Getting some protos out there, need PCB info help!
Hey all!
Got 4 protos that I think I'm finally ready to get out to the public, but I need some help first. Below is a list of information I get from FCEUltra when I run the games on it. What PCB would each of these games use? With that info, I think I can have 1-2 of these out in the next few months with the rest to follow. Thanks guys!
Proto #1:
Mapper 1
PRG 16 x 16 kb
CHR ROM 0 x 8kb
Vertical Mirroring
No battery
Proto #2:
Mapper 1
PRG 8 x 16 kb
CHR ROM 16 x 8kb
Vertical Mirroring
No battery
Proto #3:
Mapper 1
PRG 16 x 16 kb
CHR ROM 0 x 8kb
Vertical Mirroring
Battery Present
Proto #4:
Mapper 1
PRG 8 x 16 kb
CHR ROM 0 x 16kb
Vertical Mirroring
No battery
If I knew the exact PCB of each, I'd be 100% ready to rock and roll. Please help get these out there!
Got 4 protos that I think I'm finally ready to get out to the public, but I need some help first. Below is a list of information I get from FCEUltra when I run the games on it. What PCB would each of these games use? With that info, I think I can have 1-2 of these out in the next few months with the rest to follow. Thanks guys!
Proto #1:
Mapper 1
PRG 16 x 16 kb
CHR ROM 0 x 8kb
Vertical Mirroring
No battery
Proto #2:
Mapper 1
PRG 8 x 16 kb
CHR ROM 16 x 8kb
Vertical Mirroring
No battery
Proto #3:
Mapper 1
PRG 16 x 16 kb
CHR ROM 0 x 8kb
Vertical Mirroring
Battery Present
Proto #4:
Mapper 1
PRG 8 x 16 kb
CHR ROM 0 x 16kb
Vertical Mirroring
No battery
If I knew the exact PCB of each, I'd be 100% ready to rock and roll. Please help get these out there!
Comments
CHR RAM - use SNROM/SJROM
CHR ROM - use SKROM/SLROM
But if you are running in FCEU you already have a ROM?
Yep, already got the ROMs, but I know much less about the workings of NES games than most think I do! Basically, my ability to make reproductions and dump protos in the past comes from:
- Being able to patiently follow detail instructions
- Trial and TONS of error
I am positive this time that I can get these protos out there, but I need to know the specific PCB each would use. So my questions are now:
How do I identify which games with CHR RAM use SNROM and which use SJROM?
How do I identify which games with CHR ROM use SKROM and which use SLROM?
What size is the PRG in each of the above protos?
What size is the CHR ROM/RAM chips in the above protos?
I think from there I'll be close to 100% ready to get these things out. Thanks Brian for the info!
Edit: Ah, I get what you mean about already having the ROM. You mean, isn't that all I need to release it? I am looking to do reproduction runs of these protos, and then release the ROMs for free. Sorry about that, should have mentioned that in my first post!
Originally posted by: MrMark0673
How do I identify which games with CHR RAM use SNROM and which use SJROM?
SN and SJ are the same, both support WRAM and a battery if needed. Unfortunately the ROM only tells you if the battery is there, not if the WRAM is there. Would have to watch the RAM usage in the debugger, or look at the original prototype board. Won't know the exact/minimum boards that will work until you know if WRAM is needed. The emulator will just assume there is WRAM because it doesn't cost them $$$
Originally posted by: MrMark0673
How do I identify which games with CHR ROM use SKROM and which use SLROM?
SLROM only has PRG/CHR, SKROM adds WRAM and battery if needed.
Originally posted by: MrMark0673
What size is the PRG in each of the above protos?
The ROM info tells you that. "PRG 16 x 16 kb" means 256KB. Most of the MMC1 boards support 256KB PRG, some (SA/SB/SC) only support 128KB. That should only matter if you are using donors instead of new boards.
Originally posted by: MrMark0673
What size is the CHR ROM/RAM chips in the above protos?
ROM info has that too, "CHR ROM 16 x 8kb" means 128KB CHR ROM. If it says "0 x 8kb" that means 8KB RAM instead.
Others, need more info/have to assume.
Wow this is exciting, potentially 4 new releases, with a cart release first?
Yep. We're sick of waiting, and now is the time. I absolutely guarantee to have all four releases out within the next 12-18 months.
Edit: PCB #1 is on an SNROM board. So for that, I just need an SNROM board, 256 KB PRG, 8 KB CHR RAM, WRAM, without battery. Seem right?
Originally posted by: K.Thrower
Nice, I recognize 3 of 4 of them. Look forward to their release!
Damn, good eye! Which is still a mystery to you?
I'm super excited about that one, maybe the most excited compared to the 4. Matt thinks I'm crazy and is much more excited about #1, but what does he know?
Originally posted by: MrMark0673
Proto #1:
Needs WRAM, so SNROM or SJROM. If a battery is already there it would just be unused or you could cut it off.
Proto #2:
No WRAM and only 128KB PRG/CHR, so SCROM, SKROM, SLROM would all work. If you use SKROM it might have have WRAM and/or battery which would just be unused.
Proto #3:
SNROM or SJROM, need to make sure donor has a battery (which guarantees WRAM too). You could add WRAM+battery to a donor that doesn't have it.
Proto #4:
SGROM is direct match. SJROM or SNROM can be used and the WRAM+battery (if present) would just be unused.
As you see SNROM is pretty popular!