Building a 32mbit flash cart for the C3 Programmer v1.0118 ---------------------------------------------------------- Here's the wiring diagram for putting a AMD AM29F032B 32mbit flash ROM into a GameBoy Color cart. You can get a AM29F032B-xxEx (x = don't care) from http://www.marshall.com for about US$34 + shipping. I recommend using a Zelda DX cart as it is one of the few non-Japanese carts that contains 32k bytes of cart RAM. Game & Watch Gallery 2 or Quest for Camelot can be used but they only have 8k bytes of cart RAM. To program the finished cart you need ReadPlus V3.25 or later. Finished 32mbit cart: http://www.devrs.com/gb/files/32mbit.jpg MBC5 Pinouts: http://www.devrs.com/gb/files/mbc5.gif 23C16120 Pinouts: http://www.devrs.com/gb/files/23c64000.gif LH537 Pinouts: http://www.devrs.com/gb/files/23c64000.gif LH538 Pinouts: http://www.devrs.com/gb/files/lh534.gif Published GBC carts: http://www.devrs.com/gb/files/gbcmbc.txt AM29F032B-xxEx (x = don't care) | | SEC KM23C16120 ROM (Zelda DX for GBC) | Sharp LH537 ROM | | Pin Pin 1 2 2 3 3 34 4 35 5 36 6 37 7 38 8 39 9 12 10 23 12 Cart Pin 30 13 40 14 41 15 42 16 4 17 5 18 6 19 7 20 8 21 9 22 10 23 11 24 31 25 15 26 17 27 19 28 21 29 13 30 32 31 23 32 24 33 26 34 28 35 30 37 14 38 Cart pin 3 39 44 40 43 AM29F032B-xxEx (x = don't care) | | Sharp LH538 ROM | | Pin Pin 1 1 2 31 3 30 4 2 5 3 6 29 7 28 8 4 9 22 10 32 12 Cart Pin 30 13 25 14 23 15 26 16 27 17 5 18 6 19 7 20 8 21 9 22 10 23 11 24 12 25 13 26 14 27 15 28 17 29 16 30 16 31 32 32 18 33 19 34 20 35 21 37 24 38 Cart pin 3 39 MBC5-RA21 40 MBC5-RA20