djrm wrote: Thu Feb 27, 2025 6:11 pm I'll report back here if I make any more progress.

I somehow missed this Feb post. Did you progress further?

Seems like potentially a great idea for experimenters who have already invested in some RC2014 boards.

Although, I haven't had a close look at the RC bus signals myself.

Awesome - ordered! :-)

Thank you! I'll get onto your order before the next courier run.


LOL, perhaps a Z-80 based MSX clone in the works?

It certainly does add to my motivation to get a Z80 based CPU up and running, finally.

Given that I've done a 6502 CreatiVision re-Creation, I think a ...

Ever since creating my existing TMS9918 / TMS992x VDP Display Card, I've thought that I'd also like to play with the TMS's more capable successors, the V9938 and V9958 VDP's. Also known as the MSX-Video Display Processors.

The V9938 also greatly expands on the TMS9918 families capabilities ...

I was disappointed to see that available address bus inputs to the prototype board included A15-A12 , these are not much use here and A11-A12 would have been more useful. but this had never been a problem before and probably will not be again.

All peripheral boards (including Prototype PLD ...

The memory map of ROM and RAM now matches the original AIM-65 but the I/O devices are squeezed into a 256 byte MECB I/O space. If I open this out to the full 4k space usd by the original board then I will not have to use amended roms for the system to work.

This is really interesting, and has ...

I'm interested to know what you did, did you have to use the new timer component?


I just updated all MCC components to "latest".

Then (like you), I removed:

//const struct TMR_INTERFACE *Timer = &TCA0_Interface;


But, instead of creating a Timer0 wrapper / instance, I simply changed to ...

I like the idea of not having to click endlessly in MCC while not being sure if I'm doing the right thing so having a project file is a good option for me.

I think if you can distribute the code which you are happy with which works with the current version then that is as much as you can do,

In ...

I have found that if the version of TCA set in the MCC Content Manager is greater than 6 then compilation needs a different method (as I showed in my first successful build), Version 7 is the latest. I changed this without loosing the contents of main. I think maybe when I upgraded melody that the ...

Edit, it is now possible to build the keyboard project using the files from Github however ...

Sorry, I just noticed your Edit. Unfortunately I don't get notification of msg edits (only new messages).


When the Generate button is clicked the existing main.c gets overwritten and needs to be ...

... Edit, it worked. I flashed the chip, removed the extra components. Now I can loginto my tiny PC with the MECB keyboard, yay.
Thanks for the help, David.

Fantastic to hear! My apologies for creating this painful experience!

So, from my side...

I first found a completely clean Windows 10 ...