WO2012097574A1

WO2012097574A1 - Wireless communication terminal and self-starting method thereof

Info

Publication number: WO2012097574A1
Application number: PCT/CN2011/076887
Authority: WO
Inventors: 王琪
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-01-19
Filing date: 2011-07-06
Publication date: 2012-07-26
Also published as: CN102073524A; CN102073524B

Abstract

Disclosed are a wireless communication terminal and a self-starting method thereof, comprising: the BIOS of a PC running a GRUB bootstrap found by searching a USB device; the GRUB bootstrap booting start-up of an operating system embedded in a wireless communication terminal inserted into a PC; the embedded operating system running a switching program to switch the wireless communication terminal to a normal operating mode and running a preloaded data card driver program and/or UI software. The technical solution of the present invention consists in avoiding completely the occurrence of compatibility problems with the operating system of a PC during the process of installing UI software and data card driver programs by a wireless communication terminal.

Description

Wireless communication terminal and self-starting method thereof

The present invention relates to the field of embedded software development, and in particular, to a wireless communication terminal and a self-starting method thereof. Background technique

Universal Serial Bus (USB) is a portable Internet tool that uses USB interface with the extension and maturity of wireless network technology. At the same time, with the development of 3G technology, USB data card provides us with A more portable, faster, and easier to use external expansion with a computer (PC, Personal Computer).

The USB data card provides users with a good PC external expansion means, achieving high-quality high-speed network connection. In addition, the USB data card has the following advantages and features: (1) Plug-and-play, hot-swappable with USB devices (2) Small size, easy to carry, suitable for use when going out; (3) USB data card based on 3G network can also provide users with high-speed and high-quality network connection; (4) In addition to network connection, it can also Realize functions such as SMS, voice call, video call, T-Flash card reader.

1 is a flow chart of a working mode of a USB data card in the prior art. As shown in FIG. 1, the USB data card is first enumerated as a CDROM (Compact Disc Read-Only Memory) device for Provide users with user interface (UI, User Interface) software and data card driver; if the UI software and data card driver of the device are already installed in the PC, it will be directly used by the resident detection program in the operating system. Run the UI software and data card driver, and issue the switch command to switch the USB data card to the normal working mode (it is also possible to switch directly from the resident program, or use the filter driver of the Mass Storage device to switch, depending on the data card The switching mode used is determined), the USB data card is combined with the UI software. If the UI software and data card driver of the device are not installed in the PC at this time, start to install the UI software and data card driver from the CDROM. The installation process takes several minutes, and then The filter driver sends a switching command to switch the USB data card to the normal working mode, the UI software runs automatically, and the USB data card works with the UI software; therefore, whether the data card works normally has a great relationship with the operating system in the user PC; First of all

The operating system of the PC must be able to recognize the CDROM device normally (this is not guaranteed on a PC with some problematic virtual CD-ROM software installed). Secondly, UI software and drivers must be installed smoothly (due to anti-virus software). The limitation of the software or other software conflicts may cause the installation to fail.) After that, it can be used normally in the operating system of the PC. Based on the working mode of the USB data card, as the function of the data card product increases and becomes complicated, The USB data card still has some shortcomings in the current implementation method, which affects the user experience. The disadvantages of the USB data card are: (1) In order to concurrently concurrently use multiple services, the USB data card needs to simultaneously virtualize and enumerate multiple functional devices. , also known as interface, for example, VOUSB interface for voice calls, AT interface for sending and receiving text messages, NIDS interface for implementing Microsoft Internet access specifications, etc. These devices are dedicated and need to install drivers provided by third parties. Can be used, which requires the user to install multiple device drivers the first time they are used. At the same time, in order to automate the installation of the driver, the driver is integrated into the user interface (UI, User Interface) software on the PC side, so that the entire UI software needs to be installed on the first use, and then installed on the hard disk and The location such as the registry leaves relevant information, thus increasing the complexity of use and system garbage; (2) It takes a certain waiting time to install the driver for the device, and the installation time is different under different operating systems; In some systems with slower driver installations, such as Windows VISTA system, the driver of each device takes about 20~30 seconds to install. If the USB data card product used by the user will virtualize multiple devices, then It takes a few minutes of installation time, which seriously affects the user experience; (3) In the Windows operating system, during the installation process, the driver on the PC side is affected by the current system environment, installed software and drivers. The influence of factors such as programs, occasionally compatibility problems arise, the external manifestation is

