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Communication method for improving communication error and electronic device using the same

A technology for electronic equipment and communication errors, which is applied in the direction of error prevention/detection, multiplex communication, error detection/correction, etc. using return channels, and can solve problems such as communication errors between master devices and slave devices

Inactive Publication Date: 2008-03-26
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When the slave device executes the process (or task) for the command transmitted from the master device, SCL is sometimes forced to pull down to low level, which causes communication errors between the master device and the slave device
In some cases, a slave or an entire set fails due to the recognition of the 9th clock cycle during the transmission of the ACK signal as a start condition

Method used

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  • Communication method for improving communication error and electronic device using the same
  • Communication method for improving communication error and electronic device using the same
  • Communication method for improving communication error and electronic device using the same

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Embodiment Construction

[0037] Exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same elements are indicated by the same reference numerals throughout. In the following description, detailed descriptions of known functions and constructions incorporated herein have been omitted for conciseness and clarity.

[0038] FIG. 2 is a schematic block diagram of an electronic device using a communication method according to an exemplary embodiment of the present invention.

[0039] Referring to FIG. 2, the electronic device includes a master device 100 and a plurality of slave devices 200-1, 200-2, ..., and 200-n.

[0040] The master device 100 performs data communication with a plurality of slave devices 200-1, 200-2, ..., and 200-n through serial data (SDA) and serial clock (SCL) lines. The serial data format transmitted through the SDA line is composed of 9-bit data, and the 9-bit data is composed of 8-bit data and...

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Abstract

A communication method for improving a communication error and an electronic device using the same are provided. The electronic device according to the exemplary embodiment of the present invention includes a plurality of slaves (200-1, 200-n), and a master(100) which generates clocks required in data communications with the slaves in accordance with the slave working time information, and provides the clocks to the slaves (200-1, 200-n). The slave working time is the time a slave takes to handle commands issued by the master (100). Accordingly, the occurrence of communication errors between master / slave pairs can be reduced.

Description

technical field [0001] Apparatus and methods consistent with the present invention relate to a communication method for improving communication errors and electronic equipment using the method, and more particularly, to a method for improving communication by I2C (referred to as inter-IC or I2C) A communication method for a communication error generated by a slave device during communication and an electronic device using the method. Background technique [0002] I2C communication is a serial communication method originally developed by Philips for data communication between integrated circuits (ICs), in which a device called a master that initiates a transaction or communication Control many slave devices (slave) through two signal lines. [0003] FIG. 1 is a diagram for explaining a basic protocol used in I2C communication. [0004] Referring to FIG. 1, signal lines used in I2C communication are a serial data (serial data, SDA) line and a serial clock (serial clock, SCL)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/24H04L1/16H04J3/06
CPCG06F11/141H04L1/1867H04L7/0008G06F13/14
Inventor 朴汉镇
Owner SAMSUNG ELECTRONICS CO LTD