Function LETIMER_Init

bsp/efm32/Libraries/emlib/src/em_letimer.c:321–393

/ * @brief * Initialize LETIMER. * * @details * Note that the compare/repeat values must be set separately with * LETIMER_CompareSet() and LETIMER_RepeatSet(). That should probably be done * prior to the use of this function if configuring the LETIMER to start when * initialization is completed. * * @note * The initialization of the LETIMER modifies the LETIMER CTRL/CMD regis

 *   Pointer to LETIMER initialization structure.
 ******************************************************************************/
void LETIMER_Init(LETIMER_TypeDef *letimer, const LETIMER_Init_TypeDef *init)
{
  uint32_t tmp = 0;

  EFM_ASSERT(LETIMER_REF_VALID(letimer));

  /* Stop timer if specified to be disabled and running */
  if (!(init->enable) && (letimer->STATUS & LETIMER_STATUS_RUNNING))
  {
#if defined(_EFM32_GECKO_FAMILY)
    /* LF register about to be modified require sync. busy check */
    LETIMER_Sync(letimer, LETIMER_SYNCBUSY_CMD);
#endif
    letimer->CMD = LETIMER_CMD_STOP;
  }

  /* Configure DEBUGRUN flag, sets whether or not counter should be
   * updated when debugger is active */
  if (init->debugRun)
  {
    tmp |= LETIMER_CTRL_DEBUGRUN;
  }

  if (init->rtcComp0Enable)
  {
    tmp |= LETIMER_CTRL_RTCC0TEN;
  }

  if (init->rtcComp1Enable)
  {
    tmp |= LETIMER_CTRL_RTCC1TEN;
  }

  if (init->comp0Top)
  {
    tmp |= LETIMER_CTRL_COMP0TOP;
  }

  if (init->bufTop)
  {
    tmp |= LETIMER_CTRL_BUFTOP;
  }

  if (init->out0Pol)
  {
    tmp |= LETIMER_CTRL_OPOL0;
  }

  if (init->out1Pol)
  {
    tmp |= LETIMER_CTRL_OPOL1;
  }

  tmp |= init->ufoa0 << _LETIMER_CTRL_UFOA0_SHIFT;
  tmp |= init->ufoa1 << _LETIMER_CTRL_UFOA1_SHIFT;
  tmp |= init->repMode << _LETIMER_CTRL_REPMODE_SHIFT;

#if defined(_EFM32_GECKO_FAMILY)