发控设备CSD串口板卡上电复位可靠性研究  

Research on Reliability of Power-on Reset of CSD Serial Board in Launch Control Equipment

作　　者：张帅 丁立平 王志德 唐晓峰 范文晶 ZHANG Shuai;DING Liping;WANG Zhide;TANG Xiaofeng;FAN Wenjing(Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China)

机构地区：[1]上海机电工程研究所,上海201109

出　　处：《空天防御》2020年第2期29-36,共8页Air & Space Defense

摘　　要：针对在发控设备的执控组合PC104计算机系统中使用多接口模块平铺设计技术时,计算机化标准数据(computerized standard data,CSD)串口板卡偶发性出现上电复位异常问题,设计了一种CSD串口板卡上电复位的滤波算法,增加硬件复位信号检测电路并进行了仿真和试验。仿真和试验结果表明,所采用的软件滤波算法和硬件电路设计能杜绝上电复位异常现象的发生,提高了发控设备串口通信的可靠性。Due to the use of multi-interface module tile design technology in the PC104 computer system of Executive Control Device in Launch Control Equipment,the computerized standard data(CSD)serial board occasionally has a power-on reset problem.A filtering algorithm for the CSD serial board power-on reset has been designed.A hardware reset signal detection circuit was added,which was simulated and tested.The simulation and test results show that the software filtering algorithm and hardware circuit design can prevent the abnormal occurrence of power-on reset and improve the reliability of serial communication of Launch Control Equipment.

关 键 词：串口板卡 上电复位 滤波算法 复位信号检测 串口通信 

分 类 号：TN406[电子电信—微电子学与固体电子学]