This paper presents an architecture that enables secure partitioning and updating of fielded systems with augmented or entirely new features without compromising reliability or security of the existing platform.
This paper presents an architecture that enables secure partitioning and updating of fielded systems running on Analog Devices' Blackfin microprocessors. The goal is to allow the addition of new features or replacement of existing functionality without compromising the reliability or security of the existing platform, which is critical for automotive in-cabin applications.
The proposed architecture is based on the reliability and security model of the Green Hills Software INTEGRITY real-time operating system (RTOS). It leverages the Blackfin's Memory Management Unit (MMU) to provide time and space partitioning of processor resources, ensuring that upgrades do not consume resources required by other system components.
Blackfin processors are designed for control and signal processing applications, including automotive in-cabin systems like hands-free kits, navigation systems, and multimedia systems.
The Blackfin BF533 part can achieve 750 MHz operation at 1.45 volts.
The Blackfin BF533 is roughly three times more energy-efficient than the Texas Instruments TMS320C5501.