All ‹ I gave up on the MSDOS board/8086 CPU for a while and assembled the Serial IO board (V2) that I had in stock and tried to get it working with the Z80 board (V1) and the SMB (V1) that I have using the standard-issue monitor program (v4.8). I don¹t usually use the SMB but it seems to be needed for the IOBYTE to force console I/O to the SCC. Like with the problems I had with the MSDOS board, this configuration also exhibits ³input anomalies². In this case, I see only output ‹ no input. I can definitely ³see² characters coming through the interface (using my protocol analyzer), but nothing on the screen.
I wrote a small loop-back program to run under my alternative monitor program (one based on Dave Dunfield¹s MON85) with the Z80 board and the Serial I/O board. The SIO board passes the loopback. So, there must be a configuration or other issue with the v4.8 monitor that I¹m not seeing. Does anyone have a working combination of boards using the SIO and N8-S100 Monitor and can tell me how to force the console input and output to the SIO without needing the SMB? Maybe I¹m missing a compilation switch somewhere. Thanks! Rich -- Rich Cini Collector of Classic Computers Build Master and lead engineer, Altair32 Emulator http://www.classiccmp.org/cini http://www.classiccmp.org/altair32 -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
