A new version of the CPU PCB with provision for a 65C22 VIA

I had wanted to update the CPU PCB for some time and thought now would be good to add some useful I/O in the form of a VIA @$9000. The new black PCBs (version 6.0) are here and have been tested, and I'm pleased to say all is well.

The purist OSI/UK101 enthusiasts will not forgive me, but I have built my new system without the Floppy Disk I/F completely. In it's place

I have attached an SDCard Module to the 65C22. As far as my Advanced DOS is concerned, it still thinks there is a floppy I/F connected and talks to the SDCard as if a Gotek was connected.

It requires a different EEPROM, but that allows the system to load images to each of the four virtual drives, and list the disk images available.

If you are interested in this, or anything on my site, please contact me at paul.bartlett@btopenworld.com