Method and apparatus for fault tolerant FOTA update with single backup block write
US9026718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2012 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Dec 24, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0246
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for recovering from an interruption during a Firmware Over-The-Air (FOTA) update is provided. The method includes identifying a missing block of a plurality of blocks to be updated in the first memory, the missing block corresponding to a block being updated when the interruption occurred, copying a backup block into a backup buffer, simulating an application of the FOTA update in a second memory, the simulation including, for each block of the plurality of blocks to be updated, performing a reversible operation on the contents of the backup buffer and an updated block, and updating the backup buffer with the operation result, replacing the missing block with the updated backup buffer, and resuming the FOTA update.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.