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[C-One] [FPGA-64]


C-One core development


My original FPGA-64 project didn't go unnoticed. The story started when Jens asked me if I would like to port my FPGA64 project to the C-One board. Initially I wasn't really motivated as it worked correctly on a Xilinx Spartan-3 kit and I didn't have any C-One board myself. We discussed the options and Jens offered to send me a C-One board so I could do the port myself. The original plan was to focus on using the 65816 as it is shipped with all the boards.

Things always run differently as expected...
My latest cores:

/zips/fpga64_025.zip (20080203) FPGA-64: Cycle-Exact Commodore64 PAL/NTSC core


Currently I'm the owner of the 'cone_cores' yahoo mailing list at http://tech.groups.yahoo.com/group/cone_cores
You are welcome there to get help with developing own cores for the C-One. Report bugs discovered in the available cores. Or discuss technical details about emulating old computers in FPGAs.

For more general questions about the C-One or chatting with other owners you should visit http://tech.groups.yahoo.com/group/CommodoreOne

To see a complete overview of available cores visit the official download site at: http://c64upgra.de/c-one


Howto rewire cartridge port

howto rewire BA signal
First C-One example /zips/fpga_diamonds_001.zip
fpga_diamonds_001_screenshot

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"/c_one" is last updated on Sun Feb 3 22:56:22 2008