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Percom SBC/9 6809 CPU board.

rwcooper

Member
Joined
Jan 17, 2023
Messages
23
Hi, I have a SWTPC 6800 that I updated to a 6809 (decades ago) using a Percom SBC/9. The documentation I have found doesn't seem to match my board. The memory map shows 2K of EPROM starting at F800, whereas my board has 4K of EPROM starting at F000. There are other differences as well. If anyone can give me any information on this board I'd greatly appreciate it.
 
Hi, I have a SWTPC 6800 that I updated to a 6809 (decades ago) using a Percom SBC/9. The documentation I have found doesn't seem to match my board. The memory map shows 2K of EPROM starting at F800, whereas my board has 4K of EPROM starting at F000. There are other differences as well. If anyone can give me any information on this board I'd greatly appreciate it.
After a bit of thought and fiddling around a bit I think I have the correct documentation for my board. How do I close this post as solved?
 
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