2 Replies Latest reply on Jul 13, 2017 9:21 AM by david.vanhorn_2575966

    DMA debugging

    david.vanhorn_2575966

      I have an analog front end working, feeding a DMA transfer into a filter block.  I never see a DMA request coming out of the filter block.

         

      I have pins attached to the SAR EOC which is also died to the DMA DRQ, and to the filter DMA_REQ_A.

         

      I have activity on the SAR EOC, but nothing on the DMA_REQ_A pin.

         

      The peripherals are started, and I used the DMA wizard to generate the code for the DMA.

         

      How can I figure out if it's the DMA that's not happening, or the filter?