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EVAL-ADAU1701 MINIZ Writeback Circuit

Question asked by dan_xerx on Dec 23, 2013
Latest reply on Apr 7, 2014 by dan_xerx

Hello Brett!


I have noticed strange behaviour of the mini board ADAU1701 in which the it doesn't do the writeback sequence everytime I do the RESET or re-power up. I believe the writeback circuit allows or triggers the WB pin so the sigma DSP writes the updated param data right after power down or reset.


I have found previous discussion saying the the writeback circuit layout has some errors. Is this already solved by now? I have purchased the mini board just two months ago in October 2013.


I want to study the writeback behaviour of the DSP with a master controller in the system modifying the DSP parameters and the DSP does the writeback to the EEPROM.


Thanks and regards,