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Re: Sigma300 (ADAU145x) Q&A

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I'm getting very close to finishing up my project, but the limiter block has me puzzled.

The Ratio and Active Flag pin readings just don't add up.

The Active Flag output is all over the place even with a very small scale input signal too, while the Ratio output doesn't move a muscle, whatever settings are entered in the limiter.

Could any of you guys check whether it's a bug or I'm missing something?

 

Otherwise everything is working beautiful over SPI, the DSP is running at 100% instruction cycles with 99% DM0 & DM1 It's a truly neat little chip. I just wish the FIR filter would use 0.32 format instead of the 8.24.


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