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根据ARINC429航空总线工业标准,按照ARINC429总线的电气特性要求,采用FPGA+DSP的架构实现多种ARINC429协议处理。FPGA结合外围芯片实现ARINC429总线底层数据收发功能,DSP实现ARINC429总线AIM、BOP3协议解析功能。该实现具有设计简单灵活,应用场景广,具备一定抗干扰能力等特点。该设计已应用于采用ARINC429总线的航空通信设备。
According to ARINC429 aviation bus industry standard, in accordance with the electrical characteristics of ARINC429 bus requirements, using FPGA + DSP architecture to achieve a variety of ARINC429 protocol processing. FPGA combined with peripheral chips ARINC429 bus to receive and transmit data at the bottom of the function, DSP ARINC429 bus AIM, BOP3 protocol parsing function. The realization of a simple and flexible design, wide application scenarios, with a certain anti-interference ability and so on. The design has been applied to the use of ARINC429 bus aviation communications equipment.