2009-03-17 00:26:43     BF548 EZ-Kit Audio is very noisy

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2009-03-17 00:26:43     BF548 EZ-Kit Audio is very noisy

John Joseph (INDIA)

Message: 71060   

 

Hi,

 

I tried playing a wave file on BF548 EZ-Kit with the 'play' utility and found that the audio output is at times very noisy.

 

Source used for building the image is release 2008R1.5

 

Kernel Build Configuration: All default settings except one change. "DMA has priority over core for ext. accesses" has been enabled.

 

I tried the same on multiple BF548 EZ-Kits and the issue is there on all.

 

Is there any additional kernel configuration changes required?

 

- John

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2009-03-17 00:30:59     Re: BF548 EZ-Kit Audio is very noisy

Robin Getz (UNITED STATES)

Message: 71061   

 

John:

 

There were some fixes we made to the branch, (not in the tarball) with respect to audio.

 

Do a checkout of the 2008R1 branch.

 

-Robin

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