3 Replies Latest reply on Dec 20, 2016 9:58 AM by gareth_powell_2034131

    Possible to switch off "Internal" interrupt & just o/p  using h/w buf?

    gareth_powell_2034131

      Hi,

         

         Apologies if the solution is elsewhere but my search-fu is in failure mode. I have a UART using the internal interrupt mode (set in the schematic) due to using a large-ish memory buffer. My problem is trying to o/p a debug dump on a HardFault, and since the UART interrupts are of lower priority they don't run and I see no chars o/p.

         

      Is it possible to reconfigure at runtime from internal interrupt buffer to just use the basic hardware (~16 char) fifo? I can't change the configuration, and my first alternative is to tweak the return address from the handler and do the dump stuff in std mode.

         

       

         

      All the best,

         

      Gareth