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EDMA 3 on EVM 6474 , why CHannel 20 dosent work ???

Mugiwara
Prodigy 70 points

 

 

  I try to make EDMA write on LSU's registers ,to initiate a transfert >4Kbyte . the probleme is  that the channel 20 , is not working .

the 15 first channels are working , i triger them manually  , but all the channel which have a nuber >15 don't work.

i tryed to change the DRAE , but it not working.

 

 

please i need help.

  • 0
    TI__Guru* 84110 points

    What version of CCS are you using? Please post some of the EDMA initialization and triggering code you are using. What example code did you start from? Please confirm that this is on the EVM6474.

    And please confirm that your code works to transfer >4KB if you use DMA channels 0-15.

    All 64 channels should work, but there are a lot of things that can go wrong. Since you suspected DRAE and were not able to change DRAE, I will also suspect that DRAE is where you problem comes from.