基于FPGA的ARINC429总线嵌入式接口板的设计与实现

Design and Implementation of ARINC429 Bus Interface Board Based on FPGA

摘要:

提出了在一块芯片内实现ARINC429总线协议,并将USB、PCI两种接口结合在一块接口板上的新构想;并根据板卡的功能和技术指标要求,设计了基于FPGA的ARINC429总线接口板;在硬件设计上采用模块化方法设计了系统的硬件电路,分析了各部分的功能,并对硬件接口进行了详细的设计;软件设计上从硬件和软件两方面论述了NIOS Ⅱ处理器的设计,从总体设计、发送通道、接收通道、接口逻辑等方面设计与实现了多通道总线协议IP核;最后对板卡的功能进行测试,结果表明设计的接口板能够达到ARINC429数据通信的要求,能够克服专用芯片中的数据格式固定,使用不够灵活方便等缺点。

Abstract:

This paper introduces a novel design of achieving ARINC429 Bus protocol in one chip and synthesizing USB PCI in one interface board. According to the performance and technical indexes of the platform, the ARINC429 bus interface board has been designed. In terms of hardware, the modularization was adopted to design the system circuit; the functions of each part of the system were analyzed; the hardware interface was designed in detail. In the software design, this paper gave out the conclusion of design and achievement of NIOS II processor in terms of both hardware and software; the design and achievement of multi-channel bus protocol IP kernel from the aspects of overall design, transmission channel, receiving channel and interface logic were also introduced. Finally,the test of interface function was done. The test results indicated the designed ARINC429 interface board can work properly. This interface board can avoid the fixed data format of specialized chip, and It is expedient and reliable. 