Making Super Mario Unlimited Famicom cart , many questions.

kokiev2kokiev2
in The Brewery
I played it in a flashcart and then decided that l like it a lot. l now want this physical copy of this game on my person.



I checked with NEStopia and it said that the rom is SJrom so...



1. Do l have to use only the donor from this list? http://bootgod.dyndns.org:7777/search.php?unif=HVC-SJROM



It would be painfully hard to find , well maybe l can get Zombie Hunter for like 10 bucks but still...



2. How do l wire them up using 27c2001 for both CHA and PRG? Is the wiring the same as TKROM & TSROM?



TKROM & TSROM (mapper 4):

PRG socket:

Bend up pins 1, 2, 24, 30 and 31 (or cut tracks 2, 24, 30 and 31)

Solder pin 2 to hole 24 (A16)

Solder pin 24 to GND (OE)

Solder pin 30 to hole 1 (A17)

Solder pin 31 to hole 2 (A18)

CHR socket:

Bend up pins 1, 2, 22, 24, 30, 31 (or cut tracks 2, 22, 24 and 30)

Solder pin 2 to hole 24 (A16)

Solder pin 22 to hole 31 (CE or CHR /A13)

Solder pin 24 to hole 2 (OE or CHR /RD)

Solder pin 30 to hole 1 (A17)



Is this correct?





3. Since Mario Unlimited doesnt have save function , what will happen if l use a donor that has one? Do l have to pry the battery off?





Thanks in advance guys <span class=" src="http://forums.nesdev.com/images/smilies/icon_smile.gif" title="Smile" />

Comments

  • LincolnLincoln
    1. You can use any donor that supports at least whatever size your prg and chr binaries are and has prg ram if your rom requires it. SKROM is the default here, as it supports max capacity for all 3 of those. Al Unser is a good donor. Here's a chart: http://wiki.nesdev.com/w/index.php/SxROM



    2. Yes, those directions will work. Make sure you repeat your binary to fill out the chip before you program. Famirom will do that for you automatically. On prg you can leave pin 31 alone as a 256K chip won't make use of it.



    3. Probably nothing, but I remove the battery anyway. One less thing to go wrong in the future.
  • dra600ndra600n
    Lincoln answered everything, but just to add to the SRAM - if it's not being used by the game at all, leaving it won't affect anything (whether it stays or not), but as Lincoln said, you should probably remove the battery to avoid leaking and corrosion in the future.
  • kokiev2kokiev2
    Guys , thanks for the answers.



    As for the donor ,the Al Unser game that you recommended or World Grand Prix - Pole to Finish for famicom , I've actually never seen the real cart in my entire life. I guess l'll probably end up using Derby Stallion: Zenkokuban or some other crappy horse racing games as a donor.
  • kokiev2kokiev2
    Lincoln , by saying that "On prg you can leave pin 31 alone as a 256K chip won't make use of it." , does it mean that l have to do something extra on CHA side other that what was discripted above?



    The conversion guide doesnt seem to mention pin 31 on either on PRG or CHA. It just tells you yo bent them up. Solder pin 31 to hole 2 (A18). Ok I dont have to do this right?



    the CHA size is 32kb by the way and will be burn on 27c2001 chip. (will be inflated x8 by the famirom.)



    Also regarding battery , can l just use a pair of scissors to cut the two legs that hold the battery to the board off along with it? Or do l have to remove only the battery and leave the legs alone?
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