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Reading the AD5696R

I am investigating a problem we are having with reading from the AD5696R. When following the "read operation" procedure, the value returned is nearly always 0x91. I attached a Corelis BusPro-I I2C monitor to the EVAL-AD5696RSDZ and performed a read, and noticed that it did not seem to be following the procedure. When reading from DAC C, the command following the first address byte was 14, not 04 as I understood from the datasheet. Can you explain why I am seeing a different read operation than is described in the datasheet? 

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  • Somehow, this picture didn't stay in my last post the way the others did. In any case, the multimeter has been part of my testing all along, and I only share the picture because you asked me to check.

    I am sure I have the correct address because several times (March 8, March 13, and March 14 above), I have written that I can write to the AD5696R using the BusPro-I. On all of those occasions, the writes could be verified using a multimeter or by triggering a read using the ACE software. 

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  • Somehow, this picture didn't stay in my last post the way the others did. In any case, the multimeter has been part of my testing all along, and I only share the picture because you asked me to check.

    I am sure I have the correct address because several times (March 8, March 13, and March 14 above), I have written that I can write to the AD5696R using the BusPro-I. On all of those occasions, the writes could be verified using a multimeter or by triggering a read using the ACE software. 

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