| 摘要 |
A program updating method is provided for a built-in ROM. First, a cable 9 is used to connect a connector 5 of an EVA board 1 and a connector 11 of a ROM writer 10. Next, an external start-up program (BIOS) of an external start-up ROM 13 is started to initialize the system. Then, a ROM writer program stored in the external start-up ROM 13 is developed onto a RAM 4 of the system, and the process is moved thereto. Next, the ROM writer program maps a data ROM 14 at addresses where the external startup ROM 13 existed, and copy master data in the data ROM 14 to the RAM 4. The ROM writer program updates a flash ROM 3 with the master data that has been copied to the RAM 4.
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