Search found 178 matches

by jpx72
Thu Apr 12, 2012 9:29 pm
Forum: Newbie Help Center
Topic: 27c256 as CHR on SKROM question
Replies: 4
Views: 1933

27c256 as CHR on SKROM question

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?
by jpx72
Fri Mar 30, 2012 3:23 am
Forum: Newbie Help Center
Topic: Is there a Namcot-175 mapper pinout?
Replies: 1
Views: 1329

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 #...
by jpx72
Thu Mar 29, 2012 3:35 am
Forum: Newbie Help Center
Topic: Is there a Namcot-175 mapper pinout?
Replies: 1
Views: 1329

Is there a Namcot-175 mapper pinout?

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!
by jpx72
Mon Mar 05, 2012 2:24 am
Forum: Homebrew Projects
Topic: EPROM Pin Swapper
Replies: 18
Views: 17052

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?
by jpx72
Sun Mar 04, 2012 10:16 pm
Forum: Newbie Help Center
Topic: NSF player for Windows Mobile 2003 SE?
Replies: 3
Views: 1806

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!
by jpx72
Sun Mar 04, 2012 11:16 am
Forum: Newbie Help Center
Topic: NSF player for Windows Mobile 2003 SE?
Replies: 3
Views: 1806

NSF player for Windows Mobile 2003 SE?

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...
by jpx72
Sat Feb 25, 2012 2:18 am
Forum: Homebrew Projects
Topic: EPROM Pin Swapper
Replies: 18
Views: 17052

Wow that IS awesome!!!
by jpx72
Fri Feb 24, 2012 4:02 am
Forum: Reproduction
Topic: Mario Adventure ( SMB3 Hack ) on real Hardware !!
Replies: 143
Views: 66378

@ jonnymopar - You should have read a couple of older posts:
http://nesdev.com/bbs/viewtopic.php?p=88290#88290
by jpx72
Wed Feb 22, 2012 10:20 pm
Forum: NES Hardware and Flash Equipment
Topic: This devcart is a gimmick! Literally ...
Replies: 23
Views: 8095

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

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!
by jpx72
Tue Feb 21, 2012 2:37 am
Forum: NES Hardware and Flash Equipment
Topic: This devcart is a gimmick! Literally ...
Replies: 23
Views: 8095

kyuusaku wrote:Or better yet use a YMZ284.
Wow that chip looks really much better for the job! Much MUCH smaller!
Image

but where to get one?
by jpx72
Mon Feb 20, 2012 3:18 am
Forum: NES Hardware and Flash Equipment
Topic: This devcart is a gimmick! Literally ...
Replies: 23
Views: 8095

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 ...
by jpx72
Thu Feb 09, 2012 1:06 am
Forum: NES Hardware and Flash Equipment
Topic: RROM pinout
Replies: 1
Views: 1330

RROM pinout

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| - CHR A8 CH...
by jpx72
Mon Jan 23, 2012 10:03 am
Forum: Newbie Help Center
Topic: Convert IPS patch for (J) release to (E) possible?
Replies: 21
Views: 5791

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!
by jpx72
Tue Jan 17, 2012 3:08 am
Forum: Newbie Help Center
Topic: Lost in Flash Rom numbers
Replies: 1
Views: 1370

Lost in Flash Rom numbers

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...
by jpx72
Wed Jan 04, 2012 3:43 am
Forum: NESdev
Topic: TapeDump v1.0 - a tool to dump carts without extra hardware
Replies: 177
Views: 71368

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