CN100375959C - Equipment and method of system software capable of updating embedded type system automatically - Google Patents
Equipment and method of system software capable of updating embedded type system automatically Download PDFInfo
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- CN100375959C CN100375959C CNB2004101037194A CN200410103719A CN100375959C CN 100375959 C CN100375959 C CN 100375959C CN B2004101037194 A CNB2004101037194 A CN B2004101037194A CN 200410103719 A CN200410103719 A CN 200410103719A CN 100375959 C CN100375959 C CN 100375959C
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Abstract
The present invention relates to an embedded system and a method for automatically updating system software. The embedded system comprises a first storage device, a microprocessor and an on-line interface, wherein the first storage device is used for storing first system software and a starting and mapping file; the microprocessor is coupled with the first storage device, and is used for converting the first system software and the starting and mapping file into a system program code and a starting program code to control the starting operation of the embedded system; the on-line interface is coupled with the microprocessor, and is also coupled with an external data storage device through a data transmission medium. The external data storage device records second system software. The starting program code comprises an intermediate interface mechanism program, and the second system software can be read from the external data storage device through the on-line interface to update the first system software.
Description
Technical field
The present invention relates to a kind of device and method of update software, particularly relate to a kind of device and method of system software of automatically updated embedded system.
Background technology
See also Fig. 1, Fig. 1 is the synoptic diagram of known embedded system (embedded system) 100.Known embedded system 100 includes a microprocessor (microcontroller) 104, a plurality of memory storage 102,106 and is downloaded interface 108.As shown in Figure 1, microprocessor 104, memory storage 102,106 and download interface 108 are all by a bus (bus) 101 mutual Data transmission.Memory storage 102 is used for storing a system software Sys_1 and start image file (boot image) Boot_1, and generally speaking, memory storage 102 is a nonvolatile memory (a for example flash memory).Microprocessor 104 is used for respectively system software Sys_1 and start image file Boot_1 are converted to a system-program code (system code) Sys_Code and a boot-strap program code (boot code) Boot_Code, and carries out boot-strap program code Boot_Code in regular turn and operate with the start of controlling embedded system 100 with this system-program code Sys_Code.Memory storage 106 is used for keeping in above-mentioned system-program code Sys_Code and boot-strap program code Boot_Code, and generally speaking, memory storage 106 is a volatile memory (a for example random access memory).Download interface 108 is used for being coupled to a main frame (PC host) 130 via a data transmission medium 120, in addition, records another system software Sys_2 in the main frame 130.For known embedded system 100, download interface 108 can be serial line interface (Serial Port), testing action united organization (Joint Test Action Group, JTAG) interface or network interface, yet, the user is operational computations machine host 130 manually, to pass through data transmission medium 120, for example a connecting line (cable), an internal network (LAN or WLAN) or an external network (Internet) are uploaded system software Sys_2 embedded system 100 and are upgraded system software Sys_1 originally.
See also Fig. 2, Fig. 2 is the operational flowchart of the system software Sys_1 of known renewal embedded system 100.The flow process of known update system software Sys_1 comprises the following step:
Step 200: embedded system 100 is coupled to main frame 130 via download interface 108 and data transmission medium 120;
Step 210: a user is operational computations machine host 130 manually, and by download interface 108 the system software Sys_2 of main frame 130 storeies is uploaded in the memory storage 106 in the embedded system 100; And
Step 220: the system software Sys_2 that microprocessor 104 read storage devices 106 are noted down, and using system software Sys_2 comes the system software Sys_1 of script in the updated stored device 104.
As shown in the above description, known embedded system 100 is when upgrading its system software (for example operating system), it must rely on the manual operation of the main frame 130 of an outside, so when the quantity of the embedded system of upgrading when desire was very huge, a large amount of software upgrading times just can't be avoided.In addition, since known embedded system in update system software must the user operational computations machine host 130 manually, so the user not only needs to provide for oneself main frame 130, the minimum knowledge and the ability that also need possess the operational computations machine, therefore, be applied to the embedded system of consumption electronic products for demand, the user is operational, and to be inconvenient to be an important disadvantages.
