analyzer.linkedProjects`)
|
||||
|
||||
If you are using [rust-analyzer] with VS Code for IDE-like features you can add following configuration to your `.vscode/settings.json` to make it work transparently across workspaces. Find the details of this option in the [RA docs].
|
||||
|
||||
```json
|
||||
{
|
||||
"rust-analyzer.linkedProjects": [
|
||||
"Cargo.toml",
|
||||
"firmware/Cargo.toml",
|
||||
]
|
||||
}
|
||||
```
|
||||
|
||||
[RA docs]: https://rust-analyzer.github.io/manual.html#configuration
|
||||
[rust-analyzer]: https://rust-analyzer.github.io/
|
||||
|
||||
## Running tests
|
||||
|
||||
The template comes configured for running unit tests and integration tests on the target.
|
||||
|
||||
Unit tests reside in the library crate and can test private API; the initial set of unit tests are in `src/lib.rs`.
|
||||
`cargo test --lib` will run those unit tests.
|
||||
|
||||
```console
|
||||
$ cargo test --lib
|
||||
Compiling example v0.1.0 (./knurling-rs/example)
|
||||
Finished `test` profile [optimized + debuginfo] target(s) in 0.15s
|
||||
Running unittests src/lib.rs (target/thumbv6m-none-eabi/debug/deps/example-2b0d0e25d141bf57)
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 15.99 KiB/s (took 1s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.33 KiB/s (took 1s) Finished in 1.10s
|
||||
(1/1) running `it_works`...
|
||||
all tests passed!
|
||||
```
|
||||
|
||||
Integration tests reside in the `tests` directory; the initial set of integration tests are in `tests/integration.rs`.
|
||||
`cargo test --test integration` will run those integration tests.
|
||||
Note that the argument of the `--test` flag must match the name of the test file in the `tests` directory.
|
||||
|
||||
```console
|
||||
$ cargo test --test integration
|
||||
Compiling example v0.1.0 (./knurling-rs/example)
|
||||
Finished `test` profile [optimized + debuginfo] target(s) in 0.10s
|
||||
Running tests/integration.rs (target/thumbv6m-none-eabi/debug/deps/integration-aaaff41151f6a722)
|
||||
Erasing ✔ 100% [####################] 8.00 KiB @ 16.03 KiB/s (took 0s)
|
||||
Programming ✔ 100% [####################] 8.00 KiB @ 13.19 KiB/s (took 1s) Finished in 1.11s
|
||||
(1/1) running `it_works`...
|
||||
all tests passed!
|
||||
```
|
||||
|
||||
Note that to add a new test file to the `tests` directory you also need to add a new `[[test]]` section to `Cargo.toml`.
|
||||
|
||||
To run all the tests via `cargo test` the tests need to be explicitly disabled for all the existing binary targets.
|
||||
See `Cargo.toml` for details on how to do this.
|
||||
|
||||
## Support
|
||||
|
||||
`app-template` is part of the [Knurling] project, [Ferrous Systems]' effort at
|
||||
improving tooling used to develop for embedded systems.
|
||||
|
||||
If you think that our work is useful, consider sponsoring it via [GitHub
|
||||
Sponsors].
|
||||
|
||||
## License
|
||||
|
||||
Licensed under either of
|
||||
|
||||
- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
|
||||
http://www.apache.org/licenses/LICENSE-2.0)
|
||||
|
||||
- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
|
||||
|
||||
at your option.
|
||||
|
||||
### Contribution
|
||||
|
||||
Unless you explicitly state otherwise, any contribution intentionally submitted
|
||||
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
|
||||
licensed as above, without any additional terms or conditions.
|
||||
|
||||
[Knurling]: https://knurling.ferrous-systems.com
|
||||
[Ferrous Systems]: https://ferrous-systems.com/
|
||||
[GitHub Sponsors]: https://github.com/sponsors/knurling-rs
|
||||
@@ -1,190 +0,0 @@
|
||||
// src/bin/main.rs
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use defmt::*;
|
||||
use core::cell::RefCell;
|
||||
use cortex_m::interrupt::Mutex;
|
||||
use embassy_executor::Spawner;
|
||||
use embassy_futures::yield_now;
|
||||
use embassy_sync::{
|
||||
blocking_mutex::raw::CriticalSectionRawMutex,
|
||||
channel::Channel,
|
||||
pipe::Pipe,
|
||||
};
|
||||
use embassy_time::{Duration, Instant, Timer};
|
||||
use embassy_stm32::{
|
||||
bind_interrupts,
|
||||
dma::Request,
|
||||
gpio::{Input, Level, Output, Pull, Speed},
|
||||
interrupt,
|
||||
pac,
|
||||
peripherals,
|
||||
rcc::{self, Pll, PllDiv, PllMul, PllPreDiv, PllSource, Sysclk},
|
||||
usart::{BufferedInterruptHandler, BufferedUart, Config},
|
||||
Config as CPUConfig,
|
||||
};
|
||||
use static_cell::StaticCell;
|
||||
use dma_gpio::config::{
|
||||
BAUD, PIPE_HW_RX, PIPE_HW_TX, PIPE_INT_RX, PIPE_INT_TX, PIPE_SW_RX,
|
||||
PIPE_SW_TX, RX_OVERSAMPLE, RX_RING_BYTES, TX_OVERSAMPLE, TX_RING_BYTES,
|
||||
UART_CFG,
|
||||
};
|
||||
use dma_gpio::hw_uart_pc::{driver::uart_task, usart1};
|
||||
use dma_gpio::hw_uart_internal::{
|
||||
driver::uart_task as uart_task_internal,
|
||||
usart2,
|
||||
};
|
||||
use dma_gpio::software_uart::{
|
||||
debug::dump_tim6_regs,
|
||||
decode_uart_samples,
|
||||
dma_timer::{init_tim6_for_uart, init_tim7_for_uart},
|
||||
gpio_dma_uart_rx::rx_dma_task,
|
||||
gpio_dma_uart_tx::tx_dma_task,
|
||||
};
|
||||
use {defmt_rtt as _, panic_probe as _};
|
||||
|
||||
static PD6_BITS: Channel<CriticalSectionRawMutex, u8, 16384> = Channel::new();
|
||||
|
||||
bind_interrupts!(struct Irqs {
|
||||
USART1 => BufferedInterruptHandler<peripherals::USART1>;
|
||||
});
|
||||
bind_interrupts!(struct Irqs2 {
