PROLOGUE---FORUM---ROMLAB---MP3---GALLERY---COLLECTION---OTHER---LINKS---EMAIL---MAIN
MODIFI PRG-ROM (EXAMPLE)
Pin /CE in PRG-ROM is connected to memory controller or sometimes to GND
CART MODIFI EXAMPLES:
MODIFI CHR-ROM (EXAMPLE)
Pin #02 in CHR-ROM is connected to cart connector pin #21 in NES or pin #17 in FAMICOM (CHR /RD)
Pin #31 in CHR-ROM is connected to cart connector pin #65 in NES or pin #56 in FAMICOM (CHR /A13)
UNROM carts modifi only to 128KB (A16) because this mapper work only with this size of ROM's
AOROM - only 256KB
ANROM - only 128KB
MAKING NROM/CNROM CART:
If you want make only NROM (mapper 0) and CNROM eprom-cart you don't need modifi original cart - only need desolder ROM and solder 28pin socket on cart and install simple V/H switch (this cart works with 27C64,27C128,27C256 eproms (also 2764,27128,27256) and 29F256 flash memories)
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