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I was wondering, when using a 32kB eprom on an SKROM board, where there are inputs on MMC1 for chrA15 and chrA16, the eprom has only A0-A14, so how to handle those two pins on MMC1? Should they be grounded or logical 1? Or just left floating?

PRG #10 01 28 +5V A12 02 27 #11 A07 03 26 #12 A06 04 25 A08 A05 05 24 A09 A04 06 23 #24 A03 07 22 #09 A02 08 21 A10 A01 09 20 #23 A00 10 19 D07 D00 11 18 D06 D01 12 17 D05 D02 13 16 D04 GND 14 15 D03 CHR ??? 01 28 +5V #03 02 27 ??? A07 03 26 #02 A06 04 25 A08 A05 05 24 A09 A04 06 23 #04 A03 07 22 #...

Just as the topic says, I am searching for the mapper chip pinout. I am currently tracing PRG and CHR pinout on the mapper 19 board (Famista '91) and i got into a dead end with some traces ending in the mapper chip itself.... thanks!

How hard would be to implement also exchanging Data with Adress lines? It's a chunk of data being reorganised, so there must be an algorythm to allow this change... Hmm?

Thanks for the answer, I will try some more emulators. The device is quite nice for its age, has SD card slot so storage is not a problem. Maybe I will go the MP3-way.

tepples wrote:What I did was buy an Android PDA and install Droidsound.

That's great, I am currently thinking about a new android phone!

I have found a cheap Acer n50 PDA and have tried several NES emulators, without much success finding compatible ones. None of those I was able to run has NSF support. Is there any NSF player (or a NES emulator with that support) for this old platform? I also searched for compatible Winamp version, w...

Wow that IS awesome!!!

@ jonnymopar - You should have read a couple of older posts:
http://nesdev.com/bbs/viewtopic.php?p=88290#88290

leonk wrote:

3gengames wrote:Somebody needs a soldering class, lol.

Looks like my soldering skills ... from when I was 11!!

I'll be shocked if that game boots!

Oh God please go ranting about yourselves somewhere else!

kyuusaku wrote:Or better yet use a YMZ284.

Wow that chip looks really much better for the job! Much MUCH smaller!


but where to get one?

Thanks for the schematics! I was finaly able to get to it due to my busy schedule, and I wanted to ask about some of the conections: http://img713.imageshack.us/img713/6818/gimmick.jpg Am I correct? : CPU A14 = Cartridge connector #35 CPU R/W = Cartridge connector #14 PHI2 = Cartridge connector #32 ...

I haven't found RROM pinout anywhere so I made one myself. PRG pinout is the same as NROM, but CHR is different. Here is it compared to common NROM board: HVC-NROM-256K-02 "Pachi Com (J)" CHR ROM: ---_--- +5V - |01 28| - +5V CHR A12 - |02 27| - +5V CHR A7 - |03 26| - GND CHR A6 - |04 25| -...

That's a wonderfull New Year's gift! THANK YOU! I already started testing the Rom and I'll report back immediately after I encounter any weird behavior!
Thank you so much for your work!

I am searching for some cheap 4Mbit Flash ROMs, standard 32-pin PDIP with JEDEC pinout. Is there some table with chip numbers where one can find out what number means what chip? So far I've found these alternatives: 49F040 (ATMEL) 29F004 (PMC) 29F040 (MX, AMD, ST) 28SF040 (SST) Are there more? Do al...

I wouldn't mind playing wih the image output, it's easier to clean an image than to clean a wav file.