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omapl138 logicpd

Mohammed Hussain
Expert 1500 points

Other Parts Discussed in Thread: OMAPL138

Hai,

I am Using OMAPL138 LOGICPD board as i am feeding input through line in same output without any change i am getting at output what may be the issue 

is their any issue with CODEC part 

  • 0
    TI__Mastermind 43955 points

    Hi Mohammed,

    You may have to provide details like name of the TI Software package you use, it's version and name of the example etc.

    As well as, you may have to brief about what input you feed through? and what is the expected output etc.

  • 0 in reply to Shankari G
    Expert 1500 points

    i am using CCS V6 i am giving input as music Signal via 3.5mm audio jack cable (AUX Cable) i am expecting simple loop back but as soon as i am switching music on i am hearing at output  without debugging program and even after debuging when i press halt button it should stop playing music but its keep on playing 

    is their issue in CODEC as i already checked other programmers like LED it working fine 

    Please suggest me what is actual issue 

  • 0 in reply to Mohammed Hussain
    TI__Guru** 116950 points
    Mohammed,

    Can you specify what example are you running to test the audio loopback. Is there a CPU based memcpy function doing the copy from inout to output buffers. Can you set a break point at the mem copy function where the input buffers is copied to the output buffer.

    I am wondering if this is occuring due to EDMA moving data from Input FIFO into output FIFO without interference from the CPU so even when the CPU Is halted the EDMA events are being fired and the data moment continues.

    Regards,
    Rahul