基于SOPC的可重构通信测试系统设计

发布时间：2018-02-27 23:19

  本文关键词： DSP FPGA SOPC 串行通信 Avalon外设 在线编程　出处：《南京理工大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着通信技术和嵌入式系统的发展,嵌入式通信系统广泛应用于工业、国防、航空航天等领域。因此,嵌入式通信系统的数据通信是否可靠,对整个系统的性能显得至关重要。基于此目的,本文基于实际应用背景并结合当前SOPC (System On a Programmable Chip,片上可编程系统)技术,研究了一种基于SOPC的可重构通信测试系统。 本文设计实现了基于SOPC的可重构通信测试系统,该系统对RS-485、CAN通信错误、设备通信线路故障提供解决方案。本文以测试系统的实现为主线展开论述,首先从总体上对系统的性能指标、功能等方面进行了介绍,然后着重对系统各个部分的功能实现进行了分析及论述。设计工作大致可分为下位机设计和上层监控系统设计。 下位机以DSP+FPGA双处理器的体系结构搭建硬件平台。其中DSP TMS320F2812主要负责对四路模拟电压信号的采集、EPCS4在线编程及与上位机进行RS-232串口通信；FPGA采用Altera公司的CycloneⅡEP2C8Q208I8N,将UART、CAN控制器等以Avalon外设的形式集成到自定义的NiosⅡ处理器中,以一种全新、灵活的方式,与通信设备进行RS-485、CAN串行通信。为了能够保障通信的可靠性及连续性,在软硬件设计中,都采用冗余设计思想。 上层监控系统利用VC++编程语言设计完成,主要实现与单板系统的通信、对通信测试结果的分析和显示功能。 最后,在上层监控系统与单板系统之间开展了联调测试工作。测试结果表明本系统性能达到了设定的指标要求。
[Abstract]:With the development of communication technology and embedded system, embedded communication system is widely used in industry, national defense, aerospace and other fields. It is very important to the performance of the whole system. For this purpose, a reconfigurable communication testing system based on SOPC is studied in this paper, based on the practical application background and the current SOPC system on a Programmable Chip (Programmable system on Chip) technology. A reconfigurable communication test system based on SOPC is designed and implemented in this paper. The system provides a solution for RS-485 can communication error and equipment communication line fault. Firstly, the performance index and function of the system are introduced in general, and then the function realization of each part of the system is analyzed and discussed. The design work can be divided into lower computer design and upper monitor system design. The hardware platform is built by DSP FPGA dual-processor architecture, in which DSP TMS320F2812 is mainly responsible for on-line programming of four analog voltage signals and RS-232 serial port communication with host computer. Cyclone 鈪，

本文编号：1544752