Alex Freed wrote:
The problem with the available schematics is that it doesn't show what signal controls the address buffers U12-U14. Clearly the card can't always drive the bus. This may well not be the only error. A high-res picture of the back of the card may help a lot.
Also, there is a little piggyback board that's required to run OS-9 on The Mill. Would be nice to pickup that logic in the FPGA.
STeve