Summary of the invention
The invention provides a kind of device and method of system software of automatically updated embedded system, to solve the above problems.
According to one embodiment of the invention, it has disclosed a kind of embedded system (embedded system) of automatically updated system software.This embedded system includes: one first memory storage is used for storing one first system software and a start image file (boot image); One microprocessor (microcontroller), be coupled to this first memory storage, be used for respectively this system software and this start image file being converted to a system-program code and a boot-strap program code (boot code), and be used for carrying out in regular turn this boot-strap program code and this system-program code to control the start operation of this embedded system; And an on-line interface, be coupled to this microprocessor, be used for being coupled to an external data storage device via a data transmission medium, this external data storage device records one second system software; Wherein this boot-strap program code includes intermediary interface mechanism program (update agent interface programming, UAIP), and this microprocessor is before carrying out this system-program code, it can carry out this intermediary interface mechanism program, upgrades this first system software to read this second system software via this on-line interface from this external data storage device.
According to one embodiment of the invention, it has disclosed a kind of method of system software of automatically updated embedded system, and this embedded system stores one first system software and a start image file.This method includes: respectively this system software and this start image file are converted to a system-program code and a boot-strap program code, wherein predetermined the execution in regular turn with the start of controlling this embedded system of this boot-strap program code and this system-program code operated, and this boot-strap program code includes intermediary interface mechanism program; Via a data transmission medium this embedded system is coupled to an external data storage device, this external data storage device records one second system software; And before carrying out this system-program code, carry out this intermediary interface mechanism program and read this second system software with this external data storage device certainly and upgrade this first system software.
The device and method of the system software of the automatically updated embedded system of the present invention, it is the system software of when loading boot-strap program code, judging and determine whether upgrading automatically embedded system via intermediary interface mechanism program according to judged result, it can significantly reduce the waste of the storer of embedded system own, that is, intermediary interface mechanism program is to be placed in the boot-strap program code to be performed, but not place application software to be performed, so can after finishing start, embedded system not take limited memory span; In addition, the device and method of the system software of the automatically updated embedded system of the present invention is owing to can reach the purpose of automatic update system software, so reduced the manpower and the cost that need expend when known built-in system software upgrades significantly, and improved the ease of use and the market competitiveness of embedded system via the operation burden that reduces the user.
Description of drawings
Fig. 1 is the synoptic diagram of known embedded system.
Fig. 2 is the operational flowchart of method of the system software of known renewal embedded system.
Fig. 3 is the synoptic diagram of the embedded system of first embodiment of the invention.
Fig. 4 is the synoptic diagram of the embedded system of second embodiment of the invention.
Fig. 5 upgrades the operational flowchart of method of the system software of embedded system automatically for the present invention.
The reference numeral explanation
100,300,500 embedded systems
101,301,501 buses
104,304,504 microprocessors
102,106,302, memory storage
306、 502、 506
108 download interface
120,310,512 data transmission mediums
130 main frames
320,520 external data storage devices
308,508 on-line interfaces
510 human-computer interface devices
Embodiment
See also Fig. 3, Fig. 3 is the synoptic diagram of the embedded system (embeddedsystem) 300 of first embodiment of the invention.Embedded system 300 includes that a microprocessor 304, a plurality of memory storage 302,306 and one are online to connect 308.As shown in Figure 3, microprocessor 304, a plurality of memory storage 302,306 and on-line interface 308 transmit data each other via a bus 301.In the present embodiment, embedded system 300 is used flash memory (flash memory) to implement memory storage 302 and is used dynamic RAM (DRAM) to implement memory storage 306, yet the present invention does not limit the kind of memory storage, and non-volatile (non-volatile) storer that memory storage 302 can also other kind is implemented; In like manner, volatibility (volatile) storer that memory storage 306 can also other kind is implemented.
