【KF64】基于mbed的ticker

mikeliujia · 发表于 2015-10-28 22:22:17

Ticker就是定时中断，反复的以一定速率调用定时中断函数。这里允许多个定时中断同时出现，该函数可以是静态函数，也可以是特定对象的成员函数。下面以定时中断让LED产生状态翻转为例。

#include "mbed.h"
Ticker flipper;
DigitalOut led1(LED_RED);
DigitalOut led2(LED_GREEN);
DigitalOut led3(LED_BLUE);
void flip() {
led2 = !led2;
}
int main() {
led1 = 1;
led2 = 1;
led3 = 1;
flipper.attach(&flip, 2.0); // the address of the function to be attached (flip) and the interval (2 seconds)
// spin in a main loop. flipper will interrupt it to call flip
while(1) {
led1 = !led1;
wait(0.2);
}
}