I'm considering using the UART in a PIC for a simple master/slave
network between two PICs. I'm hoping to send data half-duplex on one
wire. I'm thinking of just tying the Tx and Rx pins together. Normally
the TRIS bit on the transmit line would be high. When a PIC needs to
transmit, I'd set the TRIS low, send the data, then put TRIS high again.
Will that work? Does a high TRIS float the USART transmit pin?

        Thanks!

Harold



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