Search found 8 matches

by Ten1hc
Sun Jul 19, 2020 7:57 pm
Forum: NES Hardware and Flash Equipment
Topic: KrzysioCartMMC3 - famicom flash cart for mmc3 mapper
Replies: 5
Views: 5492

Re: KrzysioCartMMC3 - famicom flash cart for mmc3 mapper

Hello, Thank you friends.
I found the answer.
Root cause is bad connection of Irq pin 😅.
by Ten1hc
Sun Jul 19, 2020 6:50 am
Forum: NES Hardware and Flash Equipment
Topic: KrzysioCartMMC3 - famicom flash cart for mmc3 mapper
Replies: 5
Views: 5492

Re: KrzysioCartMMC3 - famicom flash cart for mmc3 mapper

20200719_211338.jpg Hello, I have the same issue, the bottom of screen is continiouslly blink, it happen even im using original famicom = ((( I followed your schematic and PCB. The Ax5202 chip i took from old multi games cartridge, it also contain Double Dragon3 USA and sure, cartrigde wokrs fine. ...
by Ten1hc
Sun Jul 12, 2020 6:42 pm
Forum: Test Forum
Topic: [SOLVED] Clone Rush n Attach famicom does not have enough text on start screen.
Replies: 7
Views: 1134

Re: Clone Rush n Attach famicom does not have enough text on start screen.

That is a 128kB mask ROM in 28 pins, it has a different pinout compared to EPROMs (128kB EPROMs are 32 pins). So they dropped the /OE pin to fit an address line, instead. http://nesdev.com/NES%20ROM%20Pinouts.txt Ahaha!!!!! Thank you so much :o :o :o :o :o Now i know where is my stupid = ) I define...
by Ten1hc
Sun Jul 12, 2020 2:37 am
Forum: Test Forum
Topic: [SOLVED] Clone Rush n Attach famicom does not have enough text on start screen.
Replies: 7
Views: 1134

Re: Clone Rush n Attach famicom does not have enough text on start screen.

Almost of UxROM that i saw on internet, at output of 7432 does not have pin control for /OE (Chip output enable). Is this point? Yeah, that part is wrong. ROM /OE can be connected to ground, and the output will be controlled by /CE. ROM's A14, A15, and A16 need to be controlled by the '161 and the ...
by Ten1hc
Sat Jul 11, 2020 5:31 am
Forum: Test Forum
Topic: [SOLVED] Clone Rush n Attach famicom does not have enough text on start screen.
Replies: 7
Views: 1134

Re: Clone Rush n Attach famicom does not have enough text on start screen.

Almost of UxROM that i saw on internet, at output of 7432 does not have pin control for /OE (Chip output enable).
Is this point?
by Ten1hc
Sat Jul 11, 2020 5:28 am
Forum: Test Forum
Topic: [SOLVED] Clone Rush n Attach famicom does not have enough text on start screen.
Replies: 7
Views: 1134

Re: Clone Rush n Attach famicom does not have enough text on start screen.

It must be a mistake, as that can only be changed in the ROM. Maybe the comparison doesn't cover the full range of the ROM, or the comparison was done to the wrong file. Thank you so much for your reply. Any mistake from hardware that you can see? The strange thing is that i copied data from .nes a...
by Ten1hc
Sat Jul 11, 2020 4:53 am
Forum: Test Forum
Topic: [SOLVED] Clone Rush n Attach famicom does not have enough text on start screen.
Replies: 7
Views: 1134

[SOLVED] Clone Rush n Attach famicom does not have enough text on start screen.

Clone Rush n attach does not have enough text on start screen. I dont know why, because i have compared hex data between dump file and .nes file and there are no difference. Capture.JPG I just see only "Kaiser 1967" as below. Capture1.JPG Capture3.JPG Anyone can give me an explaintation? I put my ca...