I am still trying to build a FFMQ cartridge, now I am using a shvc-1a0n board, without a sram and mad 1.
before trying to put the flash chip on this board, I did put the rom chip from a NBA 97 cartridge, it work just fine, I did try with a FIFA 97 rom chip and it works too (both of this game ''lorom'' use 64k sram and mad 1), then I think that I don't need sram or mad 1 if I just want to play a game, without saving.
is that correct?
I am using that board because I haven't find SHVC-1A3B board yet.
have anyone ever used an am29f040b flash ''plcc 32'' (the little square one) to build a snes cartrdge?
the pinouts that doesn't match from the am29f040b flash and snes mask rom are:
pin snes mask rom flash chip
1 A17 A18
2 A18 A16
24 A16 OE#
30 A19 A17
31 /OE WE#
I connected all the same pins together and left A19 from mask rom disconnected, I did try connecting WE# to VCC or /OE.
some people told me to connect WE# to VCC and others to /OE, but where should really go WE#?
I found a webside where they use the same chip (am29f040b plcc32) to build a gameboy cartridge
http://www.reinerziegler.de/readplus.htm they connected WE# to audio in and a pullup resistor of 47kohm between WE# and VCC.
should I try to connect a pullup resistor between WE# and VCC?
I used HEX EDITOR NEO to cut the first 512 bytes header (offser 0 to 1f0) then the first line looked like this:
4ad1 13ab d55a d5c2 6773 81cf 964b abec
is that ok?
I found that if I am using a board like SHVC-1A3B I should cut the track between A21 from snes mask rom and pin 13 of mad 1 and connect A19 from snes mask rom to pin 13 of mad 1.
is that corect?
I really want to get this thing working, I have been trying like a month.
thank for any help