ah I found the problem I tried jumpering the write pin to ground instead of +5 looks like hooking pin 31 to VCC makes it work I doubt this will work with larger flash sizes though since hole 2 of the program is A18
fortunately not much uses 4 megabit roms.
Search found 6 matches
- Wed Nov 17, 2010 5:22 pm
- Forum: NES Hardware and Flash Equipment
- Topic: adapting a cart to flash.
- Replies: 4
- Views: 2258
- Mon Nov 15, 2010 8:23 pm
- Forum: NES Hardware and Flash Equipment
- Topic: adapting a cart to flash.
- Replies: 4
- Views: 2258
actually I have PMC flash chips the exact one is this
http://www.datasheetarchive.com/Pm29F00 ... sheet.html
I tried to match everything up based on the nes rom pinouts and got a partally working program with half the graphics ok and the other scrambled.
http://www.datasheetarchive.com/Pm29F00 ... sheet.html
I tried to match everything up based on the nes rom pinouts and got a partally working program with half the graphics ok and the other scrambled.
- Sat Nov 13, 2010 7:58 pm
- Forum: Reproduction
- Topic: What Famicom games do I need to make Blade Buster repro?
- Replies: 11
- Views: 5849
- Sat Nov 13, 2010 7:54 pm
- Forum: NES Hardware and Flash Equipment
- Topic: adapting a cart to flash.
- Replies: 4
- Views: 2258
adapting a cart to flash.
my programmer sucks.
I cannot reliably program eproms only flash.. and there is no way to add a power supply it's USB ONLY.
what differences would there be for a TSROM when using a 29f002t ?
I cannot reliably program eproms only flash.. and there is no way to add a power supply it's USB ONLY.
what differences would there be for a TSROM when using a 29f002t ?
- Wed Nov 10, 2010 5:17 pm
- Forum: Reproduction
- Topic: looking for info on patching a Just Breed cart EKROM
- Replies: 2
- Views: 2404
hmmm I'm having trouble I have only replaced the PRG so far but I should get the game to boot with corrupt graphics at least with the original CHR chip in place right? I've tried just a direct to the board without rewire (like some konami boards) and got just a purple screen tried wiring it as a TKr...
- Sat Nov 06, 2010 8:27 pm
- Forum: Reproduction
- Topic: looking for info on patching a Just Breed cart EKROM
- Replies: 2
- Views: 2404
looking for info on patching a Just Breed cart EKROM
I want to put patched translated roms in my Just Breed famicom cart but I'm not sure how to wire the cart to work with eproms(actually I have a single 27c040 and about a dozen pm29f002's which don't seem to work when wired like a 27c020)