CN101311900A - Method for adjusting setting default value of basic input/output system and mainboard thereof - Google Patents

Abstract

The present invention discloses a method for adjusting a default value of a basic input/output system and a mainboard thereof. The adjustment method used by the mainboard includes providing an original default value of the setting and an adjustment table. The original default value of the setting is adjusted according to the adjustment table to obtain a customized default value of the setting and the customized default value is stored in a setting value memory.

Description

Basic input and output system setting default value adjustment method and its main board

technical field

The present invention relates to a computer, and in particular to a method for adjusting a default value of a computer's Basic Input Output System (BIOS) and a motherboard using the method.

Background technique

Every computer system has its own BIOS on the motherboard. When starting up, the central processing unit of the motherboard will load the BIOS and related set-up values, and then execute the booting process according to the set-up values. If the user wants to modify the BIOS setting value, for example, the user wants the priority of booting to be hard disk, CD-ROM, network device, or the priority of booting is CD-ROM, hard disk, Universal Serial Bus (UniversalSerial Bus, USB) device, then use Or you need to enter the BIOS to modify the setting value.

The BIOS setting values are generally stored in the CMOS memory. If the CMOS memory has not stored the set value, or the set value stored in the CMOS memory is invalid, then through the execution of the central processing unit, the BIOS will write the set-up default value recorded in the BIOS memory. The CMOS memory is used as the setting value of the BIOS. However, each client who entrusts the manufacture of the computer system may have different requirements for the default settings, and the computer system manufacturer needs to modify the default settings in the BIOS memory according to the needs of different customers. Therefore, computer system manufacturers need to prepare multiple BIOS firmware code versions to meet the needs of different customers. Therefore, the problem of managing a large number of BIOS firmware code versions arises. On the other hand, each BIOS firmware code version has to go through a verification program to confirm that the BIOS can run normally. However, a large number of BIOS firmware code versions derived to meet the needs of different customers must consume a lot of time, equipment and labor costs. Verify each BIOS firmware code version one by one, and it will also increase the product development time schedule.

Another traditional technology is to pre-write all the default values required by customers into the same BIOS firmware code version, so only this single version needs to be verified to save product development time. However, this conventional technology requires a larger storage space to store the BIOS firmware code, thus increasing the manufacturing cost of the product. Furthermore, if there is a new user requirement, another version of the BIOS firmware code will be added to meet the new user requirement. The continuous increment and release of version numbers may be troublesome for old users. Because the content of the BIOS has not changed, but the default value of the new customer has been added.

Contents of the invention

The purpose of the present invention is to propose a method for adjusting the default value of BIOS settings, which can adjust and set the default value for different customer needs under a single BIOS version.

Yet another object of the present invention is to provide a computer-readable storage medium capable of storing a computer program loaded into a computer system and causing the computer system to execute a method for adjusting default values of BIOS settings.

Another object of the present invention is to provide a motherboard capable of implementing a method for adjusting default values of BIOS settings.

Based on the above and other purposes, the present invention proposes a method for adjusting default values of BIOS settings. This tuning method includes providing original setting defaults and tuning tables. adjusting the original setting default value according to the adjustment table to obtain a customized setting default value; and storing the customized setting default value in a setting value memory.

In an embodiment of the present invention, the adjustment table includes a flag field, an overriding value field and an overriding address field. The flag field is used to indicate whether to overwrite part of the original value; the overwrite value field is used to record the overwrite value; and the overwrite address field is used to record the address to be overwritten in the setting value memory. In an embodiment of the present invention, the step of adjusting the default value of the original setting according to the adjustment table includes: if there is at least one override value in the adjustment table, then read the override value and the corresponding value from the adjustment table address and mask. Read the original setting default value from the BIOS or the set value memory according to the address. According to this mask, rotate the original setting default value and mask i bits to the right, where i is an integer greater than or equal to 0. The first intermediate value is obtained by ANDing the rotated original setting default with the mask. The second intermediate value is obtained by ANDing the first intermediate value and the override value. Then rotate the second intermediate value to the left by i bits to serve as a default value for customization. Store custom setting defaults back to the setting memory according to the address.

In one embodiment of the present invention, the computer-readable storage medium is a BIOS memory, which is responsible for storing the BIOS program, and allows the computer to execute the BIOS program and the adjustment method.

In an embodiment of the present invention, the motherboard includes: a BIOS memory for storing the BIOS. The set value memory is used to store a set of set values. and a central processing unit for executing multiple instructions of the BIOS. These instructions include: copying the original setting default value from the BIOS to the setting value storage, as the initial value of the set of setting values. And an instruction for reading the original setting default value from the setting value memory, and executing each step of the adjustment method.

