Function LETIMER_RepeatSet

bsp/efm32/Libraries/emlib/src/em_letimer.c:456–496

/ * @brief * Set LETIMER repeat counter register value. * * @note * The setting of a repeat counter register requires synchronization into the * low frequency domain. If the same register is modified before a previous * update has completed, this function will stall until the previous * synchronization has completed. This only applies to the Gecko Family, see * comment in the L

 *   Initialization value (<= 0x0000ffff)
 ******************************************************************************/
void LETIMER_RepeatSet(LETIMER_TypeDef *letimer,
                       unsigned int rep,
                       uint32_t value)
{
  volatile uint32_t *repReg;
#if defined(_EFM32_GECKO_FAMILY)
  uint32_t          syncbusy;
#endif
  EFM_ASSERT(LETIMER_REF_VALID(letimer) &&
             LETIMER_REP_REG_VALID(rep) &&
             ((value & ~(_LETIMER_REP0_REP0_MASK >> _LETIMER_REP0_REP0_SHIFT)) == 0));

  /* Initialize selected compare value */
  switch (rep)
  {
  case 0:
    repReg = &(letimer->REP0);
#if defined(_EFM32_GECKO_FAMILY)
    syncbusy = LETIMER_SYNCBUSY_REP0;
#endif
    break;

  case 1:
    repReg = &(letimer->REP1);
#if defined(_EFM32_GECKO_FAMILY)
    syncbusy = LETIMER_SYNCBUSY_REP1;
#endif
    break;

  default:
    /* Unknown compare register selected, abort */
    return;
  }

#if defined(_EFM32_GECKO_FAMILY)
  /* LF register about to be modified require sync. busy check */
  LETIMER_Sync(letimer, syncbusy);
#endif

  *repReg = value;
}


/***************************************************************************//**