As the wide application of ARINC429 bus on avionics equipments, slow communication speed of current boards becomes a serious problem. This paper introduced an ARINC429 communication board based on MCU control and CPLD I/O expansion. Hardware environment of this board consists of eight receive channels, four transmit channels, and both USB and RS485 interfaces. This board achieves compatibility between the plug-and-play, high-speed transmission of USB interfaces and the simplicity, universality of RS485 interfaces, making ARINC429 equipment testing faster and more convenient. This board has been used in a Hardware-in-loop testing system successfully.
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机译:随着ARINC429总线在航空电子设备上的广泛应用,当前板的缓慢通信速度变得严重。本文基于MCU控制和CPLD I / O扩展介绍了ARINC429通信板。该板的硬件环境由八个接收通道,四个传输通道和USB和RS485接口组成。该板在USB接口的即插即用,高速传输和RS485接口的简单性之间实现了兼容性,使ARINC429设备测试更快,更方便。该板已成功地用于硬件环路测试系统。
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