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ADAU1761 - Feedback module causes problem in Microcontroller integration

Question asked by vnadon_B_ING on May 14, 2015
Latest reply on May 19, 2015 by vnadon_B_ING

Hi,

 

I have a problem with the Feedback module. I get some weird behavior of my algorithm only when I integrate it in my microcontroller. When I test it in SigmaStudio everything is fine.

 

I have 3 Feedback modules in this DSP, only 1 of them causes real problems (see Fb4 in the following post https://ez.analog.com/message/186955#186955). When this Feedback module is in the design the value I read using a DSP readback is wrong, even if this DSP readback is not directly connected to the Feedback module.

 

I really need the Feedback module causing the problem since it is crucial in my algorithm design...

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