A Design of Communication Interface of ADS-B for UAV

Through analyzing the small UAV (Unmanned Aerial Vehicle) flight control system based on CAN (Controller Area Network) bus, the paper focuses on the study of flight control system bus architecture, and puts up an ADS-B (Automatic Dependent Surveillance-Broadcast) architecture design which is suitable for this type of UAV. Transplants the mature ADS-B system with a focus on the design of CAN bus interface, and details the initialization of the CAN bus controller SJA1000 module and read-write module processing flow, designs and verifies the correctness of register read-write module on FPGA development platform according to the register read-write timing of CAN bus controller. Solved the key technologies of ADS-B system transplantation and verifies its correctness.