add timer_control example.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@543 bbd45198-f89e-11dd-88c7-29a3b14d5316
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/*
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* 程序清单:动态定时器例程
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*
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* 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。
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*/
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#include <rtthread.h>
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#include "tc_comm.h"
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/* 定时器的控制块 */
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static rt_timer_t timer1;
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static rt_uint8_t count;
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/* 定时器超时函数 */
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static void timeout1(void* parameter)
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{
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rt_kprintf("periodic timer is timeout\n");
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count ++;
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/* 停止定时器自身 */
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if (count >= 8)
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{
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/* 控制定时器然后更改超时时间长度 */
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rt_timer_control(timer1, RT_TIMER_CTRL_SET_TIME, 50);
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count = 0;
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}
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}
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void timer_stop_self_init()
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{
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/* 创建定时器1 */
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timer1 = rt_timer_create("timer1", /* 定时器名字是 timer1 */
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timeout1, /* 超时时回调的处理函数 */
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RT_NULL, /* 超时函数的入口参数 */
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10, /* 定时长度,以OS Tick为单位,即10个OS Tick */
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RT_TIMER_FLAG_PERIODIC); /* 周期性定时器 */
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/* 启动定时器 */
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if (timer1 != RT_NULL)
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rt_timer_start(timer1);
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else
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tc_stat(TC_STAT_END | TC_STAT_FAILED);
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}
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#ifdef RT_USING_TC
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static void _tc_cleanup()
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{
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/* 调度器上锁,上锁后,将不再切换到其他线程,仅响应中断 */
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rt_enter_critical();
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/* 删除定时器对象 */
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rt_timer_delete(timer1);
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timer1 = RT_NULL;
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/* 调度器解锁 */
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rt_exit_critical();
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/* 设置TestCase状态 */
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tc_done(TC_STAT_PASSED);
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}
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int _tc_timer_stop_self()
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{
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/* 设置TestCase清理回调函数 */
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tc_cleanup(_tc_cleanup);
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/* 执行定时器例程 */
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count = 0;
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timer_stop_self_init();
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/* 返回TestCase运行的最长时间 */
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return 100;
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}
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/* 输出函数命令到finsh shell中 */
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FINSH_FUNCTION_EXPORT(_tc_timer_stop_self, a dynamic timer example);
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#else
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/* 用户应用入口 */
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int rt_application_init()
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{
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timer_stop_self_init();
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return 0;
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}
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#endif
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@ -25,8 +25,16 @@ static void timeout2(void* parameter)
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void timer_static_init()
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{
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/* 初始化定时器 */
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rt_timer_init(&timer1, "timer1", timeout1, RT_NULL, 10, RT_TIMER_FLAG_PERIODIC);
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rt_timer_init(&timer2, "timer2", timeout2, RT_NULL, 30, RT_TIMER_FLAG_ONE_SHOT);
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rt_timer_init(&timer1, "timer1", /* 定时器名字是 timer1 */
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timeout1, /* 超时时回调的处理函数 */
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RT_NULL, /* 超时函数的入口参数 */
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10, /* 定时长度,以OS Tick为单位,即10个OS Tick */
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RT_TIMER_FLAG_PERIODIC); /* 周期性定时器 */
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rt_timer_init(&timer2, "timer2", /* 定时器名字是 timer2 */
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timeout2, /* 超时时回调的处理函数 */
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RT_NULL, /* 超时函数的入口参数 */
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30, /* 定时长度为30个OS Tick */
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RT_TIMER_FLAG_ONE_SHOT); /* 单次定时器 */
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/* 启动定时器 */
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rt_timer_start(&timer1);
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@ -28,7 +28,7 @@ static void timeout1(void* parameter)
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void timer_stop_self_init()
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{
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/* 创建定时器1 */
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timer1 = rt_timer_stop_self("timer1", /* 定时器名字是 timer1 */
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timer1 = rt_timer_create("timer1", /* 定时器名字是 timer1 */
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timeout1, /* 超时时回调的处理函数 */
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RT_NULL, /* 超时函数的入口参数 */
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10, /* 定时长度,以OS Tick为单位,即10个OS Tick */
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