TWI796143B - Computer system and wake-up method - Google Patents

Abstract

A wake-up method is adopted to a computer system including a button unit, a single chip system, and a first control unit and includes: a set value input by the button unit and stored in a register of the first control unit when the single chip system operates in a normal mode; the first control unit detecting whether N buttons of the button unit are pressed, and defining the corresponding M buttons of the N buttons based on the set value of the register value as a wake-up button when the single chip system operates in a sleep mode; a wake-up signal generated so that the single chip system is switched to operate in the normal mode accordingly when the single chip system operates in the sleep mode and the first control unit determines that the wake-up button is pressed.

Description

Computer system and wake-up method

The present invention relates to a computer system and a wake-up method, in particular to a computer system and a wake-up method with the function of custom wake-up buttons.

In the existing computer systems, such as point-of-sale systems (POS), after entering the sleep mode (Sleep mode), it is all used to press the power button to wake up the system and then return to the normal operation mode. However, in addition to this existing method, whether there are other more flexible methods or systems for waking up the system operating in the sleep mode to operate in the normal mode has become a problem to be solved.

Therefore, the purpose of the present invention is to provide a computer system with the function of custom wake-up button and a wake-up method.

Therefore, an aspect of the present invention provides a computer system including a key unit, a system on chip (SOC), and a first control unit. The button unit includes N buttons, where N is a positive integer. The system on chip (SOC) is electrically connected to the key unit, and executes an operation system, and operates between a normal mode and a sleep mode (Sleep mode). The first control unit is electrically connected to the single-chip system and the key unit, and includes a register.

Wherein, when the single-chip system operates in the normal mode, a set value is input through the key unit and stored in the register of the first control unit. When the single-chip system operates in the sleep mode, the first control unit detects whether the N keys of the key unit are pressed, and defines the N keys of the key unit according to the set value of the register Among the M buttons corresponding to the set value, as a wake-up button, M is a positive integer and less than or equal to N.

When the single-chip system operates in the sleep mode and the first control unit determines that the wake-up button is pressed, a wake-up signal is generated. The single-chip system switches to operate in the normal mode according to the wake-up signal.

In some implementation aspects, the computer system further includes a basic input output system (BIOS) and a display unit. Wherein, when the single-chip system is changed from operating in the normal mode to operating in the sleep mode, a sleep signal is generated, and the sleep signal is transmitted to the basic input output system, so that the basic input output system outputs a sleep trigger signal to the display unit and the first control unit.

In some implementation aspects, the sleep mode is the SOIX state or the S3 state of Advanced Configuration and Power Interface (ACPI).

In some implementation aspects, the set value is equal to 0xb _K ... b _N-1 ... b ₁ b ₀ , K is a positive integer greater than or equal to (N-1). When the single-chip system is operating in the sleep mode, the first control unit judges whether the corresponding one of the N keys is the wake-up key according to the logic value of b _j , j=1, 2...,N.

In some embodiments, the computer system further includes a second control unit electrically connected to the first control unit and the single-chip system. Wherein, when the first control unit generates the wake-up signal, the second control unit receives the wake-up signal to control multiple voltage sources to be turned on according to a predetermined sequence, and notify the single-chip system to switch from operating in the sleep mode to operating in the normal mode.

Therefore, another aspect of the present invention provides a wake-up method, which is suitable for a computer system, and the computer system includes a key unit, a single-chip system (SOC), and a first control unit. The key unit includes N keys. The wake-up method includes steps (A)-(C).

In step (A), when the single-chip system is operating in a normal mode, a set value is input through the key unit and stored in a register of the first control unit.

In step (B), when the single-chip system operates in a sleep mode, the first control unit detects whether the N keys of the key unit are pressed, and defines the Among the N keys of the key unit, the M keys corresponding to the set value are used as a wake-up key, and M is a positive integer less than or equal to N.

In step (C), when the single-chip system operates in the sleep mode and the first control unit determines that the wake-up button is pressed, a wake-up signal is generated, and the single-chip system switches to operate in the sleep mode according to the wake-up signal. normal mode.

In some implementation aspects, the computer system further includes a basic input output system (BIOS) and a display unit. The wake-up method also includes a step (D). When the single-chip system is changed from operating in the normal mode to operating in the sleep mode, a sleep signal is generated, and the sleep signal is sent to the basic input output system, so that the basic The I/O system outputs a sleep trigger signal to the display unit and the first control unit.

In some implementation aspects, wherein, in the step (B), the sleep mode is the SOIX state or the S3 state of Advanced Configuration and Power Interface (ACPI).

In some implementation aspects, wherein, in step (B), the set value is equal to 0xb _K ... b _N-1 ... b ₁ b ₀ , K is a positive integer greater than or equal to (N-1), when When the single-chip system operates in the sleep mode, the first control unit judges whether the corresponding one of the N keys is the wake-up key according to the logic value of b _j , j=1, 2...,N.

