基于DSP和CPLD的1553B总线通信装置的研制

发布时间：2018-04-26 14:27

本文选题：1553B总线 + DSP　；参考：《哈尔滨工业大学》2016年硕士论文

【摘要】：在国内国防现代化建设改革的浪潮中,现代航空电子综合系统对通信总线的要求不断提高,而1553B总线的高可靠性和简单易用的特点很好的适应了这一要求。本课题对1553B总线展开了研究,并基于DSP和CPLD研制了1553B总线通信装置。首先,对1553B总线通信装置进行了功能需求分析,确定了其主要功能,提出了基于DSP和CPLD的设计方案。在对1553B总线和Modbus通信协议进行分析的基础上,考虑到国防要求,1553B总线协议芯片选用了国内772研究所自主研发的协议芯片(B61580S3),该芯片能够兼容美国DDC公司生产的BU-61580芯片,实现了国产化替代;分析了三路交流电压采集、温度采集、湿度采集和十四路开关控制等1553B总线通信装置主要组成部分的功能需求,提出了基于DSP和CPLD的设计方案。其次,对通信装置进行了硬件和软件设计。该通信装置的硬件部分主要由DSP(TMS320F2812)及其外围电路、CPLD时序逻辑控电路和1553B协议芯片及其外围电路组成。DSP作为主控处理器,CPLD则提供合理的时序逻辑并辅助主控制器访问1553B协议芯片,而1553B协议芯片电路完成总线通信功能。软件设计主要包括DSP软件和CPLD时序逻辑设计。软件的重点和难点是DSP、CPLD和1553B协议芯片三者之间的协调匹配。最后,搭建了系统测试平台,选用成都恩菲特科技有限公司的EP-H1273多功能通信模块和所设计的1553B总线通信装置进行了通信测试。在此测试平台下,完成了数据收发测试、开关控制测试和通信性能测试等,同时对测试过程中出现的工程问题进行分析;并建立了通信装置的可靠性模型,对通信装置进行了可靠性分析。
[Abstract]:In the tide of the national defense modernization construction reform, the modern avionics integrated system demands the communication bus continuously, but the 1553B bus has the high reliability and the simple and easy to use characteristic to adapt to this request very well. In this paper, the 1553B bus is studied, and the 1553B bus communication device based on DSP and CPLD is developed. Firstly, the function requirement of 1553B bus communication device is analyzed, its main function is determined, and the design scheme based on DSP and CPLD is put forward. On the basis of the analysis of 1553B bus and Modbus communication protocol, considering the national defense requirement, the protocol chip of 1553B bus is selected, which is developed independently by domestic 772 research institute. The chip can be compatible with the BU-61580 chip produced by DDC Company of the United States. The function requirements of the main components of the 1553B bus communication device, such as three-channel AC voltage acquisition, temperature acquisition, humidity acquisition and 14-way switch control, are analyzed, and the design scheme based on DSP and CPLD is proposed. Secondly, the hardware and software of the communication device are designed. The hardware part of the communication device is mainly composed of DSP TMS320F2812) and its peripheral circuit, CPLD sequential logic control circuit and 1553B protocol chip and its peripheral circuit. DSP is used as the main control processor to provide reasonable timing logic and assist the main controller to access the 1553B protocol chip. And 1553B protocol chip circuit completes the bus communication function. Software design mainly includes DSP software and CPLD sequential logic design. The key and difficulty of the software is the coordination and matching between DSP CPLD and 1553B protocol chip. Finally, the system testing platform is built. The EP-H1273 multifunctional communication module and the 1553B bus communication device designed by Chengdu Enfit Technology Co., Ltd. are selected for communication test. In this test platform, the data transceiver test, switch control test and communication performance test are completed, and the engineering problems in the testing process are analyzed, and the reliability model of communication device is established. The reliability of communication device is analyzed.
【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：V243

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