1553B bus data communication method and 1553B bus data communication system

Abstract

The invention provides a 1553B bus data communication method and a 1553B bus data communication system, which are applied to an embedded operating system, and a driving program and an application program of a bus controller BC are loaded in the embedded operating system. The method comprises the following steps: S1, dividing all data packets into single messages of not more than 32 words; S2, enabling the BC to send a single message to an RT according to the round-robin RT sub-addresses, and appointing a data transmission protocol in the message content; S3, enabling the RT to sequentially receive the single message transmitted by each RT sub-address according to a single message interruption mode, and performing protocol analysis on the single message. According to the invention, the interface between the 1553B bus application program and the driving program is simplified, the universal design of the 1553B bus driving software is realized, the development difficulty of the 1553B bus application program is reduced through the transparent and standardized design of the driving software to the application software, and the software development efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a 1553B bus data communication method and system. Background technique [0002] MIL-STD-1553B (aircraft internal time-division command / response multiplex data bus) is a digital time-division serial data bus with high reliability, strong anti-interference ability, flexibility, high speed, expansion and maintenance It is widely used in the design of communication networks of domestic and foreign aviation and aerospace electronic systems because of its simplicity and simplicity. The transmission protocol of the 1553B bus is command / response mode, and the smallest unit of data transmission is "bus message". All message transmissions are issued by BC (bus controller) and responded by RT (remote terminal). [0003] At present, aviation and aerospace electronic products are gradually developing towards modularization and productization, especially the development of integ...

AI Technical Summary

Problems solved by technology

Due to the large differences in the 1553B bus data communication protocols between different types of tasks, and the variety of message transmission methods, the 1553B bus chip can be configured into different working modes such as BC and RT, as well as the characteristics of BC active and RT passive. The generalization and transparent design of the 1553B bus driver software bring many difficulties

Images