Memory electromagnetic interference protection circuit and vehicle electronic equipment

Abstract

A memory electromagnetic interference protection circuit and vehicle electronic equipment are provided; in the daily work, a protection unit (2) outputs a switching signal to control the memory (1) in the write-protected state; when the contents of the memory (1) need to be updated online, the protection unit (2) outputs the switching signal to control the memory (1) in a non-write-protected state, thus preventing the contents of the memory (1) to be overwritten by the serious electromagnetic interference environment, and causing memory content chaos.

Description

Technical field [0001] The invention belongs to the technical field of electromagnetic interference protection circuits, and in particular relates to an electromagnetic interference protection circuit of a memory and vehicle-mounted electronic equipment. Background technique [0002] In-vehicle electronic devices are electronic systems and products used in automobiles to increase the functionality of automobiles. Car electronic equipment includes car audio systems, navigation systems, car information systems and car home appliances. [0003] With the increasing popularity of vehicle electronic equipment, the electromagnetic working environment of vehicle electronic equipment is getting worse and worse. The external configuration firmware memory content of the integrated circuit in the vehicle electronic equipment is prone to confusion in this environment, which leads to the failure of the vehicle electronic equipment and affects the operation of the vehicle electronic equipment. ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a memory electromagnetic interference protection circuit and vehicle-mounted electronic equipment, aiming to solve the problem that the content of the firmware memory of the current vehicle-mounted electronic equipment is confused in the electromagnetic interference environment, resulting in the failure of the vehicle-mounted electronic equipment.

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