Thread opened by request.

Quote Originally Posted by icemanxp300 View Post
Ok so I grabbed a "normal" board and did some pin traces and found out what the problem is. On my Cotton game pins 10(rom 2) and 11(rom1) or "E" was not right. On rom 1 pin 11 went to pin 8 on the hd74hcoop on rom 2 pin 10 went to pin 11 on the hd74hcoop. On a normal board "E" needs to go to b17.

B17 goes to pins 4 and 5 of hd74hcoop. Not sure if I needed to or not but I removed the hd74hcoop while I was playing around. I simply jumpered holes 4 and 11 and holes 5 and 8 on the empty hd74hcoop spot.

I hope I wrote that right lol. Basically all you need to know is that B17 on the cart needs wired to (E) on your rom(s).


Well as pointless as it seems to edit a post over 2 months later, hopefully someone looks?

On Page 10 post 143 and so on, Wal666 uses a board to make a PS4, anyone know if that board is compatible with MegaMan Wily Wars? The game plays but save does not work?
Sorry I never responded. I must have missed your post. The double posting rule pertains to short periods of time between posts. If no one seems to respond within a week or two, feel free to double post. Also feel free to PM me directly. I like to keep all discussions in this thread for others to find, but I may not see every post even if I would like to.

Really glad you got your Cotton cart working on your own, you must have learned a bit from that experience.

As for PS4, it sounds like you are using two different "types" of saving-boards. PS4 uses a large SRAM chip while the original Wily Wars uses a small EEPROM to save. These are not compatible with each other however, There is a patch for the Wily Wars ROM that changes it to use SRAM instead. This makes it compatible with SRAM type boards.