Hi all,

Has anyone here created a second software UART on the PIC16C73.
I would like to have 2 ports simultaneously operating.
The requirement only needs 1/2 duplex but I want to be able to receive 19200
Baud via the on-board hardware UART simultaneously to 9600 Baud on the Bit
bashed port.

I have written a small app in C that provides a interrupt driven software
UART.
It detects falling edge of Start bit by setting RB.0 up as External
Interrupt and when edge is detected, a state machine runs that validates the
Start bit 1/2 a period after edge falling and then uses Timer1 to read the
next 8 data bits and stop bit.

If someone has some code already written that does this, it will save me
"reinventing the wheel" and also may offer a more elegant and robust
solution.

Thanks in advance.

Regards
David Huisman

Please only reply if you can offer a solution based on the above
requirements.