基于CPLD与SGPIO协议的服务器硬盘状态显示系统设计  

Design of Server Hard Disk Status Display System Based on CPLD and SGPIO Protocol

作　　者：夏伟田 蔡昌新[1] XIA Wei-tian;CAI Chang-xin(School of Electronics and Information,Yangtze University,Jingzhou 434023,Hubei)

机构地区：[1]长江大学电子信息学院,湖北荆州434023

出　　处：《电脑与电信》2023年第8期94-97,共4页Computer & Telecommunication

摘　　要：介绍了服务器CPU检测硬盘状态中BMC到硬盘这一通信过程,并通过CPLD芯片编程实现解析背板上Expander芯片发出的SGPIO信号,来控制对应的GPIO高低电平的输出,点亮不同的LED灯来显示硬盘状态;同时,展示了SGPIO协议在数据传输中速度快、稳定性高的特点。This paper introduces the communication process of BMC to hard disk in the server CPU detection of hard disk status,and analyzes the SGPIO signal emitted by the Expander chip on the backplane through CPLD chip programming,controls the output of the corresponding GPIO high and low level,and lights up different LED lights to display the hard disk status.At the same time,it shows that the SGPIO protocol has the characteristics of fast data transmission and high stability.

关 键 词：服务器 CPLD SGPIO BMC 

分 类 号：TN791[电子电信—电路与系统]