1553B and serial port communication module based on FPGA

Abstract

The invention discloses a 1553B and serial port communication module based on an FPGA. The 1553B and serial port communication module comprises an FPGA unit, a 1553B bus transceiver, a 1553B bus isolation transformer, an optocoupler isolation circuit, a multi-protocol serial port transceiver, a FLASH circuit, an SDRAM circuit and a power conversion circuit. Through the design of the FPGA, the conversion from the FC-AE-1553B bus to the MIL _ STD _ 1553B bus and the serial port bus can be realized; the 1553B bus transceiver is used for converting the Manchester II double-phase data into a 1553Bdifferential signal; the 1553B bus isolation transformer is used for realizing isolation of a 1553B signal; wherein the optocoupler isolation circuit is used for realizing input and output isolation of serial port signals, the multi-protocol serial port transceiver is used for realizing conversion from serial port TTL signals to RS422 / RS485 / RS232 signals, the FLASH circuit is used for configuringan FPGA chip, and the SDRAM is used for providing a storage function for FPGA design. And the power conversion circuit converts the working voltage required by the module. The 1553B and serial port bus communication module based on the KINTEX series FPGA has the advantages of being flexible in design, low in power consumption, high in real-time performance, high in reliability and the like.

Description

technical field [0001] The invention belongs to the field of anti-harsh environment computer technology, in particular to the field of MIL-STD-1553B and serial port communication. Background technique [0002] 1553B (MIL-STD-1553 for short) is the first military data bus standard formulated by the United States in the 1980s. It is a serial data bus. The data bus has bidirectional output characteristics, real-time performance and high reliability, and is widely used in military aircraft, vehicles and ships. In the MIL-STD-1553 bus communication system, the bus interface board is a key part of the system. Today, when the 1553B bus is widely used, the 1553B bus communication modules used in China mostly use 1553B protocol chips to carry out related designs, such as the US DDC company’s 1553B protocol chip BU-61580, although these chips can complete the protocol functions, they are expensive and have poor flexibility. These weaknesses limit the design ability to a certain exten...

AI Technical Summary

Problems solved by technology

In the MIL-STD-1553 bus communication system, the bus interface board is a key part of the system. Today, when the 1553B bus is widely used, the 1553B bus communication modules used in China mostly use 1553B protocol chips to carry out related designs, such as the American DDC company’s 1553B protocol chip BU-61580, although these chips can complete the protocol functions, they are expensive and have poor flexibility. These weaknesses limit the design ability to a certain extent. Therefore, a new FPGA-based data bus interface design scheme is proposed. Through the design FPGA implements MIL-STD-1553 communication function

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