Summary
Key results
RTM migrated to the SAMC21 microcontroller without loss of functionality
AUTOSAR integration and software architecture modernization
Supply continuity in an era of semiconductor scarcity
In 2021, the global automotive industry faced an unprecedented challenge: a chip shortage that slowed production and forced large-scale changes to electronic system architectures. For the client – a global supplier of components for internal-combustion and electric vehicles – rapid adaptation of a key module to a market-available hardware platform became critical.
The goal was not only to preserve functionality, but also to modernize the device – improving energy efficiency, adopting modern communication protocols, and preparing the design for future generations of e-mobility solutions. The project had to be delivered without disrupting ongoing production and while maintaining full compliance with OEM requirements.
End-to-end migration and modernization of the RTM module
Sii Poland delivered the complete development lifecycle – from architecture design to final verification.
Scope included:
- Updating the RTM software architecture
- Implementing peripheral drivers for the SAMC21 microcontroller
- Integrating the Vector CAN stack, Boot Manager, Bootloader, and the AUTOSAR DEM module
- Porting middleware and application layers
- Executing unit, integration, and functional testing
- Optimizing power-management and power-supply logic
- Migrating communication from K-Line to MS-CAN and modernizing the TPMS system
This approach enabled RTM to transition to the new hardware architecture without production-cycle disruption and while meeting all OEM requirements.
Future readiness and technological resilience
The project demonstrated that technology flexibility is now a cornerstone of supply-chain resilience in the automotive industry. RTM modernization allowed the client to maintain delivery continuity for key OEM partners despite constrained chip availability – and prepared the platform for next-generation e-mobility solutions.
A new module variant designed for integration with electric and hybrid vehicle architectures improves energy management and in-vehicle communication. The initiative became a practical example of technological adaptability – showing that innovations delivered under time pressure can set new standards in automotive engineering.