Design Of 1553B Remote Terminal Device Based On FPGA

MIL-STD-1553B(Digital Time Division Command/Response Multiplex Data Bus)is a link between integrated avionics equipment used for data exchange,and is an information transmission equipment bus developed for aircraft.After continuous improvement and development,the 1553B bus has been widely used in military and civilian fields.Usually the 1553B remote terminal relies on imported special protocol chips,and the key technology is constrained by others.To this end,this paper uses software simulation and experimental methods to carry out research on FPGA 1553B bus remote terminal,in order to achieve the purpose of replacing imported protocol chips.The following main results were obtained:1.Designed the remote terminal of 1553B bus based on FPGA,and completed the software simulation verification.Using the top-down method,the division of logic modules,the design of algorithms,and the simulation and synthesis of timing were performed to verify the feasibility of the scheme.The simulation shows that the maximum frequency can reach 112.874Mhz,and the code coverage is 86.2%,which meets the 1553B bus function requirements.2.Designed and built a board-level hardware platform and completed the verification of the FPGA 1553B remote terminal solution.A domestic SMQV600CQ240 FPGA chip is used as the processor,a board-level hardware platform is established,and a simulation test card is used to verify the communication experiments with remote terminals.The results show that the transmission rate is 1Mb/s,and the state response time is 8?s,which meets the functions of the protocol.