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sampling only in the middle

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Priec
2025-11-23 22:16:36 +01:00
parent 9451bc5ae9
commit 804dc66a4b
1 changed files with 2 additions and 18 deletions
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20
semestralka_1_final_crate/software_uart/src/uart_emulation.rs
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@@ -116,25 +116,9 @@ pub fn decode_uart_samples(
let frame_bits = 1 + nbits + parity_bits + stop_bits_count; let frame_bits = 1 + nbits + parity_bits + stop_bits_count;
let frame_len = frame_bits * ovs; let frame_len = frame_bits * ovs;
// Majority vote over 3 samples centered at `i` // Get sample in the middle of the bit
let get_bit = |i: usize| -> u8 { let get_bit = |i: usize| -> u8 {
let mut votes = 0; if samples[i] != 0 { 1 } else { 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
}
}; };
// Decode while remaining samples for a full frame // Decode while remaining samples for a full frame