Embedded system starting method and embedded device

An embedded system and embedded chip technology, applied in the computer field, can solve problems such as affecting the startup performance of the embedded system and the failure of the startup program to run normally.

Inactive Publication Date: 2012-01-11
WUXI ZGMICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor of the present application found that when the current embedded system is started, in order to prevent the startup program from running normally due to excessive frequency, when initializing the frequencies of Pll1, CPU and Bus, they are uniformly initialized to a set of specific frequ

Method used

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  • Embedded system starting method and embedded device
  • Embedded system starting method and embedded device
  • Embedded system starting method and embedded device

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Embodiment Construction

[0043] Embodiments of the present invention provide a method for starting an embedded system and an embedded device. When the embedded system is started, it can read a pre-stored configuration file, and initialize the startup frequency of the embedded system according to the configuration information therein, so that , in the process of starting the embedded system, since the working frequency suitable for itself is adopted, the starting performance of the embedded system is improved.

[0044] like figure 1 As shown, the embedded system startup method provided by the embodiment of the present invention includes:

[0045] Step S101, after the bootloader (download and start-up program) on the embedded chip starts, read the pre-stored configuration file;

[0046] Step S102, according to the configuration information in the configuration file, initialize the start-up frequency of the embedded system, and include the start-up frequency set according to the embedded system in the c...

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PUM

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Abstract

The invention discloses an embedded system starting method and an embedded device, which relate to the computer technology. The embedded system starting method comprises the following steps of: after a bootloader on an embedded chip is started, reading a pre-stored configuration file; according to the configuration information in the configuration file, initializing the start frequency of an embedded system; and starting the embedded system by using the initialized start frequency of the embedded system. Because the pre-configured configuration file is read by the bootloader before the start frequency of the embedded system is initialized, and the start frequency of the embedded system is initialized according to parameters in the configuration file, so the start performance of the embedded system is improved.

Description

technical field [0001] The invention relates to computer technology, in particular to an embedded system starting method and an embedded device. Background technique [0002] With the popularity of hand-held terminals such as mobile phones and MP4, users' demand for the functions of such hand-held terminals is also increasing, which requires the embedded system in the hand-held terminal to have more powerful processing capabilities. [0003] When the current embedded system is started, it usually reads the value of register STRAP_PIN[0] first, if the value is 1, execute the program of the external chip SPI (Serial Peripheral Interface, continuous peripheral interface) E2PROM, if the value is 0, Then read the bootloader on the CPU (Central Processing Unit, central processing unit) chip in the SOC (System-On-a-Chip, single-chip system) board and start normally. During normal startup, regardless of whether the processor is the main processor or a coprocessor, it will initializ...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 凌明
Owner WUXI ZGMICRO ELECTRONICS CO LTD
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