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OMAP-L138 has McBSP problem when ARM runs

EyalM
Prodigy 180 points
Other Parts Discussed in Thread: OMAPL138

Hi

We have a McBSP application working on OMAPL138 with sys/bios. The application is in loopback mode. The problem is we may have an interfere with the ARM.

When the DSP only is running it works fine without failure but when the ARM is available sometimes the data is wrong.

We think it is an EDMA configuration problem. Actually we dont understand the connections between HWI in cfg file and the EVENQ for the EDMA and the hwi for the MCBSP configuration.

Somebody can help us with that??

Thanks

Shon

  • 0
    TI__Guru* 84110 points

    Shon,

    [In the future, please post new questions to a new thread. It confuses things when there are multiple questions being asked and answered, and the original poster may get lost in the process.]

    Please add some information clarifying "sometimes the data is wrong".

    Does the ARM have anything to do with the EDMA or with the McBSP?

    Regards,
    RandyP