forum.pistar.uk

I have read where you can enable FLOW CONTROL on the pi UART by assigning some GPIO pins to it. Now I realize the MMDVM's don't make use of Flow Control, but I just wonder if by chance it is active on the serial UART when operating in Pi Star. I'm wanting to glue an FPGA in between the PI and the MMDVM to see if I can implement some type of buffer so that no bits are lost.

Thanks so much.
Dave
N5BOC

You are right. Offloading the work done by the STM32 into an FPGA would be the correct thing to do instead of gluing something in between them.

I don't believe that bits are lots between the Pi and the modem (be it USB or UART GPIO pins).
the BER or Loss that we see can be either decode issues, or network issues, is this what you were looking to fix ?