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Start control device and method for micro-controller

一种开机控制、微控制器的技术，应用在数据复位装置等方向，能够解决无法区分复位信号、无法执行热开机系统重新启动等问题

Inactive Publication Date: 2007-10-03
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the internal reset register (RESET REGISTER) connected to the reset pin (RESET PIN) of the microcontroller cannot distinguish the type of reset signal, that is, as long as the reset pin receives the reset signal, that is, after the reset register receives the reset signal, the microcontroller The controller can only perform the boot action in the cold boot mode, and cannot perform the time-saving hot boot system restart

Method used

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  • Start control device and method for micro-controller

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Embodiment Construction

[0016] Please refer to FIG. 1 and FIG. 2 , the preferred embodiment of the boot control device of the microcontroller of the present invention includes a hot boot reset circuit 10 , a cold boot signal detection circuit 20 and a delay circuit 30 . The microcontroller 40 includes a reset pin P2 and a detection pin P4.

[0017] The hot boot reset circuit 10 includes a resistor R1, a capacitor C1, a diode D1 and a reset switch S1. The resistor R1 and the capacitor C1 are connected in series between a power supply Vcc and ground. One end of the reset switch S1 is connected to the anode of the diode D1, and the other end is grounded. The cathode of the diode D1 is connected to the power supply Vcc. The common point between the resistor R1 and the capacitor C1 is connected to the common point between the diode D1 and the reset switch S1 and outputs a reset signal to the reset pin P2. The reset switch S1 is a normally open switch.

[0018] The cold boot signal detection circuit 20...

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Abstract

The present invention relates to a start-up control device of microcontroller. Said start-up control device includes the following several portions: a thermal start-up reset circuit, a cold start-up signal detection circuit and a delay circuit. Said microcontroller includes a reset pin and a detection pin. Besides, said invention also provides the start-up control method of microcontroller.

Description

【Technical field】 [0001] The invention relates to a start-up control device and method of a microcontroller, in particular to a start-up control device and method capable of identifying cold and hot start-up of a microcontroller. 【technical background】 [0002] Warm boot (warm boot, Warm boot / Push Button Reset) refers to restarting the system when the system is powered on; cold boot (cold boot, Cold boot / Power ON Reset) refers to restarting the system by pressing the system power button. start up. [0003] In the microcontroller (MCU, Micro-Controller Unit) application system, cold boot executes the boot program after the entire system is powered on (Power ON), including microcontroller self-test, memory test and peripheral interface (I / O Port) test Wait for the system hardware confirmation program and the relevant preset process of software download; and hot boot is often used to restart the system after performing system parameter setting and software upgrade programs. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/24
CPCG06F1/24
Inventor 郭恒祯
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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