imho, fix your protocol on the transmit side so it throttles data after
certain characters. Terminal driver code has been doing this since
teletypes ruled the earth. Sending CTS to the computer becomes a problem
because the 16550 has FIFOs that are 16+1 (for the THR) long. You probably
can't store 17 bytes in the PIC. If you can, then do. Else tell users to
go into control panel->serial->settings (advanced I think) and set the Tx
FIFO threshold low for that port. That and CTS will probably fix it, you
still need a 2 deep FIFO on the PIC.

LCDs are controlled SO much better from the parallel port...

Peter

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