TODO: excitation voltage range, settling time cycles

[mjmeli]

These need to be implemented. Anyone is welcome to contribute.

http://www.analog.com/media/en/technical-documentation/data-sheets/AD5933.pdf

Excitation voltage range: Table 10 (pg. 23)

Settling time cycles: Table 13 (pg. 25)

[andrewbourhis]

Shouldn't it be a simple matter of the following:

`
#define CTRL_VOLT_RANGE1 (0b00000000)
#define CTRL_VOLT_RANGE2 (0b00000110)
#define CTRL_VOLT_RANGE3 (0b00000100)
#define CTRL_VOLT_RANGE4 (0b00000010)

/**

• Set the excitation voltage range.

• @param range The voltage range

• @return Success or failure
  */
  bool AD5933::setExcitationVoltageRange(unsigned int range){
  byte val;
  if (!getByte(CTRL_REG1, &val))
  return false;

  // Clear out bits D9 and D10, which are the excitation voltage range bits
  val &= 0xF9;

  switch(range){
  case 1:
  val |= CTRL_VOLT_RANGE1;
  break;
  case 2:
  val |= CTRL_VOLT_RANGE2;
  break;
  case 3:
  val |= CTRL_VOLT_RANGE3;
  break;
  case 4:
  val |= CTRL_VOLT_RANGE4;
  break;
  default:
  return false;
  }
  return sendByte(CTRL_REG1,val);
  }`

[mjmeli]

Probably, this wasn't used in our implementation that used this library and so it was simply never written. If you have written this and it works then feel free to do a PR.

[andrewbourhis]

Great, I'll be sure to do so when I am able to test it with hardware.

Thanks for posting this by the way, saved me some time!

[qaisarabbasr]

has anyone built all the code involving CN-0217 and all the ranges. kindly attach code as it would be very helpful.I have made the hardware but finding difficulties in code.
Thanks
qaisar