2019-08-28

The Z80 project is moving a little slower right now, basically held up on the main and I/O boards. I think I'm calling it the KZ80 now for lack of a better name [1].

The mainboard needs a final verification of the decoupling capacitor placement inside the 28-pin sockets. I don't foresee any problems, but it seems like holding off on ordering the boards until I can finalise that part of the verification is a good idea. I also want to be sure that I've done the reset circuit correctly, which requires (namely the MCP120 POR IC) that are expected to show up on Friday. Assuming that all shows up, the mainboard should be good to go. It means I have until then to come up with a visualiser for the address and data buses... which is doable - unless I get distracted by the RC2014.

Speaking of which, the RC2014 showed up yesterday. I've managed to get the dual clock module and the compact flash modules built. I looked around for CF cards on Amazon and eBay, and they're still something like $20 / card for 128M of storage!? I don't know what's up with that. The mention that CF cards present as IDE drives sounds interesting; I'm not sure if that's just how CP/M does it or what. I'm going to do some research and see if there's a good reason for me to use CF over SD for the KZ80.

[1]Two other names I floated around for it were the Delorean (it's underpowered and expensive for what it is) and Star Fury (because it's badass).

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