CN1755626A - Bootloader updating method for portable personal digital assistant - Google Patents
Bootloader updating method for portable personal digital assistant Download PDFInfo
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- CN1755626A CN1755626A CN 200410066690 CN200410066690A CN1755626A CN 1755626 A CN1755626 A CN 1755626A CN 200410066690 CN200410066690 CN 200410066690 CN 200410066690 A CN200410066690 A CN 200410066690A CN 1755626 A CN1755626 A CN 1755626A
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- boot loader
- personal digital
- digital assistant
- portable personal
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Abstract
The invention relates to a guiding load program update method of portable personal digital assistant, which comprises the following steps: a) transmitting and storing the guiding load program update applied software and the guiding load program information to the portable personal digital assistant; b) comparing the guiding load program information stored on the random storage with the guiding load program information stored on the ROM of personal digital assistant; c) replicating the guiding load program information to the prescribed area of the random storage; d) giving the system control power to the guiding load program of ROM; e) running the program in the ROM after replicating the guiding load program information to the prescribed area of the random storage; f) using the guiding load program information stored on the step c) to update the guiding load program of ROM area.
Description
[technical field]
The invention relates to the invention of Boot loader (Boot loader) update method of portable personal digital assistant, in more detail, be about stablizing the upgrading Boot loader, ensure convenience and stability in the portable personal digital assistant user use, only the information of upgrading and obtaining authenticating can ensure the invention of the method for portable personal digital assistant stability.
[background technology]
The portable personal digital assistant that all the time is used to enterprise's commercial object is popularized in the general user now gradually.It not only can be applied to individual schedule management, but also has electronic notebook, digital music, multiple function such as game machine.
But, in the use of portable personal digital assistant, many problems that should solve have appearred.Portable personal digital assistant is different from general computing machine, its with operating system and basic application software prior loading in ROM (read-only memory).Used mask read-only memory in the past, once after the record, just can not revise, use flash ROM now, and also can upgrade in the future.
What Fig. 1 showed is the ROM (read-only memory) of conventional portable personal digital assistant and the synoptic diagram of random access memory structure.
In the above-described embodiments, ROM (read-only memory) comprises following a few part: Boot loader zone 101; Operating system and application area 102; System intrinsic information zone 103.Random access memory comprises: Boot loader random access memory zone 104; System realm and storage area 105; The random access memory zone 106 of preserving.
As shown in Figure 1, if portable personal digital assistant is plugged in, Boot loader 101 operations.Boot loader 101 has the portable personal digital assistant hardware initialization, the effect of controlling by operating system 102.Control by operating system 102, start, operation according to general sequence.
Intrinsic information record in addition on ROM (read-only memory) on hardware and the portable personal digital assistant.Random access memory not only has the function of the common random access memory that drives the portable personal digital assistant program, simultaneously, also is equivalent to hard disc of computer, has the function that file is finished in storage.The random access memory zone can be divided into following a few major types: the random access memory zone 101 of using Boot loader; Use the random access memory zone 102 of operating system and application software; Guarantee the random access memory zone 103 of other purpose etc.
In order to revise the wrong of portable personal digital assistant software and to improve its performance, for appearing on the market or the ROM (read-only memory) and the Boot loader 101 of the portable personal digital assistant that the consumer is using, be starved of a kind of method that can upgrade and back up.Especially, because Boot loader 101 has the operation system, upgrade vital role such as ROM (read-only memory), the user is starved of can safety, easily it is carried out method for updating.
[summary of the invention]
The present invention is in order to address the above problem, and its objective is to the user provides a kind of method that can upgrade the Boot loader of portable personal digital assistant safely.
Another object of the present invention provides the specific products of a kind of upgrading Boot loader information, the method for particular version.
To achieve these goals, the update method of the Boot loader of portable personal digital assistant of the present invention comprises following step: a) renewal application software and the Boot loader information with Boot loader transmits to portable personal digital assistant, and with the step of above-mentioned information stores in the portable personal digital assistant random access memory; B) step that the Boot loader of storing now in the Boot loader information that will store in random access memory and the ROM (read-only memory) in portable personal digital assistant compares; C) above-mentioned Boot loader information is carried out copy step again to the zone of random access memory regulation; D) control of system is given to the step of the Boot loader in the ROM (read-only memory); E) with above-mentioned Boot loader behind the random access memory region duplication, the step of in random access memory, moving; F) Boot loader with the ROM (read-only memory) zone utilizes above-mentioned steps c) in the storage Boot loader information carry out updating steps.
