CN101295254A - Computer system and method for switching basic input and output system by using power button - Google Patents

Abstract

The invention discloses a computer system and a method for switching a basic input and output system by using a power button. The power button is electrically coupled to the computer system, and the detection device is electrically coupled to the power button and is used for outputting a switching signal and a starting signal after the power button is continuously pressed for a switching time value, wherein the starting signal commands the computer system to carry out a starting program. The switching circuit is electrically coupled to the detection device and switches the first BIOS data used by the boot program in the computer system to the second BIOS data according to the switching signal. By adopting the invention, when the backup judgment program of the computer system is damaged or all the data of the basic input and output system disappear or are disordered, the basic input and output system can be switched only by the power button to complete the rescue action of the system.

Description

Computer system and method for switching basic input and output systems by using power button

technical field

The invention relates to a computer system and method capable of switching basic input and output systems (BIOS), in particular to a computer system and method capable of switching BIOS by using a power button.

Background technique

The basic input output system (Basic lnput Output System, BIOS) is used in the computer to record the communication mode between each chip on the motherboard and the control chip, as well as other related settings about the boot process, so that the user can complete the boot operation and into the operating system. Therefore, BIOS is an indispensable part of the computer system. Therefore, if the BIOS data is damaged due to operational factors such as virus infection or improper update, it will seriously affect the related booting procedures of the computer system.

The method that solves the above-mentioned problem in the prior art is in the basic input output system read-only memory (BIOS ROM) of storing BIOS data, its memory area for storing data is divided into two parts, and a part is generally used as system booting, and another part It is used as a backup, and then the action of switching memory areas is set by software. However, this method usually requires the data in the boot area in the BIOS ROM to be complete before the system can be started and switched. If all the data in the boot area is damaged, the purpose of rescue cannot be achieved.

In addition, there are other solutions on the market, such as jumping a jumper on the motherboard, so that the BIOS can accept the request for updating data. However, this method still requires the user to obtain the complete BIOS update content by himself, so it is very troublesome and complicated for the user.

Therefore, there is a need for a simpler BIOS switching method, so that the user can easily solve the problem that the computer cannot be turned on normally due to the damage of the BIOS data, and complete the purpose of BIOS rescue.

Contents of the invention

The technical problem to be solved by the present invention is to provide a computer system that uses a power button to switch the BIOS, so as to simply solve the problem that the BIOS of the computer is damaged and cannot be turned on normally.

According to an embodiment of the present invention, the computer system includes a power button, a detection device and a switching circuit. The power button is electrically coupled to the computer system, and the detection device is electrically coupled to the power button, and is used to output a switching signal and a power-on signal after the power button is continuously pressed for a switching time value, wherein the power-on signal commands The computer system performs a boot process. The switching circuit is electrically coupled to the detection device, and switches a first BIOS data used by a boot program in the computer system to a second BIOS data according to the switching signal.

Another object of the present invention is to provide a method for switching BIOS by using the power button, and only by using the power button to switch the BIOS to complete the system rescue action.

According to another embodiment of the present invention, the method includes pressing a power button in a computer system; detecting the time when the power button is pressed; judging whether the power button is continuously pressed for a switching time value; When the time value is reached, output a switch signal and a boot signal, wherein the boot signal commands the computer system to perform a boot procedure; and switch a first BIOS data used by the boot procedure in the computer system to a second BIOS data according to the switch signal.

It can be seen from the embodiments of the present invention that the computer system and method for switching BIOS by using the power button can allow users to switch the BIOS to the backup part very easily, and when the main BIOS is completely destroyed, that is, when the When the backup judging program of the computer system is destroyed, or when all BIOS data disappears or is disordered, only the power button can be used to switch the BIOS to complete the system rescue action. In addition, the purpose can be achieved without adding additional buttons or software design, which can relatively save the cost of system rescue.

Description of drawings

In order to make the above and other objects, features, advantages and embodiments of the present invention more obvious and understandable, the detailed description of the accompanying drawings is as follows:

FIG. 1 is a schematic diagram of a computer system according to an embodiment of the present invention;

2 is a schematic diagram of a computer system according to another embodiment of the present invention;

FIG. 3 shows a method for switching BIOS by using a power button according to an embodiment of the present invention.