In the Windows Device Manager, a yellow exclamation error occurs, causing the device to be unusable; although this is a small probability of driver installation problems, if the USB data card virtualizes multiple devices, the probability of such compatibility problems will inevitably increase. , thus affecting the normal use of the user; (4) In the Windows operating system, the user is divided into different security levels, only under the administrator level can install various software and drivers, non-administrators Users with permissions will be subject to varying degrees of restrictions; due to this limitation, if we temporarily insert a USB data card into another PC for temporary use, it will not be able to properly install the UI software on the PC side because it is not an administrator. The driver cannot be installed properly, which affects the normal use of the user. Summary of the invention

In view of this, the main object of the present invention is to provide a wireless communication terminal and a self-starting method thereof, which completely avoids compatibility with a PC operating system during a process of installing a UI software and a data card driver in a wireless communication terminal. problem.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

The present invention provides a wireless communication terminal, which has been inserted into a PC, and includes: a GRUB boot program module and an embedded operating system module;

The GRUB bootstrap module, which is used to boot the embedded operating system module after it starts running;

The embedded operating system module, after it has started running, runs the switching program to switch the wireless communication terminal to the normal working mode and runs the pre-installed data card driver and/or UI software.

In the above wireless communication terminal, the wireless communication terminal further includes: a USB interface module, a SCSI command processing module, a SCSI-Flash interface conversion module, and a flash read/write module;

The USB interface module is configured to enumerate the USB device when the BIOS of the PC performs a self-test; receive the SCSI command sent by the BIOS of the PC, and forward the SCSI command to the SCSI command. Processing module

a SCSI command processing module, configured to receive a SCSI command forwarded by the USB interface module, and send the data block start number and the data block number information in the SCSI command to the SCSI-Flash interface conversion module;

a SCSI-Flash interface conversion module, configured to convert the data block start number and the data block quantity information into an actual storage address of the GRUB boot program and the embedded operating system in the flash storage area, and send the actual storage address to Flash read and write module;

The flash read/write module is configured to read the GRUB boot program and the embedded operating system from the actual storage address, and report the BIOS to the PC.

In the above wireless communication terminal, the SCSI-Flash interface conversion module converts the data block start number and the data block quantity information into the GRUB boot program and the actual storage address of the embedded operating system in the Flash memory area:

The SCSI-Flash interface conversion module calculates the starting address offset of the data to be read from the flash memory area according to the data block start number and the data block number information according to a data block of 512 bytes. Value, and then use the pre-stored GRUB boot program and the first address of the Flash memory area of the embedded operating system to calculate the first address of the data that the PC's BIOS needs to read.

In the above wireless communication terminal, the GRUB boot program module boots the embedded operating system module to start running as:

After the GRUB boot program module starts working, the GRUB boot program module boots the embedded operating system module to start running; when the embedded operating system module starts running under the boot of the GRUB boot program module, a virtual ramdisk is created in the memory to copy itself. Save to the virtual ramdisk

In the above wireless communication terminal, the embedded operating system module running switching program switches the wireless communication terminal to the normal working mode, and runs the pre-installed data card driver and/or UI software as: After the embedded operating system module starts running on the basis of the virtual ramdisk, the memory switching program runs, switches the wireless communication terminal enumerated as the USB device to the normal working mode of the multi-port, and runs the pre-installed data card driver and/or Or UI software.

The invention also provides a method for self-starting of a wireless communication terminal, the method comprising:

The BIOS of the PC runs the GRUB bootloader in the searched USB device;

The GRUB boot program boots the embedded operating system in the wireless communication terminal that has been inserted into the PC, and the embedded operating system runs the switching program to switch the wireless communication terminal to the normal working mode and runs the pre-installed data card driver and/or UI. software.

