CN0510 port to Arduino Uno / ESP32

I know there isn't an existing Arduino Uno or ESP32 project for the CN0510, so porting the existing code is going to be your best option. 

Adding Akila  to see if she has any advice.

Yes. There is no Arduino Uno or ESP32 project available on repository.

Hej Akila,

I made my ESP32 WROOM 32D to communicate with the AD5940. But there is still an issue, I guess.

I have rewritten the ReadWriteNBytes function like this.

void AD5940_ReadWriteNBytes(unsigned char *pSendBuffer, unsigned char *pRecvBuff, unsigned long length)
{
    SPI.transfer(pSendBuffer, length);

    pRecvBuff = pSendBuffer;
 
}

In AD5940Main.cpp in function int32_t AD5940PlatformCfg(void) in AD5940_Initialize();

I dont get the correct CHIPID

  for (i = 0; i < sizeof(RegTable) / sizeof(RegTable[0]); i++)
    AD5940_WriteReg(RegTable[i].reg_addr, RegTable[i].reg_data);

  i = AD5940_ReadReg(REG_AFECON_CHIPID);
  Serial.print("ID: ");
  Serial.println(i, HEX);

It gives me ID: 8000

BUT, on my logic analyzer I can see the correct ID coming.

 

Hi,

You may refer to

- (+) AD5940 SPI communication setup - Q&A - Precision ADCs - EngineerZone (analog.com)

- (+) AD5940 SPI Issue - Q&A - Precision ADCs - EngineerZone (analog.com)