TWI480726B - Power supply controlling system for motherboard by boundary scan and method thereof - Google Patents

Description

System and method for power supply control of main board by boundary scan

A system and method for power supply control, in particular, a system and method for controlling power supply of a motherboard by boundary scan.

Because of the complexity of the motherboard, a variety of power supply potentials coexist, which is a multi-potential system. In the implementation, the power control chip is usually used as the system power supply control module, and customized according to specific logic requirements.

After the motherboard is powered on, the power control chip that controls the power supply of the system first starts to work, and checks whether the core devices such as a central processing unit (CPU), a random access memory (RAM), etc. are in a normal state, and then The control signal is issued according to the pre-customized logic function to enable the operation of each power conversion component, thereby generating the 1.8V, 2.5V, 3.3V, 5V... equipotential required by the remaining components, and the entire motherboard is energized.

It can be seen that the power control chip relies on the normal state of the central processing unit, random access memory, etc. to issue a control signal. If the core components such as the central processing unit, random access memory, etc. generate errors or malfunctions, the motherboard Power up will fail.

One solution to this problem is to restart the motherboard and construct the signal required by the power control chip to enter the normal working state by means of flying wires, but this requires the internal logic of the maintenance personnel to work on the motherboard. Very clear, and this is very difficult in practice.

In summary, it can be seen that in the prior art, the motherboard has long been required to rely on the core components for powering the motherboard, or to construct a power control chip into the normal working state signal through the flying wire, so as to carry out the problem of inconvenient subsequent maintenance. because It is necessary to propose improved technical means to solve this problem.

In view of the prior art, there is a problem that the motherboard needs to rely on the core component for powering the motherboard, or the power supply control chip is built into the normal working state signal through the flying wire to perform the inconvenience of subsequent maintenance processing, and the present invention discloses a boundary by using the boundary. A system and method for scanning power supply control of a motherboard, wherein:

The system for controlling power supply of a motherboard by boundary scan includes: a motherboard and a control terminal, wherein: the motherboard further includes: a power control chip and a circuit board connection interface; and the control terminal further includes: a receiving module Groups, analysis modules, display modules, selection modules, generation modules, and control interface.

The power control chip of the motherboard is used to push the control data from the Boundary Scan Chain in the power control chip according to the Boundary Scan technology to control multiple power sources electrically connected to the power control chip. The conversion component enables and disables, and provides electrical connection according to the control data to the electronic component corresponding to the enabled power conversion component; and the basis of the board connection interface of the motherboard and the power control chip The boundary scan technique forms an electrical connection.

The receiving module of the control terminal is used for receiving information of the motherboard; the analysis module of the control terminal is used for analyzing the information of the motherboard into a power configuration, a power connection configuration and an electronic component connection configuration; the display module of the control terminal is for displaying Power configuration, power connection configuration and electronic component wiring configuration; control terminal selection module is used to select power configuration, power connection configuration and electronic component wiring configuration; control terminal generation module is used to select the power supply Configuration, power connection configuration and electronic component connection configuration generate control data; and control terminal connection interface for connecting to the circuit board interface Sexual connection and provide control data to the board connection interface.

The method for controlling power supply of a motherboard by boundary scan disclosed in the present invention comprises the following steps:

First, the control terminal receives the information of the motherboard; then, the control terminal analyzes the information of the motherboard into a power configuration, a power connection configuration, and an electronic component connection configuration; then, the control terminal displays the power configuration, the power connection configuration, and the electronic component connection. Configuration; then, the control terminal selects the power configuration, the power connection configuration, and the electronic component connection configuration; then, the control terminal selects the power configuration, the power connection configuration, and the electronic component connection configuration to generate control data; and then, the control terminal The control interface is electrically connected to the circuit board connection interface of the motherboard, and provides control data to the circuit board connection interface. Finally, the power control chip of the motherboard controls the data from the power control chip according to Boundary Scan technology. The Boundary Scan Chain is pushed to control the enabling and disabling of multiple power conversion components electrically connected to the power control chip, and provides electrical connection according to the control data. Power is supplied to the electronic components corresponding to the power conversion components.

