Communication method and system for transmitting multiple groups of information through serial ports

Abstract

The invention discloses a communication method and system for transmitting multiple groups of information through serial ports, and belongs to the technical field of electronic information. The communication system simultaneously sends a plurality of pieces of information to a plurality of receiving ends through a sending end via serial ports, and comprises a host and a plurality of slaves, wherein the configuration of the host is the same as the configuration of the slaves, and each of the host and the slaves is composed of an STM32 and an Xtend which communicate through the serial ports; thextends of the host and the slaves adopt broadcast networking; and the host sends any data or instructions to all the slaves at the same time. The communication method comprises the steps that the sending end sends a start code, data and an end code, and the receiving ends judge that the received array is the array according to the received start code; and after all the data are sent, the sendingend sends a signal, and the receiving ends send a verification code to the sending end so as to perform verification. The communication method and system has the advantages of being simple and reliable, being able to realize simultaneous transmission of multiple groups of information, and through subsequent verification, being able to completely ensure correct information receiving and transmitting, and guaranteeing the reliability.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and relates to a communication method and system for transmitting multiple sets of information through a serial port, in particular to a communication system and method for sending multiple pieces of information from a sending end to multiple receiving ends through a serial port. Background technique [0002] For scenarios that require absolute reliability, such as aerial typewriters, the transmission of information needs to ensure absolute correctness. At present, the sending and receiving format of the serial port generally adopts the 96N81 (baud rate is 9600, no check digit, 8bits is a set of data transmission, and one stop bit) format. If multiple sets of array-like data need to be transmitted, the format cannot tell which set of arrays it is and cannot guarantee reliability. And if the data is transmitted by one-to-many receivers in a broadcast mode, its reliability cannot be...

AI Technical Summary

Problems solved by technology

If multiple sets of array-like data need to be transmitted, the format cannot tell which set of arrays it is and cannot guarantee reliability

And if the data is transmitted by one-to-many receivers in a broadcast mode, its reliability cannot be guaranteed, and data may be missed or missed, and it cannot be guaranteed to be sent and received completely and correctly.

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