Search found 703 matches

by krzysiobal
Fri May 22, 2020 2:26 am
Forum: Reproduction
Topic: Help with Kaiser's Highway Star repro
Replies: 39
Views: 1869

Re: Help with Kaiser's Highway Star repro

Fisher wrote:
Thu May 21, 2020 6:45 pm
I'm still having mirroring problems unfortunately. :-(
Did you read my post?
by krzysiobal
Thu May 21, 2020 3:26 pm
Forum: NESdev
Topic: Mmc1a versus 1b2 etc
Replies: 12
Views: 445

Re: Mmc1a versus 1b2 etc

Connect two in series to get ~235pF.
by krzysiobal
Thu May 21, 2020 2:17 pm
Forum: NESdev
Topic: Mmc1a versus 1b2 etc
Replies: 12
Views: 445

Re: Mmc1a versus 1b2 etc

I has recently issues running one famiclone game, with original MMC1B - the game crashed randomly few seconds after start. I tried adding capacitor on power line, M2, /ROMSEL - no help. Adding 220p capacito between CPU-R/!W and GND solved the issue - it looks like the latches inside MMC are clocked ...
by krzysiobal
Sun May 17, 2020 4:45 pm
Forum: General Stuff
Topic: God Mode No Holes No Timer No Damage SMB Hack
Replies: 6
Views: 477

Re: God Mode No Holes No Timer No Damage SMB Hack

Level 4-4 - when you fall into hole and land on top of, you can't finish it because the map loops.
Even if you jump and you appear at the bottom, returning to the "inside", you still can't finish it.
by krzysiobal
Sun May 17, 2020 2:02 pm
Forum: NES Hardware and Flash Equipment
Topic: Operation Wolf - pirate port of Taito's TC0190 (Mapper 33)
Replies: 0
Views: 123

Operation Wolf - pirate port of Taito's TC0190 (Mapper 33)

I don't have access to cartridge to check either ROM or PAL, but the connection of components clearly reveals its goal was to mimic the Japanese version, based on TC0190 chip and the hardware is compatible with TC0190 (well, at least to the point used by Operation Wolf game) PRG registers: While the...
by krzysiobal
Sat May 16, 2020 2:45 am
Forum: NES Hardware and Flash Equipment
Topic: Green Beret FDS port
Replies: 1
Views: 130

Green Beret FDS port

No physical access to the cartridge so can't confirm if it is Kaiser or Whirlwind Manu version, but both use the same mapper UNIF AC-08. $8001 ~[...PPPP.] (mask=$E001) |||| |+++- PRG bank at $6000 +---- PRG chip select: 0 = PRG1 = IC2 1 = PRG2 = IC3 $6000 $8000 $a000 $c000 $e000 ----- ----- ----- --...
by krzysiobal
Sat May 16, 2020 1:39 am
Forum: NES Hardware and Flash Equipment
Topic: MMC1 free implementation on CPLD released
Replies: 34
Views: 9231

Re: MMC1 free implementation on CPLD released

MMC1 fits EPM3064 which is cheap and has 5 V tolerant inputs.
by krzysiobal
Wed May 13, 2020 2:42 am
Forum: NES Hardware and Flash Equipment
Topic: Fanicom System 3D glasses adapter rev-en
Replies: 1
Views: 318

Fanicom System 3D glasses adapter rev-en

Basing on the photos from famicomworld : https://obrazki.elektroda.pl/7115233600_1589362473_thumb.jpg https://obrazki.elektroda.pl/1851513600_1589362476_thumb.jpg https://obrazki.elektroda.pl/1884531300_1589362483_thumb.jpg https://obrazki.elektroda.pl/3202539000_1589362487_thumb.jpg There is 455 op...
by krzysiobal
Tue May 12, 2020 3:43 pm
Forum: NES Hardware and Flash Equipment
Topic: Mega Girl Another Fight Story (Mega Man 1 Hack)
Replies: 0
Views: 438

Mega Girl Another Fight Story (Mega Man 1 Hack)

I got this broken cartridge for check & dump. It reminds me in design this one . There is place to solder PRG-ROM, CHR-ROM (or CHR-RAM), two blobs, one unknown SO14 chip and a lot of jumpers. * The pinout of top, unpopulated blob (let's call it U4) is exactly like the AX5202P, without WRAM and PRG-A...
by krzysiobal
Tue May 12, 2020 10:45 am
Forum: General Stuff
Topic: Jokes
Replies: 1
Views: 378

Jokes

When famiclone guys pirate the cartridge using original hardware but don't care about pitch
Image
by krzysiobal
Mon May 11, 2020 3:30 pm
Forum: Reproduction
Topic: Help with Kaiser's Highway Star repro
Replies: 39
Views: 1869

Re: Help with Kaiser's Highway Star repro

But that can't be done with using only one NAND gate and stealing additional OR gate for that purpose makes the mirroring register to occupy less than $8000-$ffff There are two visible traces coming out of the 74'138 in Snacks's photo. Don't know if it's authentic to the original hardware, however....
by krzysiobal
Mon May 11, 2020 2:33 pm
Forum: Reproduction
Topic: Help with Kaiser's Highway Star repro
Replies: 39
Views: 1869

Re: Help with Kaiser's Highway Star repro

74LS02 ____ 74LS138 74LS74 PPU A10--\ \ ____ +---V---+ +------+ ) O----\ \ CPU A13-1|A0 |16---VCC---1|CLR Q|5----------/___/ ) O---CIRAM A10 CPU A14-2|A1 O0|15---------3|CLK | ____ +---/___/ /ROMSEL-3|A2 O1|14 CPU D0-2|D | PPU A11--\ \ | /ROMSEL-4|/E0 O2|13 VCC---4|PRE /Q|6-+ ) O+ CPU R/W-5|/E1 O3|...
by krzysiobal
Thu May 07, 2020 8:15 am
Forum: NES Hardware and Flash Equipment
Topic: Multicart doesn't work on famicom
Replies: 12
Views: 1037

Re: Multicart doesn't work on famicom

Try to push reset button after you power-up the console.
by krzysiobal
Tue May 05, 2020 11:00 am
Forum: NES Hardware and Flash Equipment
Topic: Trying to fix a clone [Dynavision Extreme]
Replies: 14
Views: 985

Re: Trying to fix a clone [Dynavision Extreme]

I spent half of my life using 8 channel USB logic analyzer (Saleae8) from China (10$ shipped) and I can't san single bad word about it. Rarely you'll need more channels. Later I bought Saleae16 and my conclusion was that more channels you got, the more wire mess you have.
by krzysiobal
Mon May 04, 2020 2:10 pm
Forum: NES Hardware and Flash Equipment
Topic: Trying to fix a clone [Dynavision Extreme]
Replies: 14
Views: 985

Re: Trying to fix a clone [Dynavision Extreme]

Unfortunatelly it's a epoxy blob. Make good qualit photos of both sides of PCB, maybe there are tracks to nowhere or jumpers that is unused CIRAM /CE line I tried both pull ups and downs on CPU D7 without success, even tried 1k ones. Instead of blindfully pull-uping it is good to use logic analyzer...