基于FPGA的SSI通信模块设计  

Design of SSI Interface Module for Communication Based on FPGA

作　　者：李文涛[1] 李瑞刚 LI Wen-tao;LI Rui-gang(School of Information Engineering, Inner Mongolia University of Science and Technolog)

机构地区：[1]内蒙古科技大学信息工程学院

出　　处：《化工自动化及仪表》2018年第4期324-328,共5页Control and Instruments in Chemical Industry

摘　　要：为了实现SSI协议的从机与上位机的实时通信,设计基于FPGA工业数据采集用的SSI接口模块。利用LM2596稳压芯片及其外围电路设计电源,利用ADu M1201数字隔离芯片设计隔离电路,并通过MAX491实现差分信号转换;软件设计利用Verilog HDL硬件描述语言完成。该模块具有同步时钟发生器和独立供电电源,可独立工作,成本低且效率高。测试结果验证了方案的可行性和可靠性。Designing FPGA industrial, data collection-based SSI（ synchronous serial interface） module was im- plemented, including applying LM2596 voltage regulator and its peripheral circuit to the power supply design and employing ADuM1201 digital isolation chip to design isolation circuit and having MAX491 based to accom- plish differential signal conversion as well as making use of Verilog HDL （hardware description language） to design softwares. The module has synchronous clock generator and independent power supply and it can work alone along with low cost and high efficiency. Test results prove both feasibility and reliability of this scheme.

关 键 词：SSI通信模块 FPGA VERILOG HDL语言 

分 类 号：TH862.7[机械工程—仪器科学与技术]