The system and method disclosed by the present invention are different from the prior art in that the present invention pushes control data from the boundary scan chain in the power control chip according to the boundary scan technology through the power control chip of the motherboard to control the electrical properties. A plurality of power conversion components connected to the power control chip are enabled and disabled, and are electrically connected to the electronic components corresponding to the enabled power conversion components according to the control data, thereby preventing the power supply from being controlled by the power supply of the motherboard The inspection of the core components can directly control the power supply of the motherboard to the electronic components, facilitating subsequent maintenance processing.

Through the above technical means, the present invention can achieve direct control of the power supply of the motherboard to the electronic components, and facilitate the technical effect of the subsequent maintenance processing.

The embodiments of the present invention will be described in detail below with reference to the drawings and embodiments, so that the application of the technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.

The following is a description of the system for controlling the power supply of the motherboard by boundary scan according to the present invention. Please refer to FIG. 1 and FIG. 1 shows the motherboard of the present invention by boundary scan. System block diagram of power supply control.

The system for controlling power supply of a motherboard by boundary scan includes: a motherboard 10 and a control terminal 20, wherein: the motherboard 10 further includes: a power control chip 11 and a circuit board connection interface 12; 20 further includes: a receiving module 21, an analysis module 22, a display module 23, a selection module 24, a generation module 25, and a control terminal connection interface 26.

The control terminal connection interface 26 of the control terminal 20 is electrically connected to the circuit board connection interface 12 of the motherboard 10, and the control terminal connection interface 26 of the control terminal 20 can be a universal serial bus (USB) interface or The Joint Test Action Group (JTAG) interface is merely illustrative and is not intended to limit the scope of application of the present invention, and the board connection interface 12 of the motherboard 10 is generally tested in conjunction with the test. The group interface is configured to cooperate with the power control chip 11 of the motherboard 10 to form an electrical connection according to a boundary scan technique.

When the control terminal connection interface 26 of the control terminal 20 is a joint test working group interface, the control terminal connection interface 26 of the control terminal 20 and the circuit board connection interface of the motherboard 10 can be connected without any interface conversion. An electrical connection is formed, and when the control terminal connection interface 26 of the control terminal 20 is a universal serial bus interface, the interface conversion connector 30 is required to transmit the parallel serial communication bus interface. Switch to the joint test workgroup interface for serial transmission.

The power control chip 11 of the motherboard 10 may be a Complex Programmable Logic Device (CPLD) chip or a Field Programmable Gate Array (FPGA) chip, and supports the JTAG 1149.1 specification, for example. : Intel80386TM and Intel80486 and above processors, Motorola's 68040 microprocessor, Xilinx's XC3000 series FPGAs, Texas Instruction's C40 series DSP chips, DEC's Alpha 21164 series RISC chips, etc., are for illustrative purposes only. It is not intended to limit the scope of application of the invention.

The user first receives the motherboard information through the receiving module 21 of the control terminal 20. The motherboard information includes the power configuration, the power connection configuration, and the electronic component connection configuration. The power configuration may be a 1.8 volt power conversion component. 2.5 volt power conversion component, 3.3 volt power conversion component, etc.; the above power connection configuration can be how many 1.8 volt power conversion components, 2.5 volt power conversion components, 3.3 volt power conversion components, etc. And the power conversion component is connected to the power control chip 11 of the motherboard 10; the above-mentioned electronic component connection configuration may be a connection configuration of the electronic component and the power conversion component, which is merely illustrative and is not limited thereto. The scope of application of the present invention.

The receiving module 21 of the control terminal 20 receives the information of the motherboard, and then analyzes the information of the motherboard received by the receiving module 21 of the control terminal 20 through the analysis module 22 of the control terminal 20 into a power configuration and a power supply. The line configuration and the electronic component connection configuration, and then the analysis result of the motherboard information can be displayed through the display module 23 of the control terminal 20, that is, the power supply configuration, the power connection configuration, and the electronic component connection configuration are illustrated. Like the power control chip 11 showing the motherboard 10, the power conversion element 13 and the connection relationship of the electronic components 14 to each other.

