Schematic of a GM ALDL -> PC converter

[John Faubion]

>  You can't program a PC UART to 8192 baud, but 
>you can program it to 8228 using a divisor of 14, which is close enough.  

Actually why not change the XTAL to a 3.2768Mhz and use a divisor of 25?
With the UART's internal divisor of 16 and a programmable divisor of 25
would get 8192. Plus this is a standard crystal which costs about a dollar.
Dual port serial cards for the PC are around seven dollars now. Looks like
a cheap way to talk to it. Or I guess someone with a bit more EE skills
could probably whip up a circuit for it using that crystal, a UART, a
couple IC's and a few discretes to connect to a parallel port. Anyone with
the know how for this willing to take a shot. I'm willing to build it.

John Faubion
jfaubion at beaches.net