|
||||
USART2 => BufferedInterruptHandler<peripherals::USART2>;
|
||||
});
|
||||
|
||||
// Software uart
|
||||
pub const TIM6_UP_REQ: Request = 4;
|
||||
static SW_TX_RING: StaticCell<[u32; TX_RING_BYTES]> = StaticCell::new();
|
||||
static SW_RX_RING: StaticCell<[u8; RX_RING_BYTES]> = StaticCell::new();
|
||||
static mut RX_PIN: Option<Input<'static>> = None;
|
||||
|
||||
#[embassy_executor::main]
|
||||
async fn main(spawner: Spawner) {
|
||||
info!("boot");
|
||||
let mut config = CPUConfig::default();
|
||||
config.rcc.hsi = true;
|
||||
config.rcc.sys = Sysclk::PLL1_R;
|
||||
config.rcc.pll1 = Some(Pll {
|
||||
source: PllSource::HSI,
|
||||
// 16 MHz / 1 × 20 / 2 = 160 MHz
|
||||
prediv: PllPreDiv::DIV1,
|
||||
mul: PllMul::MUL20,
|
||||
divp: None,
|
||||
divq: None,
|
||||
divr: Some(PllDiv::DIV2),
|
||||
});
|
||||
config.enable_independent_io_supply = true;
|
||||
config.enable_independent_analog_supply = true;
|
||||
|
||||
let p = embassy_stm32::init(config);
|
||||
let f_tim7 = rcc::frequency::<embassy_stm32::peripherals::TIM7>().0;
|
||||
info!("TIM7 clock after PLL config = {} Hz", f_tim7);
|
||||
let f_tim6 = rcc::frequency::<embassy_stm32::peripherals::TIM6>().0;
|
||||
info!("TIM6 clock after PLL config = {} Hz", f_tim6);
|
||||
|
||||
// HARDWARE UART to the PC
|
||||
let mut cfg = Config::default();
|
||||
cfg.baudrate = BAUD;
|
||||
static TX_BUF: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
static RX_BUF: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
let uart = BufferedUart::new(
|
||||
p.USART1,
|
||||
p.PA10, // RX pin
|
||||
p.PA9, // TX pin
|
||||
TX_BUF.init([0; 256]),
|
||||
RX_BUF.init([0; 256]),
|
||||
Irqs,
|
||||
cfg,
|
||||
).unwrap();
|
||||
let yield_period = usart1::setup_and_spawn(BAUD);
|
||||
spawner.spawn(uart_task(uart, &PIPE_HW_TX, &PIPE_HW_RX).unwrap());
|
||||
// END OF HARDWARE UART to the PC
|
||||
|
||||
// INTERNAL HARDWARE UART (USART2)
|
||||
let mut cfg2 = Config::default();
|
||||
cfg2.baudrate = BAUD;
|
||||
static TX_BUF2: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
static RX_BUF2: StaticCell<[u8; 256]> = StaticCell::new();
|
||||
|
||||
let uart2 = BufferedUart::new(
|
||||
p.USART2,
|
||||
p.PA3, // RX
|
||||
p.PA2, // TX
|
||||
TX_BUF2.init([0; 256]),
|
||||
RX_BUF2.init([0; 256]),
|
||||
Irqs2,
|
||||
cfg2,
|
||||
).unwrap();
|
||||
let yield_period2 = usart2::setup_and_spawn(BAUD);
|
||||
spawner.spawn(uart_task_internal(uart2, &PIPE_INT_TX, &PIPE_INT_RX).unwrap());
|
||||
info!("USART2 ready");
|
||||
// END OF INTERNAL HARDWARE UART (USART2)
|
||||
|
||||
// USART1 <-> USART2 bridge
|
||||
spawner.spawn(bridge_usart1_rx_to_usart2_tx(&PIPE_HW_RX, &PIPE_INT_TX).unwrap());
|
||||
spawner.spawn(bridge_usart2_rx_to_usart1_tx(&PIPE_INT_RX, &PIPE_HW_TX).unwrap());
|
||||
info!("USART1 <-> USART2 bridge active");
|
||||
// END OF USART1 <-> USART2 bridge
|
||||
|
||||
// SOFTWARE UART
|
||||
let rx_pin = Input::new(p.PD6, Pull::Up);
|
||||
unsafe { RX_PIN = Some(rx_pin) };
|
||||
|
||||
let mut tx_pin = Output::new(p.PB0, Level::High, Speed::VeryHigh);
|
||||
init_tim6_for_uart(p.TIM6, BAUD, TX_OVERSAMPLE);
|
||||
init_tim7_for_uart(p.TIM7, BAUD, RX_OVERSAMPLE);
|
||||
dump_tim6_regs();
|
||||
|
||||
let bsrr_ptr = embassy_stm32::pac::GPIOB.bsrr().as_ptr() as *mut u32; // POZOR B REGISTER
|
||||
spawner.spawn(tx_dma_task(p.GPDMA1_CH0, bsrr_ptr, SW_TX_RING.init([0; TX_RING_BYTES]), &PIPE_SW_TX).unwrap());
|
||||
// EDN OF SOFTWARE UART
|
||||
|
||||
|
||||
let rx_ring = SW_RX_RING.init([0u8; RX_RING_BYTES]);
|
||||
let gpio_idr = embassy_stm32::pac::GPIOD.idr().as_ptr() as *mut u8;
|
||||
spawner.spawn(rx_dma_task(p.GPDMA1_CH1, gpio_idr, rx_ring, &PIPE_SW_RX).unwrap());
|
||||
info!("SW UART RX DMA started");
|
||||
|
||||
let mut buf = [0u8; 64];
|
||||
loop {
|
||||
let n = PIPE_SW_RX.read(&mut buf).await;
|
||||
if n > 0 {
|
||||
let _ = PIPE_SW_TX.write(&buf[..n]).await;
|
||||
// info!("SW UART decoded: {:a}", &buf[..n]);
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn bridge_usart1_rx_to_usart2_tx(
|
||||
usart1_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
usart2_tx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut buf = [0u8; 64];
|
||||
loop {
|
||||
let n = usart1_rx.read(&mut buf).await;
|
||||
if n > 0 {
|
||||
let _ = usart2_tx.write(&buf[..n]).await;
|
||||
// info!("bridge USART1 - USART2 sent:{} bytes: {}", n, &buf[..n]);
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn bridge_usart2_rx_to_usart1_tx(
|
||||
usart2_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
usart1_tx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
let mut buf = [0u8; 64];
|
||||
loop {
|
||||
let n = usart2_rx.read(&mut buf).await;
|
||||
if n > 0 {
|
||||
let _ = usart1_tx.write(&buf[..n]).await;
|
||||
// info!("bridge: USART2 -> USART1 sent {} bytes", n);
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,35 +0,0 @@
|
||||
// src/config.rs
|
||||
use crate::software_uart::uart_emulation::{Parity, StopBits, UartConfig};
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
|
||||
pub const BAUD: u32 = 9_600;
|
||||
// pub const TX_PIN_BIT: u8 = 2; // PA2
|
||||
// pub const RX_PIN_BIT: u8 = 3; // PA3
|
||||
pub const TX_PIN_BIT: u8 = 0; // PB2
|
||||
pub const RX_PIN_BIT: u8 = 6; // PC3
|
||||
pub const TX_OVERSAMPLE: u16 = 1;
|
||||
