charcole / C64Tape

Device for loading .tap files from SD card on a C64
The Unlicense
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Provide a minimum spec microcontroller recommendation #1

Closed sajattack closed 6 years ago

sajattack commented 6 years ago

Hi there, I'm wondering what the minimum speed microcontroller would be. Would a 20MHz ATMEGA328 work?

charcole commented 6 years ago

I suspect so but I haven't tested it with anything other than the teensy, sorry. If you try it let me know and I can add it to the README.

sajattack commented 6 years ago

Ok, and 32K flash should be plenty because we have 9K of source code. Maybe 2K of RAM isn't enough though?

charcole commented 6 years ago

Most of the data is stored in an external 128Kb SRAM so shouldn't need too much internal RAM. The LZ compression scheme needs a 1Kb window (stored in internal RAM) but there's not much more than that so 2K of RAM might be enough.

sajattack commented 6 years ago

I suppose I might as well just use the Tapuino Reloaded rather than try to roll something with this.