SPI Communication mode between Arduino Ethernet and EVAL-ADAU1701MINIZ

Projects Networking, Protocols, and Devices
12

Good day guys,

I’m now back to solve this SPI communication again. My I2C communication doing just a bit fine but got 'pop' and 'click' noise problem at speaker during interaction between Arduino and EVALADAU1701 board.

To continue start with previous discussion, Below is my schematic:

I’ve did the bi-directional level converter and tried riva’s code by adding:

void loop(){
  DSP_Write16(0x081A,0x00FE); //parameter data 0x00FE at address 0x081A capture window
  Serial.println(DSP_Read16(0x081A),HEX);
  delay(100);
}

But still don’t get the correct value. It just give me at serial window:

FFFF
FFFF
FFFF
:
:

Any suggestion how should I proceed?

Thanks and Regards,
Kal