Hi,
I built myself a test cart with sockets for mapper 011.
It uses a HC377 to select the current PRG (32KB) and CHR (8KB) banks at ($8000-$FFFF)
I'm not using bit 2 & 3 since I'm using Attiny13A for lockout defeat.
It works fine with some games (ex: Spiritual Warfare, Metal Fighter, etc.)
But I only have black or pink screen with some other game (Sunday Funday: The Ride)
Any idea what may cause Sunday Funday not to work?
Mapper 011 repro board not working with some games
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Forum rules
1. NO BLATANT PIRACY. This includes reproducing homebrew less than 10 years old, with the exception of free software.
2. No advertising your reproductions, with the exception of free software.
3. Be nice. See RFC 1855 if you aren't sure what this means.
1. NO BLATANT PIRACY. This includes reproducing homebrew less than 10 years old, with the exception of free software.
2. No advertising your reproductions, with the exception of free software.
3. Be nice. See RFC 1855 if you aren't sure what this means.
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- Posts: 99
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Re: Mapper 011 repro board not working with some games
Could it be related to being a multicart?
I'm not using the charge pump circuitry since I'm using a attiny13a. Could it be related?
Should I add delay to any signal?
I'm not using the charge pump circuitry since I'm using a attiny13a. Could it be related?
Should I add delay to any signal?
Re: Mapper 011 repro board not working with some games
If the game by itself works fine in accurate emulators, I see no reason that the missing charge pump could be related.
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Re: Mapper 011 repro board not working with some games
Hi,
Is mesen considered an accurate emulator?
The Rom works fine in it.
Is mesen considered an accurate emulator?
The Rom works fine in it.
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Re: Mapper 011 repro board not working with some games
Yes, and no depends on how you use it. That is Messen by default uses a Game Database to load most known games on their intended Hardware. There is a setting in Preferences under Advance that has a check box that say's Disable Built in Database (Not Recommended). I would try that and then see if the Rom still works. Don't forget to switch it back before running your other games with Messen.mightydidz wrote: ↑Wed Apr 12, 2023 5:33 am Hi,
Is mesen considered an accurate emulator?
The Rom works fine in it.
Don't buy FamicomNes games WillyNilly Check the Mapper first
https://www.nesdev.org/wiki/Mapper
https://nescartdb.com/
I feel like I said something wrong even if I didn't I don't know for sure and I always feel bad about it.
https://www.nesdev.org/wiki/Mapper
https://nescartdb.com/
I feel like I said something wrong even if I didn't I don't know for sure and I always feel bad about it.
Re: Mapper 011 repro board not working with some games
The header, though, is not directly relevant for an actual physical cartridge. If ROM works with the database, then the ROM data is good, while its header may not be. Unless you're relying on the header data in the ROM file for making the repro, it won't matter if it's bad.
When you load the ROM in Mesen, if you go to Tools -> Log Windows, that will show you the header information and, if the ROM is in the database, the database information it's using to run the ROM. You can make sure that the hardware you're building matches the database information, assuming there is any.
When you load the ROM in Mesen, if you go to Tools -> Log Windows, that will show you the header information and, if the ROM is in the database, the database information it's using to run the ROM. You can make sure that the hardware you're building matches the database information, assuming there is any.