nesdev.org

I know some tools for SFC/SNES roms allow for 'byteswapping' to make a ROM work with E(E)PROMS. Is it possible to do the same thing for NES roms? How would I go about doing that? Whenever i try to remap pins, i just get a black screen. I am using the SST39SF020, so is it possible that the chip's spe...

I have not test it in a a cartridge but at one point I did have dumping working and everything was the same. I do not know what is causing the stuck glitch It does not make sense to me. I will look at it later. The verification on my chips is good, but do you think it could still be bad wiring rega...

I fixed the segmentation fault Thank you! I tested this and still get stuck while dumping I will try to fix it. Up to where it gets stuck, the original file and the new one seem to match. I would like to point out that I was able to fully dump 29c020 flash chips, just not SST39sf020 chips. Have you...

If possible, I would like to know how i would remap the pins using two sockets stacked on each other, to avoid snapping IC pins. Someone here http://blog.tynemouthsoftware.co.uk/2013/02/commodore-vic20-repair.html made a new kernal (sic) chip for his VIC-20, remapping pins with a 24 pin DIL header a...

It would have to be lots less for me to want yours. For all I know there could be something wrong with it and I don't want something for 25 dollars less that doesn't work; I would rather pay the extra $25 for something that does. If you suggest a lower price, I am in the market for one. :) (It would...

I still think it is a software issue and not a hardware issue. Also if the game took smaller flash just don't connect all address lines to the NES cart and you only have larger flash just don't connect some of the high address lines. Thanks, it's working it seems. I havent wired the chips in yet bu...

It's too bad i managed to destroy my toploader years ago. I haven't had time to start replacing every chip on the thing yet. :( http://i.imgur.com/d2OiDA7.jpg http://a.imageshack.us/img837/7343/dsc01772m.jpg I got it from someone claiming it was in good condition; i have since cleaned off the rust a...

Right now i'm testing my cart with a (hacked by me) copy of Earth Bound (zero). I read on this page: http://datacrystal.romhacking.net/wiki/EarthBound_Zero that there is 16 x 16kB PRG ROM and 32 x 8kb CHR ROM. are these then different sizes and do I need another chip (besides either 29c020 or sst39s...

And now, a dumb question:
If I don't have a dremel (i know I should), how would I cut the tracks properly?

About the flash dumper getting stuck I think you forgot to change how long the loops run for. I updated my programs both the avr and computer-side to detect the capacity of the flash chip based on the chip ID. Also I merged the reading capabilities to the writing program to read instead of write sp...

tokumaru wrote:Visual? This is the only one I'm aware of.

Thank you!

I managed to snap a lifted pin off of my CHR flash, so I am ordering more (and backups this time!) That really will help in the future, I think. And the flashing program seemed to work, nintendo8.

Does anyone know a good place to go for a visual illustration of how to modify a TSROM board for eeproms/eproms/flash chips? I already have sockets installed and want to modify the tracks on the PCB unless there is an easier way. I only have two sockets, and don't want to order anything else, so I d...

A7 goes to Q7 on the shift register that is connected to pin 2. A8 goes to Q0 on the shift register that is connected to pin 3 and so on. So here is the address mapping A7:A0 Q7:Q0 shift register pin 2 A15:A8 Q7:Q0 shift register pin 3 A7:16 Q1:Q0 shift register pin 4 note that the ':' symbol means...

SER (pin 14) is the actual serial data which I called the LSB middle and MSB. the LSB contains A7:A0 meaning that pins A7 thru A0 are connected to the flash chip and the 8bits come from the parallel output of the shift register. The MSB is pins A17(A18 for F040):A16 those get connected to the pins ...

The arduino uno r3 uses an atmega328p the atmega16u2 acts as a usb to serial converter so in others you would want to change it to atmega328p however I believe I already have it set to that and if fact make writeflash should already be able to program your arduino uno r3 assuming that is is at /dev...