My plan was to use my mini staycation to clean and organize. Hasn't been going well because I keep coming across forgotten things I want to play with. One of those things is a Z80 "softcard". Popped a CP/M image and kermit on my SDfloppy II and it fired right up. I was soon reminded of the reason I never got much use out of it. It can't seem to deal with anything faster then 300baud on the serial port with out dropping bits. 🤔
@junkman I had the same issue with my Apple IIe until I figured out I had a dip switch incorrect. Something to do with hardware interrupts.
@adamd I was playing with those setting and I have the SSerial card set to pass interrupts. If I set the softcard to respect them the system crashes. Under ProDOS or dos3.3 it works fine at higher bauds. One thing I noticed is my copy of CPM is by "Datasoft" not Microsoft. I am going to try and hunt down the official MS version of CP/M. Maybe there is something in that BOIS that helps with the timing 🤔
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko