基于PCI总线的ARINC429通讯模块研制

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。

Development of ARINC429 communication module based on PCI bus

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.