The present invention adopts the structure that the adjustment table is built into the BIOS. Therefore, when modifying the customer's requirements, as long as the override value is adjusted in the adjustment table, it can be modified when the computer loads the BIOS. So as long as a good version of the BIOS is written and the method of the present invention is added, it is not necessary to spend a lot of manpower and resources to maintain the version of the BIOS to meet the user's needs.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail with accompanying drawings.

Description of drawings

FIG. 1 is a block diagram of a method for adjusting default values of BIOS settings according to a preferred embodiment of the present invention.

FIG. 2 is a flow chart of a method for adjusting default values of BIOS settings according to a preferred embodiment of the present invention.

FIG. 3 is a diagram of a motherboard device according to another embodiment of the present invention.

Detailed ways

The following will provide an embodiment of a method for adjusting a default value of a BIOS setting according to the present invention. Those with ordinary knowledge in this field can implement the following embodiments in the form of computer programs (such as firmware codes), and use computer-readable storage media (such as EEPROM, FLASH memory, etc.) to store this computer program to facilitate computer execution. , allowing the adjustment method of the BIOS setting default value to be completed electronically and automatically.

FIG. 2 is a flow chart of a method for adjusting a BIOS default value according to a preferred embodiment of the present invention, and FIG. 1 is a block diagram of a BIOS program execution interior and a setting value memory. In this embodiment, it is assumed that a customer wants his batch of computer systems to start with CD-ROM first, but the default value of the default BIOS version is to start with floppy drive.

Please refer to FIG. 1 and FIG. 2 at the same time. After the computer system is turned on (step S210), the central processing unit starts to execute the BIOS (step S212). The BIOS can be stored in the BIOS memory 110, wherein the BIOS memory 110 is a non-volatile memory (such as ROM, FLASH memory, etc.). During the execution of the BIOS, step S214 will first determine whether to load a "set-up default" (set-up default) into the set-up memory 112 (such as a CMOS memory). In actual operation, there will be many situations that need to load the “set default value” into the set value memory 112 . For example, when the computer system is turned on for the first time, the setting value memory 112 will not have any setting value at this time; therefore step S214 can check whether there is a setting value in the setting value memory 112 . In addition, step S214 may also check whether the user has issued an instruction to update the content of the setting value memory 112 to "set default value".

If it is determined in step S214 that the "set default value" does not need to be loaded into the set value memory 112, then proceed to step S234. Step S234 reads the current setting value from the setting value memory 112, so as to continue to execute other programs of the BIOS.

If it is determined in step S214 that the "setting default value" is to be loaded into the setting value memory 112, then proceed to step S216. In step S216 , the original setting default value 111 in the BIOS memory 110 is first loaded into the setting value memory 112 . In step S218, it is checked whether the adjustment table 114 has an override value. If there is no overwriting value recorded in the adjustment table 114, it means that the "setting default value" loaded into the setting value memory 112 from the original setting default value 111 does not need to be modified, so step S234 is performed to read from the setting value memory 112 The current setting value, in order to continue to execute other programs of the BIOS.

In this embodiment, it is assumed that the "default setting value" required by the customer who entrusts the manufacture of the computer system is different from the original setting default value 111 preset by the computer system manufacturer. For example, the "boot device" setting in the original setting default value 111 indicates booting with a floppy drive, but the "setting default value" desired by the customer is to boot with a CD-ROM. Therefore, the computer system manufacturer can record the related adjustment information of “setting the default value” required by the customer in the adjustment table 114 .

In this embodiment, the adjustment table 114 includes a flag field 116 , an override value field 118 and an override address field 120 . The flag field 116 is used to indicate whether to overwrite part of the original default value. The override value field 118 is used to record the override value. The overwrite address column 120 is used to record the address to be overwritten in the setting value memory 112 . Continuing the aforementioned assumption, since the setting value of "boot device" in "setting default value" needs to be adjusted, the overriding value and overriding address will be recorded in the overriding value field 118 and the overriding address field 120 respectively, and at the same time Set flag field 116 . Therefore, step S218 can determine whether the adjustment table 114 has an override value by checking the flag field 116 .

In this embodiment, the flag field 116 is 1, so step S220 is performed after step S218 is completed. Step S220 reads the override value and the override address from the override value field 118 and the override address field 120 . Here, it is assumed that the override value read from the override value field 118 is 02h, and the override address read from the override address field 120 is 20h. Since this embodiment only intends to adjust some bits of the address 20h in the setting value memory 112 , the step S220 reads the mask “11000111” from the overwriting address field 120 . The mask "11000111" indicates that the bits to be adjusted are the 3rd, 4th, and 5th bits, while the 0th, 1st, 2nd, 6th, and 7th bits will not be changed.

