ELECTRONIC DEVICE AND IMAGE FORMING APPARATUS

摘要

An electronic device includes volatile memory, flash memory, and a CPU. The volatile memory includes a first actual data region that records actual data and a first log region that records update information including update data used for updating the actual data. The flash memory includes blocks and undergoes block unit initialization when writing is to be performed thereto. The blocks each include a second actual data region that records actual data and a second log region that records update information written from the first log region. The CPU writes update information corresponding to update data to the first log region when updating actual data using the update data. At a preset specific timing, the CPU collects update information recorded in the first log region, writes the collected update information to the second log regions in accordance with a specific order, and subsequently initializes the first log region.

主权项

1. An electronic device comprising:
a volatile memory including
a first actual data region configured to record actual data therein, anda first log region configured to record one or more pieces of update information therein, each including at least update data used for updating the actual data recorded in the first actual data region; a flash memory that includes a plurality of blocks and that is configured to undergo initialization in block units when either or both of the actual data and the update information are to be written thereto, each of the blocks including
a second actual data region configured to record at least a portion of the actual data therein, anda second log region configured to record update information therein that is written from the first log region; and a CPU configured to
write each of the pieces of update information to the first log region when updating the actual data in the first actual data region using update data corresponding to the piece of update information, andat a preset specific timing, collect one or more of the pieces of update information recorded in the first log region, write the pieces of update information that are collected to the second log regions in accordance with a specific order, and subsequently initialize the first log region.