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Low-electric quantity starting-up method and user equipment

A user equipment, low-power technology, applied in the electronic field, can solve problems such as low charging current, startup failure, and long waiting time for startup, and achieve the effect of fast startup

Active Publication Date: 2014-01-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Embodiments of the present invention provide a low-battery power-on method and user equipment, which are used to solve the problem of startup failure or failure due to low charging current when the user equipment in the shutdown state due to low battery power in the prior art is charged through USB. Technical issues with long boot times

Method used

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  • Low-electric quantity starting-up method and user equipment
  • Low-electric quantity starting-up method and user equipment

Examples

Experimental program
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Embodiment 1

[0049] see figure 2 , the embodiment of the present invention provides a method for starting up with low power, including:

[0050] Step 201: the user equipment UE runs the first subroutine in the bootloader program bootloader to determine whether the UE is charged through the Universal Serial Bus interface USB;

[0051] Step 202: If the UE is charged through the USB and the battery power is lower than the startup threshold, the UE initializes the USB;

[0052] Step 203: When the USB enumerates the UE successfully, the UE runs the second subroutine in the bootloader to initialize the off-chip RAM in the UE;

[0053] Step 204: The UE runs the third subroutine in the bootloader to read the system image from the off-chip flash memory in the UE and load it into the off-chip RAM;

[0054] Step 205: The UE runs the system image to complete booting.

[0055] Wherein, in the embodiment of the present invention, the user equipment UE may be a user equipment such as a mobile phone, ...

Embodiment 2

[0077] see Figure 5 , the embodiment of the present invention provides a user equipment UE60, the user equipment UE60 includes: a system on chip 601, an on-chip flash memory 602, an off-chip random access memory 603, and a universal serial bus interface USB604; the on-chip system 601 includes: a processor 6011 and an on-chip random access memory The memory 6012 and the processor 6011 are used to run the first subroutine in the bootloader program bootloader to determine whether the UE is charged through the USB604, and the bootloader is loaded in the on-chip random access memory 6012; if the UE is charged through the USB604 and the battery power of the UE is lower than When starting the threshold, the processor 6011 initializes the USB604; when the USB604 enumerates the UE successfully, the processor 6011 runs the second subroutine in the bootloader to initialize the off-chip RAM 603; the processor 6011 runs the third subroutine in the bootloader, To read the system image from...

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Abstract

The invention discloses a low-electric quantity starting-up method and user equipment. The low-electric quantity starting-up method comprises the following steps: the user equipment (UE) runs a first subprogram in a boot loader so as to judge whether the UE is charged through a universal serial bus (USB); if the UE is charged through the USB and the battery level is lower than a starting-up threshold value, the UE initializes the USB; when the USB enumerates the UE successfully, the UE runs a second subprogram in the boot loader so as to initialize an off-chip random access memory in the UE; the UE runs a third subprogram in the boot loader so as to read a system mirror image from an off-chip flash memory in the UE and load the system mirror image into the off-chip random access memory; the UE runs the system mirror image so as to complete starting-up.

Description

technical field [0001] The present application relates to the field of electronic technology, and in particular to a method for starting up with low power and user equipment. Background technique [0002] Multi-core smart phones have become the new darling of the mobile phone market. At present, the more popular smart phones have 4 cores, and there will be 8-core or even more-core smart phones in the future. Since multi-core smartphones support functions such as network access, video entertainment, etc., users spend much more time using multi-core phones than single-function phones. Therefore, the power consumption of multi-core phones will gradually increase. It's easy to get exhausted in the process. [0003] Generally, the mobile phone is charged by a dedicated charger, but the notebook computer can also charge the mobile phone through a USB (Universal Serial BUS, Universal Serial Bus) interface. According to the charging specification of the USB2.0 interface, when the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/725G06F9/445
CPCG06F9/4406G06F1/26
Inventor 陈迎国潘时林
Owner HUAWEI TECH CO LTD
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