Function ACMP_ChannelSet

bsp/efm32/Libraries/emlib/src/em_acmp.c:242–254

/ * @brief * Sets which channels should be used in ACMP comparisons. * * @param[in] acmp * Pointer to the ACMP peripheral register block. * * @param negSel * Channel to use on the negative input to the ACMP. * * @param posSel * Channel to use on the positive input to the ACMP. ******************************************************************************/

 *   Channel to use on the positive input to the ACMP.
 ******************************************************************************/
void ACMP_ChannelSet(ACMP_TypeDef *acmp, ACMP_Channel_TypeDef negSel,
                     ACMP_Channel_TypeDef posSel)
{
  /* Make sure that only external channels are used as ACMP positive input */
  EFM_ASSERT(posSel < _ACMP_INPUTSEL_NEGSEL_1V25);
  /* Sanity checking of ACMP negative input */
  EFM_ASSERT(negSel <= _ACMP_INPUTSEL_NEGSEL_VDD);

  acmp->INPUTSEL = (acmp->INPUTSEL & ~(_ACMP_INPUTSEL_POSSEL_MASK |
                                       _ACMP_INPUTSEL_NEGSEL_MASK))
                   | (negSel << _ACMP_INPUTSEL_NEGSEL_SHIFT)
                   | (posSel << _ACMP_INPUTSEL_POSSEL_SHIFT);
}

/***************************************************************************//**
 * @brief