nesdev.org

I added your findings to my MX29F1601 Arduino flasher, so it now can flash the complete NP cart without desoldering the flashroms, it's also alot faster than before. This allowed me to do a couple of tests and it seems that the only thing that boots without a menu are games/programs that are 512K in...

Could it be this? I am not sure. 8-bit SO 32/40 pin MASK ROM (GSU-1, GSU-2) GND - 5V GND - 5V A20 - 5V A21 - A22 A17 - 5V A18 - /OE A15 - A19 A12 - A14 A7 - A13 A6 - A8 A5 - A9 A4 - A11 A3 - A16 A2 - A10 A1 - /CE A0 - D7 D0 - D6 D1 - D5 D2 - D4 GND - D3 Source: nintendoallstars.w.interia.pl/romlab/s...

Never could get the Nintendo Power or even any SA-1 game to work on my Arduino cart reader, skaman got them to work though, must be some hardware issue on my side. So we'll have to wait for him.

As far as I understand it, the NP cart plugs into some cheat device like a Blaze xploder or Action Replay https://www.konsolenkost.de/images/produkte/cache/mi10/1016411-1016411-3-2.jpg and through that it plugs into the blue Bung flash linker. The cheat device is probably just used so he has better ...

"Within the menu, it does just restart the menu. But after selecting a game, it does restart the selected game. Only way to return to the menu seems to be switching power off/on?" It does exactly the same on my Super Famicom. Also when in the menu you can hold X and it shows you where the ...

I started with the 29F032 flashrom and wrote an Arduino Mega based programmer for that, then continued to the 29F1610 and 29L3211 and finally tried to apply what I learned to the NP's 29F1601. I'm a beginner when it comes to programming, hence working with Arduino. Yes the delay is also needed with ...

So I desoldered the two MX29F1601 flashroms out of my NP cart and wrote a programmer based on Arduino for them. It works but takes 4 hours because I am supposed to write 128 bytes at once but I only write one byte at a time. Because otherwise I get alot of unwritten bytes. So no special write comman...

WE is shared between the 3rd Flash and the SRAM, just double checked again to be sure.

Turns out MX1500 pin 29 is VCC

Thanks for your input, really appreciate it.

You're absolutly right about R11 and R12, R11 goes to the MegaChips' Pin 38.
MegaChips 96 is connected to the edge connectors reset pin.
Still can't find MegaChips pin 72 and 73.

Anyone here have the time to verify/cross-check the schematics I made? https://dl.dropboxusercontent.com/u/20912715/snes/nintendo_power_schematic.png Here are some pics of the cart: https://dl.dropboxusercontent.com/u/20912715/snes/nintendo_power_back.JPG https://dl.dropboxusercontent.com/u/20912715...

If you look at this link, it displays all the possible "configurations" of the mad chip: - http://www.dbwbp.com/index.php/13-electronic-projects/video-game-related/snes/16-super-nintendo-address-decoder-ic-mad-1-truth-table - http://problemkaputt.de/fullsnes.htm#snespinoutsmadchips Maybe i...

You download the zip file from the link I posted. Then go to https://oshpark.com/ Click on "get started now" then on "Select a file on your computer". Select the zip file you downloaded earlier. Wait a little until it says "Detected 2 layer board of 2.1x0.86 inches (53x22mm)...

Adapter: http://retrohacker.info/viewtopic.php?f=15&t=3