Interface Status saved
Hello,
I have read the Article about the Interface write back to EEPROM. I have currently a problem where I switch 2 signal sources with push button, very simple. But as it was stated that the WRITEBACK mechanism is not properly setup, I think it happens for me too. Doesn't matter which of the 2 states was selected before power off, it will always boot with the same.
Since that article is already 10 years old - is there any progress or workaround on this topic? Thanks!
That schematic is for testing purposes with the ADAU1701 MINIZ board.
Audio Signal Processors
software
writeback
SigmaDSP Audio Processors
interface
adau1701
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Hello ThomasGZ
Have you put a scope on the I2C lines to see if it does finish the write to the EEPROM before the voltage goes down?
Here are some older posts that might shed some light on the subject.
This is an older post that discusses why the 1701 MINIZ eval board cirtuit will not work.
(+) Writeback trigger circuit on EVAL-ADAU1701 MINIZ board - Q&A - SigmaDSP Processors and SigmaStudio Development Tool - EngineerZone (analog.com)
This post talks about other ways to implement the WB trigger.
(+) EVAL-ADAU1701 MINIZ Writeback Circuit - Q&A - SigmaDSP Processors and SigmaStudio Development Tool - EngineerZone (analog.com)
This post I talked about how to implement a multiple writeback function. You have to scroll down a bit to get to it.
(+) Where to write in EEPROM "set multiple writeback" ? - Q&A - SigmaDSP Processors and SigmaStudio Development Tool - EngineerZone (analog.com)
Dave T
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