... returning to 80's computing
There are errors on the silk screen. The pluss sign on RX and TX LEDs is in the wrong position, + (5V) is in the lower position. I have also changed my mind regarding the resistor values for R8 and R9, I have changed them to 330ohm.
This module perform 3 functions;
1) serial interface
2) bus clock
3) CF drive storage
- any of the functions may or may not be enabled.
This module is intended as a companion board to Steve Cousins SC108 CPU and memory board (but works also with SC114 SBC). These two modules will form a complete kit with 64k RAM and CF storage, running CP/M fully.
An added bonus, with this module the speed on SC108 can be increased to any speed up to 24Mhz.
Small Computer Central - SC108
Recommended setup for a complete CP/M computer:
• 61c The missing Module (Serial, Clock and Storage)
• SC108 Z80 CPU and Memory Module
• SC116 3-slot backplane
optional: VGA Serial Terminal Kit with USB