2 Replies Latest reply on Jun 9, 2012 7:22 AM by userc_39074

    DMA channel abort/reset/destroy go hung-up




      I'm using GPIF-II and Bulk-IN transfer with auto-type DMA, infinite size, like this:


      CyU3PDmaChannelCreate (&DmaChannel, CY_U3P_DMA_TYPE_AUTO, &DMACfg);


      CyU3PDmaChannelSetXfer(&DmaChannel, 0);


      Then, when I stop DMA with CyU3PDmaChannelAbort(), CyU3PDmaChannelReset(), or CyU3PDmaChannelDestroy(),


      sometimes these APIs hung up, not return from function.


      (It occurs in SuperSpeed only, I have looked...)




      How can I stop DMA safely?