Design And Implementation Of FC-AE-1553 Node Card Software

Modern aerospace electronic systems for bus network speed and bandwidth have become increasingly demanding. In the 1970 s, the United States raised the military standard MIL-STD-1553 B bus transmission rate in the number of terminals and support have bottlenecks. Meanwhile, FC(Fiber Channel, FC) technology has been rapid development, its high transfer rate, high bandwidth and high reliability, etc. to meet the high performance requirements of aerospace electronic systems for data bus. FC-AE-1553 protocol is in this context organized by the Fibre Channel standard avionics sub-committee proposed, which uses fiber channel as the underlying transport network, the upper mapping MIL-STD-1553 B bus protocol. FC-AE-1553 not only inherits the traditional strengths of MIL-STD-1553 B bus, but also to achieve a fiber channel low latency, high bandwidth and high reliability characteristics. In addition, FC-AE-1553 also has support for multiple transmission rates and support for large data transfers and so on.Firstly, the technical background and academic value and significance of the FC-AE-1553 were introduced the system. Then a brief introduction and FC-AE-1553 related to the agreement, including protocol stack and frame structure Fibre Channel network structure and word structure MIL-STD-1553 B bus. Then a detailed analysis of the important content FC-AE-1553 agreement, including the frame structure FC-AE-1553, the data transfer mode. This paper focuses on the following apply to aerospace environment improved and simplified scheme FC-AE-1553 was studied and analyzed the particularity of aerospace environment, for FC-AE-1553 in terms of its architecture and the two made a corresponding agreement simplification and improvement, and the underlying error retransmission improvement program made OPNET simulations to verify its advantages. On the basis of the agreement on the study, presented the overall architecture of FC-AE-1553 node cards include hardware layer, a driver layer and the upper application layer. This paper briefly describes the FC-AE-1553 node card’s hardware environment, several important module FC-AE-1553 node card driver for the corresponding research and design. It focuses on the FC-AE-1553 node card design and realization of the upper application, including data generation, NC processing module, design and implementation of NT processing modules and interactive parsing module. Finally, set up a good test environment, according to the development of test programs on the FC-AE-1553 node card performance test in terms of transmission rate and transmission delay, verify its high transmission rate and low latency. In the functional test environment, the various transmission modes for functional testing, validation FC-AE-1553 node card software can exchange data transmission mode in accordance with the agreement.