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LTC2983 Still returning -999, using Arduino Due and Demo board 2210A

Hello,

I'm trying to make my Arduino Due work with the Demo board 2210A, but it's look like I can't!

The communication seems to be ok, since if I remove it, I have an error, and if I remove the 2210A from the 2209A I have another type of error.

For now the 2209A is connected to the 2210A, I have a 1K connected between ch1 and ch2 as Rsense. I have 1k connecteed on pine 3 and 4, and a PT1000 between CH2 and Ch3

The CH 2 is connected to CH 4 either.

This is the code I'm using:

  Sensor_1_9.begin();
  retStatus = Sensor_1_9.setupSenseResistor( SENSE_RESISTOR_CH, RREF_PT1000 );
  retStatus = Sensor_1_9.setupRTD( ECS_IN_CH3, LTC298X_TYPE_PT_1000, SENSE_RESISTOR_CH, 2, LTC298X_MODE_SR, RTD_CURRENT_50uA, RTD_CURVE_EUROPEAN );
  retStatus = Sensor_1_9.setupRTD( ECS_OUT_CH5, LTC298X_TYPE_PT_1000, SENSE_RESISTOR_CH, 2, LTC298X_MODE_SR, RTD_CURRENT_50uA, RTD_CURVE_EUROPEAN );

  Sensor_1_9.reject6050Hz();
  Sensor_1_9.reportCelsius();

To read i'm using this:

  Sensor_1_9.selectConversionChannels( channel );
  Sensor_1_9.beginConversion( channel );
  do {
    isDone = Sensor_1_9.isDone();
  }
  while( isDone == 0 ); // wait until conversion is finished

  temperature = Sensor_1_9.readTemperature( channel );

And the library:

void LTC298X::reportCelsius(void) {
	uint8_t tmp = read8(LTC298X_ADDR_CONFIG_GLOB); //preserve old rejection settings
	this->write8(LTC298X_ADDR_CONFIG_GLOB, tmp & ~0x04); //unset B[2]
}
/*
 * Reject 60 and/or 50 Hz AC noises (75dB @ 1 ms MUX). Select single rejection for 120dB rejection.
 */
void LTC298X::reject6050Hz(void) {
	uint8_t tmp = read8(LTC298X_ADDR_CONFIG_GLOB) & ~0x03; //clear rejection bits and preserve reporting unit
	this->write8(LTC298X_ADDR_CONFIG_GLOB, tmp | LTC298X_REJECT_6050HZ); //set new rejection setting B[1:0]
}
*
 * Start sampling of ADCs. INTERRUPT will go LOW while conversion. If done, it toggles HIGH.
 */
void LTC298X::beginConversion(uint8_t ch) {
	if (ch > 20 || ch == 0) return;
	this->write8(LTC298X_ADDR_CMD, LTC298X_CMD_BEGIN | ch);
}
void LTC298X::beginMultipleConversion(void) {
	this->write8(LTC298X_ADDR_CMD, LTC298X_CMD_BEGIN); //B[4:0] = 0
}

/*
 * Setup a RTD on a given channel.
 * Params:
 * ch          | Channel (2-20) to use. CH - 1 is always used. CH - 2 is used on 3-wire and 4-wire RTDs. CH + 1 is used on 4-wire RTDs.
 * type        | Any from LTC298X_TYPE_PT_10 to LTC298X_TYPE_NI_120
 * sr_ch       | Channel (2-20) of sense resistor
 * wires       | Number of wires (2-5), while 5 equals to 4-wire and Kelvin Rsense
 * cs_rotation | Current source rotation (only available for > 2 wires)
 * sr_sharing  | Sense resistor sharing, internal grounding
 * current     | Current used for open circuit detection. Any from RTD_CURRENT_5uA to RTD_CURRENT_1mA
 * curve       | Can be any of RTD_CURVE_EUROPEAN, RTD_CURVE_AMERICAN, RTD_CURVE_JAPANESE, RTD_CURVE_ITS_90
 */
bool LTC298X::setupRTD(uint8_t ch, uint8_t type, uint8_t sr_ch, uint8_t wires, uint8_t mode, uint8_t current, uint8_t curve) {
	if (ch < (2 + (wires > 2)) ||
	    (ch + (wires >= 4)) > 20 ||
	    sr_ch < 2 ||
	    sr_ch > 20 ||
	    wires < 2 ||
	    wires > 5 ||
	    (wires < 4 && mode == LTC298X_MODE_CS_SR) ||
	    mode > LTC298X_MODE_CS_SR ||
	    type < LTC298X_TYPE_PT_10 ||
	    type > LTC298X_TYPE_NI_120
	) return false; //invalid
	//remove unnecessary casts
	uint32_t transmit = type;                //B[31:27]
	transmit <<= 5; transmit |= sr_ch;       //B[26:22]
	transmit <<= 2; transmit |= wires - 2;   //B[21:20]
	transmit <<= 2; transmit |= mode;        //B[19:18]
	transmit <<= 4; transmit |= current;     //B[17:14]
	transmit <<= 2; transmit |= curve;       //B[13:12]
	transmit <<= 12;                         //B[11:00] unused for predefined RTD
	this->write32(LTC298X_ADDR_CONFIG_CH1 + (ch - 1) * 4, transmit); // 0x200 + ch-1*4

	return true;
}

Anything Popout of your head of what's not working

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