Memory storage 302 is used for storing a system software Sys_1 and start image file (bootimage) Boot_1, and microprocessor 304 is used for respectively system software Sys_1 and start image file Boot_1 being converted to a system-program code (system code) Sys_Code and a boot-strap program code (boot code) Boot_Code, and be used for carrying out in regular turn boot-strap program code Boot_Code and system-program code Sys_Code start operation with control embedded system 300, please note, in present embodiment, include intermediary interface mechanism program (updateagent interface programming) UAIP, a burning program Flashing_Code and a network connections program Network_Code among the boot-strap program code Boot_Code.As shown in Figure 3, memory storage 306 is used for scratch system program code Sys_Code and boot-strap program code Boot_Code, reads boot-strap program code Boot_Code and system-program code Sys_Code carries out associative operation for microprocessor 304.On-line interface 308 is used for being coupled to an external data storage device 320 via a data transmission medium 310, and wherein external data storage device 320 records a system software Sys_2.Please note, in the present embodiment, on-line interface 308 is a network interface, be used for via a transmission control protocol and Internet Protocol (TransmissionControl Protocol/Internet Protocol, TCP/IP) carry out data transmission with external memory 320 (a for example server), in addition, data transmission medium 310 can be an internal network (local network or Intranet) or an external network (Internet), yet, above-mentioned only is preferred embodiment of the present invention, so in fact the present invention does not limit the kind of on-line interface and data transmission medium.
For clearly demonstrating the running of software upgrading flow process of the present invention, see also Fig. 4, Fig. 4 is the operational flowchart of embedded system 300 automatic update system software Sys_1 shown in Figure 3.The flow process of automatic update system software Sys_1 includes the following step:
Step 400: the power supply of opening embedded system 300;
Step 402: microprocessor 304 is converted to system-program code Sys_Code and boot-strap program code Boot_Code with system software Sys_1 and start image file Boot_1 respectively, and wherein boot-strap program code Boot_Code and system-program code Sys_Code system is in regular turn by microprocessor 304 performed start operations with control embedded system 300;
Step 404: before system-program code Sys_Code carried out, microprocessor 304 was carried out intermediary interface mechanism program UAIP;
Step 406: intermediary interface mechanism program UAIP starts network connections program Network_Code and comes to link embedded system 300 and external data storage device 320 via data transmission medium 310;
Step 408: the information of the software version of intermediary interface mechanism program UAIP reading system software Sys_2, and the software version of comparison system software Sys_1, Sys_2;
Step 410: is the software version of system software Sys_2 also newer than the software version of system software Sys_1? if then execution in step 412; Otherwise, execution in step 416;
Step 412: UAIP is from external data storage device 320 reading system software Sys_2 for intermediary interface mechanism program, and starts burning program Flashing_Code upgrades script with foundation system software Sys_2 system software Sys_1;
Step 414: boot-strap program code Boot_Code orders about embedded system 300 and starts shooting again, then, gets back to step 402; And
Step 416: microprocessor 304 executive system routine code Sys_Code.
The operation of embedded system 300 update system softwares is described in detail as follows.Behind the power supply of opening embedded system 300, at first, in the start image file Boot_1 meeting load store device 306 in the memory storage 302, then, the microprocessor 304 image file Boot_1 that just will start shooting is converted to boot-strap program code Boot_Code, so microprocessor 304 can be carried out the boot program that boot-strap program code Boot_Cod controls embedded system 300.Hardware unit at first initial (initialize) embedded system 300 of boot-strap program code Boot_Cod, then, during intermediary interface in carrying out boot-strap program code Boot_Code mechanism program UAIP, intermediary interface mechanism program UAIP promptly starts the network connections program Network_Code among the boot-strap program code Boot_Code, so that read the information of the system software Sys_2 in it from external data storage device 320, and need further to judge whether using system software Sys_2 to upgrade the system software Sys_1 of script in the embedded system 300 via on-line interface 308.In the present embodiment, mode from external data storage device 320 reading of data is: load networks links program Network_Code, it can set agreement (Dynamic Host ConfigurationProtocol by DynamicHost, DHCP) or fixed network address (Static IP) mode obtain the required IP address of embedded system 300, and network connections program Network_Code then just can start TFTP (Trivial File Transfer Protocol, TFTP) or Hypertext Transport Protocol (HyperText Transfer Protocol, HTTP) etc. the known network agreement come and external data storage device 320 online, at this, case of external data storage device 320 is a tftp server (TFTP Server), so, intermediary interface mechanism program UAIP just can read the version information of the system software Sys_2 that is arranged in the tftp server library via the TFTP agreement that network connections program Network_Code is supported, and the version information of system software Sys_1 in itself and the embedded system 300 compared, and two system software Sys_1 relatively, the detail operations of the version of Sys_2 and details are then waited until aftermentioned.
