一种高速1553B总线控制器自动测试平台的开发

Development of automatic test platform of a high-speed 1553B bus controller

摘要:

高速1553B总线控制器自动测试系统的开发是基于通用测量仪器搭建的测试平台，应用高速1553B总线协议分析软件实现总线信号电气特性参数的自动测试和协议功能的检查。自动测试平台中数字存储示波器对总线信号进行采集、处理和测量，任意波形发生器模拟仿真高速1553B总线编码信号和总线错误注入信号，基于Matlab开发自动测试程序，完成对高速1553B总线协议的解码分析。使用国产4Mbps1553B总线控制器芯片对自动测试系统进行验证，对总线信号的幅值和畸变电压等参数进行测试，并对总线协议的正确性进行检查。验证结果表明，测试平台能够实现4M1553B总线控制器电气参数和协议正确性的可靠测试。该测试系统开发难度低，可以满足高速1553B总线控制器在设计和调试阶段的自动测试需求。

Abstract:

Development of automatic test system for high-speed 1553B bus controller is based on the universal measuring instrument to build the test platform .The application of high-speed 1553B bus protocol analysis software realizes the electrical characteristic parameter test and protocol function check for the bus signal. The digital storage oscilloscope acquires, stores and measures the bus signal, the arbitrary waveform generator simulations high-speed 1553B bus coded signal and the bus error injection signal. The automatic test procedures based on Matlab complete the High-speed 1553B bus protocol decoding analysis. Domestic chips 4Mbps1553B bus controller is used to verify the test system, the amplitude and distortion voltage residual voltage of the bus signal are tested, and the correctness of the bus protocol is checked.The verification results show that test platform can realize the reliable test of electrical characteristic parameter and protocol correctness. The test system has the characteristics of low development difficulty, can meet automatic of testing requirements of high-speed 1553B bus controller in the design and debugging stage.