Method begin

libraries/AD985X/AD985X.cpp:34–84

void AD9850::begin(uint8_t select, uint8_t resetPin, uint8_t FQUDPin, uint8_t dataOut , uint8_t clock)
{
  _select  = select;
  _reset   = resetPin;
  _fqud    = FQUDPin;
  _dataOut = dataOut;
  _clock   = clock;
  //  following 3 are always set.
  pinMode(_select, OUTPUT);
  pinMode(_reset,  OUTPUT);
  pinMode(_fqud,   OUTPUT);
  //  device select = HIGH  See - https://github.com/RobTillaart/AD985X/issues/13
  digitalWrite(_select, LOW);
  digitalWrite(_reset,  LOW);
  digitalWrite(_fqud,   LOW);

  _hwSPI = ((dataOut == 0) || (clock == 0));

  _spi_settings = SPISettings(2000000, LSBFIRST, SPI_MODE0);

  if (_hwSPI)
  {
    #if defined(ESP32)
    if (_useHSPI)      //  HSPI
    {
      mySPI = new SPIClass(HSPI);
      mySPI->end();
      mySPI->begin(14, 12, 13, select);   //  CLK=14 MISO=12 MOSI=13
    }
    else               //  VSPI
    {
      mySPI = new SPIClass(VSPI);
      mySPI->end();
      mySPI->begin(18, 19, 23, select);   //  CLK=18 MISO=19 MOSI=23
    }
    #else              //  generic hardware SPI
    mySPI = &SPI;
    mySPI->end();
    mySPI->begin();
    #endif
  }
  else                 //  software SPI
  {
    pinMode(_dataOut, OUTPUT);
    pinMode(_clock,   OUTPUT);
    digitalWrite(_dataOut, LOW);
    digitalWrite(_clock,   LOW);
  }

  reset();
}


#if defined(ESP32)