daglem / redip-cia Goto Github PK
View Code? Open in Web Editor NEWMOS 6520 PIA / MOS 6522 VIA / MOS 6526/8520/8521 CIA replacement
License: CERN Open Hardware Licence Version 2 - Strongly Reciprocal
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commodore-benchredip-cia's Issues
Where is the gateware source?
I can only see the pin definitions, but seems that all actual verilog is missing.
Question about IO and crystal
Hi Dag. Nice project!
I wonder, I designed a similar board with same fpga as the icebreaker dev board iCE40UP5k, I had trouble figuring out if the RGB IOs are configurable for IO? Maybe it is different for the LP1K. I had trouble getting enough IO for the CIA. Also, will it load the flash without a crystal?
Just wondering. As you may know I made the VHDL6526, tested it with a custom cartridge that I programmed, but never made a PCB for it.
If you have tested this design, I'd like to try myself and use my cartridge to check it.
Hans
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