Durango POST-Code reader via RasPi Pico

This software flashed to the Raspberry Pi Pico allows for monitoring of POST codes, which is useful for fault diagnosis on the hardware.

• Durango POST-Code reader via RasPi Pico
  • Supported consoles
  • Technical infos:
  • Usage
    • How to interact ?
  • Videos / Tutorials
  • Connection diagram
    • Optional: 0.91" OLED Display (SSD1306)
  • Screenshots
  • Develop

Supported consoles

Via FACET connector

• ✅ Xbox One PHAT
• ✅ Xbox One S
• ✅ Xbox One X

Via AARDVARK connector

• ✅ Xbox Series S
• ✅ Xbox Series X

Technical infos:

• POST bus on Xbox One - Wiki page

• List of error codes

Usage

Note

Starting with firmware v0.3.0, some obsolete functionality was removed in favor of XboxPostcodeMonitor.

See #11 for details.

• Download latest release

• Flash the firmware onto the Pi Pico (Pi Pico: durango_post_monitor.uf2, Pi Pico 2: *_pico2.uf2)

  • Disconnect Pi Pico from your PC
  • Hold the BOOTSEL button
  • Plug in Pi Pico to the PC again
  • Release the BOOTSEL button
  • A removable storage device should appear in your file explorer
  • Drag the extracted *.uf2 file onto the Removable storage medium
  • The removable storage should automatically disappear
  • You are ready to go!

• Listen on the exposed USB Serial interface, Baudrate: 115200 via Serial monitor software

  • XboxPostcodeMonitor is recommended
    • Has errorcode auto-updating from https://errors.xboxresearch.com
    • Multi-console compatibility
  • PuTTY or any other generic serial monitor software
    • PuTTy: Check this Link
    • Tip: Make use of Saving a session configuration, no need to re-type Serial-port and baudrate each time!
    • Downside: No multi-console functionality, no errorcode updating

How to interact ?

Note

When you have no console connected or incorrectly wired, the Serial terminal won't show any output.

To verify that your Pico is working, hit CTRL+C to enter the menu, then type help, press [ENTER] To resume POST monitoring, type post and hit [ENTER].

Important

The console needs to be at least receiving standby power to start the Southbridge. If, due to a hardware fault this is not possible, the underlying issues have to be eliminated first, to be able to use this tool.

Check Screenshots to see how the sofware output looks.

Generally:

• On Startup, it directly goes into POST monitoring mode.
• If you hit "CTRL+C" you will be brought into the REPL-menu.
• Here you can set various options
• Check out the "help" command.

Jump to the Connection diagram

Videos / Tutorials

Check out the videos from @craftbenmine

and @ACE Console Repairs

Connection diagram

Caution

LOOK AT THE PIN MARKINGS ON THE FACET HEADER before soldering!

Pin 1 is marked with a white dot, pins 2, 25, 26 by numbers!

FACET connector orientation DOES CHANGE between console revisions!

Important

For Xbox Series S / X use the AARDVARK port (shown in the diagram).

The FACET port on these consoles require additional components to be populated for it to work.

Pi Pico -> FACET / AARDVARK

• SDA: Pi Pico Pin 1 (GP0) -> FACET Pin 26 (AARDVARK Pin 3 on Series S/X)
• SCL: Pi Pico Pin 2 (GP1) -> FACET Pin 25 (AARDVARK Pin 1 on Series S/X)
• GND -> GND

Thx to @ACE-AU for the new diagram

Optional: 0.91" OLED Display (SSD1306)

Model: SSD1306 0.91" 128x32 pixels, monochrome

SSD 1306 module photo

• Pi Pico 3V3 -> Display VCC
• SDA: Pi Pico Pin 9 (GP6) -> Display Pin SDA
• SCL: Pi Pico Pin 10 (GP7) -> Display Pin SCL
• GND -> GND

NOTE: This image is showing firmware v0.2.3 - starting with v0.3.0 POST code names are not shown on display anymore, see note in Usage.

Screenshots

This is showing the output of firmware v0.2.0.

NOTE: This screenshot is showing firmware v0.2.3 - starting with v0.3.0 POST code names are not shown via serial anymore, see note in Usage.

Develop

• Use VS Code as your IDE / Code Editor
• Install the extension PlatformIO
• Edit the code
• Change to the PlatformIO-tab in VS Code and choose Upload and Monitor to compile and upload the code