ARINC429是目前最常用的航空数据总线，ARINC429通信模块是航空电子系统中重要的组成模块。为了构建航空电子测试系统，设计了基于PCI总线的ARINC429通讯模块。采用DSP+FPGA的硬件结构，利用DSP实现了通讯模块的PCI接口，并利用FPGA实现了ARINC429通信协议的编解码逻辑。测试表明，该通讯模块能实时可靠灵活地收发数据，解决了飞行器多路ARINC429数据总线之间的双向通信问题。%ARINC429 is the most commonly used data bus in aviation industry currently. ARINC429 communication mo-dule is an important component part in avionics electronic system. In order to build a testing system for avionics,an ARINC429 communication module based on PCI bus was designed. The DSP+FPGA hardware architecture is used. The DSP is used to achieve the PCI interface of communication module. The FPGA is used to implement the codec logic of ARINC429 communica-tion protocol. The testing results show that the communication module can reliably and flexibly transmit-receive data in real time. The module solved the problem of bidirectional communication among multiplexed ARINC429 data buses in aircrafts.
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