m_thompson
Veteran Member
We applied some Kapton tape to the gold fingers for 20 & 70 on the Cromemco 16FDC floppy controller. These signals are memory protect on the front panel and ground on the 16FDC so it inhibits the EXAMINE and DEPOSIT functions on the front panel. After the Kapton tape was applied the front panel worked normally. We can't see the contents of the RDOS boot ROM on the 16FDC. The chip is being selected, but it looks like the bus buffer chip for the data bus is not being enabled. I need to learn a little more about the S-100 bus signaling and then do some more debugging.