ROM writer has switching device for switching between...

Details ROM writer has switching device for switching between... ROM writer has switching device for switching between...

2006-03-07

2006-03-07

Cao, Chun (Department: 2115)

Electrical computers and digital processing systems: support

Reconfiguration

C713S001000

Reexamination Certificate

active

07010680

ABSTRACT:
A program updating method is provided for a built-in ROM. First, a cable9is used to connect a connector5of an EVA board1and a connector11of a ROM writer10. Next, an external start-up program (BIOS) of an external start-up ROM13is started to initialize the system. Then, a ROM writer program stored in the external start-up ROM13is developed onto a RAM4of the system, and the process is moved thereto. Next, the ROM writer program maps a data ROM14at addresses where the external startup ROM13existed, and copy master data in the data ROM14to the RAM4. The ROM writer program updates a flash ROM3with the master data that has been copied to the RAM4.

REFERENCES:
patent: 6057780 (2000-05-01), Nagakura
patent: 6157559 (2000-12-01), Yoo
patent: 6651887 (2003-11-01), Sehnert
patent: 2001-195246 (2001-07-01), None
Communication from Japanese Patent Office re: counterpart application.

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