pub const RX_OVERSAMPLE: u16 = 13;
|
||||
|
||||
pub const RX_RING_BYTES: usize = 32768;
|
||||
pub const TX_RING_BYTES: usize = 4096;
|
||||
|
||||
pub const PIPE_HW_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_HW_RX_SIZE: usize = 1024;
|
||||
pub const PIPE_SW_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_SW_RX_SIZE: usize = 4096;
|
||||
pub const PIPE_INT_TX_SIZE: usize = 1024;
|
||||
pub const PIPE_INT_RX_SIZE: usize = 1024;
|
||||
|
||||
pub static PIPE_HW_TX: Pipe<CriticalSectionRawMutex, PIPE_HW_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_HW_RX: Pipe<CriticalSectionRawMutex, PIPE_HW_RX_SIZE> = Pipe::new();
|
||||
pub static PIPE_SW_TX: Pipe<CriticalSectionRawMutex, PIPE_SW_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_SW_RX: Pipe<CriticalSectionRawMutex, PIPE_SW_RX_SIZE> = Pipe::new();
|
||||
pub static PIPE_INT_TX: Pipe<CriticalSectionRawMutex, PIPE_INT_TX_SIZE> = Pipe::new();
|
||||
pub static PIPE_INT_RX: Pipe<CriticalSectionRawMutex, PIPE_INT_RX_SIZE> = Pipe::new();
|
||||
|
||||
pub const UART_CFG: UartConfig = UartConfig {
|
||||
data_bits: 8,
|
||||
parity: Parity::None,
|
||||
stop_bits: StopBits::One,
|
||||
};
|
||||
@@ -1,41 +0,0 @@
|
||||
// src/hw_uart_internal/driver.rs
|
||||
use defmt::unwrap;
|
||||
use embassy_futures::select::{select, Either};
|
||||
use embassy_stm32::usart::BufferedUart;
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use embedded_io_async::{Read, Write};
|
||||
use crate::hw_uart_pc::safety::{RX_PIPE_CAP, TX_PIPE_CAP};
|
||||
use embassy_futures::yield_now;
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn uart_task(
|
||||
mut uart: BufferedUart<'static>,
|
||||
tx_pipe: &'static Pipe<CriticalSectionRawMutex, TX_PIPE_CAP>,
|
||||
rx_pipe: &'static Pipe<CriticalSectionRawMutex, RX_PIPE_CAP>,
|
||||
) {
|
||||
let mut rx_byte = [0u8; 1];
|
||||
let mut tx_buf = [0u8; 64];
|
||||
|
||||
loop {
|
||||
let rx_fut = uart.read(&mut rx_byte);
|
||||
let tx_fut = async {
|
||||
let n = tx_pipe.read(&mut tx_buf).await;
|
||||
n
|
||||
};
|
||||
|
||||
match select(rx_fut, tx_fut).await {
|
||||
// Incoming data from UART hardware
|
||||
Either::First(res) => {
|
||||
if let Ok(_) = res {
|
||||
let _ = rx_pipe.write(&rx_byte).await;
|
||||
}
|
||||
}
|
||||
// Outgoing data waiting in TX pipe
|
||||
Either::Second(n) => {
|
||||
unwrap!(uart.write(&tx_buf[..n]).await);
|
||||
}
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,4 +0,0 @@
|
||||
// src/hw_uart_internal/mod.rs
|
||||
|
||||
pub mod driver;
|
||||
pub mod usart2;
|
||||
@@ -1,11 +0,0 @@
|
||||
// src/hw_uart_internal/usart2.rs
|
||||
use defmt::info;
|
||||
use embassy_time::Duration;
|
||||
|
||||
use crate::hw_uart_pc::safety::preflight_and_suggest_yield_period;
|
||||
|
||||
pub fn setup_and_spawn(baudrate: u32) -> Duration {
|
||||
let yield_period = preflight_and_suggest_yield_period(baudrate);
|
||||
info!("HW USART2 safe");
|
||||
yield_period
|
||||
}
|
||||
@@ -1,41 +0,0 @@
|
||||
// src/hw_uart_pc/driver.rs
|
||||
use defmt::unwrap;
|
||||
use embassy_futures::select::{select, Either};
|
||||
use embassy_stm32::usart::BufferedUart;
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use embedded_io_async::{Read, Write};
|
||||
use crate::hw_uart_pc::safety::{RX_PIPE_CAP, TX_PIPE_CAP};
|
||||
use embassy_futures::yield_now;
|
||||
|
||||
#[embassy_executor::task]
|
||||
pub async fn uart_task(
|
||||
mut uart: BufferedUart<'static>,
|
||||
tx_pipe: &'static Pipe<CriticalSectionRawMutex, TX_PIPE_CAP>,
|
||||
rx_pipe: &'static Pipe<CriticalSectionRawMutex, RX_PIPE_CAP>,
|
||||
) {
|
||||
let mut rx_byte = [0u8; 1];
|
||||
let mut tx_buf = [0u8; 64];
|
||||
|
||||
loop {
|
||||
let rx_fut = uart.read(&mut rx_byte);
|
||||
let tx_fut = async {
|
||||
let n = tx_pipe.read(&mut tx_buf).await;
|
||||
n
|
||||
};
|
||||
|
||||
match select(rx_fut, tx_fut).await {
|
||||
// Incoming data from UART hardware
|
||||
Either::First(res) => {
|
||||
if let Ok(_) = res {
|
||||
let _ = rx_pipe.write(&rx_byte).await;
|
||||
}
|
||||
}
|
||||
// Outgoing data waiting in TX pipe
|
||||
Either::Second(n) => {
|
||||
unwrap!(uart.write(&tx_buf[..n]).await);
|
||||
}
|
||||
}
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,4 +0,0 @@
|
||||
// src/hw_uart_pc/mod.rs
|
||||
pub mod driver;
|
||||
pub mod usart1;
|
||||
pub mod safety;
|
||||
@@ -1,57 +0,0 @@
|
||||
// src/safety.rs
|
||||
use defmt::info;
|
||||
use embassy_time::Duration;
|
||||
|
||||
// ISR RX ring capacity = RX_BUF len
|
||||
const ISR_RX_BUF_CAP: usize = 256;
|
||||
// Yield 1/2 the time it takes to fill ISR RX ring.
|
||||
const YIELD_MARGIN_NUM: u32 = 1;
|
||||
const YIELD_MARGIN_DEN: u32 = 2;
|
||||
// Ensure RX_PIPE_CAP can hold this.
|
||||
const WORST_MAIN_LATENCY_MS: u32 = 20;
|
||||
|
||||
pub const TX_PIPE_CAP: usize = 1024;
|
||||
pub const RX_PIPE_CAP: usize = 1024;
|
||||
|
||||
|
||||
|
||||
/// Perform safety checks and compute yield timing to avoid buffer overflow.
|
||||
///
|
||||
/// # Panics
|
||||
/// Panics if pipe capacities are too small for the configured baud.
|
||||
pub fn preflight_and_suggest_yield_period(baud: u32) -> Duration {
|
||||
// Approx bytes per second for 8N1 (10 bits per byte on the wire)
|
||||
let bytes_per_sec = (baud / 10).max(1);
|
||||
|
||||
// Time until ISR RX ring fills, in microseconds.
