Patent · US Active

Automatic firmware rollback

US11176254B2 · kind B2 · utility

3Cited by

13References

17Claims

0Family size

Assignee

NXP USA, Inc. · US

Inventors

Stefan Singer · Vaterstetten, DE
Osvaldo Israel Romero Cortez · Munich, DE
Guillaume Perret · Unterföhring, DE

Key dates

Filing date	Jul 3, 2019
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Sep 14, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/74
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Disclosed are various embodiments for implementing automatic firmware rollbacks after a configured number of attempts to execute the latest firmware update associated with an electronic computing unit have occurred. In a computing device, such as an electronic computing unit, a watchdog automatically generates a system reset in response to a software fault. A reset counter is configured to count a number of system resets generated by the watchdog. In response to the occurrence of the watchdog, a configurable threshold value associated with a threshold data record is compared with the value associated with the reset counter. In response to a determination that the threshold value associated with the threshold data record is greater than or equal to the value associated with the reset counter, a rollback application is executed such that the rollback application performs a swap of a first version of a firmware with a second version of the firmware.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.