In the above method, before the BIOS of the PC runs the GRUB boot program in the searched USB device, the method further includes:

When the BIOS of the PC performs a self-test, the wireless communication terminal inserted into the PC enumerates the USB device, and the BIOS of the PC searches for the GRUB boot program in the USB device.

In the above method, when the BIOS of the PC performs a self-test, the wireless communication terminal inserted into the PC enumerates the USB device as:

Insert the wireless communication terminal before the PC is turned on, or restart the PC after inserting the wireless communication terminal into the PC. When the BIOS of the PC performs a self-test, the USB interface module of the wireless communication terminal enumerates the USB device.

In the above method, the BIOS of the PC searches for the GRUB boot program in the USB device as:

The BIOS of the PC sends a SCSI command to the USB device, and the USB interface module enumerated as the USB device receives the SCSI command, and forwards the received SCSI command to the SCSI command processing module of the wireless communication terminal;

The SCSI command processing module receives the SCSI command, and sends the data block start number and the data block number information in the SCSI command to the SCSI-Flash interface conversion module of the wireless communication terminal;

The SCSI-Flash interface conversion module converts the data block start number and the data block number information into The actual storage address of the GRUB bootloader and the embedded operating system in the flash memory area, and

The Flash read/write module reads the GRUB boot program and the embedded operating system from the actual storage address, and then sends the BIOS to the PC.

In the above method, the SCSI-Flash interface conversion module converts the data block start number and the data block quantity information into a GRUB boot program and an actual operating address of the embedded operating system in the Flash memory area:

In the above method, the GRUB boot program in the searched USB device of the BIOS of the PC is:

After the BIOS of the PC is based on the GRUB boot program and the embedded operating system reported by the Flash read/write module of the wireless communication terminal, the BIOS of the PC determines that it searches for the GRUB boot program in the USB device, and runs the GRUB boot program, and the GRUB boots. The program starts to guide the work.

In the above method, the GRUB boot program boots the embedded operating system in the wireless communication terminal inserted into the PC to start running as:

After the GRUB boot program starts working, the GRUB boot program boots the embedded operating system of the wireless communication terminal to start running; when the embedded operating system starts running under the guidance of the GRUB boot program, a virtual ramdisk is created in the memory of the wireless communication terminal, Save it to the virtual ramdisk after copying itself

In the above method, the embedded operating system running switching program switches the wireless communication terminal to the normal working mode, and runs the pre-installed data card driver and/or UI software as: After the embedded operating system starts running on the virtual ramdisk, the memory switching program of the wireless communication terminal is operated, and the wireless communication terminal enumerated as the USB device is switched to the normal working mode of the multi-port; the pre-installed data card driver is run. And / or UI software, the wireless communication terminal enters the normal working state, and starts working with the UI software.

The wireless communication terminal provided by the invention and the self-starting method thereof, the BIOS of the PC runs the GRUB boot program in the searched USB device; the GRUB boot program guides the embedded operating system in the wireless communication terminal inserted into the PC to start running, embedding The operating system operation switching program switches the wireless communication terminal to the normal working mode, and runs the pre-installed data card driver and/or UI software to boot the PC into the embedded operating system of the wireless communication terminal due to the embedded operation. The UI software and data card driver are pre-installed in the system, so the function of the data card can be directly used without any software installation. At the same time, because the embedded operating system is characterized by the wireless communication terminal, it is dedicated to the use of the wireless communication terminal. The operating system connected to the network, so it not only has a high running speed at runtime, but can be automatically cleared on the next reboot when it is infected by a virus.

When the PC is powered on, the embedded communication system built in the wireless communication terminal is operated by the guiding function of the wireless communication terminal. In the operating system, the same user interface as the operating system professional version is used, and the hard disk of the PC can be accessed normally, so Affect users to browse the Internet and upload/download data; and because it is not running in the PC operating system, it will only cause damage to the embedded operating system of the wireless communication terminal after being attacked by the virus. The embedded operating system can be automatically restored.