|
||||
let t_fill_us = (ISR_RX_BUF_CAP as u64) * 1_000_000u64 / (bytes_per_sec as u64);
|
||||
|
||||
// Choose a yield period as a fraction of t_fill.
|
||||
let yield_us = (t_fill_us as u64)
|
||||
.saturating_mul(YIELD_MARGIN_NUM as u64)
|
||||
/ (YIELD_MARGIN_DEN as u64);
|
||||
|
||||
// Verify RX pipe can absorb a worst-case app latency so uart_task
|
||||
// can always forward without dropping when it runs.
|
||||
let required_rx_pipe = (bytes_per_sec as u64) * (WORST_MAIN_LATENCY_MS as u64) / 1000;
|
||||
|
||||
if (RX_PIPE_CAP as u64) < required_rx_pipe {
|
||||
core::panic!(
|
||||
"RX pipe too small: have {}B, need >= {}B for {}ms at {} bps",
|
||||
RX_PIPE_CAP, required_rx_pipe, WORST_MAIN_LATENCY_MS, baud
|
||||
);
|
||||
}
|
||||
|
||||
info!(
|
||||
"Preflight: baud={}, rx_isr={}B, rx_pipe={}B, bytes/s={}, t_fill_us={}, yield_us={}",
|
||||
baud,
|
||||
ISR_RX_BUF_CAP,
|
||||
RX_PIPE_CAP,
|
||||
bytes_per_sec,
|
||||
t_fill_us,
|
||||
yield_us
|
||||
);
|
||||
|
||||
// Never choose zero.
|
||||
Duration::from_micros(yield_us.max(1) as u64)
|
||||
}
|
||||
@@ -1,12 +0,0 @@
|
||||
// src/uart/usart1.rs
|
||||
use defmt::info;
|
||||
use embassy_time::Duration;
|
||||
|
||||
use crate::hw_uart_pc::safety::preflight_and_suggest_yield_period;
|
||||
|
||||
pub fn setup_and_spawn(baudrate: u32,) -> Duration {
|
||||
let yield_period: Duration = preflight_and_suggest_yield_period(baudrate);
|
||||
info!("HW USART1 safe");
|
||||
|
||||
yield_period
|
||||
}
|
||||
@@ -1,6 +0,0 @@
|
||||
#![no_std]
|
||||
|
||||
pub mod software_uart;
|
||||
pub mod config;
|
||||
pub mod hw_uart_pc;
|
||||
pub mod hw_uart_internal;
|
||||
@@ -1,43 +0,0 @@
|
||||
// src/software_uart/debug.rs
|
||||
use defmt::info;
|
||||
|
||||
pub fn dump_tim6_regs() {
|
||||
use embassy_stm32::pac::timer::TimBasic;
|
||||
let tim = unsafe { TimBasic::from_ptr(0x4000_1000usize as _) };
|
||||
let sr = tim.sr().read();
|
||||
let dier = tim.dier().read();
|
||||
let cr1 = tim.cr1().read();
|
||||
let arr = tim.arr().read().arr();
|
||||
let psc = tim.psc().read();
|
||||
info!(
|
||||
"TIM6: CR1.CEN={} DIER.UDE={} SR.UIF={} PSC={} ARR={}",
|
||||
cr1.cen(),
|
||||
dier.ude(),
|
||||
sr.uif(),
|
||||
psc,
|
||||
arr
|
||||
);
|
||||
}
|
||||
|
||||
pub fn dump_dma_ch0_regs() {
|
||||
use embassy_stm32::pac::gpdma::Gpdma;
|
||||
let dma = unsafe { Gpdma::from_ptr(0x4002_0000usize as _) };
|
||||
let ch = dma.ch(0);
|
||||
let cr = ch.cr().read();
|
||||
let tr1 = ch.tr1().read();
|
||||
let tr2 = ch.tr2().read();
|
||||
let br1 = ch.br1().read();
|
||||
info!(
|
||||
"GPDMA1_CH0: EN={} PRIO={} SDW={} DDW={} SINC={} DINC={} REQSEL={} SWREQ={} DREQ={} BNDT={}",
|
||||
cr.en(),
|
||||
cr.prio(),
|
||||
tr1.sdw(),
|
||||
tr1.ddw(),
|
||||
tr1.sinc(),
|
||||
tr1.dinc(),
|
||||
tr2.reqsel(),
|
||||
tr2.swreq(),
|
||||
tr2.dreq(),
|
||||
br1.bndt()
|
||||
);
|
||||
}
|
||||
@@ -1,67 +0,0 @@
|
||||
// src/dma_timer.rs
|
||||
|
||||
use embassy_stm32::{
|
||||
peripherals::{TIM6, TIM7},
|
||||
rcc,
|
||||
timer::low_level::Timer,
|
||||
Peri,
|
||||
};
|
||||
use core::mem;
|
||||
use embassy_stm32::timer::BasicInstance;
|
||||
use embassy_stm32::pac::timer::vals::Urs;
|
||||
|
||||
/// Initializes TIM6 to tick at `baud * oversample` frequency.
|
||||
/// Each TIM6 update event triggers one DMA beat.
|
||||
pub fn init_tim6_for_uart<'d>(tim6: Peri<'d, TIM6>, baud: u32, oversample: u16) {
|
||||
rcc::enable_and_reset::<TIM6>();
|
||||
let ll = Timer::new(tim6);
|
||||
configure_basic_timer(&ll, baud, oversample);
|
||||
mem::forget(ll);
|
||||
}
|
||||
|
||||
/// Initializes TIM7 to tick at `baud * oversample` frequency.
|
||||
/// Each TIM7 update event triggers one DMA beat.
