noac has arrived

Includes Atari 2600, Nintendo 8-bit, Sega Master System, MSX and more!

Moderator: Moderators

maddox
Posts: 69
Joined: Sun Apr 17, 2005 2:28 pm

noac has arrived

Post by maddox »

yeah,

today my noac arrived. (called DigiCom GunBoy)
i bought it on ebay.de for 1,00 Euro = 1.375 USD + shipping
really cheap offer. There are more of this noac's on ebay.de
if you're interested i can buy them for you and ship them around the world.

it has buildt in 7600 "crappy games" (ok just 64 games in different levels)
the lightgun is buildt into the Player controller
it's a real piece of HongKong cheap plastic, but so what only the gut's are from interest.



Image
Last edited by maddox on Wed Apr 20, 2005 6:51 pm, edited 1 time in total.
G-force
Moderator
Posts: 3609
Joined: Mon Apr 19, 2004 1:43 pm
Location: Sweet home Indiana
Contact:

Post by G-force »

I don't get why ben called them crappy games. They were the same games as you would play on a normal NES cart (Except for contra, it was hacked.)

I notice that it looks like it uses the N64 joystick for a d-pad. That's different from most NOAC's.
maddox
Posts: 69
Joined: Sun Apr 17, 2005 2:28 pm

Post by maddox »

crappy because they say there are 7600 games on it but in real only 64 games . If you got to game no. 65 in the list it's the same as game no. 1 and so on. an there are some non nes games on it.

and yes the the plastic shell is a lil different, looks like the pad from the n64
but no shoulder buttons, only buttons a & b. the middle handle is shaped like a pistol handle with a trigger 4 the inbuildt lightgun. the stick at the middle handle has also simple pushbuttons and is hooked to the same circuit as the normal direction buttons are.

The nes cartridge slot is absolutely unsuportet. not one word about it in the manual.

but as i said above, the gut#s, the gut's and only the gut's count *fg

sorry 4 my "real crappy" english. :D
gannon
Moderator
Posts: 6974
Joined: Sun Apr 04, 2004 4:48 pm
Location: Near that one big lake
Contact:

Post by gannon »

Also, on the last super joy 3 I had the sound of most of the internal games was screwed up (I assume it has something to do with the reprogramming done to them)
Great Hierophant
Posts: 2
Joined: Sun Apr 10, 2005 1:41 pm

Post by Great Hierophant »

I would guess that the sound is screwed up not because of reprogramming but because the Nes on a Chip is inaccurate when it comes to reproducing the true NES sound.
gannon
Moderator
Posts: 6974
Joined: Sun Apr 04, 2004 4:48 pm
Location: Near that one big lake
Contact:

Post by gannon »

Then why do external carts on mine produce accurate sound?
:P
maddox
Posts: 69
Joined: Sun Apr 17, 2005 2:28 pm

Post by maddox »

hmm

then it has to be a failure comming from the "crappy games".
SgtBowhack
Posts: 831
Joined: Wed Dec 08, 2004 5:16 am
Location: Chicago, USA

Post by SgtBowhack »

Yeah, the NOAC is not that bad at reproducing sound, really. You give it a lot more crap than it deserves. There are a lot of pirate carts with wacky sound because:
- The pirates thought if they reprogrammed the sound, then it might not be illegal (seriously!)
- The pirates might've ripped sound out to allow them to put more great games on the cartridge!... and simultaneously made the experience less fun
- It may well just be screwed up.

But yeah, the NOAC is VERY accurate at duplicating noise. Some of the implementations screw it up. The only thing that it really lacks in comparison to the real NES is that it only has 1 stream coming from the chip itself, where the NES split it into 2 (which makes no difference because the NES just mixes the two outside of the chip anyway).
maddox
Posts: 69
Joined: Sun Apr 17, 2005 2:28 pm

Post by maddox »

today i'm startin 2 rewire my noac.
adding external power (7805), charger connector, own reset button, Player 1 Pad connector, connectors 4 audio & video out.
Alchemist
Posts: 248
Joined: Mon Apr 04, 2005 3:48 pm

