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USB audio framework on EZDSP C5515

Prodigy 20 points

Replies: 5

Views: 4154

Hello,

I tried to install the new USB audio framework example on the EZDSP C5515 v2, but I cannot hear the output sound.

On each trial, I can :
- connect USB audio device either on linux or windows
- Hear pops on volume up/down
- see FFT on the small screen
- see data through I2S bus with an oscilloscope

The demo example of Spectrum is working properly (I can hear the sine waves).

I tried :
- precompiled EZDSP example of 1.51.00.04 (both load by ccs or written in the NOR flash)
- recompiled original example of 1.51.00.03 (also both way to load)
- modified example to follow I2C configuration of AIC chip in Spectrum example

Do you have any clue on what is going on ?

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