一种基于FPGA的多功能ARINC429总线接口

A Multifunctional ARINC429 Bus Interface Based on FPGA

针对航电设备间数据传输高可靠性的需求,提出了一种适用于机载平台的ARINC429总线接口,它利用大规模可编程阵列高速率、大吞吐量、并行处理等特点,对ARINC429总线接口进行IP化、通用化、模块化设计,使其具有通道参数、路由、通信速率、缓存深度、中断模式可灵活配置等功能,增强了总线的移植性和通用性。在电平采样中引入滑动窗口投票判决机制,有效降低了通信误码率,提高了数据传输的可靠性和鲁棒性。经实践验证该接口具有可靠性高、抗干扰性强、稳定性好、总线参数可灵活配置等优点,能够满足飞机在不同飞行阶段高可靠性通信的需求。

For the requirements of high reliability data transmission between avionics,ARINC429Bus Interface was proposed,which issuitable in airborne platforms,it uses the characteristics of large-scale programmable array’s high-speed,larger-throughput and parallelprocessing,designing ARINC429Bus Interface through those method by IP-Core,universal,modular,it has been feature of Channel parameters,routing,communication speed,cache depth,interrupt mode can flexibly configured.these features enhance its portability and versatility.Meanwhile,voting-decision mechanism was introduced in level sampling,effectively reduced communication error rate,improved thereliability and robustness of data transmission,reduce the size and weight of the module.the result of experimental show that BUS-Interface hasadvantage of high-reliability,strong anti-interference,good stability,flexibly configured,can meet aircraft’s requirement of BUS transceiver datain different flight phase.