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Time acquisition method and its processor, processing system and storage device

An acquisition method and technology of the main processor, applied in the field of information processing, can solve the problem that the coprocessor is difficult to obtain time information, etc.

Active Publication Date: 2021-01-26
AUTOCHIPS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the main processor is turned off at this time, it is difficult for the coprocessor to obtain time information

Method used

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  • Time acquisition method and its processor, processing system and storage device
  • Time acquisition method and its processor, processing system and storage device
  • Time acquisition method and its processor, processing system and storage device

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Embodiment Construction

[0026] The solutions of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present application.

[0028] The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character " / " in this article generally indicates that the contextual objects are an "or" relationship.

[0029] In order to facilitate the understanding of the solution of the present application, the processing system of the present application is first described with ...

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Abstract

The application discloses a time acquisition method, a processor, a processing system and a storage device thereof. Wherein, in the method, the main processor is powered on under the control of the coprocessor; when it is determined that the coprocessor requests acquisition time, the main processor reads Get time information, and output the time information to the co-processor; wherein, the real-time clock circuit is still powered to work when the main processor is powered off. The above solution can realize the acquisition of time by the coprocessor after the main processor is turned off, and the processing power consumption is low.

Description

technical field [0001] The present application relates to the technical field of information processing, and in particular to a time acquisition method, a processor, a processing system and a storage device thereof. Background technique [0002] At present, many hardware systems, such as In-Vehicle Infotainment (IVI), adopt a dual-processor design, and the main co-processor cooperates to realize different information processing of the hardware system. Usually, in order to save cost, only the main processor is equipped with a real-time clock circuit in the main coprocessor, so when the main processor needs to obtain time, it can obtain time information from the real-time clock circuit. When the coprocessor needs to obtain time information, it sends a time obtaining request to the main processor, so that the main processor obtains time information from the real-time clock circuit and sends it to the coprocessor. However, if the main processor is turned off at this time, it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/14G06F1/26G06F1/3293
CPCG06F1/14G06F1/266G06F1/3293
Inventor 戴伟
Owner AUTOCHIPS