基于FPGA的智能串行通信板卡的设计与实现  

Design and implementation of intelligent serial communication card based on FPGA

作　　者：王剑博[1] 胡晓吉[1] 

机构地区：[1]华北计算技术研究所加固计算机产品事业部,北京100083

出　　处：《现代电子技术》2015年第7期39-42,共4页Modern Electronics Technique

摘　　要：串行通信模块是每台计算机所必须的对外通信模块的一部分,但由于串行通信协议较多,串行接口也较多,所以,往往这部分模块需要占用较多的体积和资源。将RS 232,RS 422和RS 485三种串行协议和同异步两种串行传输方式通过FPGA兼容于一块智能通信板卡上,通过上位机控制界面的控制,完成对8路串行通道的配置,并介绍了板卡的总体结构及硬件设计,展示了上位机控制界面的通信效果。结果表明,该智能串行通信卡能够很好地完成多协议多方式的串行通信之间的切换,达到了预期的效果。Serial communication module is a part of external communication module which is necessary for every computer. However,because of too many serial communication protocols and interfaces,more resources and volumes are always occupied by the serial communication module. In this paper,three serial communication protocols（RS-232,RS 422 and RS 485）are compatible with two serial communication modes （UART and HDLC） into an intelligent communication board through FPGA. The configuration of eight serial communication channels is completed under the control of the control interface of upper computer. The overall structure and the hardware design of the communication board are introduced in this article. At last,the communication result of the upper computer control interface is displayed. The conclusion proves that this intelligent serial communication board can execute the switching between multi-protocol and multi-mode,and meet the requirements of different kinds of serial communication as expected.

关 键 词：串行通信 串行协议 串行方式 智能串行通信卡 

分 类 号：TN911-34[电子电信—通信与信息系统]