ASPECT2

ASPECT2 PCB

Development board for Xbox One / Xbox Series consoles, based mostly on blurry PCB images.

Allows for POST-Code monitoring (via I2C) and reading flash via SPI.

On some development kits, there are more features available.

See Functionality for more infos

Breakout board:

This repo contains:

• KiCad files for the PCB / schematics
• EEPROM template for FT_PROG
• STM32 firmware
• FACET breakout board

Functionality

• Devkit exclusive: Requires specific flavor of bootloaders or certain Certificate capabilities.

Software

There are two main repos with support software for this board.

• dsmc-rs [blocked] - A windows x64 tool that makes use of a proprietary DLL to read flash via SPI. Also supports reading Expected1SMCBLDigest from flash controller.
• libaspect2 - Attempt at an open source library

Directory structure

|- Main Aspect2 PCB
├── eeprom
│   ├── Greybull_FabD+.xml - FT Prog template (official on-board FACET)
│   └── Facet2_fabA+.xml - FT Prog template (derived from onboard FTDI dump)
├── firmware - STM32 firmware
├── pcb - KiCad project (PCB / schematics)
│   └── lib - additional KiCad symbols / footprints

Manufacturing / Development

PCB Stackup

• 4 Layer board (for impedance control) - 1.6mm thickness
• Stackup:
  • F.Cu: Signal
  • In1.Cu: Power (GND)
  • In2.Cu: Power (GND)
  • B.Cu: Signal

This PCB was designed with the target stackup of JLC04161H-3313 (JLCPCB). See JLCPCB - Impedance.

Manufacturing files

Generally, Github Pages hosts the most up-to-date manufacturing files. These are also available for download on the Releases-page.

Here is a list of the most important ones.

• Bill of materials (BOM): ibom (Interactive HTML), HTML, CSV
• Schematic: PDF
• Datasheets: Here

We recommend JLCPCB, due to the specific Layer-Stackup that was used.

JLCPCB MFG files

• Gerbers
• Pick and place / CPL (CSV)
• BOM (CSV)

Building manufacturing files locally (Docker)

Manufacturing files are normally built by CI (see badges above), but you can reproduce that build locally with KiBot's Docker image instead of installing KiCad + KiBot yourself.

docker run --rm -v "$(pwd)":/work --entrypoint /work/docker-entrypoint.sh ghcr.io/inti-cmnb/kicad9_auto_full:latest

This mounts the repo into the container, runs KiBot against .kibot.yml / pcb/ASPECT2.kicad_sch, and copies the results back into output_docker/. Works with Podman too (podman run in place of docker run).

Software / plugins

• KiCad 9.0
• KiCad JLCPCB tools extension (for looking up / syncing JLCPCB part#)

Module bring-up

Before being able to communicate with the device, programming eeprom or regular usage, drivers need to be installed!

• Windows x64
• FTDI Drivers
• FT_PROG (Programming eeprom only)

Programming the eeprom

• Download & install drivers
• Download & open FT Prog
• Connect Aspect2 board
• Click "Scan & Parse" to enumerate connected device (Magnifying glass icon or "Devices -> Scan & Parse")
• Right-click on the found device, hit Apply template
  • Choose Facet2_FabA+.xml
• Click Program (Lightning bolt icon or "Devices -> Program")
• Click Program-button in the dialog box
• Click Close-button, close FT Prog tool
• Re-plug Aspect2 board

Programming the STM32 (POST Code display)

See firmware/ for detailed build & flash instructions.

Thanks

@emoose @OGXHarcroft @cactusduper @TorusHyperV @ShadowLAG @billy @craftbenmine @DonyPS3 @flynnyfoo @jacksomness @Pheeeenoom and everybody else helping and testing along the way

References

• AssemblerGames - first mentioning of FACET2 PCB
• FACET on xosft wiki - Technical documentation of FACET port
• POST code on xosft wiki - Original MAX6958A circuit and error codes
• POST code database