Hi All,
This bit of code is what I am doing to interface with a Analog Devices LTC1325. I need to send 6 Bytes of code to have it perform a function. My issue is that the 4, 5, and 6 bytes need to be stored in a variable so that I can extract the ADC reading and status of the chip. If I use ADCByte1 = SPI.trasnfer(0) it seems to send that byte over MOSI, at least that is what I see with my LA. I thought that command would simply place the byte in ADCByte1...
Any insight appreciated
if (LCDML.FUNC_setup()) // ****** SETUP *********
{
//LCD Print
lcd.clear();
lcd.setCursor(1, 0);
lcd.print("Charging");
lcd.setCursor(1, 1);
lcd.print("Vbat=");
lcd.setCursor(1, 2);
lcd.print(LTC1325Status);
//SPI for LTC1325
pinMode(CS_Pin, OUTPUT); // set the slaveSelectPin as an output:
pinMode(53, OUTPUT); //Insure Mega is Master
digitalWrite(CS_Pin, HIGH); // Activate the CS line (CS is active Low)
SPI.begin();
SPI.beginTransaction(SPISettings(125000, MSBFIRST, SPI_MODE0));
delay(100); //Let things stabalize
//LTC1325 ADC and Status
byte ADCByte1=0;
byte ADCByte2=0;
byte LTC1325Status=0;
// remmove compiler warnings when the param variable is not used:
LCDML_UNUSED(param);
// setup
// is called only if it is started
// starts a trigger event for the loop function every 100 milliseconds
LCDML.FUNC_setLoopInterval(5000);
// uncomment this line when the menu should go back to the last called position
// this could be a cursor position or the an active menu function
// GBA means => go back advanced
LCDML.FUNC_setGBA();
//
}
if (LCDML.FUNC_loop()) // ****** LOOP *********
{
// Set CS Pin LOW
digitalWrite(CS_Pin, LOW); // Activate the CS line (CS is active LOW)
delay(1);
//Send 6 Bytes to ltc1325
SPI.transfer(0b00000010); // Send First byte
SPI.transfer(0b00100100); // Send Second byte
SPI.transfer(0b00000011); // Send Third byte
SPI.transfer(0b11000000); // Send Forth byte
ADCByte1 = SPI.transfer(0); // get RXbyte4 result and place in ADCByte1
SPI.transfer(0b00000000); // Send Fifth byte
ADCByte2 = SPI.transfer(0); // get RXbyte5 result and place in ADCByte2
SPI.transfer(0b00000000); // Send Sixte byte
LTC1325Status = SPI.transfer(0); // get RXbyte6 result and place in LTC1325Status
delay(1);
//Set CS_Pin High
digitalWrite(CS_Pin, HIGH); // Enable internal pull-up
