基于ABTS协议的FC-AE-1553交换管理模块研究与实现

相对于传统1553总线,基于光纤的FC-AE-1553航电总线具有更大的的带宽、更灵活的拓扑和更高的系统可靠性,其核心为交换型的总线通信模式；在分析FC-AE-1553总线交换协议的基础上,提出一种基于ABTS的FC-AE-1553交换管理模块实现方案,对模块进行原理设计并详细分析了交换处理流程；基于FPGA硬件平台完成了交换管理模块的工程实现,搭建系统模拟NC和NT进行总线通信,验证了总线数据交换和ABTS差错处理功能,实现了FC-AE-1553总线数据的5Gbps传输；验证结果表明,模块支持各类复杂交换管理模式,有高的集成度和较强的通用性,IP软核能够方便地进行功能扩展和平台移植,具有良好的实用价值和应用前景。

Research and implementation of FC-AE-1553 bus exchange management module based on ABTS protocol

Compared with the traditional 1553 bus,the new fiber-based FC-AE-1553 avionics bus has a wider bandwidth,more flexible topology and higher system reliability,its core lies in the bus communication mode of exchange.Based on the analysis of FC-AE-1553 bus exchange protocol,an implementation scheme of FC-AE-1553 exchange management module based on Abort Sequence Protocol (ABTS) is presented,the fundamental of the module is designed and the exchange process is analyzed in detail.Then,implemented the module based on the FPGA hardware platform and builded the system that conducts communication between network controller (NC) and network terminal (NT),which verified the function of bus data exchange and ABTS protocol error handling,and realized the 5Gbps transmission of FC-AE-1553 bus data.Results show that the module supports various complex exchange management modes with high integration and versatility,the IP soft core can be easily extended and transplanted,and thus owns good practical value and application prospects.