Implementation And Testing Of The ARINC615Data Loading And Unloading Protocol Logic

This paper mainly studies the ARINC615data loading and unloadingprotocol(hereinafter referred to as the ARINC615protocol) which is defined byAeronautical Radio Inc, and gives the implementation of the ARINC615protocol basedon specific hardware environment. In addition, this paper preliminarily tests theARINC615protocol.The ARINC615protocol is a data loading and unloading protocol based onARINC429bus. Two ends of the connection for data transmission of the ARINC429bus are called data loader (hereinafter referred to as the loading end) and data loadeder(also referred to as the target machine, hereinafter referred to as loaded end)respectively. In a avionic network which regards AFDX(Avionics Full Duplex SwitchedEthernet) network as its core, the loading end is generally an end system equipmentbased on AFDX communication and the loaded end generally end system equipmentbased on ARINC429.This paper has finished following work. Firstly, it describes the practical operatinghardware environment which the ARINC615protocol is based on. Then it alsodescribes the actual protocol stack structure and introduces related definitions of theARINC615protocol. Secondly, it describes finite state machine model and theimplementation of the ARINC615protocol logic based on the model. Then it describesthe principles and implementation of protocol adaptation layer which is used forshielding the differences among all the link layer protocols. Because of the occasion thatthe loaded end may run in the hardware which has no file system, this paper describes amethod of the simulation of the file system in memory, that is principles andimplementation of the Virtual File System(VFS). Finally, it introduces the preliminarytesting process of the ARINC615protocol.