基于DSP与FPGA多路ARINC429数据通信系统设计

Multi-channel ARINC429 Data Communication System Based on DSP and FPGA

在介绍ARINC429总线基础上,提出基于DSP,FPGA与2片ARINC429协议芯片并行工作的ARINC429数据通信系统设计方法。该系统主要由DSP控制模块,ARINC429数据收发模块和FPGA逻辑控制模块组成。ARINC429数据收发模块采用ARINC429专用协议芯片DEI1016,完成ARINC429总线数据格式转换和协议处理。FPGA通过逻辑控制,控制DEI1016工作状态。TMS320F28335型DSP通过FPGA对2片DEI1016进行时序控制,完成DSP与2片DEI1016的通信。实验结果验证了所提方法的正确性。

On the basis of introducing ARINC429 bus, the designing scheme of the parallel working ARINC429 com- munication system is given,which is based on the DSP,FPGA and 2 ARINC429 chips.The system mainly consisted of DSP control model, ARINC429 data transceiver module and the FPGA logic control module.The ARINC429 special protocol transceiver chip DEI1016 is used in ARINC429 data transceiver module to implement ARINC429 bus data format conversion and protocol processing.The FPGA controls the working status of the DEI1016 through the logical control.The DSP TMS320F28335 controls the 2 DEI1016 chips through the FPGA,and accomplishes the communica- tion between the DSP and the 2 DEI1016 chips.The experimental results verify the correctness of the proposed method.