A method for solving non-symmetric digital user line Modem software loss
A digital subscriber line and modem technology, applied in the field of communication, can solve the problems of unavoidable ADSLMODEM software loss, failure to work normally, software loss, etc., and achieve the effect of reducing the loss probability of startup software, reducing the size of startup programs, and protecting against loss
Active Publication Date: 2010-06-09
ZTE CORP
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Problems solved by technology
Since the user does not know about the operation of saving the configuration, it is completely done automatically by the ADSL MODEM. If the user cuts off the power at this time, the possibility of software loss is very high, especially in some units of the flash storage area. In the case of larger data size and slower read / write speed, the probability of software loss is very high. Even if some manufacturers choose a flash storage area with smaller erase / write sectors and faster read / write speed, it can only be Reduce the probability of such failures, but cannot avoid the occurrence of ADSL MODEM software loss
[0004] When the ADSL MODEM has a software loss failure, it cannot work normally, and the ADSL MODEM often appears to be in a state that cannot be managed at all
At this time, if you want to restore the ADSL MODEM to normal, you must re-update the software. What's worse, once this happens, you often cannot perform normal upgrade operations on the ADSL MODEM. Generally, you need to open the shell of the device and use a special upgrade tool. Forcibly upgrade the ADSL MODEM equipment through the parallel port or serial port, which brings great inconvenience to the normal use and maintenance of the equipment
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[0027] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.
[0028] In the current practical application, although the software framework of ADSL MODEM also distinguishes the boot program and general application program, it does not strictly define this, especially the Boot program, application program, and general data of the software. There is a one-to-one correspondence with the specific sectors (Sectors) of the flash used, so it is often necessary to read and write several Sectors at the same time when reading and writing general data operations, and the Sectors occupied by some data areas may also store In this way, when the ADSL MODEM reads and writes normally, if the ADSL MODEM is powered off, it will cause the ADSL MODEM to fail to start normally, and it can only be used again after a forced upgrade.
[0029] figure 1 Be the software structure of ADSL MODE...
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The invention discloses a method for preventing the loss of ADSL MODEM software. The method comprises the steps of: dividing a flash memory in the MODEM into a startup sector, an application sector, and a general data sector, optimizing the software structure of an MODEM upgrade pack to be upgraded and then writing the optimized date into the three sectors; setting the startup sector and the application sector into read-write status for software upgrade when the equipment needs complete upgrade and resuming the default read-only status thereof when the upgrade is over;, setting the applicationsector into the read-write status when the equipment needs the regular upgrade, and resuming to be the default read-only status after the application upgrade is complete; as for the regular data sector, the read-write property is set to readable and writable to ensure normal reading and writing operations of the equipment. The invention reduces the possibility of losing the MODEM startup softwareand enhances the reliability of the equipment.
Description
technical field [0001] The invention relates to modem (MODEM) technology in the communication field, in particular to a method for solving the loss of Asymmetric Digital Subscriber Line (ADSL) MODEM software. Background technique [0002] At present, with the rapid development of Internet broadband access, ADSL users have increased dramatically, and the number of ADSL MODEMs used is also increasing. Because the user's ADSL MODEM is widely used, it is not conducive to centralized management. Although the remote network management technology of ADSL MODEM is gradually being paid attention to by telecom operators, the remote network management technology is not mature enough, especially when the ADSL MODEM fails, etc. , the current network management technology can't solve it, and among these failures, the loss of ADSL MODEM software is relatively common in actual use. [0003] The loss of ADSL MODEM software is mostly caused by a sudden power failure when the flash memory (fl...
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IPC IPC(8): H04L12/24H04L12/28G06F9/445
Inventor 任立忠
Owner ZTE CORP