modem7
10k Member
Per the last few posts, issuing commands to the controller chip on the floppy controller can be done in a number of ways (even via DEBUG),Well I'll get back to this once I'm able to write something on the keyboard. It still needs some restauration.
What works and what doesn't work narrows down the circuitry to look at on the controller.
@Dallas_Green... but it lets you talk directly to the uPD765-based FDC (I assume that's what the portable uses)
The P8272A on your controller card will be functionally equivalent.