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A universal serial bus type-c interface detection method and terminal

A universal serial bus and interface detection technology, which is applied in the field of communication, can solve the problems of fast corrosion of CCl pin and CC2 pin, and achieve the effect of slowing down the corrosion speed

Active Publication Date: 2021-06-29
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a universal serial bus C-type interface detection method and terminal to solve the problem of fast corrosion of the CCl pin and the CC2 pin in the USB Type-C interface in the related art

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  • A universal serial bus type-c interface detection method and terminal
  • A universal serial bus type-c interface detection method and terminal
  • A universal serial bus type-c interface detection method and terminal

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] See figure 1 , figure 1 It is a flowchart of a USB Type-C interface detection method provided by an embodiment of the present invention. The USB Type-C interface detection method can be applied to a terminal, and the terminal includes an insertion detection circuit, and the insertion detection circuit is used to pass the The first pin of the USB Type-C interface detects whether an external device is connected to the USB Type-C interface. Such ...

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Abstract

Embodiments of the present invention provide a Universal Serial Bus Type-C USB Type-C interface detection method and a terminal, the method can be applied to a terminal, the terminal includes an insertion detection circuit, and the insertion detection circuit is used to pass the USB The first pin of the Type-C interface detects whether an external device is connected to the USB Type-C interface, and the method includes obtaining the first detection result of the insertion detection circuit, and obtaining a reference to the USB Type-C interface. The second detection result of the second pin of the second pin, the second pin includes at least one of the power bus VBUS pin, the configuration channel CC1 pin and the CC2 pin; if the first detection result is consistent with the second If the detection results do not match, the external device detection is performed through the CC1 pin and the CC2 pin. The embodiment of the present invention can slow down the corrosion speed of the CCl pin and the CC2 pin in the USB Type-C interface.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a method for detecting a Universal Serial Bus Type C interface and a terminal. Background technique [0002] The USB Type-C (Universal Serial Bus Type-C, Universal Serial Bus Type-C) interface supports double-sided insertion with the USB connector, and will be more and more widely used in electronic devices. According to the stipulations in the standard specification of the USB Association, the USB Type-C interface has two opposite pin surfaces, and each surface has 12 pins. The Type-C interface includes a configuration channel CCl pin and a CC2 pin (Configuration Channel, configuration channel) on two opposite pin surfaces. The voltage on the CCl pin and the CC2 pin is periodically pulled up and down. , the high level on the CCl pin and the CC2 pin of the DRP device will be pulled low; when the DRP device is externally connected to a DFP ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/22G06F13/40G06F13/42
CPCG06F11/221G06F13/4068G06F13/4282G06F2213/0042
Inventor 张涛卫俊臣
Owner VIVO MOBILE COMM CO LTD