A reading and writing method of serial number and projectname based on network card nvm

A method of reading and writing, serial number technology, applied in the direction of instruments, version control, computing, etc., can solve the problems of serial number and ProjectName coverage, resource and cost waste, etc., to achieve the effect of reducing maintenance consumption, low cost, and conducive to commercial promotion

Active Publication Date: 2021-07-20
CHENGDU VANTRON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The length of the serial number and ProjectName is very small, about tens of bytes in length, storing them in a separate EEPROM chip will cause a waste of resources and costs, and if they are stored in BIOSFlash, it is easy to cause serial number during the BIOS update process. No. and ProjectName are overridden

Method used

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  • A reading and writing method of serial number and projectname based on network card nvm
  • A reading and writing method of serial number and projectname based on network card nvm
  • A reading and writing method of serial number and projectname based on network card nvm

Examples

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Embodiment 1

[0034] A flow chart of the serial number and ProjectName reading and writing method based on the NVM of the network card is as follows figure 1 shown, including the following steps:

[0035] The first step is to use the application layer serial number / ProjectName writing tool to write the serial number and ProjectName of the computer motherboard into the NVM address of the network card.

[0036] The NVM of the network card is used to configure the network card, but not all the storage space is used, and many of them are reserved for use. Therefore, without affecting the function of the network card, part of the space can be used to store the IMEI and ProjectName. Through verification and query, the NVM address 0x70~0x7A of the network card can be used as the storage address of the serial number, and 0x80~0x9F can be used as the storage address of the ProjectName. Because the addresses in these two ranges are not occupied by the network card, writing data to them will not aff...

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Abstract

The invention discloses a method for reading and writing serial number and ProjectName based on network card NVM in the field of computer design. The method steps include a, using the application layer serial number / ProjectName writing tool to write the serial number and ProjectName of the computer motherboard into the NVM address of the network card; b, during the power-on self-check process, the BIOS obtains the serial number and the ProjectName from the network card NVM address ProjectName, and merge the serial number and ProjectName into the SMBIOS table; c, read the SMBIOS table through the DMI interface, and obtain the serial number and ProjectName. Because the present invention adopts the serial number / ProjectName writing tool to store the serial number and ProjectName in the network card, it does not need an additional EEPROM chip to store the serial number and ProjectName, so that the cost of the motherboard is lower, and the serial number in the BIOS update process does not appear and the problem with ProjectName being overwritten.

Description

technical field [0001] The invention relates to the technical field related to electrified railways, in particular to a method for reading and writing serial numbers and ProjectNames based on network card NVM. Background technique [0002] The serial number and ProjectName are widely used by motherboard manufacturers. The serial number is used to uniquely identify the device according to the manufacturer's own format. The ProjectName can be customized according to the needs to distinguish the manufacturer. In the prior art, the serial number and the ProjectName are usually stored separately in the EEPROM chip or in the BIOSFlash. The length of the serial number and ProjectName is very small, about tens of bytes in length, storing them in a separate EEPROM chip will cause a waste of resources and costs, and if they are stored in BIOSFlash, it is easy to cause serial number during the BIOS update process. No. and ProjectName are overridden. Contents of the invention [000...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G06F8/654G06F8/71H04L29/12
CPCG06F8/654G06F8/71H04L2101/365
Inventor魏波付洪纲
OwnerCHENGDU VANTRON TECH CO LTD