Music Demo
I’m very pleased to say that after a few false starts, and lots of slow plodding progress, I finally have an audio demo to show off! The AY-3-8913 and related interface circuitry have been integrated into BMOW, and it works flawlessly. I’ve routed the analog voltages for the three voices to an off-board mixer/amplifier circuit, which is currently on a protoboard. Then I grabbed some old chiptunes from an AY emulator, deciphered the basics of the emulator file format, and shoved the resulting raw register data into the AY at 50Hz. This is the result.
The video demos a three minute chiptune, which just barely squeezed into 64K. It also shows off my desk workspace. That’s the PC monitor on the right displaying the BMOW bootloader UI, and the BMOW system monitor on the left. Keep your eyes peeled for the logic analyzer, Arduinos, and some other goodies mentioned in long-ago BMOW posts too.
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Excellent! I’ve procrastinated on my project for TOO long now. I’m going to be ordering some 16-1 line multiplexers today rather than beginning work with doubled up 8-1’s fed through 2-1’s. Should make things much easier, and thus, easier to set my mind to working on. 😉
Sweet! That is the coolest homemade project I have ever seen! Keep up the good work!
Dude this thing is awesome. This is so awesome. Kudos to you.