针对C919飞机航电AFDX总线测试需求,设计了基于FPGA的数据采集设备,实现了AFDX航电总线的100%原始数据转发、实时解析功能。主要阐述了AFDX总线采集需要实现的功能和采集方案,详细介绍了AFDX数据采集设备的软硬件设计,分别进行了仿真测试和航电实验室测试,经验证AFDX采集模块对机载AFDX总线无干扰,整个实验测试结果正确,AFDX采集设备工作稳定、可靠,可以满足AFDX总线数据的测试需求。 According to the demand of C919 avionics AFDX bus test, an FPGA-based data acquisition device is designed to realize 100% original data forwarding and real-time analysis of AFDX avionics bus. Mainly described the AFDX bus acquisition need to achieve the functions and acquisition programs, a detailed description of the AFDX data acquisition equipment hardware and software design, respectively, the simulation test and avionics laboratory tests, verified AFDX acquisition module on the airborne AFDX bus without interference , The entire experimental test results are correct, AFDX acquisition equipment is stable and reliable, to meet the AFDX bus data testing needs.