Implement method for high speed single bus communication

An implementation method, a single-bus technology, applied in the direction of bus network, adjustment of transmission mode, transmission modification based on link quality, etc., to achieve the effect of large tolerance range, high communication rate, and small number of pins

Active Publication Date: 2015-07-29
FUZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] It can be seen that for asynchronous communication, whether it is the UART protocol or the 1-Wire bus protocol, a relatively accurate clock is required to calculate the corresponding baud rate or delay,

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  • Implement method for high speed single bus communication
  • Implement method for high speed single bus communication
  • Implement method for high speed single bus communication

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] This embodiment provides a method to implement the present invention: a high-speed single-bus communication implementation method, based on the SDI signal line for bidirectional data transmission, the SDI signal line is connected to the host and the slave; the host through the SDI signal The slave machine automatically adapts the receiving rate and the start and stop of communication according to the received signal, forming a SAOW bus master-slave structure; the two-way transmission of the data adopts the command frame structure to transmit data information, and the command frame Including frame header, slave address, register address, data length, data, and frame tail; the frame header is represented by "4bit low level + 0.5bit high level"; the frame tail is represented by 2bit or 4bit high level Flat representation; the address of the slav...

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Abstract

The invention relates to an implement method for high speed single bus communication. Data double-way transmission is performed on basis of an SDI signal line, the SDI signal line is connected with a host and a slave, the host sends signals through the SDI signal line, the slave is automatically adapted to receiving rate and starting and stopping of communication according to the received signals so that a self adaption one wire (SAOW) host-slave structure is formed, data information is transmitted by means of a command frame structure in terms of the data double-way transmission, and a command frame comprises a frame header, a slave address, a register address, data length, data and a frame tail. By means of the implement method for high speed single bus communication, one-bus double-way communication can be achieved, two communication parties are not required to use fixed baud rate, the baud rate can be changed whenever possible, and the method can be applied to occasions with unstable working frequency.

Description

technical field [0001] The invention belongs to the field of communication protocols between chips, in particular to a method for realizing high-speed single-bus communication. Background technique [0002] As we all know, the communication buses commonly used between chips can be divided into parallel bus and serial bus, serial bus is divided into synchronous communication and asynchronous communication, synchronous communication such as SPI, I2C, etc., asynchronous communication protocols such as UART, 1-Wire, etc. Synchronous communication is generally considered to be faster than asynchronous communication. SPI is a standard designed by Motorola. It uses 4 lines (SDI, SDO, SCK, CS) to realize the communication process, and uses CS line to realize the selection of slaves; I2C bus is developed by PHILIPS to effectively realize the control between electronic devices. A simple bidirectional two-wire (SDA, SCL) bus was developed, using device addresses to distinguish dif...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L12/40
CPCH04L1/0008H04L1/0063H04L12/40052
Inventor 施隆照杨小玲
Owner FUZHOU UNIVERSITY
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