Since the embedded operating system is provided by the wireless communication terminal, the interface of the operating system, the pre-installed software, the UI software used for the wireless communication terminal, the data card driver, etc. can be pre-customized and can be directly used. No need to install UI software, no need to install data card driver, to achieve true driver-free installation; and the driver and UI software will not leave any installation traces and system garbage in the PC's operating system. If the operating system of the PC is Linux, etc., it is an operating system that is not fully supported by the wireless communication terminal. It can also be directly used in the operating system by booting the PC to the embedded operating system of the wireless communication terminal. The wireless communication terminal takes full advantage of all the functions of the wireless communication terminal, resulting in a better user experience.

Since many companies' PCs and other people's PCs do not have open administrator rights, the UI software and drivers of the wireless communication terminal cannot be installed at this time, that is, the wireless communication terminal products cannot be used at all; however, the present invention is provided. The wireless communication terminal and the compatibility method thereof with the operating system of the computer can directly boot the operating system of the PC to the embedded operating system of the wireless communication terminal at the time of booting, and have no permission limitation at all, and can normally use all the wireless communication terminals. Features.

Since the built-in operating system of the wireless communication terminal is used, the operating system has been customized and tested by the manufacturer, and the UI software and the data card driver are pre-installed, thereby maximally eliminating the use of the wireless communication terminal in cooperation with the operating system of the PC. Among them, various compatibility and software conflicts arise due to the diversification of the system environment and installation software. DRAWINGS

1 is a flow chart of a working mode of a USB data card in the prior art;

2 is a schematic structural diagram of a wireless communication terminal of the present invention;

FIG. 3 is a schematic flow chart of a method for implementing self-starting of a wireless communication terminal according to the present invention. detailed description

The System Boot Manager (GRUB, GRand Unified Bootloader) is a multi-OS boot program from the GNU project. GRUB is an implementation of the multi-boot specification that allows users to have multiple operating systems simultaneously on a computer and select the operating system they want to run when the computer starts. GRUB can be used to select different kernels on the operating system partition and can also be used to pass boot parameters to these kernels. The embedded operating system is based on the embedded operating system with components as components. The embedded operating system includes embedded Windows operating system, embedded Linux operating system, embedded Mac operating system and embedded Android operating system, etc. Embedded Windows The operating system can be an embedded Windows XP operating system, an embedded Windows 7 operating system, etc.; the embedded operating system can also run smoothly in the PC; the embedded operating system is based on the professional version of the operating system, and the professional version is divided into about 12,000 components. Device manufacturers can freely select the components that need to be loaded according to their own needs and hardware configuration. It is very convenient to change and tailor the operating system. The embedded operating system can realize almost all functions of the operating system professional version according to the selected components. It can also support various applications under the operating system, which is very practical and flexible.

Based on the foregoing GRUB and the embedded operating system, the present invention provides a wireless communication terminal and a self-starting method thereof. The basic idea is: the BIOS of the PC runs the GRUB boot program in the searched USB device; the GRUB boot program boot has been inserted. The embedded operating system in the wireless communication terminal of the PC starts running, and the embedded operating system running switching program switches the wireless communication terminal to the normal working mode and runs the pre-installed data card driver and/or UI software.

The invention will be further described in detail below with reference to the drawings and specific embodiments.

The present invention provides a wireless communication terminal. FIG. 2 is a schematic diagram of the structure of the wireless communication terminal of the present invention. As shown in FIG. 2, the wireless communication terminal includes: a GRUB boot program module 21, and an embedded operating system module 22;

The GRUB boot program module 21, after starting the operation itself, boots the embedded operating system module 22 to start running;

The embedded operating system module 22, after it has started running, runs the switching program to switch the USB data card to the normal working mode and runs the pre-installed data card driver and/or UI software.

