ARINC429是定义航空电子设备和系统彼此之间相互通信的一种规范,本文介绍了基于FPGA的429总线编码发送电路,该电路利用XILINX公司的SpartanⅡ系列大规模现场可编程阵列芯片(FPGA) XC2S100实现与429计算机的通信,采用特殊电路完成符合429编码格式转换后发送,文章说明了电路各部分的设计和工作原理。 ARINC429 is to define the avionics and systems to communicate with each other a specification, this article describes the FPGA-based 429 bus code sending circuit, the circuit using XILINX’s Spartan Ⅱ series of large-scale field programmable array chip (FPGA) XC2S100 Communication with the 429 computer, using a special circuit to complete the 429 encoding format conversion to send the article describes the design and working principle of the various parts of the circuit.