C++ (Cpp) sysTimerTick示例

示例#1

文件： rt_System.c 项目： GuentherMartin/CMSIS_5

void rt_systick (void) {
  /* Check for system clock update, suspend running task. */
  P_TCB next;

  os_tsk.run->state = READY;
  rt_put_rdy_first (os_tsk.run);

  /* Check Round Robin timeout. */
  rt_chk_robin ();

  /* Update delays. */
  os_time++;
  rt_dec_dly ();

  /* Check the user timers. */
#ifdef __CMSIS_RTOS
  sysTimerTick();
#else
  rt_tmr_tick ();
#endif

  /* Switch back to highest ready task */
  next = rt_get_first (&os_rdy);
  rt_switch_req (next);
}

示例#2

文件： rt_System.c 项目： Babody/mbed

void rt_systick (void) {
  if(NVIC_Pending(SYS_TICK_IRQn)){
    rt_pop_req();
    NVIC_UnpendIRQ(SYS_TICK_IRQn);
    SYS_TICK_TIMER->IR = 0xF; // clear timer interrupt
    return;
  }
  /* Check for system clock update, suspend running task. */
  P_TCB next;

  os_tsk.run->state = READY;
  rt_put_rdy_first (os_tsk.run);

  /* Check Round Robin timeout. */
  rt_chk_robin ();

  /* Update delays. */
  os_time++;
  rt_dec_dly ();

  /* Check the user timers. */
#ifdef __CMSIS_RTOS
  sysTimerTick();
#else
  rt_tmr_tick ();
#endif

  /* Switch back to highest ready task */
  next = rt_get_first (&os_rdy);
  rt_switch_req (next);
  SYS_TICK_TIMER->IR = 0xF; // clear timer interrupt
}