|
||||
pub fn init_tim7_for_uart<'d>(tim7: Peri<'d, TIM7>, baud: u32, oversample: u16) {
|
||||
rcc::enable_and_reset::<TIM7>();
|
||||
let ll = Timer::new(tim7);
|
||||
configure_basic_timer(&ll, baud, oversample);
|
||||
// Enable Update Interrupt (UIE)
|
||||
ll.regs_basic().dier().modify(|w| {
|
||||
w.set_ude(true);
|
||||
w.set_uie(false);
|
||||
});
|
||||
mem::forget(ll);
|
||||
}
|
||||
|
||||
// Shared internal helper — identical CR1/ARR setup
|
||||
fn configure_basic_timer<T: BasicInstance>(ll: &Timer<'_, T>, baud: u32, oversample: u16) {
|
||||
let f_timer = rcc::frequency::<T>().0;
|
||||
let target = baud.saturating_mul(oversample.max(1) as u32).max(1);
|
||||
|
||||
// Compute ARR (prescaler = 0)
|
||||
// let mut arr = (f_timer / target).saturating_sub(1) as u16;
|
||||
let mut arr = ((f_timer + target / 2) / target).saturating_sub(1) as u16;
|
||||
if arr == 0 { arr = 1; }
|
||||
|
||||
ll.regs_basic().cr1().write(|w| {
|
||||
w.set_cen(false);
|
||||
w.set_opm(false);
|
||||
w.set_udis(false);
|
||||
w.set_urs(Urs::ANY_EVENT);
|
||||
});
|
||||
|
||||
ll.regs_basic().psc().write_value(0u16);
|
||||
ll.regs_basic().arr().write(|w| w.set_arr(arr));
|
||||
ll.regs_basic().dier().modify(|w| w.set_ude(true));
|
||||
ll.regs_basic().egr().write(|w| w.set_ug(true));
|
||||
|
||||
// Clear spurious UIF from UG trigger
|
||||
ll.regs_basic().sr().modify(|w| w.set_uif(false));
|
||||
|
||||
ll.regs_basic().cr1().write(|w| {
|
||||
w.set_opm(false);
|
||||
w.set_cen(true);
|
||||
w.set_udis(false);
|
||||
w.set_urs(Urs::ANY_EVENT);
|
||||
});
|
||||
}
|
||||
@@ -1,94 +0,0 @@
|
||||
// src/software_uart/runtime.rs
|
||||
use embassy_executor::task;
|
||||
use embassy_stm32::{
|
||||
dma::Request,
|
||||
peripherals::GPDMA1_CH1,
|
||||
Peri,
|
||||
};
|
||||
use crate::config::RX_PIN_BIT;
|
||||
use embassy_stm32::dma::{
|
||||
ReadableRingBuffer,
|
||||
TransferOptions,
|
||||
};
|
||||
use crate::config::{RX_OVERSAMPLE, UART_CFG};
|
||||
use crate::software_uart::decode_uart_samples;
|
||||
use embassy_sync::{blocking_mutex::raw::CriticalSectionRawMutex, pipe::Pipe};
|
||||
use embassy_futures::yield_now;
|
||||
use defmt::info;
|
||||
|
||||
// datasheet tabulka 137
|
||||
pub const TIM7_UP_REQ: Request = 5;
|
||||
|
||||
/// RX DMA task: reads GPIO samples paced by TIM7 and fills PIPE_RX
|
||||
#[task]
|
||||
pub async fn rx_dma_task(
|
||||
ch: Peri<'static, GPDMA1_CH1>,
|
||||
register: *mut u8,
|
||||
ring: &'static mut [u8],
|
||||
pipe_rx: &'static Pipe<CriticalSectionRawMutex, 4096>,
|
||||
) {
|
||||
let mut opts = TransferOptions::default();
|
||||
opts.half_transfer_ir = true;
|
||||
opts.complete_transfer_ir = true;
|
||||
|
||||
// SAFETY: ring is exclusive to this task
|
||||
let mut rx = unsafe { ReadableRingBuffer::new(ch, TIM7_UP_REQ, register, ring, opts) };
|
||||
rx.start();
|
||||
|
||||
// We read into the second half of a buffer, keeping "leftovers" in the first half.
|
||||
const CHUNK_SIZE: usize = 4096;
|
||||
const HISTORY_SIZE: usize = 512;
|
||||
const TOTAL_BUF_SIZE: usize = HISTORY_SIZE + CHUNK_SIZE;
|
||||
|
||||
// Logic level buffer
|
||||
let mut level_buf = [0u8; TOTAL_BUF_SIZE];
|
||||
let mut valid_len = 0usize;
|
||||
|
||||
let mut raw_chunk = [0u8; CHUNK_SIZE];
|
||||
|
||||
loop {
|
||||
let _ = rx.read_exact(&mut raw_chunk).await;
|
||||
|
||||
for (i, b) in raw_chunk.iter().enumerate() {
|
||||
level_buf[valid_len + i] = ((*b >> RX_PIN_BIT) & 1) as u8;
|
||||
}
|
||||
let current_end = valid_len + CHUNK_SIZE;
|
||||
|
||||
let (decoded, consumed) = decode_uart_samples(
|
||||
&level_buf[..current_end],
|
||||
RX_OVERSAMPLE,
|
||||
&UART_CFG
|
||||
);
|
||||
|
||||
if !decoded.is_empty() {
|
||||
pipe_rx.write(decoded.as_slice()).await;
|
||||
|
||||
for byte in decoded.as_slice() {
|
||||
// info!("DMA BUFFER CHAR: {} (ASCII: {})", *byte, *byte as char);
|
||||
}
|
||||
}
|
||||
|
||||
// Shift remaining data to front
|
||||
// We processed 'consumed' samples.
|
||||
// We keep everything from 'consumed' up to 'current_end'.
|
||||
let remaining = current_end - consumed;
|
||||
|
||||
// SAFETY if remaining > HISTORY_SIZE, we are in trouble (buffer too small / decoder stuck).
|
||||
if remaining > 0 {
|
||||
level_buf.copy_within(consumed..current_end, 0);
|
||||
}
|
||||
valid_len = remaining;
|
||||
|
||||
// If valid_len grows too large (decoder not consuming), we must discard to avoid panic on next write
|
||||
if valid_len >= HISTORY_SIZE {
|
||||
// Discard oldest to make space
|
||||
// logic: we move the last (HISTORY_SIZE/2) to 0.
|
||||
// This effectively "skips" garbage data.
