61 lines
1.1 KiB
C++
61 lines
1.1 KiB
C++
// main.cpp
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#include "mbed.h"
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#define MAXIMUM_BUFFER_SIZE 32
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DigitalOut led1(LED1);
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DigitalOut led2(LED2);
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DigitalOut led3(LED3);
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DigitalIn button(PC_13);
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static BufferedSerial serial_port(USBTX, USBRX);
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int another_press(int press_num) {
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press_num += 1;
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if (press_num >= 8) {
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press_num = 0;
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};
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return press_num;
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}
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void set_led(int number) {
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led1 = (number & 1) ? 1 : 0;
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led2 = (number & 2) ? 1 : 0;
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led3 = (number & 4) ? 1 : 0;
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}
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int main()
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{
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serial_port.set_baud(9600);
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serial_port.set_format(
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/* bits */ 8,
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/* parity */ BufferedSerial::None,
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/* stop bit */ 1
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);
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char buf[MAXIMUM_BUFFER_SIZE] = {0};
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int num_presses = 0;
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while (1) {
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led1 = 0;
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led2 = 0;
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led3 = 0;
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if (uint32_t num = serial_port.read(buf, sizeof(buf))) {
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num_presses = another_press(num_presses);
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set_led(num_presses);
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// Echo the input back to the terminal.
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serial_port.write(buf, num);
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while (num == 0) {
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ThisThread::sleep_for(10ms);
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}
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}
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ThisThread::sleep_for(150ms);
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}
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}
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