Like most micro's, the baud rate control is created using internal fixed counts from the clock. Even if you slow up the clock, you may not hit the right number of counts to get to 300 baud, and it will make the entire system slow.
The easiest solution is to use a hardware patch, (and its pretty cheap too), using a SOIC PIC16F54 microcontroller to take the 300 baud and boost it up to the minimum 1200 baud for your system.
The PIC16F54 has 12 I/O lines; more than enough for all the handshale lines if you are using them.
The chip is about 50 cents, small, and easyto program. If this sounds like something you could live with, I'll send yo the software for 300 baud.
Steve Apelman, Macro Electronics Corp.
macrocorp@optonline.net
