基于FPGA的可重構(gòu)多總線通信單元設(shè)計(jì)
[Abstract]:With the development of science and technology, modern test system is developing towards the integration of hardware and software of "one machine, one machine". Therefore, the design of test and test integration platform is required to be standardized and universal. Extensible and other characteristics. The external bus is one of the most important parts in the integrated test and test platform. In this paper, the design of multi-bus communication unit based on FPGA is carried out under the background of the bus technology requirement of the test and test integration platform, the reconfigurable technology based on FPGA and the application condition of multiple serial buses. In this paper, the field editable logic gate array (FPGA) chip is used as the main control chip, and the advantages of "hardware design software" are used to meet the requirements of the system design in the most programmable form. On the basis of analyzing the current research situation of related technologies at home and abroad and according to their main functions, this paper puts forward the overall design scheme of the system from the point of view of the research background. According to the design scheme, the system hardware is designed firstly, including clock circuit, power circuit, configuration circuit, reset circuit and external memory circuit in FPGA hardware unit, and CAN bus RS-422 circuit in bus unit, etc. By analyzing various protocol specifications of serial bus, using hardware description language and combining with SJA1000 CY7C68013AHMAX3160 protocol chip, the FPGA design of the bus is completed, and the system can be configured repeatedly according to the characteristics of FPGA. The internal logic function of FPGA chip is changed dynamically by using reconfigurable technology, and the configuration file is selected by LabView multi-bus communication unit of host computer, which dynamically changes the whole function of the system, and the timing simulation of reconfigurable configuration is carried out. Finally, the whole system is verified by experiment, and its function reaches the expected goal. Using FPGA reconfigurable technology to dynamically configure all kinds of buses is the practical application of reconfigurable technology in solving the technical problems of generalization integration miniaturization and so on. The design achieves the goal of information sharing with all kinds of universal, special test and test equipment, and improves the efficiency, rapidity and reliability of information transmission.
【學(xué)位授予單位】:中北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:TP336;TN791
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