MECB to RCbus bridge

[djrm]

One of my other retro microcontroller systems is based on the RC2014 with RCbus compatible cards. I was going to build some motorola cpu cards for my RCbus system but decided that MECB was more appropriate and, frankly with the DIN connectors, much better than the pins used on RC bus systems. However I have quite a few RCbus cards and want to be able to use them on my MECB system so I'm going to experiment to see if a simple bus conversion can be made to work - I expect it can.

The photo shows the start of this project, no wiring attempted yet with a small passive board connection the two busses together. The RCbus card shown is a VT82C42 PC keyboard decoder plugged into a SC207 bus extender. It would be nice to get a Z80 RomWbw working on the MECB too.

I'll report back here if I make any more progress.
Best regards, David.

[Editor]

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.

[djrm]

Hi Greg, No I haven't done any more on this but it should be straight forward (tm) I started with a mind to interface the PC keyboard controller but went down the route of using your keyboard and the SYS-IO PS/2 controller chip. I'll get around to finishing it one day as there are a few RC2014 cards I'd like to use on my 6x systems. I'd also like a MECB Z80/Z180 system one day with RomWBW and memory management but I'm in a rather deep rabbit hole with the AIM-65 stuff at present trying to get the C64 disk interface SD clone working. Best regards, David.