Electronic device and method for on-line updating firmware
An electronic device and firmware technology, applied in the field of online firmware update of electronic devices, can solve the problems of long operation time, occupying storage space, unable to upgrade online, etc., and achieve the effect of saving storage space, reducing volume and cost
Inactive Publication Date: 2008-09-24
VIA TECH INC
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Problems solved by technology
[0005] In the online update method of the prior art, if there is no backup firmware, the electronic device cannot be used after the update fails. However, if an online update method for backup firmware is provided, the firmware needs to be backed up before the online update. Long operating time; at the same time, it is necessary to increase the hardware circuit to provide recovery backup firmware when the online update fails, resulting in an increase in the cost and volume of the electronic device; in addition, the backup firmware needs to occupy the same storage space as the original firmware, and When the storage space is not enough to back up the firmware, it will also lead to the problem that the online upgrade cannot be performed
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[0023] In order to make the objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, together with the appendix Figure 2 to Figure 3 Make detailed instructions.
[0024] Refer below figure 2 , figure 2 It is a schematic diagram of a memory structure of an electronic device according to an embodiment of the present invention. The memory 200 is logically divided into a device standard area 210 , an update function area 220 and an application program area 230 . Logically divided, that is, the firmware code in memory is divided into three modules at the time of writing.
[0025] The code in the equipment standard area 210 realizes the basic function of the electronic device: realizes standard request processing, for example, when the electronic device is connected to the host (for example, a computer), the code in the equipment standard area 210 will process the communication request sent by the hos...
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The invention provides an electronic device and a method for online firmware updating thereof. The electronic device is provided with a memorizer and the memorizer includes at least an updating function area, an application program area and an equipment standard area. The method powers the electronic device and executes the code of the equipment standard area to judge whether the code of the application program area needs updating or not. If the code of the application program area needs updating, the code of the updating function area is operated to update the code of the application program area. If the code of the application program area needs no updating, a normal module is entered to operate the code of the application program area; wherein, whether the code of the application program area needs updating or not is determined by judging whether an updating sign is valid or not. The electronic device and the method of online firmware updating provided by the invention save the storage space and reduce the equipment volume and cost.
Description
technical field [0001] The present invention relates to a method for online firmware update of an electronic device, and more particularly, to a method and device for online firmware update that saves storage space and can prevent the device from being unable to start due to unexpected conditions during update. Background technique [0002] The firmware of an electronic device, also called firmware, is simply a kind of software used to control the hardware in an electronic device. Devices that include a processor or a single chip, such as a computer, include firmware. Firmware undertakes the most basic and bottom-level work of electronic systems, such as firmware in electronic music players, using flash memory Flash as a carrier, coexisting with other hardware circuits of electronic music players, to achieve communication with computers and application functions of the player , such as audio playback and recording. [0003] With the rapid development of technology, the upd...
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Inventor 姜鹏王健
Owner VIA TECH INC