Search found 2 matches

by QuirkySquid
Thu Jun 07, 2018 12:39 pm
Forum: NES Hardware and Flash Equipment
Topic: Controlling 2A03 w/ Arduino
Replies: 6
Views: 4847

Re: Controlling 2A03 w/ Arduino

The MCU on your Arduino board will be acting as the 2A03's ROM and RAM. So you'll need to spoon-feed opcodes onto the eight data bus pins and react to what it outputs on M2 and a subset of the address lines. Most of these signals change at 1.8 MHz, one-twelfth of the input clock. The 2A03 is not a ...
by QuirkySquid
Thu Jun 07, 2018 11:37 am
Forum: NES Hardware and Flash Equipment
Topic: Controlling 2A03 w/ Arduino
Replies: 6
Views: 4847

Controlling 2A03 w/ Arduino

Hey all, I'm new to this forum, NES hardware, and really to electronics in general. I mostly work on the software side of things. I'm a musician, a coder, and a fan of classic chiptune, so I thought it would be really neat to try and build a synthesizer using an actual RP2A03. I ordered a broken Fam...