The wireless communication terminal further includes: a USB interface module 23, a SCSI command processing module 24, a SCSI-Flash interface conversion module 25, and a flash read/write module 26; The USB interface module 23 is configured to enumerate the USB device when the BIOS of the PC performs a self-test; receive the SCSI command issued by the BIOS of the PC, and forward the SCSI command to the SCSI command processing module 24;

The SCSI command processing module 24 is configured to receive the SCSI command forwarded by the USB interface module 23, and send the data block start number and the data block number information in the SCSI command to the SCSI-Flash interface conversion module 25;

The SCSI-Flash interface conversion module 25 is configured to convert the data block start number and the data block quantity information into an actual storage address of the GRUB boot program and the embedded operating system in the flash storage area, and send the actual storage address To the Flash read and write module 26;

The flash read/write module 26 is configured to read out the GRUB boot program from the actual storage address and the embedded operating system, and report the BIOS to the PC.

The SCSI-Flash interface conversion module 25 converts the data block start number and the data block number information into the actual storage addresses of the GRUB boot program and the embedded operating system in the Flash memory area:

The SCSI-Flash interface conversion module 25 is a unit of 512 bytes according to one data block, and calculates a starting address offset of data to be read from the flash memory area according to the data block start number and the number of data blocks. The value is shifted, and the first address of the data that the PC's BIOS needs to read is calculated by using the pre-stored GRUB boot program and the first address of the flash memory area of the embedded operating system.

The GRUB boot program module 21 directs the embedded operating system module 22 to start running as:

After the GRUB boot program module 21 starts working, the GRUB boot program module 21 directs the embedded operating system module 22 to start running; when the embedded operating system module 22 starts running under the boot of the GRUB boot program module 21, a virtual ramdisk is created in the memory. , copy it to the virtual ramdisk.

The embedded operating system module 22 runs a switching program to switch the wireless communication terminal to normal Work mode, and run the pre-installed data card driver and / or UI software is:

After the embedded operating system module 22 starts running on the basis of the virtual ramdisk, the memory switching program is executed, the wireless communication terminal enumerated as the USB device is switched to the normal working mode of the multi-port, and the pre-installed data card driver is run and / or UI software.

The wireless communication terminal in the present invention refers to a wireless communication device with a USB interface as an external interface, such as a smart mobile terminal, a tablet computer, and a USB data card; etc.; below, the wireless communication terminal is a USB data card and an embedded operating system is embedded. The Windows operating system is taken as an example to describe the method for starting the wireless communication terminal.

Based on the above device, the present invention also provides a method for self-starting of a wireless communication terminal, and FIG. 3 is a schematic flowchart of a method for implementing self-starting of a wireless communication terminal according to the present invention. As shown in FIG. 3, the method includes the following steps:

Step 301: When the BIOS of the PC performs a self-test, the USB data card inserted into the PC enumerates the USB device;

Specifically, inserting a USB data card before the PC is turned on, or restarting the PC after inserting the USB data card into the PC, can ensure that the USB data card is used when the PC's basic input output system (BIOS, Basic Input Output System) performs self-test. Has been inserted into the PC;

When the BIOS of the PC performs a self-test, the USB interface module of the USB data card enumerates the USB device for implementing the boot interaction with the computer; wherein the USB device can be a large number of storage storage devices, such as a USB flash drive, a CDROM, etc. It is a communication device, such as an Ethernet card, a modem, etc.; a USB interface module in a USB data card can be realized by implementing a USB protocol stack of a slave mode in the firmware of the USB data card; the USB interface module is in accordance with the USB protocol. After the USB data card is linked to the operating system of the PC, a corresponding response is made according to the USB standard command issued by the operating system of the PC, thereby enumerating the USB device conforming to the USB protocol; in this embodiment, the USB interface module needs to be first Enumerate a USB device of the Mass Storage type. Step 302, the BIOS of the PC searches for the GRUB boot program in the USB device;

Specifically, a large-capacity disk device such as a USB data card is regarded as one of the boot partitions by the BIOS of the PC, and the GRUB boot program is searched for in each boot partition in the order preset in the BIOS, therefore, the PC The BIOS can interact with the enumerated USB device to search for the GRUB bootloader in the USB device;

