摘要
航空总线通讯设备的检测是航空电子系统测试和维护的重要组成部分。现有的AR INC429总线通讯设备通道数较少,无法满足现实使用中多设备多通道同时检测的需求。为有效解决这一问题,通过对AR INC429数据总线及相关型号芯片进行充分分析,提出了一种基于自主设计的多通道总线协议IP核的多通道AR INC429总线接口卡的硬件组成原理及实现方法。接口卡采用PLX公司的专用接口控制芯片PCI9054实现PCI接口,使用双端口RAM解决多通道同时工作时数据读写的实时性、可靠性问题。系统仿真分析和实装试验的结果表明,该总线接口卡能够很好地满足快速数据处理和稳定高效的数据传输的要求。在实际使用中,实现了16收16发的功能,具有很高的实际应用价值。
The detection of avionic bus communication devices is an important part of the detection and maintenance of avionic system. The existed ARINC429 bus communication devices have only a few channels, which is difficult to implement simultaneous testing of multi-device/multi-channel in practical applications. To solve this problem, a new hardware structure of ARINC429 bus interface is proposed. The interface board is based upon multi-channel bus protocol IP kernel, which is an independent innovation. The special interface control chip of PCI9054 from PLX Company is adopted to achieve the PCI interface. Double-port RAM supplies real-time performance and reliability of data access for multi-channel operation. The result of simulation and practical test indicated that the present board can satisfy the requirement of fast, efficient and stable data transmission. The function of 16 Rx and 16 Tx is implemented on one interface board.
出处
《电光与控制》
北大核心
2009年第2期72-75,83,共5页
Electronics Optics & Control
