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Method for factory/field firmware hub diagnostics

IP.com Disclosure Number: IPCOM000074618D
Publication Date: 2005-Feb-23
Document File: 3 page(s) / 296K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for factory/field firmware hub diagnostics. Benefits include improved functionality, improved performance, improved ease of implementation, and improved cost effectiveness.

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Method for factory/field firmware hub diagnostics

Disclosed is a method for factory/field firmware hub diagnostics. Benefits include improved functionality, improved performance, improved ease of implementation, and improved cost effectiveness.

Background

              When the basic input/output system (BIOS) in a firmware hub is corrupt, the printed circuit board the hub is attached to becomes nonfunctional. Many different problems can cause this type of failure. Conventionally, diagnosing the cause is not possible in the field. The cause can be determined in the factory using expensive time-consuming tools to capture and compare the BIOS data to the original firmware source (gold firmware). A time- and cost-effective solution is required.

Description

              The disclosed method is factory/field firmware hub diagnostic. A socket slips over the surface-mounted J-lead firmware hub, and makes contact with its pins. In the socket top is a molded firmware hub socket where a gold firmware hub is inserted. ID-select lines from each firmware hub are wired to jumpers or switches outside the socket. The surface-mounted firmware hub is configured to an ID that is higher than its original ID (example from 00 to 01). The hub in the top of the socket has an ID set to the original ID of the surface-mounted firmware hub. The gold firmware hub assumes the ID of the surface-mounted firmware hub. The board accesses the gold image firmware hub and retrieves data from it. If the board functio...