When the BIOS searches for the GRUB bootloader in the USB device, the BIOS issues a series of small computer system interface (SCSI, Small Computer System Interface) commands to the USB device to obtain the capacity of the USB device or read the boot area of the USB device. Wait; the USB interface module enumerating the USB data card of the USB device receives the SCSI command, and forwards the received SCSI command to the SCSI command processing module of the USB data card, and the SCSI command processing module receives the SCSI issued by the BIOS of the PC. The instruction sends the data block start number and the data block number information in the SCSI command to the SCSI-Flash interface conversion module of the USB data card; the SCSI-Flash interface conversion module is 512-byte units according to one data block. According to the data block start number and the number of data block information, calculate the starting address offset value of the data that needs to be read from the flash memory area, and then use the pre-stored GRUB boot program and the Flash memory of the embedded Windows operating system. The first address of the area, the first address of the data that the BIOS of the PC needs to read is calculated, and the first address of the data to be read is the GRUB boot program and the embedding The actual storage address of the Windows operating system, so that the SCSI-Flash interface conversion module converts the data block start number and the number of data blocks into the actual storage address of the GRUB boot program and the embedded Windows operating system in the flash memory area. The SCSI-Flash interface conversion module will calculate the actual storage address of the GRUB bootloader and the embedded Windows operating system in the flash memory area, and send it to the flash read/write module of the USB data card; the flash read/write module receives the actual storage according to the Address, use the API function to read GRUB from the flash memory area of the USB data card? I guide program with embedded Windows operating system, and will read out GRUB? | The program and the embedded Windows operating system only give the PC's BIOS. Step 303, the BIOS of the PC runs the GRUB boot program in the searched USB device; specifically, when the BIOS of the PC is based on the GRUB boot program reported by the Flash read/write module of the USB data card and the embedded Windows operating system, the BIOS of the PC Make sure that you have searched for the GRUB bootloader in the USB device and run the GRUB bootloader. The GRUB bootloader starts booting.

Step 304, the GRUB boot program boots the embedded Windows operating system in the USB data card to start running, the embedded Windows operating system runs the switching program to switch the USB data card to the normal working mode, and runs the pre-installed data card driver and UI software. ;

Specifically, after the GRUB boot program starts working, the GRUB boot program boots the embedded Windows operating system of the USB data card to start running; when the embedded Windows operating system starts running under the guidance of the GRUB boot program, first runs its own entry file setupldr. .bin, the entry file can read its own configuration file winnt.xpe to get its own running mode. In this embodiment, the embedded Windows operating system runs as a virtual disk (ramdisk), so the embedded Windows operation The system creates a virtual ramdisk in the memory of the USB data card, copies itself, saves the copied embedded Windows operating system to the virtual ramdisk, and the virtual ramdisk is virtualized into a hard disk partition, which is operated as an embedded Windows. The partition of the system exists;

The embedded Windows operating system starts running on the virtual ramdisk. After the embedded Windows operating system starts running, it can automatically run the memory switching program of the resident USB data card specified by the manufacturer; the switching program will be enumerated as a USB device. The USB data card switches to the normal working mode of the multi-port; the embedded Windows operating system can automatically run the pre-installed data card driver and run the UI software, so that the USB data card enters the normal working state and starts working with the UI software.

In order to provide users with more choices of use, in response to various situations in the user's use, the present invention also provides a method of combining the working mode of the conventional USB data card with the above method. The method can perform the corresponding processing according to the user's selection. Specifically, in the embodiment, when the USB data card is enumerated for the USB device, the enumerated USB device is two large CDROMs and virtual USB devices. The way in which the capacity devices coexist; wherein the CDROM is loaded with a virtual CD containing the UI software and the data card driver installation program, and the virtual USB device is loaded with the embedded Windows operating system in the Flash memory area of the USB data card. GRUB boot program; In this way, when the user wants to install the UI software and the data card driver in the traditional USB data card working mode, when using the USB data card in the operating system of the PC, it is only necessary to install the CDROM after inserting the USB data card. The data card driver and UI software, then wait for the data card to be automatically switched to the normal working mode and use it; if the user wants to use the USB data card in the way shown in Figure 3, only after inserting the USB data card, Restart the PC, or insert a USB data card before booting, and then boot the PC to the U during the BIOS self-test phase via the virtual USB device of the USB data card. In the embedded Windows operating system of the SB data card, wait for the driver to be automatically installed, and use the software after running. The seamless combination of these two modes can provide users with more choices of use, allowing users to cope with various problems encountered in use, not only improving the usability of USB data cards, but also greatly improving the user experience. .

