pajama

_slaveDevice.Execute(writeXAction, transactionTimeout) is returning 0

I would try using the WriteRegister and ReadRegister methods rather than the generic Write and Read methods.

Thank you for the suggestion.

Here's what I'm doing, still getting the same error. Should my writebuffer be a different size?

 public byte ReadVersion()
        {
            // write register address
            byte[] writeBuffer = new byte[1];
            I2CBus.GetInstance().WriteRegister(_slaveConfiguration, (byte)CommandRegisters.ProductId, writeBuffer, TransactionTimeout);

            // get the byte result
            byte[] data = new byte[1];
            I2CBus.GetInstance().ReadRegister(_slaveConfiguration, (byte)CommandRegisters.ProductId, data,TransactionTimeout);
            //force the convertion to a signed byte
            return data[0];
        }

 

• You are using a 8-bit I2C address in your code. (0x27) and it needs to be a 7-bit address (0x13).
• Your I2C clock is set too high. I do not think that the Net Micro Framework supports clock at 3400. Try setting your clock to 100 and then (if successful) try a higher clock (400).

 

Thank you for the reply! I changed the values above. Still throwing an exception here: