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Eval-AD5421 comms issue

Question asked by stefanc on Sep 16, 2015
Latest reply on Sep 16, 2015 by stefanc



I'm trying to set up the SPI communication for the AD5421 evaluation board but i've encountered some difficulty.

I'm trying to read the control register or the DAC register but the replies I get don't make much sense.

Control reg read request: 0x82 0x00 0x00

                            reply: 0x80 0x00 0x00

I can't see any reference to a 0x80 address in the datasheet and i've spent quite a bit of time trying to debug it without getting anywhere.

Any help regarding the issue would be greatly appreciated.


Kind regards