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Time-sharing serial communication method and system

A serial port communication and serial port technology, which is applied in the field of time-sharing serial port communication, can solve the problems of communication conflicts and high bit error rate, and achieve the effect of reducing the communication bit error rate

Active Publication Date: 2015-12-23
SHENZHEN ZHENBANG TECH
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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a time-sharing serial communication method and system, aiming to solve the problems of communication conflicts and high bit error rate in the above-mentioned serial communication mode

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  • Time-sharing serial communication method and system

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] figure 1 A specific implementation flowchart of the time-sharing serial port communication method provided by the first embodiment of the present invention is shown. see figure 1 As shown, a kind of time-sharing serial port communication method provided by this embodiment includes:

[0033] In S101, an electrical connection is established between the master and the slave.

[0034] In this embodiment, a signal line is used to connect the communication serial port of the master and the communication serial port of the slave, so as to establish an electrical connection between the master and...

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Abstract

The present invention provides a time-sharing serial communication method and system, and relates to the technical field of communications. The method comprises: establishing an electrical connection between a master and a slave; obtaining configuration parameters of a communication serial port of the master, and performing parameter configuration to a communication serial port of the slave according to the configuration parameters; sending first data to the slave by the master, and after the first data is received by the slave, delaying a first preset time and returning a response to the master; and if the response returned from the slave is received by the master within a second preset time, sending second data to the slave after the first preset time is delayed, wherein the second preset time is greater than the first preset time. According to the time-sharing serial communication method and system, serial communication is not affected by the number of transmitted bytes, so as to avoid the problem in the prior art of communication conflict between sending-receiving and resending that easily occurs when the number of the transmitted bytes is large, thereby greatly reducing communication error rate.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a time-sharing serial port communication method. Background technique [0002] Serial port communication is a very important and commonly used communication method between single-chip microcomputer and embedded systems such as DSP (Digital Signal Processor, digital signal processor), as well as between embedded systems and personal computers or wireless modules. At present, products using serial communication technology are generally traditional communication methods. First, the master configures the parameters of the communication serial port of the slave, so that the configuration parameters of the slave and the master communication serial port match; and then between the master and the slave. The serial communication is carried out in a question-and-answer mode. If the master sends data to the slave but does not receive a reply from the slave, it is considere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/42
CPCG06F13/4282
Inventor 陈志杰柯忠乘
Owner SHENZHEN ZHENBANG TECH
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