If the software version of system software Sys_2 is also newer than the software version of system software Sys_1, then microprocessor 304 performed intermediary interface mechanism program UAIP just can judge needs using system software Sys_2 to come update system software Sys_1.The flow process that system software Sys_1 is updated to system software Sys_2 is: at first, intermediary interface mechanism program UAIP start network connections program Network_Code with first download system software Sys_2 to memory storage 306, interface mechanism program UAIP restarts burning program Flashing_Code then, therefore, microprocessor 304 just can be carried out burning program Flashing_Code so that system software Sys_2 is burned onto memory storage 302, reach the purpose of update system software Sys_1, at last, boot-strap program code Boot_Code just orders about embedded system 300 and starts shooting again.
The data content of following illustrative system software Sys_1 and system software Sys_2 inside.In the present embodiment, system software Sys_1 includes a core image file (kernel image) and a file system image file (file system image), system software Sys_2 then has 3 kinds of different selections, selects (one) to be: only to include the core image file; Select (two) to be: only to include the file system image file; And select (three) to be: to include core image file and file system image file simultaneously.If system software Sys_2 only includes the core image file, after then system software Sys_1 is updated to system software Sys_2, then have only core image file originally to be updated, then remain untouched as for file system image file originally; In like manner, if system software Sys_2 only includes the file system image file, after then system software Sys_1 is updated to system software Sys_2, have only file system image file originally to be updated, core image file originally then is not updated.As from the foregoing, if system software Sys_2 includes core image file and file system image file simultaneously, then after system software Sys_1 was updated to system software Sys_2, core image file and file system image file originally all can be updated simultaneously.
When system software Sys_1 has been updated to system software Sys_2, and after embedded system 300 is started shooting again, then aforesaid operations can repeat, that is intermediary interface mechanism program UAIP need still can judge whether to upgrade automatically embedded system 300 present employed system software Sys_2 (at this moment, system software Sys_2 has replaced system software Sys_1 originally).If have a new system software Sys_3 (not shown) in the external data storage device 320 this moment, and when the software version of system software Sys_3 is new than the system software Sys_2 in the embedded system 300, the system software Sys_2 that then can upgrade once again in the embedded system 300 is system software Sys_3, otherwise, boot-strap program code Boot_Code is after finishing the start operation of itself setting, it just can direct-execution system program code Sys_Code and is not upgraded present system software Sys_2, and after system-program code Sys_Code successfully loaded, embedded system 300 was promptly finished the start flow process.How next the version of comparison system software Sys_1, Sys_2 be described.
In the present embodiment, intermediary interface mechanism program UAIP comes the software version of comparison system software Sys_1, Sys_2 according to time label (for example time of file foundation), that is, if the time that the time label of system software Sys_2 is noted down is later than the time that the time label of system software Sys_1 is noted down, then intermediary interface mechanism program UAIP just can be updated to system software Sys_2 with system software Sys_1 by burning program Fl ashing_Code.Please note, the present invention does not limit the service time label and comes the comparison software version, that is, the present invention also can make the software version of comparison system software Sys_1, Sys_2 otherwise, for instance, intermediary interface mechanism program also can be come the software version of comparison system software Sys_1, Sys_2 according to filename, all belongs to category of the present invention.In addition, please note, in the foregoing description, intermediary interface mechanism program UAIP, burning program Flashing_Code and network connections program Network_Code are respectively separately the program of (standa lone), yet burning program Flashing_Code and network connections program Network_Code also can be integrated in intermediary interface mechanism program UAIP, also belong to category of the present invention.
