Table of Contents
X688 Modified for CP/M68K
Introduction
With an engineering change that swaps the RAM with EPROM memory locations, X688 can run CP/M68K. Please see this page for the description of the original X688
Features
- P90CE201 running at 22MHz
- 512K RAM
- 512K EPROM
- Switchable RAM & EPROM address map
Design Information
Gerber photoplot (this is the original X688 without engineering change)
Software
S Record file loader with EhBasic and CP/M68K
Flash programming file including X688Load, EhBasic, CPM68K BIOS/CCP/BDOS, and selected CP/M system files. The name of the actual EPROM programming file is x688_v1_2_EhBasic_CPM68k.bin
EhBasic for X688 with engineering change
Game of Life on X688 with engineering change. This requires a 128×64 OLED display. See this YouTube video
Manuals
P90CE201 Data sheet