摘要
PI总线是为航空电子系统研制的一种专用总线,在实时和容错方面性能卓越,具有良好的应用前景,因此PI总线协议芯片的研制和验证工作具有重要意义。使用可编程逻辑器件实现PI总线协议具有灵活高效的特点,便于进行系统验证。简要介绍了PI总线,在此基础上提出了较为严密的系统验证方案,并给出了具体的验证示例,力求全面完整、重点突出。
This article discusses the PI Bus characteristics in brief, and validates basic functions of PI Bus Interface Unit Chips by communicating with parameter write message. Especially, this article validates some special functions of PI Bus. The result indicates that the PI bus Interface Unit Chips are according to industry standards. Parallel Interface Bus is dedicated used for avionics. It has excellent performance in Real - time and Fault - tolerant fileds. Because its application foreground is wide, development and verification of PI - Bus protocol processing chips are very important. Using programmable logic devices to realize the PIU is efficient and flexible for verification in application systems. The article introduces the PI -Bus briefly and brings forward the scheme to verify the PIU in the system. Some examples are given at the end.
出处
《航空计算技术》
2007年第2期88-90,102,共4页
Aeronautical Computing Technique
