XboxHDMI-TR

Open-source alternate firmware for MakeMHz's HD+, based on the Original Xbox 100% Digital HDMI (Prototype) by Ryzee119.

Status: Refactored to build for STM32F0 (HD+), Cerbios V3.1.0 recommended for improved video mode detection.

Programming the HD+

Connect the following wires to program the HD+ (if already installed, using the power from the Xbox motherboard is recommended; do NOT use the 3V3 pin below)...

Pin Pair	Signal	Signal
2 – 1	NC	NRST
4 – 3	NC	NC
6 – 5	GND	NC
8 – 7	SWDIO	SWCLK

Full pinout reference:

Pin Pair	Signal	Signal
2 – 1	3V3	NRST
4 – 3	OSC OUT	TX
6 – 5	GND	RX
8 – 7	SWDIO	SWCLK

Updating firmware with XHDUpdater.xbe (from v0.1.0)

1. Upload all files to your Xbox (e.g. via FTP): firmware_conexant.bin, firmware_focus.bin, firmware_xcalibur.bin, and XHDUpdater.xbe.
2. Run the XBE on your Xbox and follow the on-screen prompts.

XHDUpdater source code: https://github.com/Team-Resurgent/XHDUpdater

Important Notes

• In order to correctly use with Cerbios V3.1.0 + please enable Screenshots in ini file, as this enables communication of widescreen/interlace modes to fw.
• Backup the existing firmware before attempting to use this (use the ST Link V2 for this)
• This firmware is NOT supported by the HD+ creator, so don't got bother MakeMHz for support
• Before attempting to use this, make sure your install works properly with the original FW + patched bios provided by MakeMHz
• Not all features from the original FW are present, bios dependent features like 720p scaling will never be implemented (the adv chip itself doesn't scale the picture).
• RGB will not work in VIC mode, you can modify the FW for that but unless using a patched bios that break the colors
• XBlast will have the wrong colors in VIC mode in 1.0-1.4 mobos. This is not a bug in the FW, but a side effect of how XBlast inits the gpu/encoder (the pixel bus is set to RGB instead of YUV).

To do

• Enhance functionality (on-going)
• Check all video modes render correctly (on-going)

— EqUiNoX