So I finally caught a pulse, on the same pin. They were just happening quickly and irregularly and so catching on the scope was tough.
Archive - February 2006
working on the floppy interface
Well I’m now inline with a data tap, so I have access to all 25 pins on the floppy interface between the amiga and the floppy drive. I used to attach to the DB23 on the pass-thru port of the floppy drive, but I...
Commands A and B implemented and working
Ok. I got two commands A and B implemented and working. Command B from the PC instructs the SX to enable interrupts, and get ready to receive a track into fram. This command will eventually be expanded to actually...
USB uart send and receive
Good news, good news. After banging my head on the same problem for the last three hours, I’ve finally made some more progress. Using option #2 from the previous post, I’ve written two non-isr based software...