新型纯硬件看门狗电路设计分析研究

详细信息    查看全文 | 推荐本文 |

	英文篇名：Analysis and analysis on the circuit design of a new type of pure hardware watchdog 作者：谷智明 英文作者：Gu Zhiming;Guangzhou Haige Communications Group Co., Ltd.; 关键词：看门狗 ; 死机 ; 复位 英文关键词：watchdog;;crash;;reset 中文刊名：WXHK 英文刊名：Wireless Internet Technology 机构：广州海格通信集团股份有限公司; 出版日期：2019-04-10 出版单位：无线互联科技 年：2019 期：v.16;No.155 语种：中文; 页：WXHK201907052 页数：2 CN：07 ISSN：32-1675/TN 分类号：127-128

摘要

看门狗电路是电子电路中一种非常常见的电路,常用的看门狗电路在喂狗进程工作,CPU死机的状态时,可以重新复位CPU,防止CPU跑飞。但是在一些极端条件下,看门狗进程也会挂死,例如温度过高等,此时看门狗无法重启CPU,设备死机。文章提出一种全新的看门狗电路,解决软件设备完全死机后CPU的复位问题。
        Watchdog circuit is a kind of very common circuit in electronic circuit. The commonly used watchdog circuit can reset the CPU, to prevent the CPU from running when the dog is feeding the process and the CPU is dead. However, in some extreme conditions, the watchdog process will also hang up, such as excessive temperature, etc. when the watchdog cannot restart the CPU, device crash. In this paper, a new watchdog circuit is proposed to solve the reset problem of CPU after the software device is completely dead.

引文