基于FPGA的ARINC429接口设计

Design of ARINC429 Interface Based on FPGA

针对微控制器与航空总线ARINC429的多通道接口问题,设计了4发4收的ARINC429总线接口。采用由顶向下的设计方法,通过功能模块的合理划分,实现了多通道的灵活扩展和微控制器的灵活接口。简述了ARINC429总线协议,详述了总体设计方案及模块的功能划分,分析了总线接口模块、发送模块和接收模块的信号设计,并设计了发送状态机。最后通过FPGA对方案进行门级仿真验证,结果证明了此设计方案的可行性。

In view of the problem of interfacing between microcontroller and ARINC429,an interface with four transmitters and four receivers is designed.And,the protocol of ARINC429 is described,the architecture of interface and the design of every module are analyzed.Meanwhile,the simulation and verification are also given based on FPGA.The simulating results prove the feasibility of the design.