|
||||
let keep = HISTORY_SIZE / 2;
|
||||
level_buf.copy_within(valid_len - keep..valid_len, 0);
|
||||
valid_len = keep;
|
||||
}
|
||||
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,90 +0,0 @@
|
||||
// src/software_uart/gpio_dma_uart_tx.rs
|
||||
use embassy_executor::task;
|
||||
use embassy_stm32::{
|
||||
dma::{Request, Transfer, TransferOptions},
|
||||
peripherals::GPDMA1_CH0,
|
||||
Peri,
|
||||
};
|
||||
use embassy_futures::yield_now;
|
||||
use defmt::info;
|
||||
|
||||
use embassy_sync::pipe::Pipe;
|
||||
use crate::config::{TX_PIN_BIT, UART_CFG};
|
||||
use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
|
||||
use crate::software_uart::uart_emulation::encode_uart_byte_cfg;
|
||||
|
||||
pub const TIM6_UP_REQ: Request = 4;
|
||||
|
||||
pub async fn encode_uart_frames<'a>(
|
||||
pin_bit: u8,
|
||||
bytes: &[u8],
|
||||
out_buf: &'a mut [u32],
|
||||
) -> usize {
|
||||
let mut offset = 0;
|
||||
for &b in bytes {
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(pin_bit, b, &UART_CFG, &mut frame);
|
||||
|
||||
if offset + used <= out_buf.len() {
|
||||
out_buf[offset..offset + used].copy_from_slice(&frame[..used]);
|
||||
offset += used;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
|
||||
yield_now().await;
|
||||
}
|
||||
offset
|
||||
}
|
||||
|
||||
#[task]
|
||||
pub async fn tx_dma_task(
|
||||
mut ch: Peri<'static, GPDMA1_CH0>,
|
||||
register: *mut u32, // GPIOx_BSRR
|
||||
_tx_ring_mem: &'static mut [u32],
|
||||
pipe_rx: &'static Pipe<CriticalSectionRawMutex, 1024>,
|
||||
) {
|
||||
info!("TX DMA task ready (One‑shot)");
|
||||
|
||||
let mut frame_buf = [0u32; 4096];
|
||||
let mut rx_buf = [0u8; 256];
|
||||
let tim6 = embassy_stm32::pac::TIM6;
|
||||
|
||||
loop {
|
||||
let n = pipe_rx.read(&mut rx_buf).await;
|
||||
if n == 0 {
|
||||
yield_now().await;
|
||||
continue;
|
||||
}
|
||||
|
||||
let used = encode_uart_frames(TX_PIN_BIT, &rx_buf[..n], &mut frame_buf).await;
|
||||
if used > 0 {
|
||||
// Clear pending UIF
|
||||
tim6.sr().write(|w| w.set_uif(false));
|
||||
// Wait for the next UIF (next bit tick)
|
||||
while !tim6.sr().read().uif() {
|
||||
yield_now().await;
|
||||
}
|
||||
// Clear UIF so first DMA beat happens on the FOLLOWING tick
|
||||
tim6.sr().write(|w| w.set_uif(false));
|
||||
|
||||
let mut tx_opts = TransferOptions::default();
|
||||
tx_opts.half_transfer_ir = false;
|
||||
tx_opts.complete_transfer_ir = true;
|
||||
|
||||
unsafe {
|
||||
let transfer = Transfer::new_write(
|
||||
ch.reborrow(),
|
||||
TIM6_UP_REQ,
|
||||
&frame_buf[..used],
|
||||
register,
|
||||
tx_opts,
|
||||
);
|
||||
transfer.await;
|
||||
}
|
||||
}
|
||||
|
||||
// info!("tx_dma_task sent {} words", used);
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
@@ -1,13 +0,0 @@
|
||||
// src/software_uart/mod.rs
|
||||
|
||||
pub mod gpio_dma_uart_tx;
|
||||
pub mod gpio_dma_uart_rx;
|
||||
pub mod dma_timer;
|
||||
pub mod uart_emulation;
|
||||
pub mod debug;
|
||||
|
||||
pub use gpio_dma_uart_tx::*;
|
||||
pub use gpio_dma_uart_rx::*;
|
||||
pub use dma_timer::*;
|
||||
pub use uart_emulation::*;
|
||||
pub use debug::*;
|
||||
@@ -1,204 +0,0 @@
|
||||
// src/software_uart/uart_emulation.rs
|
||||
use heapless::Vec;
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub enum Parity {
|
||||
None,
|
||||
Even,
|
||||
Odd,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
|
||||
pub enum StopBits {
|
||||
One,
|
||||
Two,
|
||||
}
|
||||
|
||||
#[derive(Clone, Copy, Debug)]
|
||||
pub struct UartConfig {
|
||||
pub data_bits: u8,
|
||||
pub parity: Parity,
|
||||
pub stop_bits: StopBits,
|
||||
}
|
||||
|
||||
impl Default for UartConfig {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
data_bits: 8,
|
||||
parity: Parity::None,
|
||||
stop_bits: StopBits::One,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Encodes one byte into a sequence of GPIO BSRR words
|
||||
pub fn encode_uart_byte_cfg(
|
||||
pin_bit: u8,
|
||||
data: u8,
|
||||
cfg: &UartConfig,
|
||||
out: &mut [u32; 12],
|
||||
) -> usize {
|
||||
// GPIOx_BSRR register str. 636 kap. 13.4.7
|
||||
let set_high = |bit: u8| -> u32 { 1u32 << bit };
|
||||
// let set_low = |bit: u8| -> u32 { 0 }; // ODR
|
||||
let set_low = |bit: u8| -> u32 { 1u32 << (bit as u32 + 16) }; // BSRR
|
||||
|
||||
let mut idx = 0usize;
|
||||
|
||||
// START bit (LOW)
|
||||
out[idx] = set_low(pin_bit);
|
||||
idx += 1;
|
||||
|
||||
// Data bits, LSB-first
|
||||
let nbits = cfg.data_bits.clamp(5, 8);
|
||||
for i in 0..nbits {
|
||||
let one = ((data >> i) & 1) != 0;
|
||||
out[idx] = if one { set_high(pin_bit) } else { set_low(pin_bit) };
|
||||
idx += 1;
|
||||
}
|
||||
|
||||
// Parity
|
||||
match cfg.parity {
|
||||
Parity::None => {}
|
||||
Parity::Even | Parity::Odd => {
|
||||
let mask: u8 = if nbits == 8 { 0xFF } else { (1u16 << nbits) as u8 - 1 };
|
||||
let ones = (data & mask).count_ones() & 1;
|
||||
let par_bit_is_one = match cfg.parity {
|
||||
Parity::Even => ones == 1,
|
||||
Parity::Odd => ones == 0,
|
||||
_ => false,
|
||||
};
|
||||
out[idx] = if par_bit_is_one {
|
||||
set_high(pin_bit)
|
||||
} else {
|
||||
set_low(pin_bit)
|
||||
};
|
||||
idx += 1;
|
||||
}
|
||||
}
|
||||
|
||||
// STOP bits (HIGH)
|
||||
let stop_ticks = match cfg.stop_bits {
|
||||
StopBits::One => 1usize,
|
||||
StopBits::Two => 2usize,
|
||||
};
|
||||
for _ in 0..stop_ticks {
|
||||
out[idx] = set_high(pin_bit);
|
||||
idx += 1;
|
||||
}
|
||||
|
||||
idx
|
||||
}
|
||||
|
||||
/// Decode an oversampled stream of logic levels into UART bytes.
|
||||
/// Returns (decoded bytes, number of samples consumed/processed).
|
||||
pub fn decode_uart_samples(
|
||||
samples: &[u8],
|
||||
oversample: u16,
|
||||
cfg: &UartConfig,
|
||||
) -> (heapless::Vec<u8, 256>, usize) {
|
||||
let mut out = Vec::<u8, 256>::new();
|
||||
let mut idx = 0usize;
|
||||
let nbits = cfg.data_bits as usize;
|
||||
let ovs = oversample as usize;
|
||||
|
||||
// Calculate total frame width in samples to ensure we have enough data
|
||||
// 1 start + n data + parity? + stops
|
||||
let parity_bits = match cfg.parity {
|
||||
Parity::None => 0,
|
||||
_ => 1,
|
||||
};
|
||||
let stop_bits_count = match cfg.stop_bits {
|
||||
StopBits::One => 1,
|
||||
StopBits::Two => 2,
|
||||
};
|
||||
let frame_bits = 1 + nbits + parity_bits + stop_bits_count;
|
||||
let frame_len = frame_bits * ovs;
|
||||
|
||||
// Majority vote over 3 samples centered at `i`
|
||||
let get_bit = |i: usize| -> u8 {
|
||||
let mut votes = 0;
|
||||
// Check i-1, i, i+1. Saturating sub/add handles boundaries roughly.