Post by Alchemist »

G-force wrote:I don't get why ben called them crappy games. They were the same games as you would play on a normal NES cart (Except for contra, it was hacked.)
They are crappy because they are mostly all first generation games before the mappers took hold. You will never see SMB3, for instance (more's the pity).
SgtBowhack wrote:Yeah, the NOAC is not that bad at reproducing sound, really. You give it a lot more crap than it deserves. There are a lot of pirate carts with wacky sound because:
- The pirates thought if they reprogrammed the sound, then it might not be illegal (seriously!)
- The pirates might've ripped sound out to allow them to put more great games on the cartridge!... and simultaneously made the experience less fun
- It may well just be screwed up.
I call screwed up storage, as unlikely as it is. I don't think the sound was ripped - wouldn't make sense, it's only a few bytes of data and it would be very difficult to do without breaking the ROM. It's not like CD-based games where the sound is often sampled and can be re-sampled at a lower bitrate/easily removed, the sound on NES is generated by code rather than played back from file, so it couldn't be replaced with a "lower quality" version of some kind. I also doubt that they thought that changing the sound would alter the legality - if they actually cared about legality in the first place (they don't) they would choose different games, like those made by companies who don't exist any more (and in fact some Famiclones have, I saw one with only Wisdom Tree games on it).
But yeah, the NOAC is VERY accurate at duplicating noise. Some of the implementations screw it up. The only thing that it really lacks in comparison to the real NES is that it only has 1 stream coming from the chip itself, where the NES split it into 2 (which makes no difference because the NES just mixes the two outside of the chip anyway).
I'd imagine it does have two sound channels internally but it joins them before output, for accuracy). Not that it makes any difference, as you pointed out, although you can hack a weird kind of stereo sound out of a NES, by using the two audio out pins on the CPU which contain one pin of tone+noise and one pin of tone+tone. Not sure why you'd want to, of course, since no games would ever have been programmed to take advantage of multiple sound channels.
maddox
Posts: 69
Joined: Sun Apr 17, 2005 2:28 pm

Post by maddox »

testing circuit is already done, time to try it on the bigscreen.
pictures of the crazy mess will follow.
maddox
Posts: 69
Joined: Sun Apr 17, 2005 2:28 pm

Post by maddox »

sorry 4 doublepost

damn, something went wrong with my test circuit.
i got no propper video on the screen, instead i got a red picture that's wandering from bottom to top.

has anyone an idea what went wrong ?

here's the pinout from the noac:

Power / Video / Player 1 Pad

01 = + = + Volt
02 = - = Ground
03 = PL = Paddle/Lightgun
04 = CK1 = Pad Clock (player 1 pad)
05 = D01 = Data 01 pad
06 = NC = Not Connected
07 = Res = Reset
08 = D3 = Data 03 pad
09 = D4 = data 04 pad
10 = B = ???
11 = V = Video
12 = A = Audio

Player 2 Pad

01 = - = Ground
02 = D3 = Data 03 pad
03 = CK2 = Pad Clock (player 2 pad)
04 = PL = Paddle/Lightgun
05 = D02 = Data 02 pad
06 = B = ???
07 = + = + Volt

The B pins of each Pad are directly connected together.

so if anyone has an idea what went wrong with the video out please explain. maybee there is a resistor or something missing in my testcircuit.
or maybe there is a different GND for video ?
Last edited by maddox on Thu Apr 21, 2005 1:03 pm, edited 1 time in total.
Alchemist
Posts: 248
Joined: Mon Apr 04, 2005 3:48 pm

Post by Alchemist »

You know there's an edit button, right?
maddox
Posts: 69
Joined: Sun Apr 17, 2005 2:28 pm

Post by maddox »

I'm sooooo sorry

ok,

now a have a complete greenish screen, no more wandering.
If I hit reset, the screen scrambles.

Ideas ??
gannon
Moderator
Posts: 6974
Joined: Sun Apr 04, 2004 4:48 pm
Location: Near that one big lake
Contact:

Post by gannon »

B is the P/S line of the controllers (aka: Latch)
Post Reply