OV-SW-COPROC-ARCH · v0.1 · draft · 2026-08-08
| Doctype | Software Manual |
|---|---|
| Doc id | OV-SW-COPROC-ARCH |
| Product line | openvvvf |
| Applies to | openvvvf-control-module, software-target-safety-coprocessor |
| Version | 0.1 |
| Date | 2026-08-08 |
| Status | draft |
| Placeholder | True |
| Description | STM32G474RCTx safety-coprocessor software architecture, independent monitoring, and inter-MCU interface. |
| Nav order | 421 |
| Normative refs | OV-SAF-HARA-CORE, OV-SW-MAINMCU-ARCH, OV-CA-SWM-INDEX |
Architecture
Placeholder - This document will define the safety-coprocessor software architecture once the dual-MCU design is finalized. The old SWAD explicitly excluded this content.
Planned sections
- Role and independence from main MCU
- Watchdog and challenge/response monitoring
- Independent sensor acquisition
- 1oo2 gate-drive power kill
- Inter-MCU communication and fault reporting
- FRAM fault logging
- Firmware update and validation strategy
- ASIL decomposition rationale