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To be clear CP/M once running only used one of the possible 4 ram banks?? I ask as then I don't have to search trough the code to understand if it does and how. Reason I ask Is I have a version of a

NOTE: I'm not a winders user, I use Linux Ubuntu or Mint both derived off the Debian tree. So to run windows code I use Wine (windows emulation) and generally V7 winders programs are compatible with

Hi Allison, I just got back home from a trip to VCF-East in New Jersey, and then a week visiting family in Michigan (over 3000 miles of driving -- yech). I'm still catching up on emails while I was

Hi Paul, In order to prepare a new 2GB uSD card to work with SIO, you need to partition it correctly. I couldn't figure out how to do it from scratch. So I copied the Partition Table from the

It never worked for me either (Windows). Paul

Anyone have a clue on CPM-DI-2.exe? that's disk explorer a winders program.... Linux wine and Dosbox find it unexecutable.? I run? a lot of windows and dos programs but this one appears broken. I

Disk A though D are fat 16 container files but there content is a CP/M disk with CP/M formatted directory and applications. That means only a utility on the PC that understands CP/M file format (disk

Hi Paul, According to the Z80MC-2017 manual on page 20, "On a Cold or Hard Reset, the system will look for, and if found automatically load and execute a file called “Z80MC_GO.HEX” from the SD

see Formatting the uSD at thread starting at /g/Z80MC/message/330 Yes, it fat16. Bigboot is in files /g/Z80MC/files/Z80MC-BIGBOOT.zip I don't have a list andy for

HI all, I have mislaid the uSD card for my Z80MC board. Do I just download Z80MC Bigfoot.zip from the files section and save it on a uSD card? I recall something about FAT16? Help! Paul

The answer is yes.? But not the way you want to do it. The keyboard and display is part of the issue and the other part is that the rom that runs that is in that space.? The two are linked and

It means if you are using the monitor to load at 0000, you can't, rom is there. also 0000 is the start address for the eprom so it will bark at you. The rom has to be there to run and communicate

Thank you Allison for your explanation and patience. I turn on the CPU Card+SIO+FP combination, wait for loading from SD with message FL 0030 Then F+E soft reset to stop PC from moving, I think it is

Also read and understand ZMCv15 which is about the erom contect monitor and Basic. How register are used is in there and also the memory mapping bits.? AS Z80 code its loaded with good examples.?

Depends from CP/M, yes. From basic in Eprom, no. Keep in mind when you do ram banking your changing the active memory map and stuff may disappear or end up in the wrong place. The memory map is not

Hello, Is it possible to run a program from Z80 SIO RAM? With SIO installed and RAM Bank 0 selected, I can type a short program starting #8000 (CPU RAM) then point PC to #8000 and execute with no

Lee, Even with NMOS 8250 and the few TTL pieces the total power is quite small and a battery plus 5V SMP regulator will produce very long run times before battery goes too low. Haven't measured it

I've been travelling (to VCF-East) and so have missed the start of this thread. But in general... The Z80MC CPU board can be run all by itself. It's all CMOS, and draws so little current that I can

Since most of the boards and parts are CMOS running the whole thing off a battery and switch mode regulator (for power conversion efficiency) would be easiest. For mine that means replacing the 8250

Thanks Allison and Rich for your responses and guidance. I have more learning to do until I can figure out how to replace the RAM with NVRAM on the CPU board, if ever practical. In the meantime, I