Variable-rate 1553B protocol processor circuit and method

Abstract

The invention relates to a variable-rate 1553B protocol processor circuit and a method. the circuit comprises a clock frequency multiplication circuit, a 1553B protocol processing circuit and a configuration module, wherein the configuration module configures and outputs a clock frequency amplification factor N to the clock frequency multiplication circuit; the clock frequency multiplication circuit receives a clock signal CLK_IN with a fixed frequency, a multiplication clock signal with a frequency of N*CLK is generated, and the signal is sent to the 1553B protocol processing circuit; and the CLK is an input clock needed by the 1553B protocol processing circuit at a 1MHz bus baud rate. Through configuring a clock input mode for the 1553B protocol processor, a 1553 bus communication rate at a different rate is realized, and the purposes of enhancing the communication efficiency and reducing the average communication delay can be achieved.

Description

technical field [0001] The invention belongs to the technical field of computer communication, and relates to a variable rate 1553B protocol processor circuit and method. Background technique [0002] MIL-STD-1553, abbreviated as "Aircraft Internal Time Division Command / Response Multiplexed Data Bus", is a standard bus for networking electronic systems of the US Air Force. It is proposed to meet the needs of industry and military, and has high reliability and flexibility. The MIL-STD-1553 protocol was jointly launched by the U.S. military and the government in 1973. It formed the initial version A in 1975 and began to be applied to the U.S. military's F-16 fighter jet and the new attack helicopter AH-64A. In 1978, the agreement was developed to version B, and at the same time, the US government fixed the agreement at version B, that is, MIL-STD-1553B, which has been used to this day. my country issued the national military standard GJB289A-97 (digital time-division command...

AI Technical Summary

Problems solved by technology

With the development of technology, the function of the avionics system is becoming more and more complex, and the performance is becoming more and more powerful. The 1Mbps baud rate of the 1553B bus can no longer meet the system's requirements for the communication bandwidth of the bus.

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