PSNee V8 - Ultimate PSX unlocker

General information to do with the PlayStation 1 Hardware. Including modchips, pinouts, rare or obscure development equipment, etc.
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alimadhi
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PlayStation Model: DTL-H1101
Location: From the Hell

Post by alimadhi » January 28th, 2024, 4:18 am

i have ATmega328P Pro Mini
can this works ? and how to flashing the MCU ? what programer to used ?
console model 7500 JP
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Victini378
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Joined: Feb 08, 2024
PlayStation Model: SCPH-9002

Post by Victini378 » February 10th, 2024, 2:58 am

brill wrote: June 29th, 2022, 9:54 pm
Nextria wrote: June 23rd, 2022, 12:13 am Hello,

I have read the post, and I am a little bit confused.
As far as I understand the most points are the same as with the Psnee v7

VCC
SQCK
SUBQ
DATA
GATE_WFCK
GRD

But where are the points AX-BIOS, AY-BIOS and DX-BIOS on the PlayStation motherboards?
Obviously, the points AX-BIOS, AY-BIOS and DX-BIOS should be sought on the ROM BIOS chip (IC102)

Attached is the pinout of the 32 pin bios chip

p.s.: as it became known at the moment firmware contains a bug. if you want to use the console to listen to cd audio disks, you need to set a switch (Switch*(optional) on diagram) to disable bios patching. otherwise when you go into the cd player the console will hang/reboot. if you only plan to play, then this bug will not affect the launch.
As far as I can see, this bug still exists? :) Is there hope of a fix, or must we resign ourselves to using the switch? :(

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brill
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PlayStation Model: SCPH-7502
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Post by brill » February 12th, 2024, 12:11 pm

Victini378 wrote: February 10th, 2024, 2:58 am...
As far as I can see, this bug still exists? :) Is there hope of a fix, or must we resign ourselves to using the switch? :(
As far as I know this bug has not been fixed. postal2201 did not have this bug, and I don't have the equipment to test it.
Dev console: SCPH-7502 + Xplorer with custom MultiRom firmware
Dev PC: Windows 98 SE, Celeron at 633MHz, 128MB RAM, 20GB HDD

Victini378
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Joined: Feb 08, 2024
PlayStation Model: SCPH-9002

Post by Victini378 » March 2nd, 2024, 11:17 am

brill wrote: February 12th, 2024, 12:11 pm
Victini378 wrote: February 10th, 2024, 2:58 am...
As far as I can see, this bug still exists? :) Is there hope of a fix, or must we resign ourselves to using the switch? :(
As far as I know this bug has not been fixed. postal2201 did not have this bug, and I don't have the equipment to test it.
Ah OK. ;) But does this bug happen on all PSXs? From a postal2201 video on YouTube it doesn't seem to since it starts the music player

Victini378
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What is PSXDEV?
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PlayStation Model: SCPH-9002

Post by Victini378 » March 2nd, 2024, 11:21 am

Here is the video of postal2201 where he starts the music player in a PSone:

postal2201
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Post by postal2201 » March 18th, 2024, 10:56 pm

Testing the music player on SCPH-1000 with PsNee V8

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