In some implementation aspects, the computer system further includes a second control unit. Wherein, in step (C), when the first control unit generates the wake-up signal, the second control unit receives the wake-up signal to control multiple voltage sources to be turned on according to a predetermined sequence, and notify the single-chip system to be operated by The sleep mode is changed to operate in the normal mode.

The effect of the present invention is: when the first control unit is in the dormant mode, according to the set value stored in the temporary register, it is judged that the wake-up button is pressed to generate the wake-up signal, so that the single-chip system data to switch to operate in the normal mode. In addition, the single-chip system can realize the function of customizing the wake-up button by inputting the setting value through the button unit.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to Fig. 1, one embodiment of computer system of the present invention comprises a button unit 3, a single chip system (SOC) 2, a first control unit 1, a second control unit 4, a basic input output system (BIOS) 5, and a display unit 6. The computer system is, for example, a point-of-sale system (POS). The button unit 3 includes N buttons, where N is a positive integer. The display unit 6 is, for example, a liquid crystal display.

This single-chip system 2 has the function equivalent to a central processing unit (CPU), and is electrically connected to the key unit 3, the second control unit 4, and the basic input output system 5, and executes an operating system, and operates on Between a normal mode and a sleep mode. The operating system is, for example, a Windows operating system.

The first control unit 1 is electrically connected to the single-chip system 2 , the key unit 3 , the second control unit 4 , the BIOS 5 , and the display unit 6 , and includes a register 11 . The register 11 stores a set value. The second control unit 4 is used to control multiple voltage sources to be turned on, and the voltage sources provide the power required for the computer system to operate. In this embodiment, the first control unit 1 and the second control unit 4 both use the same microcontroller, but store different firmware to enable them to perform different functions, such as the second control unit Unit 4 is a microcontroller (Power sequence MCU) used as a power sequence control.

The wake-up method includes steps S1-S4.

In step S1, when the single-chip system 2 is operating in the normal mode, the set value is input through the key unit 3 and stored in the register 11 of the first control unit 1 . For example, the set value is transmitted between the single-chip system 2 and the first control unit 1 through an integrated circuit bus (I2C).

In step S2, when the user issues a dormancy command on the operating system, or the operating system judges that no command has been received within the set time (such as the button unit 4 is not pressed), the single-chip system 2. Change from operating in the normal mode to operating in the sleep mode to generate a sleep signal, and transmit the sleep signal to the BIOS 5, so that the BIOS 5 outputs a sleep trigger signal to the display unit 6 and the first control unit 1, and then notify the display unit 6 to also operate in the power-saving state corresponding to the sleep mode (eg, the screen is dimmed or not displayed).

In step S3, when the first control unit 1 receives the sleep trigger signal, it knows that the single-chip system 2 is operating in the sleep mode. At this time, the first control unit 1 continues to detect whether the N keys of the key unit 3 are pressed, and according to the set value of the register 11, defines the pair of the N keys of the key unit 3 The M number of values should be set, as a wake-up button, M is a positive integer and less than or equal to N.

More specifically, the sleep mode is the SOIX state or the S3 state of the Advanced Configuration and Power Interface (ACPI). The set value is equal to 0xb _K ... b _N-1 ... b ₁ b ₀ , K is a positive integer greater than or equal to (N-1), and the first control unit 1 judges the N according to the logic value of b _j Whether the corresponding one of the buttons is used as the wake-up button, j=1, 2..., N.

For example, N=6, K=8, the button unit 3 includes 6 buttons, such as "volume up", "volume down", "function left", "function right", "trigger left", and " trigger right", the firmware of the first control unit 1 has defined b ₀ , b ₁ , b ₂ , b ₃ , b ₄ , and b ₅ respectively corresponding to "volume up", "volume down", "function left", When "function right", "trigger left" and "trigger right" are defined, and the logic value of b _j is equal to logic 1, the key corresponding to b _j belongs to this type of wake-up key. Therefore, if the set value is equal to 0x00000000, it means that the 6 buttons do not belong to this kind of wake-up button; if the set value is equal to 0x00111111, it means that the 6 buttons belong to this kind of wake-up button; if the set value is equal to 0x00001100, it means that "function left" and "function right” belongs to this kind of wake-up button. In addition, it should be specially supplemented that: the 6 buttons in the aforementioned examples are respectively electrically connected to the 6 pins (Pins) of the first control unit 1, that is to say, when the first control unit 1 is a microcontroller, The six general-purpose input and output (GPIO) pins of the microcontroller are defined as input pins for electrically connecting the six buttons respectively to receive corresponding signals.