Among them, reference signs:

100, 200: Computer systems

102, 202: Power button

104, 204: detection device

106, 206: switching circuit

108, 208: South Bridge chip

110, 210: input and output chip

112, 212, 214: BIOS ROM

1 14: The first memory area

116: Second memory area

300～316: steps

Detailed ways

Please refer to FIG. 1 , which is a schematic diagram of a computer system according to an embodiment of the present invention. The computer system 100 includes a power button 102 , a detection device 104 , a switching circuit 106 , a south bridge chip 108 , an I/O chip 110 and a BIOS ROM (BIOS ROM) 112 . The detection device 104 is electrically coupled to the power button 102, and is used to detect the time that the power button 102 is continuously pressed, and outputs a switching signal, a power-on signal or a power-off signal according to the time that the power button 102 is continuously pressed, wherein the power-on signal The computer system is commanded to perform a boot procedure, and the shutdown signal is used to command the computer system to perform a shutdown procedure. Wherein, the detection device 104 can be a programmable array logic (Programmable Array Logic, PAL) device, and the designer can add additional detection and judgment functions by writing or changing the program code of the programmable array logic device to output the detection Signal. The switching circuit 106 is electrically coupled to the detection device 104, and switches a first BIOS data that can be used by the boot program in the computer system to a second BIOS data according to the switching signal. In this embodiment, the switching circuit 106 It can be an XOR logic gate.

The south bridge chip 108 is electrically coupled to the detection device 104 and used for receiving the power-on signal or the power-off signal output by the detection device 104 to output a command signal. The I/O chip 110, such as the Super I/O chip, is electrically coupled to the south bridge chip 108, and receives the command signal output by the south bridge chip 108, so as to perform related booting procedures or shutdown procedures. The BIOS ROM 112 is electrically coupled to the switching circuit 106 and the I/O chip 110, and has a first memory area 114 for storing the first BIOS data and a first memory area 114 for storing the second BIOS data. Two memory areas 116.

When the power button 102 is continuously pressed for less than a predetermined time value, such as 4 seconds, the detection device 104 will output a power-on signal to the south bridge chip 108, and the south bridge chip 108 will then transmit the relevant power-on command signal to the input-output chip 110, The I/O chip 110 is made to read the first BIOS data in the first memory area 114 of the BIOS ROM 112, and perform related booting procedures.

When the power button 102 is continuously pressed for a predetermined time value, such as 4 seconds, the detection device 104 will output a shutdown signal to the south bridge chip 108, and the south bridge chip 108 will then transmit the relevant shutdown command signal to the I/O chip 110, thereby performing related shutdown procedures.

When the power button 102 is continuously pressed for a switching time value, such as 8 seconds, the detection device 104 will output a power-on signal to the south bridge chip 108 and output a switching signal to the switching circuit 106 , that is, the XOR logic gate. At this time, the XOR logic gate will switch the first memory area 114 in the BIOS ROM to the second memory area 116 according to the switching signal output by the detection device 104, so that the BIOS data originally passed through the first memory area 114 will be processed. The boot program can be switched to the second memory area 116 for the I/O chip 110 to read and execute the related boot program.

Please refer to FIG. 2 , which is a schematic diagram of a computer system according to another embodiment of the present invention. The computer system 200 includes a power button 202 , a detection device 204 , a switching circuit 206 , a south bridge chip 208 , an I/O chip 210 , a first BIOS ROM 212 and a second BIOS ROM 214 . Wherein, the connection and operation modes of the power button 202 , the detection device 204 , the south bridge chip 208 and the I/O chip 210 are the same as those of the embodiment shown in FIG. 1 . In this embodiment, the detecting device 204 can also be a Programmable Array Logic (PAL) device, and the switching circuit 106 can be a logic circuit. In addition, the first BIOS ROM 212 and the second BIOS ROM 214 are electrically coupled to the switching circuit 206 and the I/O chip 210 respectively, and are used to store the first BIOS data and the second BIOS data respectively.

When the power button 202 is continuously pressed for less than a predetermined time value, such as 4 seconds, the detection device 204 will output a power-on signal to the south bridge chip 208, and the south bridge chip 208 transmits a relevant power-on command signal to the input-output chip 210, so that The I/O chip 210 reads the first BIOS data in the first BIOS ROM 212, and performs related booting procedures.

When the power button 202 is continuously pressed for a predetermined time, such as 4 seconds, the detection device 204 will output a shutdown signal to the south bridge chip 208, and the south bridge chip 208 will then transmit the relevant shutdown command signal to the input and output chip 210, thereby performing related shutdown procedures.

When the power button 202 is continuously pressed for a switching time value, such as 8 seconds, the detection device 204 will output a power-on signal to the south bridge chip 208 and output a switching signal to the switching circuit 206, that is, the logic circuit. At this time, the logic circuit will switch the first BIOS ROM 212 to the second BIOS ROM 214 according to the switching signal output by the detection device 204, so that the first BIOS data in the first BIOS ROM 212 will be The booting process performed can be switched to the second BIOS ROM 214 for the I/O chip 110 to read and execute the related booting process. In this way, the BIOS in the computer system can be switched easily by using the power button.