The present invention preferably also comprises following process: in step b), if the version of the Boot loader information of storing in above-mentioned random access memory finishes the process of upgrading than the version of the Boot loader of storage is low or identical now in the ROM (read-only memory) in portable personal digital assistant.
The present invention preferably also comprises following process: in step b), if portable personal digital assistant is not supported in the Boot loader information of storing in the above-mentioned random access memory now, finish the process of upgrading.
In step d), the method for the control of system being given to the Boot loader in the ROM (read-only memory) resets portable personal digital assistant exactly, initialization.
According to above-mentioned argumentation, the present invention is by providing a kind of method that can the safety upgrade Boot loader, reach the convenience that ensures in the portable personal digital assistant user use and the effect of security.
And only the information of upgrading and obtaining authenticating reaches the effect that ensures the portable personal digital assistant security.
[description of drawings]
What Fig. 1 showed is the ROM (read-only memory) of conventional portable personal digital assistant and the synoptic diagram of random access memory structure.
Fig. 2 shows is the process flow diagram of Boot loader update method of the personal digital assistant of one embodiment of the present of invention.
What Fig. 3 a showed to Fig. 3 f is the ROM (read-only memory) of each step of the above-mentioned Fig. 2 of explanation and the synoptic diagram of random access memory structure.
[embodiment]
Below, with reference to the accompanying drawings, embodiments of the invention are described in detail.
What Fig. 2 showed is the process flow diagram of the portable personal digital assistant Boot loader update method of one embodiment of the present of invention.Fig. 3 a is the concept map of above-mentioned each step of Fig. 2 of explanation to Fig. 3 f demonstration, and the foregoing description has roughly shown the process that Boot loader 101 is upgraded to redaction.
With reference to Fig. 2 and Fig. 3, the update method of the Boot loader 101 of portable personal digital assistant is described as follows.
What step 201 showed is to upgrade the process that application software 201 and Boot loader information 202 are duplicated to random access memory.
Shown in Fig. 3 a, Boot loader renewal application software 201 and Boot loader information 202 are in fictitious host computer computing machine (unmarked among the figure), transmit to portable personal digital assistant, the Boot loader of above-mentioned transmission is upgraded in the regulation zone of application software 201 and the random access memory of Boot loader information 202 in portable personal digital assistant and duplicate.The renewal application software 201 of above-mentioned Boot loader and Boot loader information 202 preferably are stored in system realm and the storage area 105.
In numerous multiple portable personal terminal machines, the present invention is best suited for PDA.
From step 202 to step 205 are processes of comparison Boot loader information 202 and present Boot loader 101.
Will be in above-mentioned steps 201, the Boot loader information 202 of storing in the storage area of random access memory compares with the Boot loader 101 of present portable personal digital assistant stored.
Shown in Fig. 3 b, Boot loader upgrades the version of 201 pairs of Boot loader information 202 of application software and the version information of relevant information and present portable personal digital assistant compares, after judging whether to continue operation, Boot loader information 202 is duplicated in the specific region in random access memory.Preferably above-mentioned Boot loader information 202 is replicated in the random access memory zone 106 of random access memory preservation.
According to above-mentioned steps, 202 of Boot loader information are to specific products, and particular version is upgraded.
Step 206 is system's control to be given to the process of Boot loader 101.
Shown in Fig. 3 c, in above-mentioned steps 205, Boot loader information 202 is duplicated to the random access memory zone 106 of preserving, if reset portable personal digital assistant, system's control shifts to present portable personal digital assistant.
Preferably restart portable personal digital assistant behind the above-mentioned reseting procedure.
Step 207 is that Boot loader 101 is copied to Boot loader random access memory zone 104, the process of operation.
Shown in Fig. 3 d, Boot loader 101 copied to Boot loader random access memory zone 104 after, in random access memory, move.
