Mechanism for updating firmware of an electronic device

Details Mechanism for updating firmware of an electronic device Mechanism for updating firmware of an electronic device

2005-01-11

2005-01-11

Peikari, B. James (Department: 2186)

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

Loading initialization program

C713S001000, C711S102000, C711S103000, C711S104000, C709S241000, C709S241000, C714S046000, C714S047300

Reexamination Certificate

active

06842858

ABSTRACT:
A system for updating firmware of an electronic device includes a flash memory for storing a system control program to control the electronic device, and a RAM for storing the system control program and a writing control program to perform writing operation that the system program is loaded into the flash memory from the RAM. The system also includes a JTAG interface in conformity with the standard 1149.1 of IEEE (the Institute of Electrical and Electronics Engineers). The system stores the system control program and the writing control program into the RAM, and then executes the writing control program stored in the RAM to load the system control program into the flash memory. Thus, the firmware of the electronic device is updated.

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