SAM4L-EK audio bitstream DAC example doesn't work

AT91SAM9 Evaluation Boards

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jaapwansink
Posts: 4
Joined: Wed Jul 31, 2013 4:26 pm

SAM4L-EK audio bitstream DAC example doesn't work

Mon Apr 14, 2014 2:28 pm

Hello,

I tried to get the ABDACB audio bitstream example to work on my SAM4L-ek. I loaded the code to the kit and closed jumper J105.2 to J105.3. I also configured a terminal application with hyperterminal.
When I start the MCU I get the info and the menu on hyperterminal, I also can start and stop to output the audio.

However I don't get any signal out of the jack connector.

Does anybody know if I forgot something, or what could be the problem?

Thanks in advance!
sgjohnson
Posts: 1
Joined: Wed Sep 10, 2014 5:10 pm

Re: SAM4L-EK audio bitstream DAC example doesn't work

Wed Sep 10, 2014 5:17 pm

Did you ever find a resolution to this issue? I'm experiencing the same thing. The comments in the project source code say the dev kit requires hardware rework, but I'm not sure what rework is required.

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