Memory Partitioning in AUTOSAR Compliant Functional Safety Projects Aptiv Components India Pvt, Limited

Format:

Book

Conference/Event

Author/Creator:

G, Venkatesh, author.

Contributor:

Uppara, Vamsi Krishna

Conference Name:

Symposium on International Automotive Technology (2021-09-29 : Pune, India)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

In automotive systems that include one or more electrical and/or electronic (E/E) systems, it's imperative that utmost care is given to the functional behavior at all times so as to reduce the probability of their malfunctioning. As there is a probability that the deviation can result in harm, adherence to ISO-26262 is mandatory. One such important safety requirement is Freedom From Interference(FFI). FFI for memory (mainly volatile memory- RAM) is under focus here. The intention is to prevent corruption/unintended modification of safety critical data (ASIL- A,B,C or D) by QM components. In automotive domain, the increasing complexity of modern vehicles and especially their E/E systems has made strides towards AUTOSAR projects, making them prevalent.This paper presents a method to partition RAM memory in such AUTOSAR projects, by activating the Memory Protection Unit(MPU) using the AUTOSAR configuration tool. The partitioned software can thus help achieve FFI, adhering to Functional Safety. This paper also has pointers on exception debugging, to know the root cause of an unintended execution path which can further help in improving the quality and functionality

Notes:

Vendor supplied data

Publisher Number:

2021-26-0014

Access Restriction:

Restricted for use by site license