Interesting 6502 FPGA implementation
Posted: Tue Oct 26, 2021 9:05 am
This has nothing to do with the MiSTer, but it is interesting nonetheless
There is a 6502 FPGA implementation that comes in a pin compatible format so that can be used instead of a regular 40 pin 6502.
http://www.e-basteln.de/computing/65f02/65f02/
This implementation uses a Spartan FPGA and utilises the 64 KB Block-RAM of the FPGA. The CPU works at 100 MHz and as the RAM is inside the FPGA the CPU communicates with the RAM at full speed. In theory it is possible to put this "chip" in a normal 6502 socket and get it work. This already works for some machines (mostly chess computers and Apple and some Commodore machines). With further adjustments it would be possible to get this thing work also on other 6502 based computers.
Maybe this is interesting for some other users. Until today I wasn't aware of this project.
There is a 6502 FPGA implementation that comes in a pin compatible format so that can be used instead of a regular 40 pin 6502.
http://www.e-basteln.de/computing/65f02/65f02/
This implementation uses a Spartan FPGA and utilises the 64 KB Block-RAM of the FPGA. The CPU works at 100 MHz and as the RAM is inside the FPGA the CPU communicates with the RAM at full speed. In theory it is possible to put this "chip" in a normal 6502 socket and get it work. This already works for some machines (mostly chess computers and Apple and some Commodore machines). With further adjustments it would be possible to get this thing work also on other 6502 based computers.
Maybe this is interesting for some other users. Until today I wasn't aware of this project.