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Altera_Forum's avatar
Altera_Forum
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16 years ago

newbie help with WM8731 codec

Hi, I just got a cyclone ii dev kit and I'm having some problem with the audio codec on it. I'm trying to make a dsp module which gets input from the line in, so I set up the codec for appropriate...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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but when I simulate it on quartus it works so perfectly.. I configured the codec for DSP mode with MSB available at the first negedge of the bclk.

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i have experience too when using DSP module then i got noise on DAC . My problem is resolved by synchronizing DACLRCK (i'm using slave mode) , but in my case, i'm using i2s format bit .

I think you should check again on Quartus, Do ADCLRCK clock have same phase with DACLRCK?

I think you should synchronize it so DACLRCK have delay as many as latency clock on your DSP module