Method and system to self-test single and multi-core CPU systems
US7463992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2006 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Sep 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, article of manufacture, and system, the method including, in some embodiments, performing an in-system (or in-the-field) self-test on a first core of a multi-core (or multi-CPU) processor to obtain at a value for at least one operational parameter of the first core, storing the value for the at least one operational parameter of the first core, testing, under control of the first core, at least one of a remaining set of cores of the multi-core processor to determine a value for the at least one operational parameter for the at least one core of the remaining set of cores, and testing, under control of the at least one core of the remaining set of cores, the first core to determine a value for the at least one operational parameter for the first core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.