Method for preserving data through a processor softboot
US6513075B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1999 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | Aug 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4401
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for preserving data through a softboot process is presented. Areas in a device DRAM are reserved for data structures generated during execution of a boot code stored in the device ROM. A communications channel between the device and an external device is established and data structures related to the communications channel status and startup diagnostics are written to reserved areas of DRAM. Firmware stored on an external device is downloaded to a different area of DRAM. After a softboot, the data structures in DRAM are accessed by firmware enabling the communications channel to be maintained and startup diagnostics data to be utilized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.