Overview

This section describes the software for the SC-OBC Module V1 and how it is organized across the device’s heterogeneous compute resources. Because the module includes multiple processor classes, each has its own section and build, boot, and validation guidance.

The first section covers setup and preparation. In addition to the SC-OBC Module V1, you will need a few items to use the OBC. You will also set up your development environment.

The section on the AMD Versal real-time processors (dual Arm Cortex-R5F) focuses on Zephyr RTOS for flight-critical workloads that require deterministic behavior and predictable scheduling. It covers building and running Zephyr on the R5F cores in lockstep mode.

The section on the AMD Versal application processors (dual Arm Cortex-A72) explains how to build U-Boot and Linux with the Yocto Project, and how to boot from an SD card. It outlines the standard Versal boot flow where PLM hands off to TF-A, then U-Boot loads Linux, and it notes that SD boot is a supported sequence.

The RPU and APU Integration overview explains the roles of Zephyr on the RPU and Linux on the APU, when an application should add the APU, and how the two environments can operate independently or exchange data when required. It introduces OpenAMP, the resource table, Linux remoteproc, RPMsg, and shared memory before presenting the build and usage procedures.