This doesn't directly apply, but I have had the f84 bit banging 250Kbps
at 4MHz. I didn't have to worry about recieve though.

Josh
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Louis Davis wrote:
>
> I need help with a PIC project that will convert standard RS232 serial data
> from a PC to a custom serial protocol.
> The custom serial protocol is: 1 start bit+ 16 data bits + 1 stop bit @
> 115200bps
> The protocol is asynchronous and only requires half duplex.  Basically the
> PC will send 16 bits of data then wait for a 16 bit response then send
> another 16 bits and so on.  The side that transmits the custom protocol uses
> 1 line for transmit and receive and then 3 other lines for handshaking, so
> that pin on the PIC would have to be set up for IN\OUT
> I figure the only way this can be done is with bit-banging.  I have a 16F84
> 10mhz  and a 16F84 20mhz.  Does anyone think this can be done reliably with
> the 10mhz? Can this be done with the 16F84 or do I need something bigger?
>
> Thanks,
> Louis

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