In step S4, when the single-chip system 2 is operating in the sleep mode and the first control unit 1 determines that the wake-up button is pressed, a wake-up signal is generated. The second control unit 4 receives the wake-up signal, controls the voltage sources to be turned on according to a predetermined sequence, and notifies the single-chip system 2 to change from operating in the sleep mode to operating in the normal mode. In other words, the temporary register 11 only needs one byte (1 byte) to control 8 keys, that is, the 8 bits of 1 byte correspond to 8 keys respectively, and wake up according to the user-defined Buttons determine which buttons can wake up the single-chip system 2 .

In summary, when the first control unit 1 is in the sleep mode, according to the set value stored in the temporary register 11, it is judged that the wake-up button is pressed to generate the wake-up signal, so that the single-chip system 2 accordingly to operate in the normal mode. In addition, the single-chip system 2 can realize the function of a self-defined wake-up button by inputting the set value through the button unit 3 , so the purpose of the present invention can indeed be achieved.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: The first control unit 11: scratchpad 2: Single chip system 3: Button unit 4: Second control unit 5: Basic input and output system 6: Display unit S1~S4: steps

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Figure 1 is a block diagram illustrating an embodiment of the computer system of the present invention; and FIG. 2 is a flowchart illustrating a wake-up method implemented by the embodiment.

S1~S4: steps

Claims (8)

A computer system comprising: a button unit including N buttons, where N is a positive integer; a single-chip system (SOC), electrically connected to the button unit, and executing an operating system, and operating in a normal mode and a sleep mode (Sleep mode); and a first control unit, which is electrically connected to the single-chip system and the key unit, and includes a temporary register; wherein, when the single-chip system operates in the normal mode, by the key unit Input a set value and store it in the register of the first control unit, the set value is equal to 0xb _K ... b _N-1 ... b ₁ b ₀ , K is a positive integer greater than or equal to (N -1), when the single-chip system is operating in the sleep mode, the first control unit detects whether the N keys of the key unit are pressed, and defines the key unit according to the set value of the temporary register Among the N buttons, the M buttons corresponding to the set value are used as a wake-up button, that is, the first control unit judges whether the corresponding one of the N buttons is used as the wake-up button according to the logic value of _bj , j=1, 2..., N, M is a positive integer and less than or equal to N, when the single-chip system operates in the sleep mode and the first control unit judges that the wake-up button is pressed, a wake-up is generated signal, the single-chip system turns to operate in the normal mode according to the wake-up signal. The computer system as described in claim 1, further comprising a basic input output system (BIOS) and a display unit, wherein, when the single-chip system is operated by When the normal mode is changed to operate in the sleep mode, a sleep signal is generated, and the sleep signal is sent to the basic input output system, so that the basic input output system outputs a sleep trigger signal to the display unit and the first control unit . The computer system according to claim 2, wherein the sleep mode is the SOIX state or the S3 state of the Advanced Configuration and Power Interface (ACPI). The computer system according to claim 3, further comprising a second control unit electrically connected to the first control unit and the single-chip system, wherein when the first control unit generates the wake-up signal, the second control unit The wake-up signal is received to control a plurality of voltage sources to be turned on according to a predetermined sequence, and notify the single-chip system to change from operating in the sleep mode to operating in the normal mode. A wake-up method is applicable to a computer system, the computer system includes a key unit, a single-chip system (SOC), and a first control unit, the key unit includes N keys, the wake-up method includes: (A) when When the single-chip system operates in a normal mode, a set value is input through the key unit and stored in a register of the first control unit, and the set value is equal to 0xb _K ... b _N-1 ... b ₁ b ₀ , K is a positive integer greater than or equal to (N-1); (B) when the single-chip system operates in a sleep mode, the first control unit detects whether the N keys of the key unit is pressed, and according to the set value of the temporary register, define the M of the N keys of the key unit corresponding to the set value as a wake-up key, that is, the first control unit according to the b _j The logical value judges whether one of the corresponding ones of the N buttons is used as the wake-up button, j=1, 2..., N, M is a positive integer and is less than or equal to N; and (C) when the single-chip system operates In the sleep mode and when the first control unit judges that the wake-up button is pressed, a wake-up signal is generated, and the single-chip system is converted to operate in the normal mode according to the wake-up signal. As the wake-up method described in claim item 5, the computer system also includes a basic input output system (BIOS) and a display unit, and the wake-up method also includes step (D), when the single-chip system is changed from operating in normal mode to When operating in the sleep mode, generate a sleep signal and send the sleep signal to the BIOS, so that the BIOS outputs a sleep trigger signal to the display unit and the first control unit. The wake-up method as claimed in item 6, wherein, in the step (B), the sleep mode is the SOIX state or the S3 state of the Advanced Configuration and Power Interface (ACPI). The wake-up method as described in claim 7, the computer system further includes a second control unit, wherein, in step (C), when the first control unit generates the wake-up signal, the second control unit receives the wake-up signal The signal controls multiple voltage sources to be turned on according to a predetermined sequence, and notifies the single-chip system to change from operating in the sleep mode to operating in the normal mode.

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