A booting construction method for a mobile phone

Abstract

The invention belongs to the mobile communication technology field, relates to a construction method of a handset bootloader, especially, relates to a design method of the bootloader in a Linux intelligent handset. The method of the invention not only can realize equipment initialization after the handset is electrified and then complete loading start of a Linux inner core, but also can be interconnected with the Windows system. Simple and rapid download of system softwares is realized by a USB2.0 protocol, mass and automatic download in each USB channel can be performed while supporting download of multi-USB, thereby the method is suitable for mass-production and can help developers to debug bottom sofewares and hardwares conveniently.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a construction method for starting and guiding a mobile phone, in particular to a method for designing a BootLoader in a Linux smart phone, which can be easily interconnected with a Windows system, and a method for hardware detection and mobile phone software downloading through the BootLoader . Background technique [0002] For a computer system, a boot process is required from power-on to operating system startup. The embedded Linux system currently used in smart phones is also inseparable from the bootloader, and this bootloader is called Bootloader. Bootloader (boot loader) is a small program executed before the Linux operating system runs, and is the first important link in software development. Through this small program, we can initialize hardware devices and establish a memory space mapping table, thereby establishing an appropriate system hardware and softwa...

AI Technical Summary

Problems solved by technology

If you want to control the mobile phone to enter the download mode, you must first log in to the mobile phone from the PC through SSH or Telnel. When the BootLoader starts, enter a keyboard message, and the BootLoader will enter the download mode after receiving this message. The data transmission can be through UART or USB. , after the completion, you need to type the command to complete the programming, if the input is wrong, sometimes it will lead to very dangerous consequences

[0003] Now the mobile phones that support the Linux system are smart phones or high-end phones. The software that needs to be downloaded is divided into several parts and is very large. Such a download process is far from meeting the needs of mass production.

In addition, the function of BootLoader is also relatively simple, only realizes some basic functions, and cannot perform some substantive work on the mobile phone side, such as screen testing or flash bad block management

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