From a08d9637b608c2f94925e2d304080026b771e7fb Mon Sep 17 00:00:00 2001 From: "bernard.xiong" Date: Thu, 25 Mar 2010 14:35:50 +0000 Subject: add timer examples. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@542 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- examples/kernel/timer_dynamic.c | 91 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 examples/kernel/timer_dynamic.c (limited to 'examples/kernel/timer_dynamic.c') diff --git a/examples/kernel/timer_dynamic.c b/examples/kernel/timer_dynamic.c new file mode 100644 index 0000000000..a4f5ed947f --- /dev/null +++ b/examples/kernel/timer_dynamic.c @@ -0,0 +1,91 @@ +/* + * 程序清单:动态定时器例程 + * + * 这个例程会创建两个动态定时器对象,一个是单次定时,一个是周期性的定时 + */ +#include +#include "tc_comm.h" + +/* 定时器的控制块 */ +static rt_timer_t timer1; +static rt_timer_t timer2; + +/* 定时器1超时函数 */ +void timeout1(void* parameter) +{ + rt_kprintf("periodic timer is timeout\n"); +} + +/* 定时器2超时函数 */ +void timeout2(void* parameter) +{ + rt_kprintf("one shot timer is timeout\n"); +} + +void timer_create_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); + + /* 创建定时器2 */ + timer2 = rt_timer_create("timer2", /* 定时器名字是 timer2 */ + timeout2, /* 超时时回调的处理函数 */ + RT_NULL, /* 超时函数的入口参数 */ + 30, /* 定时长度为30个OS Tick */ + RT_TIMER_FLAG_ONE_SHOT); /* 单次定时器 */ + + /* 启动定时器 */ + if (timer2 != RT_NULL) + rt_timer_start(timer2); + 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); + rt_timer_delete(timer2); + + /* 调度器解锁 */ + rt_exit_critical(); + + /* 设置TestCase状态 */ + tc_done(TC_STAT_PASSED); +} + +int _tc_timer_create() +{ + /* 设置TestCase清理回调函数 */ + tc_cleanup(_tc_cleanup); + + /* 执行定时器例程 */ + timer_create_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_create, a dynamic timer example); +#else +/* 用户应用入口 */ +int rt_application_init() +{ + timer_create_init(); + + return 0; +} +#endif -- cgit v1.3.1