This is a general use PIC32 comms UART handler.
A half duplex bus is assumed (receive something then transmit a response, so RS485 bus friendly, but its easy to adapt the code to make full duplex instead (tx and rx independently).
It automatically deals with variable packet length by including a length value in the packet. It also automatically adds simple check summing of the packet.
Get the files from our GitHub repository here.
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