Self-checking method, device and host of internal integrated circuit host

A technology of internal integrated circuits and hosts, applied in the field of communication, can solve problems such as not being able to perform in real time
CN103530215BActive Publication Date: 2015-12-02XFUSION DIGITAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XFUSION DIGITAL TECH CO LTD
Publication Date
2015-12-02

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Abstract

The invention discloses a self-inspection method and device of an inter integrated circuit host and the host, and belongs to the technical field of communication. The method comprises the steps that the I2C host detects whether an I2C bus is busy; when the I2C bus is busy, data packets transmitted on the I2C bus are received, and whether a link of the I2C host is normal is detected according to the data packets. According to the method, when the I2C bus is busy, the data packets transmitted on the I2C bus are received, whether the link of the I2C host is normal is detected according to the data packets, and therefore it is not necessary to wait to conduct self-inspection of the I2C host when the I2C bus is free, self-inspection can be conducted in real time, and the problem that when the I2C host waits for self-inspection, the I2C host controlling the I2C bus at present breaks down and cannot be replaced by a spare I2C host, and therefore the I2C host controlling the I2C bus is changed repeatedly is solved.
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Description

technical field

[0001] The invention relates to the field of communication technology, in particular to a self-checking method, device and host for an internal integrated circuit host. Background technique

[0002] The I2C (InterIntegrated Circuit, internal integrated circuit) bus is a bus standard widely used in the field of microelectronics communication control, and is used to connect I2C masters, I2C slaves and other devices. The I2C master is a device that initiates transmission, generates a clock signal, and terminates transmission, and can become a device that controls the I2C bus. The I2C slave is a device addressed by the I2C master.

[0003] Usually there is only one master on the I2C bus. If there are two I2C masters connected to the I2C bus, one is the I2C master currently controlling the I2C bus, and the other is the standby I2C master. Taking the first I2C master as the I2C master currently controlling the I2C bus, and the second I2C master as the backup I2C ...

Claims

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