|
||||
if i > 0 && samples.get(i - 1).map_or(true, |&x| x != 0) {
|
||||
votes += 1;
|
||||
}
|
||||
if samples.get(i).map_or(true, |&x| x != 0) {
|
||||
votes += 1;
|
||||
}
|
||||
if samples.get(i + 1).map_or(true, |&x| x != 0) {
|
||||
votes += 1;
|
||||
}
|
||||
|
||||
if votes >= 2 {
|
||||
1
|
||||
} else {
|
||||
0
|
||||
}
|
||||
};
|
||||
|
||||
// Loop while we have enough remaining samples for a full frame
|
||||
while idx + frame_len <= samples.len() {
|
||||
// Wait for falling edge (High -> Low)
|
||||
// samples[idx] == 1 (Idle/Stop) && samples[idx+1] == 0 (Start)
|
||||
if samples[idx] != 0 && samples[idx + 1] == 0 {
|
||||
// Align to center of START bit
|
||||
// Start bit begins at idx+1. Center is at idx + 1 + (ovs/2)
|
||||
let center_offset = 1 + (ovs / 2);
|
||||
let mut scan_idx = idx + center_offset;
|
||||
|
||||
// Validate Start Bit
|
||||
if get_bit(scan_idx) != 0 {
|
||||
idx += 1; // False start (noise), move on
|
||||
continue;
|
||||
}
|
||||
|
||||
// Move to center of first data bit
|
||||
scan_idx += ovs;
|
||||
|
||||
// Read Data Bits
|
||||
let mut data: u8 = 0;
|
||||
for bit in 0..nbits {
|
||||
if get_bit(scan_idx) == 1 {
|
||||
data |= 1 << bit;
|
||||
}
|
||||
scan_idx += ovs;
|
||||
}
|
||||
|
||||
// Skip Parity
|
||||
if cfg.parity != Parity::None {
|
||||
scan_idx += ovs;
|
||||
}
|
||||
|
||||
// Validate Stop Bit (Must be 1)
|
||||
// If stop bit is 0, it's a framing error. We reject the whole byte.
|
||||
if get_bit(scan_idx) == 0 {
|
||||
idx += 1; // Next sample
|
||||
continue;
|
||||
}
|
||||
|
||||
// Byte is valid
|
||||
let _ = out.push(data);
|
||||
|
||||
// Active Resync: Fast-forward through the stop bit(s) and idle time
|
||||
// scan_idx is currently at the center of the Stop bit.
|
||||
idx = scan_idx;
|
||||
// Advance while we are reading High (1).
|
||||
// As soon as we see Low (0), we stop. That 0 is the beginning of the NEXT start bit.
|
||||
// The outer loop expects `idx` to be the High *before* the start bit, so we will handle that.
|
||||
while idx < samples.len() && samples[idx] != 0 {
|
||||
idx += 1;
|
||||
}
|
||||
// Back up one step.
|
||||
// The outer loop logic is: `if samples[idx] != 0 && samples[idx+1] == 0`.
|
||||
// If we stopped at `idx` because it was 0, then `idx-1` was the last 1 (Idle).
|
||||
if idx > 0 {
|
||||
idx -= 1;
|
||||
}
|
||||
} else {
|
||||
// No start bit detected here, move to next sample
|
||||
idx += 1;
|
||||
}
|
||||
}
|
||||
|
||||
(out, idx)
|
||||
}
|
||||
@@ -1,41 +0,0 @@
|
||||
#![no_std]
|
||||
#![no_main]
|
||||
|
||||
use dma_gpio as _;
|
||||
use panic_probe as _;
|
||||
use defmt_rtt as _;
|
||||
|
||||
#[defmt_test::tests]
|
||||
mod tests {
|
||||
use defmt::assert_eq;
|
||||
use dma_gpio::software_uart::uart_emulation::{
|
||||
encode_uart_byte_cfg, UartConfig, Parity, StopBits
|
||||
};
|
||||
|
||||
const TX_PIN_BIT: u8 = 2;
|
||||
|
||||
#[test]
|
||||
fn test_encode_8n1() {
|
||||
let cfg = UartConfig::default();
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(TX_PIN_BIT, 0x55, &cfg, &mut frame);
|
||||
|
||||
assert_eq!(used, 10);
|
||||
assert_eq!(frame[0], 1u32 << 18); // Start LOW
|
||||
assert_eq!(frame[9], 1u32 << 2); // Stop HIGH
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_encode_parity() {
|
||||
let cfg = UartConfig {
|
||||
data_bits: 8,
|
||||
parity: Parity::Even,
|
||||
stop_bits: StopBits::One,
|
||||
};
|
||||
|
||||
let mut frame = [0u32; 12];
|
||||
let used = encode_uart_byte_cfg(TX_PIN_BIT, 0x00, &cfg, &mut frame);
|
||||
|
||||
assert_eq!(used, 11);
|
||||
}
|
||||
}
|
||||
@@ -1,2 +0,0 @@
|
||||
[build]
|
||||
target = "thumbv8m.main-none-eabihf"
|
||||
@@ -1 +0,0 @@
|
||||
target/
|
||||
1441
semestralka_1_final_crate/software_uart/Cargo.lock
generated
1441
semestralka_1_final_crate/software_uart/Cargo.lock
generated
File diff suppressed because it is too large
Load Diff
@@ -1,36 +0,0 @@
|
||||
[package]
|
||||
name = "software_uart"
|
||||
version = "1.0.0"
|
||||
edition = "2024"
|
||||
license = "MIT OR Apache-2.0"
|
||||
|
||||
[dependencies]
|
||||
cortex-m = { version = "0.7.7", features = ["inline-asm", "critical-section-single-core"] }
|
||||
cortex-m-rt = "0.7.5"
|
||||
panic-halt = "1.0.0"
|
||||
embassy-executor = { path = "/home/priec/programs/embassy/embassy-executor", features = ["arch-cortex-m", "executor-thread"] }
|
||||
embassy-futures = { path = "/home/priec/programs/embassy/embassy-futures" }
|
||||
embassy-sync = { path = "/home/priec/programs/embassy/embassy-sync" }
|
||||
embassy-time = { path = "/home/priec/programs/embassy/embassy-time", features = ["tick-hz-32_768"] }
|
||||
embassy-hal-internal = { path = "/home/priec/programs/embassy/embassy-hal-internal" }
|
||||
embassy-usb = { path = "/home/priec/programs/embassy/embassy-usb" }
|
||||
embassy-stm32 = { path = "/home/priec/programs/embassy/embassy-stm32", features = ["unstable-pac", "stm32u575zi", "time-driver-tim2", "memory-x", "defmt"] }
|
||||
|
||||
embedded-hal = "1.0.0"
|
||||
embedded-graphics = "0.8.1"
|
||||
heapless = { version = "0.9.1", default-features = false }
|
||||
micromath = "2.1.0"
|
||||
tinybmp = "0.6.0"
