#cpczero — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #cpczero, aggregated by home.social.
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Old school DRAMs have a lot of timing requirements. I’ve been validating output from the #CPCZERO sequencer prototype against them - and everything checks out 🙂
Comments in my notes are where the timings depend on other components, such as the multiplexers.
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The first stage of my CPC ZERO build - a hypothetical 6502 based Amstrad CPC taking inspiration from the prototype 6502 board and the final Z80 based CPC464.
I'm using period appropriate hardware, wire wrapping the build, and solving design challenges the way they had to in the eighties.
In this zero-th part I state my design goals, choose a build method and build out the CPU and ROM.
https://bread80.com/2024/11/01/cpc-zero-part-0-intro-cpu-and-rom/