A New Configuration Method of GJB289A Bus

Abstract

The invention provides a configuration method for a novel GJB289A bus. Through a mapping relation of a configuration table, an application message is no longer deeply coupled with bottom layer hardware; through employing a uniform normative configuration constraint for each bus interface module of the GJB289A bus, the each bus interface module mounted on the bus is constrained by the configuration table, and sends a message and responds to the message in a specified time. Therefore, according to the configuration method provided by the invention, the problem that a message interval time and a status word response time of the previous GJB289A bus cannot be uniformly controlled is solved to a great extent; and meanwhile, the bus load and the bus efficiency are improved.

Description

technical field [0001] The invention relates to the bus technology, in particular to the bus technology in the field of avionics. Background technique [0002] The bus in the field of avionics, the GJB289A (ie MIL-STD-1553B) bus has been widely used in the field of avionics for many years, but in the airborne avionics network and avionics comprehensive laboratory, the existing GJB289A bus design and There are many problems in system configuration, such as: [0003] 1. Data sending and receiving are directly defined to the command word of the message, which makes the message transmission not flexible and transparent enough. [0004] 2. The message interval and message response time cannot be uniformly controlled, which affects the bus load and bus efficiency. [0005] 3. Since the vector word has only 16 bits, each terminal of the existing GJB289A only has 16 sub-addresses to trigger event messages, which makes the number of event transmission messages under each terminal i...

AI Technical Summary

Problems solved by technology

[0003] 1. Data sending and receiving are directly defined to the command word of the message, which makes the message transmission not flexible and transparent enough

[0004] 2. The message interval and message response time cannot be uniformly controlled, which affects the bus load and bus efficiency

[0005] 3. Since the vector word has only 16 bits, each terminal of the existing GJB289A has only 16 sub-addresses to trigger event messages, which makes the number of event transmission messages under each terminal insufficient

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