基于FPGA的嵌入式通信系统核心模块设计  

Design of FPGA-based core module for embedded communication system

作　　者：杨胜利[1] 李超[1] 余亮[1] YANG Shengli;LI Chao;YU Liang(Department of Computer,Guangdong University of Science and Technology,Dongguan 523083,China)

机构地区：[1]广东科技学院计算机系,广东东莞523083

出　　处：《现代电子技术》2018年第22期88-91,共4页Modern Electronics Technique

基　　金：广东省教育厅特色创新类项目(2015KTSCX162);广东省教育厅特色创新类项目(2015KTSCX163);广东省教育厅青年创新人才类项目(2016KQNCX186)~~

摘　　要：基于IP核的SpaceWire-PCI通信卡进行通信时,没有考虑传输过程内相位失真问题,其通信效果存在实时性能低、抗干扰性差和通用性低的缺点。据此设计基于FPGA的嵌入式通信系统的通信卡,其整体架构由FPGA模块、以太网88E1111 PHY芯片、MCP2515 CAN控制器等组成。采用FIR滤波器分布式算法处理通信卡信号传输时的内相位失真问题。利用SoPC系统的NiosⅡ集成开发环境设计通信卡软件:设计初始化程序实现FPGA模块中CycloneⅢ3C25F32芯片控制寄存器的配置;设计通信程序实现通信卡中数据信息的发送和接收。实验证明,所设计通信卡通信效果具有实时性高,抗干扰性好及通用性高等优势,能够极大地提高通信效率。The SpaceWire-PCI communication card based on the IP core has the disadvantages of low real-time perfor-mance,poor anti-interference and low universality in communication effect because the internal phase distortion problem in the transmission process is not considered.Therefore,a communication card based on FPGA is designed for the embedded communi-cation system.The overall architecture of the communication card is composed of the FPGA module,Ethernet 88E1111 PHY chip,MCP2515 CAN controller and so on.The FIR filter distributed algorithm is adopted to deal with the internal phase distor-tion problem during the signal transmission of the communication card.The NiosⅡintegrated development environment of the SoPC system is utilized to design the software of the communication card.The initialization program is designed to realize the control register configuration of the CycloneⅢ3C25F32 chip in the FPGA module.The communication program is designed to realize transmitting and receiving of data information in the communication card.The experimental results show that the designed communication card has the advantages of high real-time performance,good anti-interference and high universality in communi-cation effect,which can greatly improve the communication efficiency.

关 键 词：FPGA 嵌入式系统 通信卡 接口电路 控制寄存器 通信程序 

分 类 号：TN914-34[电子电信—通信与信息系统] TP274[电子电信—信息与通信工程]