AFDX交换机链路调度模块的设计与验证  

Design and Verification for Link Scheduling Module of AFDX Switch

作　　者：孟凡鹏[1] 王科 梁鹏程[1] 

机构地区：[1]西北工业大学,西安710129 [2]中航工业无线电电子研究所,上海200030

出　　处：《遥测遥控》2013年第6期59-63,共5页Journal of Telemetry,Tracking and Command

摘　　要：设计一种确保AFDX交换机数据帧发送和接收顺序保持一致的虚拟链路调度模块,实现对各端口虚拟链路校验请求的有序处理。通过HDL描述,设计完整的硬件电路,并利用FPGA加以实现。对设计进行仿真,并加入断言检测。结果表明,此设计符合AFDX交换机端口对数据帧请求处理的要求,有效地保证了AFDX交换机各端口公平调度,满足航空电子数据确定性的要求。In this paper,a virtual link scheduling module is designed to ensure AFDX switch data frame sending order and receiving order maintained consistently and realize the orderly handle of each virtual link request. Through description of HDL,a complete hardware circuit is designed,and it is realized by FPGA. Moreover,the design is simulated,and the assertion checking is also added. The result shows that the design conforms to the AFDX switch port for the requirement of data frame handle,meanwhile it effectively ensures the AFDX switch ports' fair scheduling. The design can meet the avionics data determinacy requirement successfully.

关 键 词：AFDX 虚拟链路 调度 断言 

分 类 号：TN919[电子电信—通信与信息系统]