has anyone ever managed to swap the eeprom in a N64 cart with a newly programmed one? I't be cool to be able to convert jap carts to english, the artwork is cooler and the carts are much cheaper. thanks
The Roms don't work like any you can program. Would need some sort of mcu/cpld/etc in addition to a flash chip.
I can't find my notes right now, but I remember that it's quite unlike any other sort of ROM I've ever seen. There is a 16 bit multiplexed address/data bus, and the start address is clocked out in two sections, with some control lines telling the chip which is which - once the address has been latched, the ROM then clocks out the word at the addressed location, and each subsequent cycle outputs the word from the next location. Effectively, it's a burst-mode ROM chip. The chips also have internal decode logic, so they only respond to the correct addresses.
