一种IEEE1394总线监控卡的设计与实现

摘要

With the characteristics of high bandwidth,low latency and strong real-time performance,IEEE1394 is widely used in aviation and aerospace fields. As the implication of difference bus data transmission,and complex protocol makes design difficult. Aiming at the principle and characteristics of 1394 bus,analyze the 1394 bus monitor requirement,and put forward a kind of software and hardware co-operation scheme for 1394b bus monitoring. It provides the regarding software and hardware design,implement the real-time network mo-nitoring and controlling. Additionally,it adopts software to record,restore,analyze and display the data,this is very expedient for observa-tion and result analyzing. The application of this device will give great support for 1394 bus devices development and test.%IEEE1394总线具有带宽高、延迟低、实时性强等特点，广泛应用于航空、航天领域。由于其差分总线上传输数据不透明，且协议复杂给设计开发带来极大困难。文中针对1394总线的原理和特点，分析了1394总线的监控需求，提出一种软硬协同实现的1394b总线监控方案。给出了相关的软件和硬件设计，实现网络中实时传输数据的监视和控制，采用软件对数据进行记录、存储、分析以及图形化显示，方便了数据的观测和结果分析。该设备的应用可为1394总线设备的开发与测试提供有效支持。