基于FPGA的多通道ARINC429总线测试系统

Multichannel ARINC429 bus test system based on FPGA

ARINC429是一种可靠性高、抗干扰能力强的航空通信总线,在航空工业领域得到了非常广泛的应用。提出了一种基于FPGA以及总线接口芯片的系统应用方案,设计了一款多通道、用于ARINC429总线接口的测试系统,意在实现具备ARINC429总线设备的自动化测试并提高测试效率。着重阐述了系统的架构设计、FPGA的逻辑设计、总线接口芯片的硬件设计以及时序的分析与设计,最后对接口芯片的时序、ARINC429总线的信号质量、系统功能进行了验证与测试。经测试,系统进行多通道收发时数据可靠,在不同速率下通信稳定。

ARINC429 bus is one of the aviation communication buses.It has the characteristics of high reliability and strong antiinterference ability,and is widely used in the aviation industry.This paper designs a multi-channel ARINC429 bus board with FPGA as the main control chip and bus interface chip.The purpose is to achieve automated testing and provide testing efficiency.This paper focuses on the design of FPGA,the application of interface chip and architecture design.Finally,the timing of the selected interface chip,the actual signal quality of ARINC429 bus and the overall function of the system are tested.The actual test shows that the board can communicate reliably at different rates and the data is stable.