4 Replies Latest reply on Apr 1, 2015 3:36 AM by @gmail.com

    Cant send a single byte through UART Dma mode !!!

    user_247378601

      Hi,

         

       

         

       

         

      I am using the UART DMA mode example which came through SDK installation.

         

      In this mode i want to send a single byte to FX3(Consumer) and  again the Fx3 will send back to the UART(Producer).

         

      Here i have registered a Callback for this UART interrupts.

         

      But its not at all coming inside the callback function.

         

      So i have disabled the callback for the UART.

         

       

         

      I have created a callback for DMA channel and in that callback for producer event i am commiting the buffer using commitbuffer API.

         

      Now the problem is if i gave a single byte the producer event is not occuring, after 32 bytes only its occuring.

         

      I want that for single byte.

         

      If anyone having any idea on this issue.

         

      help us. thanks in adavance.

         

       

         

       

         

      Regards,

         

      Shanthakumar