Please refer to FIG. 3 , which is a method for switching BIOS by using a power button according to an embodiment of the present invention. First, a user presses a power button in the computer system (step 300). Next, the time when the power button is pressed is detected by a detection device (step 302). In addition, it is determined whether the power button is continuously pressed for less than a predetermined time value, such as 4 seconds (step 304 ). If the power button is continuously pressed for less than the predetermined time value, a power-on signal is output for the computer system to perform a related power-on procedure (step 306 ). If not, it is then judged whether the power button is continuously pressed for a predetermined time (step 308 ).

Next, if the power button is continuously pressed for a predetermined time, a shutdown signal is output for the computer system to perform a related shutdown procedure (step 310 ). If not, then judge whether the power button is continuously pressed for a switching time value, such as 8 seconds (step 312), wherein the predetermined time value is less than the switching time value.

In addition, if the power button is continuously pressed for a switching time value, a switching signal and a power-on signal are output (step 314 ). Then, switch the first BIOS data used by the boot program in the computer system to the second BIOS data according to the switch signal, and carry out the relevant boot program according to the boot signal (step 316)

From the above-mentioned embodiments of the present invention, it can be known that the computer system and method for switching the BIOS by using the power button can allow the user to switch the BIOS to the backup part very easily, and when the main BIOS is completely destroyed, that is, When the backup judging program of the computer system is destroyed, or when all the BIOS data therein disappear or become disordered, only the power button can be used to switch the BIOS to complete the system rescue action. In addition, the purpose can be achieved without adding additional buttons or software design, which can relatively save the cost of system rescue.

Certainly, the present invention also can have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these Corresponding changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (10)

1. A computer system utilizing a power button to switch basic input and output systems, characterized in that it comprises: a power button electrically coupled to the computer system; A detection device, electrically coupled to the power button, and used to output a switching signal and a power-on signal after the power button is continuously pressed for a switching time value, wherein the power-on signal commands the computer system to perform a power-on procedures; and A switching circuit is electrically coupled to the detection device, and switches a first BIOS data used by the boot program in the computer system to a second BIOS data according to the switching signal. 2. The computer system according to claim 1, wherein when the power button is continuously pressed for less than a predetermined time value, the detection device outputs the boot signal to command the computer system to perform the boot procedure, and when the power button When the button is continuously pressed for the predetermined time value, the detection device outputs a shutdown signal to order the computer system to perform a shutdown procedure, wherein the predetermined time value is less than the switching time value. 3. The computer system according to claim 1, further comprising: A BIOS read-only memory, electrically coupled to the switching circuit, and having a first memory area for storing the first BIOS data and a memory area for storing the second BIOS data - the second memory area. 4. The computer system according to claim 3, wherein the switching circuit comprises: An XOR logic gate, switching the first memory area in the BIOS ROM to the second memory area according to the switching signal output by the detection device, so as to be read by an I/O chip to perform the boot process. 5. The computer system according to claim 1, further comprising: A first BIOS ROM and a second BIOS ROM are both electrically coupled to the switching circuit and used to store the first BIOS data and the second BIOS data respectively. Input and output system data. 6. The computer system according to claim 5, wherein the switching circuit comprises: A logic circuit, switching the first BIOS ROM to the second BIOS ROM according to the switching signal output by the detection device, so as to be read by an I/O chip to perform the booting program. 7. The computer system according to claim 1, wherein the detecting device is a programmable array logic device. 8. A method for switching basic input and output systems using a power button, characterized in that it comprises: pressing a power button in a computer system; Detect when the power button is pressed; judging whether the power button is continuously pressed for a switching time value; When the power button is continuously pressed for the switching time value, a switching signal and a boot signal are output, wherein the boot signal commands the computer system to perform a boot procedure; and According to the switch signal, a first BIOS data used by the boot program in the computer system is switched to a second BIOS data. 9. The method of claim 8, further comprising: judging whether the power button is continuously pressed for less than a predetermined time value; When the power button is continuously pressed for less than the predetermined time value, outputting the boot signal to command the computer system to perform the boot procedure; judging whether the power button is continuously pressed for the predetermined time value; and When the power button is continuously pressed for the predetermined time value, a shutdown signal is output to command the computer system to perform a shutdown procedure. 10. The method according to claim 9, wherein the predetermined time value is shorter than the switching time value.

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