Shown in Fig. 3 e, the Boot loader 104 that moves in the random access memory zone utilizes Boot loader information 202 to upgrade the Boot loader 101 of ROM (read-only memory).Finish the renewal of Boot loader 101, after resetting, shown in Fig. 3 f, Boot loader 101 operations of renewal.
By above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content on the instructions, must determine its technical scope according to interest field.
Claims (5)
1, the update method of the Boot loader of portable personal digital assistant comprises:
A) renewal application software and the Boot loader information with Boot loader transmits to portable personal digital assistant, and with above-mentioned information stores in the portable personal digital assistant random access memory;
B) Boot loader of storing now in the Boot loader information that will store in random access memory and the ROM (read-only memory) in portable personal digital assistant compares;
C) above-mentioned Boot loader information is duplicated to the zone of random access memory regulation again;
D) control of system is given to the step of the Boot loader in the ROM (read-only memory);
E) with above-mentioned Boot loader behind the random access memory region duplication, in random access memory, move;
F) Boot loader with the ROM (read-only memory) zone utilizes above-mentioned steps c) in the storage Boot loader information upgrade.
2, the Boot loader update method of portable personal digital assistant as claimed in claim 1 is characterized in that:
In step b), when the version of the Boot loader of storage is identical now in the version of the Boot loader information of storing and the ROM (read-only memory) in portable personal digital assistant, finish the process of upgrading in above-mentioned random access memory.
3, the Boot loader update method of portable personal digital assistant as claimed in claim 1 is characterized in that:
In step b), when the version of the Boot loader information of in above-mentioned random access memory, storing when the version of the Boot loader of storage is low now in the ROM (read-only memory) in portable personal digital assistant, finish the process of upgrading.
4, the Boot loader update method of portable personal digital assistant as claimed in claim 1 is characterized in that:
In step b),, finish the process of upgrading if portable personal digital assistant is not supported in the Boot loader information of storing in the above-mentioned random access memory now.
5, the Boot loader update method of portable personal digital assistant as claimed in claim 1 is characterized in that:
In step d), the method for the control of system being given to the Boot loader in the ROM (read-only memory) resets portable personal digital assistant exactly, initialization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066690 CN1755626A (en) | 2004-09-27 | 2004-09-27 | Bootloader updating method for portable personal digital assistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066690 CN1755626A (en) | 2004-09-27 | 2004-09-27 | Bootloader updating method for portable personal digital assistant |
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| Publication Number | Publication Date |
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| CN1755626A true CN1755626A (en) | 2006-04-05 |
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| CN 200410066690 Pending CN1755626A (en) | 2004-09-27 | 2004-09-27 | Bootloader updating method for portable personal digital assistant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299849B (en) * | 2008-04-25 | 2010-05-12 | 中兴通讯股份有限公司 | WiMAX terminal and starting method thereof |
| CN101425336B (en) * | 2007-11-01 | 2011-05-25 | 英华达（上海）科技有限公司 | Recording and comparing method |
| CN102955707A (en) * | 2011-08-31 | 2013-03-06 | 福建三元达软件有限公司 | Method for mutual loading of drive program and application program based on foreground-background system |
| CN105117255A (en) * | 2015-08-28 | 2015-12-02 | 青岛中星微电子有限公司 | Boot method and apparatus for BootLoader program |
| CN105204896A (en) * | 2015-09-08 | 2015-12-30 | 江苏绿扬电子仪器集团有限公司 | BootLoader design method of digital storage oscilloscope |
-
2004
- 2004-09-27 CN CN 200410066690 patent/CN1755626A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425336B (en) * | 2007-11-01 | 2011-05-25 | 英华达（上海）科技有限公司 | Recording and comparing method |
| CN101299849B (en) * | 2008-04-25 | 2010-05-12 | 中兴通讯股份有限公司 | WiMAX terminal and starting method thereof |
| CN102955707A (en) * | 2011-08-31 | 2013-03-06 | 福建三元达软件有限公司 | Method for mutual loading of drive program and application program based on foreground-background system |
| CN105117255A (en) * | 2015-08-28 | 2015-12-02 | 青岛中星微电子有限公司 | Boot method and apparatus for BootLoader program |
| CN105204896A (en) * | 2015-09-08 | 2015-12-30 | 江苏绿扬电子仪器集团有限公司 | BootLoader design method of digital storage oscilloscope |
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