Tach,
gerade bei hackaday gefunden:
LINK
This is an universal C64 cartridge, with an USB port for uploading CRT files from a PC and for fast turnaround time when developing assembler programs for the C64 on a PC, work-in-progress at the moment. On the board is a 128 kByte SRAM and a CPLD, which can be programmed to emulate any cartridge type (but not the ones with DMA access, because resource usage would be a problem to implement e.g. CP/M). A small microcontroller, which I've used in my C64 joystick adapter project, receives the CRT files from the PC, configures the CPLD and writes the SRAM. A 16 Mbit flash is integrated for storing up to 31 cartridges with 64 kByte for each (some storage is needed for meta-information about the cartridge type, so it is not 32) in standalone mode without a PC.