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.
Latest articles
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...
writing merged USB comm code
Now that I have USB receive working in the main PC code, its time to merge the USB transmit(and receive for commands) into the main SX code. I have two pseudo-code versions written. 1> First version uses the ISR to...
new book
I recently received “On the Edge: the Spectacular Rise and Fall of Commodore” and have read about half of the book so far. Very interesting read. It’s fun to read about how the various Commodores...
first two bytes of checksum bad
Despite the data being received 100% correct, the data checksum fails in certain cases. It’s always the first two bytes of the 4-byte, 32-bit checksum that are wrong. The last two are always right. What does...
updated code and comments
Here’s a current version of the code. I cleaned up my code tonight, added a bunch of comments, and tried to explain and document what I’m doing and the logic behind it. The current code is so much better...
