如何使用cc2530中的定时/计数器
时间: 2024-01-29 15:02:25 浏览: 290
在CC2530中,定时/计数器可以用来实现精确的时间测量和延时功能。下面是使用CC2530中的定时/计数器的步骤:
1. 定义一个定时器/计数器控制块结构体,例如:
```c
typedef struct {
uint16_t period; // 计数器重载值
uint16_t count; // 当前计数器值
bool running; // 计数器是否正在运行
} timer_t;
```
2. 初始化定时器/计数器,例如:
```c
void timer_init(timer_t *timer, uint16_t period) {
timer->period = period;
timer->count = 0;
timer->running = false;
}
```
3. 启动定时器/计数器,例如:
```c
void timer_start(timer_t *timer) {
timer->count = 0;
timer->running = true;
}
```
4. 停止定时器/计数器,例如:
```c
void timer_stop(timer_t *timer) {
timer->running = false;
}
```
5. 定时器/计数器中断处理函数,例如:
```c
#pragma vector=TIMER0_A0_VECTOR
__interrupt void timer_isr(void) {
timer.count++;
if (timer.count >= timer.period) {
timer.running = false;
// 执行定时器/计数器超时操作
}
}
```
6. 在应用程序中使用定时器/计数器,例如:
```c
timer_t my_timer;
timer_init(&my_timer, 1000); // 初始化定时器/计数器,周期为1000个时钟周期
timer_start(&my_timer); // 启动定时器/计数器
while (my_timer.running) {
// 等待定时器/计数器超时
}
// 执行定时器/计数器超时操作
```
以上是使用CC2530中的定时/计数器的基本步骤,具体实现可以根据应用场景进行调整。
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