Function ADC_Init

bsp/efm32/Libraries/emlib/src/em_adc.c:252–273

/ * @brief * Initialize ADC. * * @details * Initializes common parts for both single conversion and scan sequence. * In addition, single and/or scan control configuration must be done, please * refer to ADC_InitSingle() and ADC_InitScan() respectively. * * @note * This function will stop any ongoing conversion. * * @param[in] adc * Pointer to ADC peripheral register block.

 *   Pointer to ADC initialization structure.
 ******************************************************************************/
void ADC_Init(ADC_TypeDef *adc, const ADC_Init_TypeDef *init)
{
  uint32_t tmp;

  EFM_ASSERT(ADC_REF_VALID(adc));

  /* Make sure conversion is not in progress */
  adc->CMD = ADC_CMD_SINGLESTOP | ADC_CMD_SCANSTOP;

  tmp = ((uint32_t)(init->ovsRateSel) << _ADC_CTRL_OVSRSEL_SHIFT) |
        (((uint32_t)(init->timebase) << _ADC_CTRL_TIMEBASE_SHIFT) & _ADC_CTRL_TIMEBASE_MASK) |
        (((uint32_t)(init->prescale) << _ADC_CTRL_PRESC_SHIFT) & _ADC_CTRL_PRESC_MASK) |
        ((uint32_t)(init->lpfMode) << _ADC_CTRL_LPFMODE_SHIFT) |
        ((uint32_t)(init->warmUpMode) << _ADC_CTRL_WARMUPMODE_SHIFT);

  if (init->tailgate)
  {
    tmp |= ADC_CTRL_TAILGATE;
  }

  adc->CTRL = tmp;
}


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