Implementation of a Basic Single-Microcontroller Monitoring Concept for Safety Critical Systems on a Dual-Core Microcontroller Infineon Technologies UK Limited

Format:

Book

Conference/Event

Author/Creator:

Brewerton, Simon, author.

Conference Name:

SAE World Congress & Exhibition (2007-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

Electronic Control Units of safety critical systems require constant monitoring of the hardware to be able to bring the system to a safe state if any hardware defects or malfunctions are detected. This monitoring includes memory checking, peripheral checking as well as checking the main processor core. However, checking the processor core is difficult because it cannot be guaranteed that the error will be properly detected if the monitor function is running on a processing system which is malfunctioning. To circumvent this issue, several previously presented monitoring concepts (e.g. SAE#2006-01-0840) employ a second external microprocessor to communicate with the main processor to check its integrity. This paper will present a concept which maps the functions of the external monitoring unit into an internal second processing core which are frequently available on modern, 32bit, monolithic, dual-core microcontrollers

Notes:

Vendor supplied data

Publisher Number:

2007-01-1486

Access Restriction:

Restricted for use by site license