求助：利用定时器实现灯闪烁，代码哪有问题（已解决）

翱翔太空-423505

/*FUNCTION*------------------------------------------------------
*
* Function Name  : LED_on
* Returned Value : none
* Comments       :
*     This timer function prints out "ON"
*END*-----------------------------------------------------------*/
static void LED_on
   (
      _timer_id id,
      pointer data_ptr,
      MQX_TICK_STRUCT_PTR tick_ptr
   )
{
   printf("ON\n");
}
/*FUNCTION*------------------------------------------------------
*
* Function Name  : LED_off
* Returned Value : none
* Comments       :
*     This timer function prints out "OFF"
*END*-----------------------------------------------------------*/
static void LED_off
   (
      _timer_id id,
      pointer data_ptr,
      MQX_TICK_STRUCT_PTR tick_ptr
   )
{
   printf("OFF\n");
}
/*TASK*----------------------------------------------------------
*
* Task Name : main_task
* Comments  :
*     This task creates two timers, each of a period of 2 seconds,
*     the second timer offset by 1 second from the first.
*END*-----------------------------------------------------------*/
void main_task
   (
      uint_32 initial_data
   )
{
   MQX_TICK_STRUCT ticks;
   MQX_TICK_STRUCT dticks;
   _timer_id       on_timer;
   _timer_id       off_timer;
   uint_8          time = 6; // time in seconds
   printf("\n\nTwo timers are created, each of a period of 2 seconds,\nthe second timer offset by 1 second from the first.\n");
   printf("Task runs for %d seconds,\nthen timers are closed and task finishes.\n\n", time);          
   /*
   ** Create the timer component with more stack than the default
   ** in order to handle printf() requirements:
   */
   _timer_create_component(TIMER_TASK_PRIORITY, TIMER_STACK_SIZE);
   _time_init_ticks(&dticks, 0);
   _time_add_sec_to_ticks(&dticks, 2);
   _time_get_elapsed_ticks(&ticks);
   _time_add_sec_to_ticks(&ticks, 1);
   on_timer = _timer_start_periodic_at_ticks(LED_on, 0,
      TIMER_ELAPSED_TIME_MODE, &ticks, &dticks);
   _time_add_sec_to_ticks(&ticks, 1);
   off_timer = _timer_start_periodic_at_ticks(LED_off, 0,
      TIMER_ELAPSED_TIME_MODE, &ticks, &dticks);
   _time_delay(time * 1000); // wait 6 seconds
   printf("\nThe task is finished!");
   _timer_cancel(on_timer);
   _timer_cancel(off_timer);
   _task_block();
}

我知道答案 目前已有3人回答

阅读全文

FSL_TICS_Kan

这个不就是官方例程的代码么？你能具体说说碰到什么问题吗？

翱翔太空-423505

是的，但是LED_on和LED_off程序没有执行，我不知道那的问题

翱翔太空-423505

那位大侠给个结果呀。是什么寄存器没初始化呀，还是tick没有启动呀
 

翱翔太空-423505

哈哈哈，解决啦，真高兴。