mbed STM32F4DISCOVERY 简单 LED 演示

#include <mbed.h>

DigitalOut greenLED(PD_12);
DigitalOut orangeLED(PD_13);
DigitalOut redLED(PD_14);
DigitalOut blueLED(PD_15);

int main() {
  while(1) {
    // 按顺序循环 LED
    // 注意：你可以使用以下命令切换 LED
    //  blueLED = !blueLED;
    blueLED = 0;
    greenLED = 1;
    wait(0.25);
    greenLED = 0;
    orangeLED = 1;
    wait(0.25);
    orangeLED = 0;
    redLED = 1;
    wait(0.25);
    redLED = 0;
    blueLED = 1;
    wait(0.25);
  }
}