KR970029026A

KR970029026A - Micom initialization signal generation circuit during micom congestion

Info

Publication number: KR970029026A
Application number: KR1019950042199A
Authority: KR
Inventors: 김선찬; 최현석
Original assignee: 이영서; 동양매직 주식회사
Priority date: 1995-11-20
Filing date: 1995-11-20
Publication date: 1997-06-26

Abstract

본 발명은 마이컴을 이용한 전자회로에 관한 것으로서, 특히 마이컴으로 신호가 폭주시 마이컴을 초기화 시키도록 한 마이컴 신호 폭주시 마이컴 초기화 신호발생 회로에 관한 것인 바, 종래에는 마이컴으로 신호가 폭주할 경우에는 특별한 조작이 없이 폭주상태를 게속 유지하도록 되어 사용자가 불필요하게 전원전압을 차단 후 재가동시켜 마이컴을 초기화시키게 되고, 또한 전원전압을 ON/OFF를 계속하게 되어 기기의 수명을 단축시키게 되는 제반 문제점을 내포하게 된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic circuit using a microcomputer, and more particularly, to a microcomputer initialization signal generation circuit during a microcomputer signal congestion, in which a microcomputer initializes the microcomputer signal. It keeps the congestion status without any special operation, and the user unnecessarily cuts off the power voltage and restarts it to initialize the microcomputer, and also keeps the power voltage ON / OFF and shortens the life of the device. Done.

본 발명은 종래 기술이 갖는 문제점을 해소 하고자 안출된 것으로서, 마이컴의 메인 프로그램에서 일정한 구형파를 발생시켜 고주파 통과 필터에서 고주파 성분을 필터링시켜 지연회로를 통과시켜 트랜지스터를 턴온시켜 정상적인 동작을 실행하게 되고 마이컴으로 폭주신호가 인가될때 마이컴에서 구형파를 발진하지 아니하므로서 전원전압에 의해 리셋신호 발생회로부에서 리셋신호 "H" 펄스파를 출력하여 마이컴으로 신호를 인가하여 시스템을 초기화 시키는데 그 특징이 있다.The present invention has been made to solve the problems of the prior art, by generating a constant square wave in the main program of the microcomputer to filter the high-frequency components in the high-pass filter to pass through the delay circuit to turn on the transistor to perform a normal operation Therefore, when the congestion signal is applied, the microcomputer does not oscillate the square wave, and the reset signal generation circuit part outputs the reset signal "H" pulse wave by the power supply voltage and applies the signal to the microcomputer to initialize the system.

Description

Micom initialization signal generation circuit during micom congestion

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 제1도의 상세회로도,2 is a detailed circuit diagram of FIG.

제3도는 제2도의 각 부분에 대한 파형도.3 is a waveform diagram of each part of FIG.

Claims

When a square wave is generated in the main program of the microcomputer 1 and the square wave is output through the output terminal of the microcomputer 2, the high frequency filter 2 filters the high frequency components to form a sawtooth wave, and the high frequency filter 2 A reset signal generation circuit section 4 for generating an instantaneous " H " pulse wave when the sawtooth wave is converted to " L " via the delay circuit 3 by the output sawtooth wave; A micom initialization signal generation circuit, comprising: a reset signal amplifying section (5) for amplifying a signal of the reset signal generating circuit section (4) and outputting a reset signal of the microcomputer (1).

※ Note: The disclosure is based on the initial application.