基于1394总线异步流包的两级过滤

Two-stage Filtering Based on 1394 Bus Asynchronous Stream Packets

IEEE 1394总线具有高可靠性、低延迟、带宽高、实时性强等特点,广泛应用于工业领域和航空航天领域。对1394异步流消息包的特征进行了分析,提出了一种基于5643协议的1394异步流消息包的过滤方式,采用FPGA实现1394异步流消息的两级过滤。通过不同的场景进行验证与测试,该方法满足1394总线的过滤要求。

IEEE 1394 bus has the characteristics of high reliability,low latency,high bandwidth and strong real-time performance,and is widely used in industrial and aerospace fields.In this paper,the characteristics of 1394 asynchronous stream message packets are analyzed,and a filtering method of 1394 asynchronous flow message packets based on 5643 protocol is proposed,and FPGA is used to realize two-level filtering of 1394 asynchronous stream messages.Through verification and testing in different scenarios,this method meets the filtering requirements of the 1394 bus.