DC-SCI Debug Interposer

Copyright (c) 2026 Antmicro

Overview

This project includes desing files for a printed circuit board that can be connected between DC-SCM (BMC) unit and host (server) platform that is controlled by the BMC. The board exposes all relevant IO interfaces provided by the DC-SCI rev.2.x. in order to streamline the DC-SCM software development and aid the server platform (HPM) bringup. All single-ended signals are exposed on 2.54 mm headers to simplify the debugging setup. The on-board SOP-16 sockets provide an easy way for BIOS injection. The DC-SCI Debug Interposer board also exposes two USB headers connected to the PCIE_HPMROOT_5 interface compatible with HPM Common Circuit Type 1 Design Specification.

Key features

• Compatible with DC-SCM 2.x
• All single ended DC-SCI signals exposed on 2.54 mm (0.1 inch) pin headers
• Two sockets for SPI Flash memories with BIOS image
• 2-port USB controller connected to DC-SCI PCIE_HPMROOT_5 (assembly option)
• 68 x 90 mm (2.67 x 3.54 inch) PCB outline

Project structure

The main directory contains KiCad PCB project files, the LICENSE, and this README, and the img directory contains graphics for this README.

License

This project is licensed under the Apache-2.0 license.