github.com/kalymos.PsNee
1
0
Fork 0
mirror of https://github.com/kalymos/PsNee.git synced 2026-05-10 09:05:46 +00:00
Code Issues Releases Wiki Activity

Update README.md

Browse Source
This commit is contained in:
kalymos
2026-03-20 20:31:33 +01:00
committed by GitHub
parent 2dbf99c7e1
commit 541e52bc34
1 changed files with 29 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
README.md
View File

@@ -1,29 +1,40 @@
# PSNee V9.0
THE modechip supports the largest number of Playstation 1 variants, and the largest number of microcontrollers
# For all useful information consult the ![Wiki](https://github.com/kalymos/PsNee/wiki)
This modchip supports the widest range of PlayStation 1 models and the largest variety of microcontrollers.
For all useful information, please consult the [Wiki](https://github.com/kalymos/PsNee/wiki).
![Logo](/images/PSNee-9.0-logo.png)
## Features
- Remove Disk Region Protection
- Patch BIOS
- A specific library for card support, to solve the fuse setting problem.
- The mode does not take care of changing PAL <-> NTSC video output (in other words if you use a Japanese console and you put European games, or in older European models you use American or Japanese games... the display will not be correct)
- Removes Disc Region Protection.
- BIOS Patching.
- Specific library for board support to solve fuse setting issues.
> [!IMPORTANT]
> **Video Signal Note:** This modchip does not handle PAL/NTSC video signal conversion. Playing games from a different region may result in an incorrect display (e.g., NTSC games on early PAL consoles, or PAL games on NTSC-U/C or NTSC-J consoles).
>
> *Note: European models from SCPH-7002 onwards typically handle NTSC signals correctly without display issues, but SCPH-102 requires a BIOS patch.*
>
> See the **NTSC/PAL Display Mismatch** example at the bottom of the page.
## Supported Playstation 1
All US models, all European models, and the Japanese models.
## Supported platforms
- ATmega328(A/P/PA) @16Mhz
- ATmega168(A/P/PA) @16Mhz
- Atmega32U4 @16Mhz
- ATtiny25/45/85 @8Mhz no BIOS patch!
## Supported PlayStation 1
All models are supported.
## Supported Platforms
- ATmega328(A/P/PA) @16MHz
- ATmega168(A/P/PA) @16MHz
- ATmega32U4 @16MHz
- ATtiny25/45/85 @8MHz (Note: No BIOS patch support!)
> [!CAUTION]
> **BIOS Patching:** Timing for PB-series (328PB/128PB) is currently unoptimized.
> For stable BIOS patching, use A/P/PA or 32U4 variants.
> **BIOS Patching:** PB-series (328PB/128PB) is currently unoptimized.
> For stable BIOS patching, please use A/P/PA or 32U4 variants.
### NTSC/PAL Display Mismatch
## Model that I personally tested
![test](images/test-mat.png)
Example of gray image
Typical result when playing a game from a different region without a signal converter.
![gray](https://github.com/kalymos/PsNee/blob/master/images/issue/gray-screens.png)
### Verified Hardware (Personal Test Collection)
![test](images/test-mat.png)
From left to right: NTSC-J, PAL, and NTSC-U/C & Asia models.