See also Fig. 5, Fig. 5 is the synoptic diagram of the embedded system 500 of second embodiment of the invention.Embedded system 500 includes a microprocessor 504, a plurality of memory storage 502,506, an on-line interface 508 and a human-computer interface device (human interface device, HID) 510.As shown in Figure 5, microprocessor 504, a plurality of memory storage 502,506, on-line interface 508 and a human-computer interface device 510 are via a bus 501 mutual Data transmission.Similarly, on-line interface 508 is coupled to an external data storage device 520 via a data transmission medium 512.Note that because embedded system shown in Figure 5 500 has identical functions and operation with assembly of the same name in the embedded system 300 shown in Figure 3, so related description does not repeat to give unnecessary details in this in addition.By Fig. 3 and Fig. 5 as can be known, the framework of embedded system 500 is similar to the framework of embedded system 300, and being embedded system 500, main difference also includes human-computer interface device 510, it is coupled to microprocessor 504, but be used for allowing the refresh routine of user's interventional systems software Sys_1 of embedded system 500, in other words, the user of embedded system 500 can come the performed intermediary interface mechanism program UAIP of control microprocessor 504 via human-computer interface device 510 input instructions, whether to determine update system software Sys_1.
For instance, when boot-strap program code Boot_Code carries out, it can be shown in a prompting message on the screen (not shown) of embedded system 500 via human-computer interface device 510, so whether the user of embedded system 500 assigns an instruction via human-computer interface device 510 and decides intermediary interface mechanism program UAIP will be performed; In addition, the user of embedded system 500 also can be " manually " via the execution pattern that human-computer interface device 510 is set intermediary interface mechanism program UAIP, therefore, when the execution pattern of intermediary interface mechanism program UAIP is " manually ", intermediary interface mechanism program UAIP can be shown on the screen (not shown) of embedded system 500 via the comparative result of human-computer interface device 510 with FileVersion, at last, the user of embedded system 500 just can manually assign an instruction via human-computer interface device 510 and determine whether carrying out follow-up system software update.In sum, embedded system 500 can provide the user selection of another kind of interactive update mechanism beyond automatic update mechanism, that is the embedded system 500 with human-computer interface device 510 can have higher use elasticity.
The device and method of the system software of the automatically updated embedded system of the present invention, when loading boot-strap program code, judge and determine whether upgrading automatically the system software of embedded system according to judged result via intermediary interface mechanism program, it can significantly reduce the waste of the storer of embedded system own, that is, intermediary interface mechanism program is placed in the boot-strap program code and is performed, but not place application software to be performed, so can after finishing start, embedded system not take limited memory span; In addition, the device and method of the system software of the automatically updated embedded system of the present invention is owing to can and reach the purpose of automatic update system software, so that reduce the manpower and the cost that need expend when known built-in system software upgrades significantly, and improve the ease of use and the market competitiveness of embedded system via the operation burden that reduces the user.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (28)
1. the embedded system of an automatically updated system software, it includes:
One first memory storage is used for storing one first system software and a start image file;
One microprocessor, be coupled to this first memory storage, be used for respectively this first system software and this start image file being converted to a system-program code and a boot-strap program code, and be used for carrying out in regular turn this boot-strap program code and this system-program code to control the start operation of this embedded system;
One second memory storage is coupled to this first memory storage, is used for keeping in this system-program code and this boot-strap program code; And
One on-line interface is coupled to this microprocessor, and also is coupled to an external data storage device via a data transmission medium, and this external data storage device records one second system software;
Wherein this boot-strap program code includes intermediary interface mechanism program, and this microprocessor is before carrying out this system-program code, it can carry out this intermediary interface mechanism program, upgrades this first system software to read this second system software via this on-line interface from this external data storage device.
