Zig's SNES Repros

[electrochip]

I tried it with 2 TSOP's and a NHL95 single mask rom game, DQ3 loaded but still did not save. So then I noticed that the CE and OE are reversed on romlabs (which I am sure most people look at for SNES pinouts) and your pinout. I swapped the OE's and CE's and it saves fine with the 74LS139 according to your pinout. I tried without the 74LS139 and the OE's and CE's reversed and it does not save. the 74LS139 is needed.

THANK YOU!!!!

[kogami]

With Tsop or not Tsop ??

[electrochip]

With 2 TSOP's

[kogami]

I do not quite understand, You tried to do a Dragon Quest III 48MB with 2 TSOP (29f032)?

You have used the NHL 95 cartridge double maskrom with 74LS139?

Picture possible of your installation?

[Ziggy]

Amazing. I had the idea to use a 74ls139 with the TSOPs, but couldn't think of how to wire it. Glad you got it working.

And OE and CE are always confused.

[electrochip]

Amazing. I had the idea to use a 74ls139 with the TSOPs, but couldn't think of how to wire it. Glad you got it working.

And OE and CE are always confused.

I tried it before with the 74LS139 but with the CE and OE reversed, no wonder it didn't work. I'm glad I got it working thanks to Lunaris. I'll get a picture posted when I get some sleep and my camera battery charges.

[lunaris]

I do not quite understand, You tried to do a Dragon Quest III 48MB with 2 TSOP (29f032)?

You have used the NHL 95 cartridge double maskrom with 74LS139?

Picture possible of your installation?

Referring to electrochip's post: (http://www.racketboy.com/forum/viewtopic.php?p=284167#p284167)

This is how he made Tales of Phantasia on a 1 maskrom board.
For Dragon Quest 3 and really every game 32mbit+ hirom (no special chip aka SFX/S-DD1) except ToP - you do not connect anything to the mad-1 as it interferes with the sram in a way not known by myself (you could ask kyuusaku though).

You need a 74ls139.
This is what you do with it:
-Courtesy of Kyuusaku

So you need 1 wire from a22 (pin 35 on tsop adapter), 1 wire from EACH tsop adapter's /CE (pin 33 on tsop adapter), 1 wire from SNES /CE (pin 33 of the maskrom on snes PCB), 1 or 2 ground wires - however you want to wire the 2 points that need to be ground (pin 18), and 1 vcc +5v (pin 34 or 36).

[kogami]

I tried to make the cartmodd two TSOP with a cartridge of NHL 95 (Hirom, Mad-1 + SRAM + Simple Maskrom)

I used the game Chrono Trigger News Translation (48MB) "Chrono Compendium patch"

It is always interesting to assemble it in order to understand the wiring.

It is a fairly simple installation, three wires are welded to the MAD-1

"TSOP 1"
Pin 22 (OE) to MAD-1 pin 01

"TSOP 2"
Pin 22 (OE) to MAD-1 pin 16

"MAD-1"
Raise pin 13 and solder to TSOP pin 35 (A22)

As rightly said electrochip, the game works but the backup does not work.

It remains for me to try it out with a cartridge containing the chip on the PCB 74LS139, I have no cartridge equipped 74ls139 right now, I would do this test a little later.

Some pictures:







It's okay ?


Edit:
Bingo !!!!!
its backup







I found one in my house one 74LS139 and I finally could do the test.

Thank you all for your explanation

[electrochip]

You don't have to solder a wire from A21 to MAD-1 pin 13 on NHL 95 it is already there. I only mentioned that to you because Tales of Phantasia has A22 on Mad-1 pin 13 and would have to be changed if using that as the donor cart.

[bartre]

so, couple more questions
i'm working on a Sanrio World Smash Ball repro, and the rom size is 288 Kb, how can i pad it to 1 MB?

also, i tried to make a repro of King of Demons/Majuu ou, and it boots, but goes black before the main menu.
I used a copy of Wayne Gretzky and the NHLPA all stars as the source, which matches, and is a 2 rom board, but i can't figure out what the problem is, any ideas?