AnsweredAssumed Answered

Sigma Studio and EEPROM Programming

Question asked by freemanc on Nov 7, 2013
Latest reply on Nov 11, 2013 by Skfir

Hi Guys,

 

I need your help again please.  I had problems getting the ADAU1701 working in selfboot mode, and the problem was solved here:

 

http://ez.analog.com/message/115973

 

When replicating my PCB with the mods, it did not work.  Oscillator is running and the digital supply is correct, so I assume the DSP is willing to run.  However, in Sigma Studio, I keep getting the "Compiled. Comms Failed" error.  So I hooked up a separate PCB with JUST the EEPROM on it, here is the schematic:

 

12.jpg

SCL and SDA have pull-ups of 2.2k each to PVDD, which is 3.3V.  So this schematic SHOULD be fine with Sigma Studio?  For some reason it's not, I get the same error.  My USBi interface is working fine, because I can still program the evaluation kit!

 

To make matters worse, the old PCB which I kept as a reference, is no longer working for whatever reason I have no clue.

 

Please help!

 

Kind regards

Charles

Outcomes