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A small batch data transmission method

A data transmission method and data transmission technology, applied in the field of small batch data transmission, can solve the problems of cumbersome, small, basically no more than 10 bytes, etc., and achieve the effect of high efficiency and convenience.

Inactive Publication Date: 2008-01-09
深圳市合丰泰科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These transmission protocols are very suitable for large-scale data transmission, but in small-scale data transmission, such as transmitting control commands between chips, the amount of transmitted data is very small, basically no more than 10 bytes, and the above protocols are adopted The transmission is cumbersome, because the general transmission method needs to verify the transmitted data

Method used

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  • A small batch data transmission method

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Embodiment Construction

[0013] The small batch data transmission method of the present invention will be further described in detail below.

[0014] The present invention provides a kind of small-batch data transmission method, is used for the control order that transmission data amount is not too large between the chip, as shown in Figure 1, the main control CPU in the figure can be any general programmable input and output interface ( GPIO) control chip, SM1628 is a chip with two-way communication function, the two are connected to three pairs of GPIO ports through a data line, a signal selection line and a clock line. Please refer to the working principle diagram and timing diagram shown in Figure 2 and Figure 3. In this embodiment, the CPU is required to send 3 bytes of data to the SM1628. The specific workflow is as follows:

[0015] a) First, the main control CPU sends out a letter selection signal, and sets the letter selection line to a low level (see Figure 2).

[0016] b) The main control ...

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Abstract

The method is used for transmitting command between chips. It comprises: using three physical lines to build connection with the system chip; one of three lines is data line used to transmit data, one is clock line used for generating clock signal, and one is signal selecting line used for judging the validity of the data.

Description

technical field [0001] The invention relates to a data transmission protocol in the field of data communication, in particular to a small-batch data transmission method. Background technique [0002] At present, in the field of communication, there are many data transmission protocols, such as the common serial data transmission protocol, IIC bus transmission protocol, CAN bus transmission protocol and so on. These transmission protocols are very suitable for large-scale data transmission, but in small-scale data transmission, such as transmitting control commands between chips, the amount of transmitted data is very small, basically no more than 10 bytes, and the above protocols are adopted The transmission becomes cumbersome, because the general transmission method needs to verify the transmitted data. In fact, the transmission of small batches of data can be done without any verification, which is simpler and more convenient. Contents of the invention [0003] The pur...

Claims

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Application Information

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IPC IPC(8): H04L25/00H04L29/06
Inventor 郭德华邵寅孟云芳杨玉欢茅俊君
Owner 深圳市合丰泰科技集团有限公司