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim

A wireless communication terminal, which has been inserted into a PC, wherein the wireless communication terminal comprises: a GRUB boot program module and an embedded operating system module;

The wireless communication terminal according to claim 1, wherein the wireless communication terminal further comprises: a USB interface module, a SCSI command processing module, a SCSI-Flash interface conversion module, and a flash read/write module;

The USB interface module is configured to enumerate the USB device when the BIOS of the PC performs a self-test; receive the SCSI command issued by the BIOS of the PC, and forward the SCSI command to the SCSI command processing module;

The wireless communication terminal according to claim 2, wherein the SCSI-Flash interface conversion module converts the data block start number and the data block number information into a GRUB boot program and an embedded operating system in the Flash memory. The actual storage address in the zone is:

The SCSI-Flash interface conversion module is 512-byte units according to 1 data block, and according to Data block start number and data block number information, calculate the starting address offset value of the data to be read from the flash memory area, and then use the pre-stored GRUB boot program and the first flash memory area of the embedded operating system. Address, which calculates the first address of the data that the PC's BIOS needs to read.

4. The wireless communication terminal according to claim 1, wherein the GRUB boot program module guides the embedded operating system module to start running as:

5. The wireless communication terminal according to claim 1, wherein the embedded operating system module runs a switching program to switch the wireless communication terminal to a normal working mode, and runs the pre-installed data card driver and/or UI. The software is:

After the embedded operating system module starts running on the basis of the virtual ramdisk, the memory switching program runs, switches the wireless communication terminal enumerated as the USB device to the normal working mode of the multi-port, and runs the pre-installed data card driver and/or Or UI software.

6. A method for self-starting a wireless communication terminal, the method comprising:

The BIOS of the PC runs the GRUB bootloader in the searched USB device;

The method according to claim 6, wherein before the BIOS of the PC runs the GRUB boot program in the searched USB device, the method further includes:

8. The method according to claim 7, wherein the BIOS of the PC is At the time of self-test, the USB device that has been plugged into the PC's wireless communication terminal enumerates:

9. The method according to claim 7, wherein the BIOS search of the PC is performed by the GRUB boot program in the USB device:

The SCSI-Flash interface conversion module converts the data block start number and the data block number information into the actual storage address of the GRUB boot program and the embedded operating system in the Flash memory area, and

10. The method according to claim 9, wherein the SCSI-Flash interface conversion module converts the data block start number and the data block number information into a GRUB boot program and an embedded operating system in the Flash memory area. The actual storage address is:

The method according to claim 6, wherein the BIOS of the PC runs the GRUB boot program in the searched USB device: After the BIOS of the PC is based on the GRUB boot program and the embedded operating system reported by the Flash read/write module of the wireless communication terminal, the BIOS of the PC determines that it searches for the GRUB boot program in the USB device, and runs the GRUB boot program, and the GRUB boots. The program starts to guide the work.

12. The method according to claim 6, wherein the GRUB boot program boots the embedded operating system in the wireless communication terminal inserted into the PC to start running as:

13. The method according to claim 6, wherein the embedded operating system running switching program switches the wireless communication terminal to a normal working mode, and runs the pre-installed data card driver and/or UI software as:

After the embedded operating system starts running on the virtual ramdisk, the memory switching program of the wireless communication terminal is operated, and the wireless communication terminal enumerated as the USB device is switched to the normal working mode of the multi-port; the pre-installed data card driver is run. And / or UI software, the wireless communication terminal enters the normal working state, and starts working with the UI software.