2. embedded system as claimed in claim 1, wherein this microprocessor is carried out this intermediary interface mechanism program and is come the relatively software version of this first, second system software, and if the software version of this second system software is newer than the software version of this first system software, then this microprocessor is carried out this intermediary interface mechanism program and is used this first system software of this second system software update.
3. embedded system as claimed in claim 2, wherein this intermediary interface mechanism program is come the relatively software version of this first, second system software according to the time label of this first, second system software.
4. embedded system as claimed in claim 3, wherein if this time label of this first system software early than this time label of this second system software, then this microprocessor can be carried out this intermediary interface mechanism program and use this first system software of this second system software update.
5. embedded system as claimed in claim 2, wherein this boot-strap program code also includes a burning program, and if this intermediary interface mechanism program decision uses this second system software to upgrade this first system software, then this intermediary interface mechanism program is downloaded this second system software earlier to this second memory storage, and this microprocessor is carried out this burning program again and this second system software is burned onto this first memory storage is upgraded this first system software then.
6. embedded system as claimed in claim 5, wherein this first memory storage is a nonvolatile memory, and this second memory storage is a volatile memory.
7. embedded system as claimed in claim 6, wherein this nonvolatile memory is a flash memory, and this volatile memory is a dynamic RAM.
8. embedded system as claimed in claim 2, wherein this intermediary interface mechanism program is come the relatively software version of this first, second system software according to the filename of this first, second system software.
9. embedded system as claimed in claim 2 is wherein upgraded this first system software if this intermediary interface mechanism program is finished, and then this embedded system can be started shooting again.
10. embedded system as claimed in claim 2, wherein if the software version than this first system software is not new for the software version of this second system software, then this microprocessor is directly carried out this system-program code and is not upgraded this first system software after finishing this boot-strap program code of execution.
11. embedded system as claimed in claim 1, wherein this on-line interface is a network interface, is used for carrying out data transmission via a transmission control protocol and Internet Protocol and this external memory.
12. embedded system as claimed in claim 11, wherein this data transmission medium is an internal network or an external network.
13. embedded system as claimed in claim 1, wherein this first system software includes a core image file and a file system image file, and this second system software includes a core image file or a file system image file.
14. embedded system as claimed in claim 13, wherein this second system software is simultaneously in conjunction with a core image file and a file system image file.
15. embedded system as claimed in claim 1, it also includes a human-computer interface device, is coupled to this microprocessor, is used for controlling this microprocessor and whether carries out this intermediary interface mechanism program and upgrade this first system software.
16. the method for the system software of an automatically updated embedded system, this embedded system store one first system software and a start image file, this method includes:
(a) this first system software and this start image file that will be stored in respectively in one first memory storage is converted to a system-program code and a boot-strap program code that is temporary in one second memory storage, wherein this boot-strap program code and this system-program code are that predetermined the execution in regular turn with the start of controlling this embedded system operated, and this boot-strap program code includes intermediary interface mechanism program;
(b) via a data transmission medium this embedded system is coupled to an external data storage device, this external data storage device records one second system software; And
(c) before carrying out this system-program code, carry out this intermediary interface mechanism program and read this second system software with this external data storage device certainly and upgrade this first system software.
17. method as claimed in claim 16, wherein step (c) includes:
(c1) carry out this intermediary interface mechanism program and come the relatively software version of this first, second system software; And
(c2), then carry out this intermediary interface mechanism program and use this first system software of this second system software update if the software version of this second system software is newer than the software version of this first system software.
18. method as claimed in claim 17, wherein step (c1) includes: the time label according to this first, second system software comes the relatively software version of this first, second system software.
