85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
/*
|
||
* 程序清单：动态定时器例程
|
||
*
|
||
* 这个例程会创建1个动态周期型定时器对象，然后控制它进行定时时间长度的更改。
|
||
*/
|
||
#include <rtthread.h>
|
||
#include "tc_comm.h"
|
||
|
||
/* 定时器的控制块 */
|
||
static rt_timer_t timer1;
|
||
static rt_uint8_t count;
|
||
|
||
/* 定时器超时函数 */
|
||
static void timeout1(void* parameter)
|
||
{
|
||
rt_tick_t timeout = 50;
|
||
|
||
rt_kprintf("periodic timer is timeout\n");
|
||
|
||
count ++;
|
||
/* 停止定时器自身 */
|
||
if (count >= 8)
|
||
{
|
||
/* 控制定时器然后更改超时时间长度 */
|
||
rt_timer_control(timer1, RT_TIMER_CTRL_SET_TIME, (void *)&timeout);
|
||
count = 0;
|
||
}
|
||
}
|
||
|
||
void timer_control_init()
|
||
{
|
||
/* 创建定时器1 */
|
||
timer1 = rt_timer_create("timer1", /* 定时器名字是 timer1 */
|
||
timeout1, /* 超时时回调的处理函数 */
|
||
RT_NULL, /* 超时函数的入口参数 */
|
||
10, /* 定时长度，以OS Tick为单位，即10个OS Tick */
|
||
RT_TIMER_FLAG_PERIODIC); /* 周期性定时器 */
|
||
/* 启动定时器 */
|
||
if (timer1 != RT_NULL)
|
||
rt_timer_start(timer1);
|
||
else
|
||
tc_stat(TC_STAT_END | TC_STAT_FAILED);
|
||
}
|
||
|
||
#ifdef RT_USING_TC
|
||
static void _tc_cleanup()
|
||
{
|
||
/* 调度器上锁，上锁后，将不再切换到其他线程，仅响应中断 */
|
||
rt_enter_critical();
|
||
|
||
/* 删除定时器对象 */
|
||
rt_timer_delete(timer1);
|
||
timer1 = RT_NULL;
|
||
|
||
/* 调度器解锁 */
|
||
rt_exit_critical();
|
||
|
||
/* 设置TestCase状态 */
|
||
tc_done(TC_STAT_PASSED);
|
||
}
|
||
|
||
int _tc_timer_control()
|
||
{
|
||
/* 设置TestCase清理回调函数 */
|
||
tc_cleanup(_tc_cleanup);
|
||
|
||
/* 执行定时器例程 */
|
||
count = 0;
|
||
timer_control_init();
|
||
|
||
/* 返回TestCase运行的最长时间 */
|
||
return 100;
|
||
}
|
||
/* 输出函数命令到finsh shell中 */
|
||
FINSH_FUNCTION_EXPORT(_tc_timer_control, a timer control example);
|
||
#else
|
||
/* 用户应用入口 */
|
||
int rt_application_init()
|
||
{
|
||
timer_control_init();
|
||
|
||
return 0;
|
||
}
|
||
#endif
|