|
||||
panic-probe = { version = "1.0.0", features = ["defmt"] }
|
||||
defmt-rtt = "1.1.0"
|
||||
defmt = "1.0.1"
|
||||
static_cell = "2.1.1"
|
||||
embedded-io = "0.6.1"
|
||||
embedded-io-async = "0.6.1"
|
||||
|
||||
[dev-dependencies]
|
||||
defmt-test = "0.4.0"
|
||||
|
||||
[profile.dev]
|
||||
opt-level = 3
|
||||
codegen-units = 1
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 28 KiB |
@@ -1,82 +0,0 @@
|
||||
@startuml
|
||||
title Dekodovanie UART: decode_uart_samples
|
||||
|
||||
start
|
||||
|
||||
:Inicializacia out (Vec<u8, 256>) a idx = 0;
|
||||
|
||||
:nbits = cfg.data_bits;
|
||||
:ovs = oversample;
|
||||
|
||||
:parity_bits = 0 alebo 1 podla cfg.parity;
|
||||
:stop_bits_count = 1 alebo 2 podla cfg.stop_bits;
|
||||
|
||||
:frame_bits = 1 + nbits + parity_bits + stop_bits_count;
|
||||
:frame_len = frame_bits * ovs;
|
||||
|
||||
while (idx + frame_len <= samples.len()?) is (ano)
|
||||
if (Start bit detekovany?\n(samples[idx] != 0 && samples[idx + 1] == 0)) then (ano)
|
||||
:center_offset = ovs / 2;
|
||||
:scan_idx = idx + center_offset;
|
||||
|
||||
if (get_bit(scan_idx) == 0?\nvalidacia START bitu) then (ano)
|
||||
:scan_idx += ovs\n(posun na prvy data bit);
|
||||
:data = 0;
|
||||
|
||||
repeat :Citanie datovych bitov (0..nbits-1, LSB first)
|
||||
if (get_bit(scan_idx) == 1?) then (ano)
|
||||
:data |= 1 << bit;
|
||||
endif
|
||||
:scan_idx += ovs;
|
||||
repeat while (zvysne data bity?) is (ano)
|
||||
->nie;
|
||||
|
||||
:error_data = false;
|
||||
|
||||
if (cfg.parity != Parity::None?) then (ano)
|
||||
:expected_parity = calculate_parity(data, cfg.parity);
|
||||
:actual_parity = get_bit(scan_idx);
|
||||
if (expected_parity != actual_parity?) then (ano)
|
||||
:error_data = true;
|
||||
note right: Chyba parity
|
||||
endif
|
||||
:scan_idx += ovs;
|
||||
endif
|
||||
|
||||
repeat :Kontrola stop bitov
|
||||
if (get_bit(scan_idx) == 0?) then (ano)
|
||||
:error_data = true;
|
||||
note right: Framing chyba (stop bit = 0)
|
||||
break
|
||||
endif
|
||||
:scan_idx += ovs;
|
||||
repeat while (zvysne stop bity?) is (ano)
|
||||
->nie;
|
||||
|
||||
if (error_data?) then (ano)
|
||||
:idx += 1;\n(preskoc chybny frame);
|
||||
else (nie)
|
||||
:push data do out;
|
||||
:idx = scan_idx;
|
||||
|
||||
:Preskoc idle HIGH (hladanie dalsieho start bitu);
|
||||
while (idx < samples.len() && samples[idx] != 0?) is (ano)
|
||||
:idx += 1;
|
||||
endwhile (nie)
|
||||
|
||||
if (idx > 0?) then (ano)
|
||||
:idx -= 1;\n("mensi hack");
|
||||
endif
|
||||
endif
|
||||
else (nie)
|
||||
:idx += 1;\n(falosny start);
|
||||
endif
|
||||
else (nie)
|
||||
:idx += 1;
|
||||
endif
|
||||
endwhile (nie)
|
||||
|
||||
:Navrat (out, idx);
|
||||
|
||||
stop
|
||||
@enduml
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 3.3 KiB |
@@ -1,29 +0,0 @@
|
||||
@startuml
|
||||
scale 5 as 100 pixels
|
||||
|
||||
clock "TIM7" as clk with period 1
|
||||
binary "UART RX" as uart
|
||||
binary "Sample" as smp
|
||||
|
||||
@0
|
||||
uart is low
|
||||
smp is low
|
||||
|
||||
@8
|
||||
smp is high
|
||||
|
||||
@9
|
||||
smp is low
|
||||
|
||||
@16
|
||||
uart is high
|
||||
|
||||
@24
|
||||
smp is high
|
||||
|
||||
@25
|
||||
smp is low
|
||||
|
||||
@32
|
||||
uart is high
|
||||
@enduml
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 3.5 KiB |
@@ -1,24 +0,0 @@
|
||||
@startuml
|
||||
scale 5 as 100 pixels
|
||||
|
||||
clock "TIM6" as clk with period 1
|
||||
binary "GPIO TX" as gpio
|
||||
binary "BSRR write" as bsrr
|
||||
|
||||
@0
|
||||
gpio is low
|
||||
bsrr is high
|
||||
|
||||
@1
|
||||
bsrr is low
|
||||
|
||||
@16
|
||||
gpio is high
|
||||
bsrr is high
|
||||
|
||||
@17
|
||||
bsrr is low
|
||||
|
||||
@32
|
||||
gpio is high
|
||||
@enduml
|
||||
Binary file not shown.
|
Before Width: | Height: | Size: 20 KiB |
@@ -1,31 +0,0 @@
|
||||
@startuml
|
||||
title Enkodovanie UART: encode_uart_byte_cfg
|
||||
|
||||
start
|
||||
|
||||
:set_high = 1 << pin_bit;
|
||||
:set_low = 1 << (pin_bit + 16);
|
||||
:nbits = cfg.data_bits, idx = 0;
|
||||
|
||||
:START bit (LOW)\nout[idx++] = set_low;
|
||||
|
||||
repeat :Data bity (LSB first)
|
||||
:out[idx++] = ((data >> i) & 1) ?\nset_high : set_low;
|
||||
repeat while (i < nbits?) is (ano)
|
||||
->nie;
|
||||
|
||||
if (cfg.parity != None?) then (ano)
|
||||
:ones = data.count_ones() & 1;
|
||||
:par_bit = (Even) ? ones==1 : ones==0;
|
||||
:out[idx++] = par_bit ? set_high : set_low;
|
||||
endif
|
||||
|
||||
repeat :STOP bity (HIGH)
|
||||
:out[idx++] = set_high;
|
||||
repeat while (zvysne stop bity?) is (ano)
|
||||
->nie;
|
||||
|
||||
:Return idx;
|
||||
|
||||
stop
|
||||
@enduml
|
||||
@@ -1,18 +0,0 @@
|
||||
{
|
||||
description = "PlantUML dev shell";
|
||||
|
||||
inputs.nixpkgs.url = "github:NixOS/nixpkgs";
|
||||
|
||||
outputs = { self, nixpkgs }:
|
||||
let
|
||||
system = "x86_64-linux";
|
||||
pkgs = nixpkgs.legacyPackages.${system};
|
||||
in {
|
||||
devShells.${system}.default = pkgs.mkShell {
|
||||
buildInputs = [
|
||||
pkgs.plantuml
|
||||
pkgs.graphviz
|
||||
];
|
||||
};
|
||||
};
|
||||
}
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user