SCPH 100 question

[kschewe]

I have the JP version of the ps1. I am using the Arduino Nano.
In you code i #define ARDUINO_328_BOARD
In the instructions it does not mention to wire to bios chip, it only mentioned the PAL version. Is this correct?
I was not able to get it to work at the moment. My other one i install mod chip and change the bios on the JP version

[kalymos]

hi. if it is indeed a 100 then a Japanese one. this version of the mode does not work with it, look instead at version 8.5, which works with it, and which has a new documentation.

https://github.com/kalymos/PSNee_V8/tree/test2

[kschewe]

Thanks for the response I read the Doc on this one for the pu-41. i will try and get back to you. Thanks

…

________________________________ From: kalymos ***@***.***> Sent: November 16, 2024 1:11 AM To: kalymos/PsNee ***@***.***> Cc: kschewe ***@***.***>; Author ***@***.***> Subject: Re: [kalymos/PsNee] SCPH 100 question (Issue #58) hi. if it is indeed a 100 then a Japanese one. this version of the mode does not work with it, look instead at version 8.5, which works with it, and which has a new documentation. https://github.com/kalymos/PSNee_V8/tree/test2 — Reply to this email directly, view it on GitHub<#58 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BLL33GARLZN3FMQ3I3PVTFD2A3V33AVCNFSM6AAAAABR4J6IUCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDIOBQGQ2TSMBXGY>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[kschewe]

psnee v8.5 works on schp-100 JP version. The 2 additional points needed be soldered tot he bios chip DX and AX. 8 wires in total. I used the Arduino nano. Using Arduino ide. All i did was define atmega328 and define scph-100. Programmed by usb com port. Nothing else was required.

[kalymos]

Does it work with region-free or burned games? If so, it's good.
but if you programmed it without ISP, the bootloader is still on the card, and it can cause a delay that prevents the bios patch.

[kschewe]

I just tested and it worked on legit NA, JP and burnt game. So far it loaded up all games with no issues. I intend to install on a schp 1000 model soon. I could try again with the other method since it seems to have no issues programming the nano when installed into ps1.
I did not try the ISP way since it was first time using this software and Arduino.

[kalymos]

I'm happy for you.
P.S. Sometimes using ISP can be a bit of a pain, to test I use a blink sketch.