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CPS2 Suicide Free Modchip

Megalocade said:
I can mate but usually ssf2 nc comes on a rev 3 or 4 board which means no CN9 connector, instead you will have to solder the chip wires to the cn2 connector like someone has done here, i have the same board as you and i soldered header pins on so i could use my cable.

Screen Shot 2020-01-11 at 21.33.22.png
Click to expand...
Yeah I'm willing to do whatever to bring the game back from the dead. I'll pm you
 
So, i recently did this mod, since theres a shortage of infinkey's and my A2 board runs fine. My Alpha board started to work, then stopped randomly. Idk if something burned out or was damaged or what. Ive re solder the IC chip and tried it on a different Mobo and still got the same issue. Has anyone had the happen, or know what else i should check? Im getting a red screen and The board is a rev 7.
 

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So I have downloaded the hex file for xmcotaa to revive a dead Asia COTA.
I have never programmed a PIC with my eetoold TopMax2.
When I import the HEX into the buffer it says loaded and gives me a checksum of BE00h
When I try to program it, it says complete but it reads as all FF

I am sure I am doing something wrong. Do I need to set secure fuses after programming ? I know I am missing something easy, but I have never burned a PIC before.
Any help is appreciated. I made a little socket adapter for the PIC so I dont have to desolder it to reprogram, I just pop it out.

Any help is appreciated.
 
SCUBA King said:
So I have downloaded the hex file for xmcotaa to revive a dead Asia COTA.
I have never programmed a PIC with my eetoold TopMax2.
When I import the HEX into the buffer it says loaded and gives me a checksum of BE00h
When I try to program it, it says complete but it reads as all FF

I am sure I am doing something wrong. Do I need to set secure fuses after programming ? I know I am missing something easy, but I have never burned a PIC before.
Any help is appreciated. I made a little socket adapter for the PIC so I dont have to desolder it to reprogram, I just pop it out.

Any help is appreciated.
Click to expand...

I am used to opening BIN files and burning them to PROMs and Eproms, I have never used a HEX file as source with eeTools Topmax2



Here are the settings I have access to on TopMax2 for this IC:

1670309873812.png

1670309891109.png
 
SCUBA King said:
When I try to program it, it says complete but it reads as all FF
Click to expand...
This may be intended; during the programming process for many ICs, data can be checked after being written but only before the chip is locked. Security is usually at the end of the queue of the programmers tasks. Once locked a PIC will not verify, you'll want to check it in circuit at that point.
 
skate323k137 said:
This may be intended; during the programming process for many ICs, data can be checked after being written but only before the chip is locked. Security is usually at the end of the queue of the programmers tasks. Once locked a PIC will not verify, you'll want to check it in circuit at that point.
Click to expand...
I'll try it again, maybe I locked it right away? I will try another one and see what happens.
Thanks!
 
Hello everyone,

I bought a Super Street Fighter 2 X JAPAN board.

it was all black and maybe 2-3mm thick of dust and was look like tar...
But it was working.

for a sec i forgot about the battery and give it a wash. After drying (2 day process of hair dryer + sun)
It wasn't working. My first guess was battery shorted out and keys gone.

What i have tried so far;

From the eprom labels and checking 03C rom on romident. It is 940223 --> ssf2xjr1

1759125644245.jpeg


1759125672630.png


Burned CPS2_Modchip_aje_fr_ssf2xjr1.hex on a PIC12F675 chip using Wellon VP598 programmer using default values;

1759125606580.png


1759125618149.png


remove the battery and Apply it to my Rev 4 board

1759125700296.jpeg



Still nothing on screen.

Then i found a suicide tester v2 on razoola website. And give it a try.

1759125733469.jpeg


I can also hear game music on this screen.

Do you think something went wrong with modchip?

Any burning faults?
 
oguzog said:
Hello everyone,

I bought a Super Street Fighter 2 X JAPAN board.

it was all black and maybe 2-3mm thick of dust and was look like tar...
But it was working.

for a sec i forgot about the battery and give it a wash. After drying (2 day process of hair dryer + sun)
It wasn't working. My first guess was battery shorted out and keys gone.

What i have tried so far;

From the eprom labels and checking 03C rom on romident. It is 940223 --> ssf2xjr1

1759125644245.jpeg


1759125672630.png


Burned CPS2_Modchip_aje_fr_ssf2xjr1.hex on a PIC12F675 chip using Wellon VP598 programmer using default values;

1759125606580.png


1759125618149.png


remove the battery and Apply it to my Rev 4 board

1759125700296.jpeg



Still nothing on screen.

Then i found a suicide tester v2 on razoola website. And give it a try.

1759125733469.jpeg


I can also hear game music on this screen.

Do you think something went wrong with modchip?

Any burning faults?
Click to expand...
Since the suicide tester is working I feel like the problem must be the mod chip installation. What is the +5V voltage you are measuring at the chip?
 
Good point. That came to my mind and already measured.

on jamma connector side i can see 5,1volts

but on modchip legs 4,7volts.

I also measured couple of other chips nearby and all shows 4,7volts. Not only modchip.
 
oguzog said:
Good point. That came to my mind and already measured.

on jamma connector side i can see 5,1volts

but on modchip legs 4,7volts.

I also measured couple of other chips nearby and all shows 4,7volts. Not only modchip.
Click to expand...
That may be too low to actually write the keys? another thing to try would be using an arduino setup and powering it with an external power supply.
 
KaPH33n said:
That may be too low to actually write the keys? another thing to try would be using an arduino setup and powering it with an external power supply.
Click to expand...
I've raised system voltage a bit higher like 5.22volts
which i can measure 5.05volts on modchip.
still nothing.
 
This is the message when i load hex file to the wellon SW.

if it is relevant to the case.

1759169605321.png
 
oguzog said:
This is the message when i load hex file to the wellon SW.

if it is relevant to the case.

1759169605321.png
Click to expand...
try using the suicide tester chip with the modchip installed. if it loads up like normal then you know the keys are not being written.
 
KaPH33n said:
try using the suicide tester chip with the modchip installed. if it loads up like normal then you know the keys are not being written.
Click to expand...
see my original message. Maybe you missed. Test screen just normal. That is why i thought something could be wrong with burning pic.
 
By the way
I see Wellon 598 programmer.
Hex file is 2 KB
but when i write it to a PIC12F675 and read again and save it.
it is 41 kB

is that a problem?
 
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