Data interaction method between processor and 1553B bus controller

Abstract

The invention provides a data interaction method between a processor and a 1553B bus controller, which is characterized in that a handshake interaction mechanism between the processor and the 1553B bus controller is realized through handshake interaction logic, and a processor waiting mechanism is established when a bus conflicts. The processor can be prevented from entering read-write over-time waiting when the handshake signal input of the 1553B bus controller fails, and the anti-burr filtering measure of the handshake signal is realized to carry out filtering for a certain threshold time, so that the 1553B bus data processing reliability is improved.

Description

technical field [0001] The invention relates to a data interaction method between a processor and a 1553B bus controller. Background technique [0002] The 1553B bus has the characteristics of high speed and flexibility, high communication efficiency, and easy modification, expansion and maintenance. One of the main avionics buses for future aerospace. The high stability and high reliability required by electronic products highlight the importance of data interaction reliability solutions. Scientific and reliable application protocol design is an important means to achieve 1553B communication stability. [0003] The 1553B bus processing method will use the non-zero wait mode for data interaction through the processor and the 1553B bus controller. If the data interaction confirmation mechanism is not used to control the waiting state, it is likely that the processor's one-time read and write time is less than the maximum delay time of the 1553B bus controller for bus confl...

AI Technical Summary

Problems solved by technology

In this case, there will be a probability of data read and write errors during bus conflicts, abnormal data updates sent through the 1553B bus, and failure to respond to 1553B bus commands.

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