In this embodiment, it is assumed that the address 20h in the setting value memory 112 is an 8-bit data xxtttkkk (x, t, k are binary values). The 3rd, 4th, and 5th bits ttt of the address 20h in the setting value memory 112 represent the setting value of "startup device", while the 0th, 1st, and 2nd bits kkk and the 6th and 7th bits xx represent the setting values of other functions. FIG. 1 shows that the set value of the "startup device" recorded in the set value memory 112 is 001b (assuming that the "startup device" of the computer system is a floppy drive). For another example, if the set value of "booting device" recorded in the setting value memory 112 is 000b, 010b, 011b, 100b, it means that the "booting device" of the computer system is a network device, an optical drive, a hard disk, and a USB device respectively.

The next step S222 is to set the value “xx001kkk” from the address 20h in the setting value memory 112 according to the overwrite address (here, address 20h) read from the overwrite address field 120 . In step S224, according to the mask read from the overwrite address column 120, the set value from the address 20h in the set value memory 112 and the mask are rotated to the right by i bits, wherein i is greater than or equal to 0 integer. For example, if the mask is "11000111" and the setting value read from address 20h is "xx001kkk", then the mask "11000111" and the setting value "xx001kkk" are rotated 3 bits to the right synchronously so that the lowest bit of the mask Yuan is 0. After completing the right rotation, the mask becomes "11111000" and the set value becomes "kkkxx001".

In step S226, an AND operation is performed on the rotated set value "kkkxx001" and the mask "11111000" to obtain a first intermediate value "kkkxx000". Next, step S228 is performed to perform an OR operation on the first intermediate value "kkkxx000" and the override value 02h (ie, binary "00000010") from the override value column 118 to obtain a second intermediate value "kkkxx010".

Then proceed to step S230, and rotate the second intermediate value to the left by i bits, so as to serve as a default value for customization. Since the previous step S224 is to rotate to the right by 3 bits, the step S230 must correspondingly rotate to the left by 3 bits. Therefore, the result of rotating the second intermediate value "kkkxx010" by 3 bits to the left is "xx010kkk", and "xx010kkk" is used as the default value for customization.

Then proceed to step S232 , overwrite the customized setting default value “xx010kkk” at the address 20h of the setting value memory 112 according to the address. So far, the adjustment of the first set default value in the adjustment table 114 has been completed. If the flag field 116 of the adjustment table 114 indicates that there are other override values, the steps S218 - S232 can be repeated until all the override values of the adjustment table 114 have been written into the setting value memory 112 . Finally, step S234 is performed to read the adjusted setting value from the setting value memory 112, so as to continue to execute other programs of the BIOS.

In the above-mentioned embodiment, all the original setting default values 111 in the BIOS memory 110 are loaded into the setting value storage 112, and then read part of the setting values from the setting value storage 112 according to the adjustment table 114, and then adjust the read setting values Obtain the customized setting default value, and finally write the customized setting default value back to the setting value memory 112 . However, the inventors who apply the present invention can also change the content of the above embodiments according to their needs. For example, during the process of loading the original setting default value 111 in the BIOS memory 110 into the setting value memory 112 , the original setting default value can be adjusted synchronously. Taking Fig. 1 as an example, before the BIOS writes the byte "xx001kkk" of the original setting default value 111 into the address 20h in the setting value memory 112, the BIOS first adjusts the original setting default value "xx001kkk" to a customized value according to the adjustment table 114 The customized setting default value “xx010kkk” is then written into the address 20h in the setting value memory 112 with the customized setting default value “xx010kkk”.

FIG. 3 is another embodiment of the present invention, which is a motherboard device. The motherboard contains a central processing unit 312 , a BIOS memory 314 and a setting value memory 322 . The BIOS memory 314 stores the BIOS 316, and the BIOS has a built-in original setting default value 318 and an adjustment table 320 required for adjusting the default value. In this embodiment, the BIOS memory 314 is a flash memory, and the setting value memory is a CMOS memory. And the central processing unit 312 entity will link the BIOS memory 314 and the setting value memory 322, and will access the setting value in the setting value memory 322 and execute the BIOS program from the BIOS memory 314, so as to carry out the adjustment methods of the above-mentioned BIOS setting default value. step. The BIOS memory 314 will load the original setting default value 318 into the setting value memory 322 through the central processing unit 310 initially or under certain conditions, allowing the BIOS to access the setting value through the central processing unit 312 to execute the BIOS program.