19. method as claimed in claim 18, wherein step (c2) includes:
If this time label of this first system software, is then carried out this intermediary interface mechanism program early than this time label of this second system software and is used this first system software of this second system software update.
20. method as claimed in claim 17, wherein this boot-strap program code also includes a burning program, and step (c2) includes:
Download this second system software, and then carry out this burning program and upgrade this first system software so that this second system software is burned onto this first memory storage.
21. method as claimed in claim 17, wherein step (c1) includes: the filename according to this first, second system software comes the relatively software version of this first, second system software.
22. method as claimed in claim 17, it also includes:
(c3) upgrade this first system software if this intermediary interface mechanism program is finished, then order about this embedded system and start shooting again.
23. method as claimed in claim 17, it also includes:
(c3) if the software version than this first system software is not new for the software version of this second system software, then in finish carry out this boot-strap program code after, directly carry out this system-program code and do not upgrade this first system software.
24. method as claimed in claim 16, wherein step (b) includes: carry out data transmission via a transmission control protocol and Internet Protocol and this external memory.
25. method as claimed in claim 24, wherein this data transmission medium is an internal network or an external network.
26. method as claimed in claim 16, wherein this first system software includes a core image file and a file system image file, and this second system software includes a core image file or a file system image file.
27. method as claimed in claim 26, wherein this second system software is simultaneously in conjunction with a core image file and a file system image file.
28. method as claimed in claim 16, wherein step (c) includes:
One human-computer interface device is provided, and uses this human-computer interface device to control this microprocessor and whether carry out this intermediary interface mechanism program and upgrade this first system software.
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| CN101441572B (en) * | 2007-11-21 | 2012-04-11 | 上海摩波彼克半导体有限公司 | Method for implementing operation code loading in DSP chip |
| CN101739270B (en) * | 2008-11-05 | 2013-04-03 | 英华达（上海）科技有限公司 | Electronic device and system update method thereof |
| CN101739268A (en) * | 2008-11-26 | 2010-06-16 | 英业达股份有限公司 | Execution method of embedded software |
| US8392895B2 (en) * | 2009-01-13 | 2013-03-05 | Mediatek Inc. | Firmware extension method and firmware builder |
| CN101807155B (en) * | 2010-03-03 | 2013-01-09 | 京信通信系统（中国）有限公司 | Embedded software on-line updating method |
| CN102298507A (en) * | 2010-06-24 | 2011-12-28 | 宇瞻科技股份有限公司 | Storage device with virtual CD device |
| CN102346675A (en) * | 2010-08-03 | 2012-02-08 | 环达电脑(上海)有限公司 | System and method for updating drive program of embedded system |
| CN103838585A (en) * | 2012-11-20 | 2014-06-04 | 广州市暨华医疗器械有限公司 | Method for achieving automatic recording of ARM9 embedded system based on SD card |
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| CN1466047A (en) * | 2002-06-28 | 2004-01-07 | 联想(北京)有限公司 | Semiopen automatic upgrading method for embedded type operation system |
-
2004
- 2004-12-28 CN CNB2004101037194A patent/CN100375959C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1346085A (en) * | 2000-09-26 | 2002-04-24 | 民生科技股份有限公司 | Method for updating program code used for embedded microcontrol unit |
| CN1362667A (en) * | 2001-01-04 | 2002-08-07 | 财团法人资讯工业策进会 | Embedded structure with software capable of being updated fast and its software updating method |
| WO2003104976A2 (en) * | 2002-06-06 | 2003-12-18 | Koninklijke Philips Electronics N.V. | Method for writing data to a non-volatile memory embedded in an integrated circuit and corresponding circuit |
| CN1464386A (en) * | 2002-06-25 | 2003-12-31 | 联想(北京)有限公司 | Method for realizing flush type system firmware program online updating |
| CN1466047A (en) * | 2002-06-28 | 2004-01-07 | 联想(北京)有限公司 | Semiopen automatic upgrading method for embedded type operation system |
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