[](https://github.com/xboxoneresearch/ASPECT2-PCB/actions/workflows/build_pcbs.yml) [](https://github.com/xboxoneresearch/ASPECT2-PCB/actions/workflows/build_stm32_fw.yml) [](https://github.com/xboxoneresearch/ASPECT2-PCB/releases) # ASPECT2 PCB Development board for Xbox One / Xbox Series consoles, based mostly on [blurry PCB images](https://xboxoneresearch.github.io/wiki/hardware/facet/#external-pcb). Allows for [POST-Code](https://xboxoneresearch.github.io/wiki/hardware/post/) monitoring (via I2C) and reading flash via SPI. On some development kits, there are more features available. See [Functionality](#functionality) for more infos    This repo contains: * KiCad files for the PCB / schematics * [EEPROM template](./eeprom/) for FT_PROG * [STM32 firmware](./firmware/) ## Functionality | Functionality | Description | Tested / Working | Notes | | ------------- | ---------------------- | ------------------ | --------------------------------------------------- | | SPI | Reading eMMC flash | ✅ | Could also support reading SPI NOR on series-family | | POST | POST-Code display | ✅ | STM32 renders codes to OLED display | | JTAG | Southbridge JTAG | ✅ | Devkit exclusive | | I2C | SMBus communication | ❌ | Requires bitbanging driver @ libaspect2 (TODO) | | SWO | ARM Single-Wire-Output | ❌ | No success, Devkit exclusive (?) | | UART (KRNL) | Kernel Debugging | ✅ | Devkit exclusive | | UART (SMC) | SMC/SB Debugging (?) | ❌ | No success, likely Devkit exclusive | * Devkit exclusive: Requires specific flavor of bootloaders or certain [Certificate capabilities](https://xboxoneresearch.github.io/wiki/security/certificates/#capabilities). ### Software There are two main repos with support software for this board. - [dsmc-rs]() - A windows x64 tool that makes use of a proprietary DLL to read flash via SPI. Also supports reading **Expected1SMCBLDigest** from flash controller. - [libaspect2](https://github.com/xboxoneresearch/libaspect2) - Attempt at an open source library ## Directory structure ```text |- 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 ├── 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](https://jlcpcb.com/impedance). ### Manufacturing files Generally, [Github Pages](https://xboxoneresearch.github.io/ASPECT2-PCB/) hosts the most up-to-date manufacturing files. These are also available for download on the [Releases](https://github.com/xboxoneresearch/ASPECT2-PCB/releases)-page. Here is a list of the most important ones. - Bill of materials (BOM): [ibom (Interactive HTML)](https://xboxoneresearch.github.io/ASPECT2-PCB/Assembly/ASPECT2-ibom.html), [HTML](https://xboxoneresearch.github.io/ASPECT2-PCB/BoM/Generic/ASPECT2-bom.html), [CSV](https://xboxoneresearch.github.io/ASPECT2-PCB/BoM/Generic/ASPECT2-bom.csv) - Schematic: [PDF](https://xboxoneresearch.github.io/ASPECT2-PCB/Schematic/ASPECT2-schematic.pdf) - Datasheets: [Here](https://xboxoneresearch.github.io/ASPECT2-PCB/Browse/ASPECT2-navigate_Schematic_docs.html#basic_download_datasheets) We recommend JLCPCB, due to the specific Layer-Stackup that was used. JLCPCB MFG files - [Gerbers](https://xboxoneresearch.github.io/ASPECT2-PCB/Manufacturers/ASPECT2-_JLCPCB_compress.zip) - [Pick and place / CPL (CSV)](https://xboxoneresearch.github.io/ASPECT2-PCB/Manufacturers/JLCPCB/ASPECT2_cpl_jlc.csv) - [BOM (CSV)](https://xboxoneresearch.github.io/ASPECT2-PCB/Manufacturers/JLCPCB/ASPECT2_bom_jlc.csv) ### Software / plugins * [KiCad 9.0](https://www.kicad.org/download/) * [KiCad JLCPCB tools extension](https://github.com/Bouni/kicad-jlcpcb-tools) (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](https://ftdichip.com/wp-content/uploads/2021/08/CDM212364_Setup.zip) * [FT_PROG](https://ftdichip.com/utilities/#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](./eeprom/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/](./firmware/) for build & flash instructions. ## References - [AssemblerGames](https://web.archive.org/web/20250327165519/https://assemblergames.org/viewtopic.php?p=870129) - first mentioning of FACET2 PCB - [FACET on xosft wiki](https://xboxoneresearch.github.io/wiki/hardware/facet/) - Technical documentation of FACET port - [POST code on xosft wiki](https://xboxoneresearch.github.io/wiki/hardware/post/) - Original MAX6958A circuit and error codes - [POST code database](https://errors.xboxresearch.com)