基于FPGA的串行总线解码与触发技术的研究与实现

发布时间：2018-02-02 00:19

本文关键词： 触发与解码技术串行总线 FPGA　出处：《东南大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着现代通信技术的快速发展,串行总线由于成本低廉、抗干扰能力强、传输距离较远,得到越来越广泛的应用。在实际调试过程中,串行总线测量在触发方式、总线类型、通用性和协议解码分析的正确性方面都对测试仪器提出新的要求。数字荧光示波器(DPO, Digital Phosphor Oscilloscope)是现代测试系统中不可或缺的综合性测量仪器。串行总线解码与触发技术已经成为数字荧光示波器准确捕获串行总线信号和稳定触发显示波形数据的关键技术。本课题属于数字荧光示波器高级触发与协议分析模块的一部分,主要对数字荧光示波器中的串行总线解码与触发技术进行了研究与实现。本文在深入研究数字荧光示波器触发技术基本原理和串行总线协议标准的基础上,结合自顶向下的设计思想,基于Xilinx公司Kintex-7系列FPGA芯片实现了CAN和LIN两种串行总线解码与触发功能的模块化设计。论文首先介绍了项目开发所基于的数字荧光示波器平台和FPGA芯片,然后阐述了串行总线解码与触发模块的总体设计方案与框图,接着详细介绍了解码参数寄存模块、串行总线解码模块、触发判别比较模块、解码标签生成模块以及解码数据存储与传输模块具体设计与实现,最后在自主设计的数字荧光示波器硬件平台上对论文所做的设计进行了详细地测试与验证。本文研究成果已成功应用于数字荧光示波器样机中,达到了系统各项预期的功能和指标。
[Abstract]:With the rapid development of modern communication technology, serial bus has been used more and more widely because of its low cost, strong anti-interference ability and long transmission distance. In the aspects of trigger mode, bus type, generality and the correctness of protocol decoding analysis, serial bus measurement has put forward new requirements for the test instrument.Digital fluorescence oscilloscope (DPO). Digital Phosphor Oscilloscope). The serial bus decoding and triggering technology has become the key technology for the digital fluorescence oscilloscope to accurately capture the serial bus signal and to stabilize the trigger display waveform data. This subject belongs to the advanced trigger and protocol analysis module of digital fluorescence oscilloscope. The serial bus decoding and triggering technology in digital fluorescence oscilloscope is studied and realized. In this paper, the basic principle of digital fluorescence oscilloscope trigger technology and the serial bus protocol standard are studied in depth. Combined with top-down design ideas. The modularization design of decoding and triggering function of CAN and LIN serial bus is realized based on Kintex-7 series FPGA chip of Xilinx. Digital fluorescence oscilloscope platform and FPGA chip. Then the overall design scheme and block diagram of the serial bus decoding and triggering module are described. Then the decoding parameter register module, the serial bus decoding module and the trigger discrimination comparison module are introduced in detail. The decoding tag generation module and the decoding data storage and transmission module are designed and implemented. Finally, the design of the digital fluorescence oscilloscope is tested and verified in detail on the hardware platform of the digital fluorescence oscilloscope. The research results in this paper have been successfully applied in the prototype of the digital fluorescence oscilloscope. The expected functions and targets of the system are achieved.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM935.37;TN791

【相似文献】