To sum up, in a method for adjusting the default value of BIOS settings in the present invention, an adjustment table is provided to adjust the default value of the original setting, so the needs of the customer only need to be adjusted on the adjustment table to meet the needs of the customer. In this way, there is no need to spend additional resources to write a new version of the BIOS just to support the default value required by the customer.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention, and anyone with ordinary knowledge in the technical field may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be defined by the claims.

Claims (13)

1. a ROM-BIOS is provided with the method for adjustment of default value, comprising:

The one original default value that is provided with is provided;

One adjustment form is provided;

According to this original default value that is provided with of this adjustment form adjustment, to obtain a customized default value that is provided with; And

Default value should customizedly be set be stored in the value of a setting storer.

2. ROM-BIOS as claimed in claim 1 is provided with the method for adjustment of default value, it is characterized in that, this adjustment form comprises:

One flag field is in order to point out whether override this original partial content that default value is set;

One value of overriding field is in order to the record value of overriding; And

One overrides the address field, in order to write down the address of desiring to override in this value of setting storer.

3. ROM-BIOS as claimed in claim 1 is provided with the method for adjustment of default value, it is characterized in that, adjusts this original step that default value is set according to this adjustment form and comprises:

If this adjustment form has at least one value of overriding, then read this value of overriding and corresponding address and mask from this adjustment form;

According to this address from this ROM-BIOS maybe this value of setting storer read this original default value that is provided with;

According to this mask, to this original default value and i bit of this mask of being provided with of right rotation, wherein i is the integer more than or equal to 0;

Postrotational this originally is provided with default value and this mask carries out and computing, to obtain one first intermediate value;

This first intermediate value and this value of overriding are carried out exclusive disjunction, to obtain one second intermediate value;

With this second intermediate value to an anticlockwise i bit, with as this customized default value that is provided with.

4. ROM-BIOS as claimed in claim 3 is provided with the method for adjustment of default value, it is characterized in that, this customizedly is provided with the step that default value is stored in this value of setting storer and comprises:

According to this address default value should customizedly be set and be stored in this value of setting storer.

5. computer-readable storage medium, in order to store a computer program, this computer program is in order to be loaded in the computer system and to make this computer system carry out the method for claim 1.

6. mainboard comprises:

One CPU (central processing unit);

One value of setting storer is coupled to this CPU (central processing unit), in order to store one group of value of setting; And

One ROM-BIOS storer, be coupled to this CPU (central processing unit), in order to have an adjustment form and an original ROM-BIOS that default value is set in storing, wherein carry out this ROM-BIOS, make this ROM-BIOS read this original default value that is provided with by this CPU (central processing unit); According to this original default value that is provided with of this adjustment form adjustment, to obtain a customized default value that is provided with; And default value should customizedly be set be stored in this value of setting storer as this group value of setting.

7. mainboard as claimed in claim 6 is characterized in that, this CPU (central processing unit) is also carried out this ROM-BIOS and with this ROM-BIOS certainly default value should originally be set and be copied to this value of setting storer, with the initial value as this group value of setting; And this value of setting storer reads this original default value that is provided with certainly.

8. mainboard as claimed in claim 6 is characterized in that, this CPU (central processing unit) is also carried out this ROM-BIOS and read this original default value that is provided with this ROM-BIOS certainly.

9. mainboard as claimed in claim 6 is characterized in that, this adjustment form comprises:

One flag field is in order to point out whether override this original partial content that default value is set;

One value of overriding field is in order to the record value of overriding; And

One overrides the address field, in order to write down the address of desiring to override in this value of setting storer.

10. mainboard as claimed in claim 6 is characterized in that, if this adjustment form has at least one value of overriding, then this CPU (central processing unit) reads this value of overriding and corresponding address and mask from this adjustment form; According to this address from this ROM-BIOS maybe this value of setting storer read this original default value that is provided with; According to this mask, to this original default value and i bit of this mask of being provided with of right rotation, wherein i is the integer more than or equal to 0; Postrotational this originally is provided with default value and this mask carries out and computing, to obtain one first intermediate value; This first intermediate value and this value of overriding are carried out exclusive disjunction, to obtain one second intermediate value; And with this second intermediate value to an anticlockwise i bit, with as this customized default value that is provided with.

11. mainboard as claimed in claim 10 is characterized in that, this CPU (central processing unit) should customizedly be provided with default value according to this address and be stored in this value of setting storer.

12. mainboard as claimed in claim 6 is characterized in that, this value of setting storer is a CMOS memory.

13. mainboard as claimed in claim 6 is characterized in that, this ROM-BIOS storer is a nonvolatile memory.

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