SIGNAL PROCESSING CIRCUIT, MICRO CONTROLLER, HOST, AND DEVICE

PROBLEM TO BE SOLVED: To prevent malfunction.SOLUTION: A signal processing circuit 100 comprises a micro controller 200 and a non-volatile memory 102. The non-volatile memory 102 stores a program executed by a processor 202 of the micro controller 200. A loader 206 reads the program from the non-vol...

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Bibliographic Details
Main Authors MIYATA MANABU, OZAWA KAZUMASA
Format Patent
LanguageEnglish
Japanese
Published 24.11.2017
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To prevent malfunction.SOLUTION: A signal processing circuit 100 comprises a micro controller 200 and a non-volatile memory 102. The non-volatile memory 102 stores a program executed by a processor 202 of the micro controller 200. A loader 206 reads the program from the non-volatile memory 102 and writes the same in a volatile memory 204. The loader 206 includes a comparator 220 which compares the program written in the volatile memory 204 with the program stored in the non-volatile memory 102 and detects abnormality.SELECTED DRAWING: Figure 2 【課題】誤動作を抑制する。【解決手段】信号処理回路１００は、マイクロコントローラ２００と不揮発性メモリ１０２を備える。不揮発性メモリ１０２は、マイクロコントローラ２００のプロセッサ２０２が実行するプログラムを格納する。ローダ２０６は、不揮発性メモリ１０２からプログラムを読み出し、揮発性メモリ２０４に書き込む。ローダ２０６は、揮発性メモリ２０４に書き込まれたプログラムを不揮発性メモリ１０２に格納されるプログラムと比較し、異常を検出する比較器２２０を含む。【選択図】図２
Bibliography:Application Number: JP20160099933