Retro Sound Tech - Programming the SN76489 Sound Generator

In this video I do some programming with the SN76489 sound generator IC (and a bit of a channel update)

The SN76489 Manual http://www.vgmpf.com/Wiki/images/7/78/SN76489AN_-_Manual.pdf

The code is all up at https://github.com/thaaraak/SN76489-Tester

A nice article on interfacing the SN76489 with Arduino http://danceswithferrets.org/geekblog/?p=93

Here's where I got the ICs from (not affiliated in any way) https://www.ebay.com/itm/10PCS-SN76489AN-DIP16-Digital-complex-sound-generator-D6/301723646982?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649

Sabar Multimedia (Laser Cutter youtube channel) https://www.youtube.com/user/SarbarMultimedia

0:00 Intro and Channel Update 1:45 Some history and functional description 2:40 Pinout 3:54 The test circuit 7:36 Simple Chord Demo (three sound channels active) 9:00 Programming Tones 10:12 How to derive the data bits from desired frequency 11:41 Code walkthrough for Tones 13:55 Playing a simple scale 14:30 Code for the Chords 15:45 The attenuator 16:49 The output on the oscilloscope 19:27 The Noise Generator ... https://www.youtube.com/watch?v=D0wh5Cyvj8E