Synchronous multi-home peer-to-peer bus communication system

Abstract

The invention provides a synchronous multi-home peer-to-peer bus communication system which comprises a synchronizing signal interface circuit, a synchronizing signal configuration module and a data sending control module. The synchronizing signal interface circuit adopts a difference level switch chip D2 with an enable pin, and synchronizing signals enter a D1 through the D2 and an optocoupler V2 in an input mode; in an output mode, the signals are output from the D1 and then output through an optocoupler V1A and the D2; input enable signals and output enable signals of the D2 are connected together and then connected to the D1 through an optocoupler V1B; the synchronizing signal configuration module is divided into a switch type input mode and a switch type output mode and connected with the chip D1; the data sending control module sends the data start time and time length information to the chip D1 through an interface of the chip D1. According to the synchronous multi-home peer-to-peer bus communication system, the problem that important data cannot be processed in time due to collision when the mass data are transmitted in a multi-home peer-to-peer bus system is solved.

Description

technical field [0001] The invention belongs to the field of electronic circuits, in particular to a synchronous multi-master peer-to-peer bus communication system. Background technique [0002] Multi-master peer-to-peer buses usually have the characteristics of high speed and high reliability. Any node on the network can actively send messages, and non-destructive bus arbitration technology is used to avoid bus data conflicts. It has point-to-point, point-to-multipoint and Various transmission methods such as global broadcasting. [0003] Based on the above advantages, the multi-master peer-to-peer bus communication system is widely used in vehicle systems. With the continuous improvement of the system complexity and the massive growth of communication data, the frequency of data conflicts on the multi-master peer-to-peer bus system has greatly increased, resulting in the inability to obtain important information. Deal with it in a timely manner. Contents of the inventio...

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Problems solved by technology

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a synchronous multi-master peer-to-peer bus communication system, which solves the problem that important data cannot be processed in time due to conflicts when massive data is transmitted on the multi-master peer-to-peer bus system question

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