摘要
航空全双工交换式以太网(AFDX)具有高速、确定性和双余度等特点,已经作为新一代航空电子系统的数据传输网络。分析了AFDX网络确定性的基本原理,根据网络带宽分配、网络延迟和发送抖动对终端系统施加的要求,提出在终端系统内部应实现的相关逻辑功能和实现方法。结合AFDX网络终端系统的SoC芯片设计,采用Verilog语言实现了数据流量规整、发送调度和其他相关逻辑功能,以确保芯片的最终实现满足确定性要求。通过仿真和FPGA原型验证,证明了确定性设计实现的正确性。
As a new generation aircraft data network,AFDX is high-speed,real-time and redundant.Analyze the determinism of AFDX network,and bring forward logical functions and implementation methods in end system based on requirements imposed by allotted bandwidth and network delay.Implement the design of regulating,scheduling and other relevant functions in AFDX-ES SoC by Verilog language to make sure that the chip finally satisfies requirements of determinism.The design is verified by simulation and FPGA verification.
出处
《计算机技术与发展》
2010年第8期56-58,62,共4页
Computer Technology and Development
基金
"十一五"总装微电子预研项目(51308010511)
总装预研重点基金项目(9140A160107HK61)