Then, the user can select the power configuration, the power connection configuration, and the electronic configuration through the selection module 24 of the control terminal 20 in the power configuration, power connection configuration, and electronic component connection configuration displayed on the display module 23 of the control terminal 20. The component connection configuration, and when the power configuration, the power connection configuration, and the electronic component connection configuration are selected through the selection module 24 of the control terminal 20, the generation module 25 of the control terminal 20 will select the power configuration and power supply. The line configuration and the electronic component connection configuration generate control data, and the control data includes analog electronic component drive control.

After the generation module 25 of the control terminal 20 generates the control data, the control data can be provided to the circuit board connection interface 12 of the motherboard 10 through the control terminal connection interface 26 of the control terminal 20, and the power control chip 11 of the motherboard 10 is The control data obtained by the board connection interface 12 of the motherboard 10 can be pushed according to the boundary scan technology to control the enabling and disabling of the plurality of power conversion components electrically connected to the power control chip. And providing electrical power corresponding to the electronic component corresponding to the enabled power conversion component according to the control data.

Therefore, the core components of the power control chip 11 of the motherboard 10 (for example, a central processing unit (CPU), a random access memory (RAM), etc.) can be checked. Direct control of the power supply of the electronic components of the motherboard 10 facilitates subsequent maintenance processing.

Next, the operation mode and flow of the present invention will be described below by way of an embodiment. The following embodiments will be described with reference to "first figure" and "second figure", and "second figure" is shown as The present invention provides a flow chart of a method for controlling power supply of a motherboard by boundary scan.

Please refer to "Figure 3", "Figure 3" shows the invention by border sweep A schematic diagram of the system architecture for power supply control of the motherboard.

First, it is assumed that the control terminal connection interface 26 of the control terminal 20 is a Universal Serial Bus (USB) interface, and the circuit board connection interface 12 of the motherboard 10 is a Joint Test Action Group (JTAG) interface. The control terminal connection interface 26 of the control terminal 20 is electrically connected to the circuit board connection interface 12 of the motherboard 10 through the interface conversion connector 30, and the circuit board connection interface 12 of the motherboard 10 and the power supply of the motherboard 10 are controlled. The wafers 11 are electrically connected according to a boundary scan technique, and the first power conversion element 131, the second power conversion element 132, and the third power conversion element 133 are formed with the power control wafer 11 of the motherboard 10 according to a boundary scan technique. Electrically connected, and the first electronic component 141 and the second electronic component 142 are electrically connected to the first power conversion component 131, the third electronic component 143 is electrically connected to the second power conversion component 132, and the fourth electronic component 144 is electrically connected. It is electrically connected to the third power conversion element 133.

Please refer to FIG. 4, and FIG. 4 is a schematic diagram showing the result of information analysis of the motherboard of the present invention by border scan for power supply control of the motherboard.

The user first receives the information of the motherboard through the receiving module 21 of the control terminal 20 (step 110), and analyzes the information of the motherboard received by the receiving module 21 of the control terminal 20 by the analysis module 22 of the control terminal 20 as a power source. Configuration, power connection configuration and electronic component connection configuration (step 120), then, the analysis result of the motherboard information can be displayed through the display module 23 of the control terminal 20 (step 130), which is 1.8 volts. a power conversion element 131, a second power conversion element 132 of 2.5 volts, and a third power conversion element 133 of 3.3 volts, and the first power conversion element 131, the second power conversion element 132, and the third power conversion element 133 and the motherboard For the configuration of the power control chip 11 of 10, please refer to "Figure 4" and the first electronic element. The first electronic component 141 and the second power component 142 are electrically connected to the first power conversion component 131, the third electronic component 143 is electrically connected to the second power conversion component 132, and the fourth electronic component 144 and the third power conversion component 133 are formed. For electrical connection, please refer to "Figure 4" for the above connection configuration.

Next, please refer to the "FIG. 3" again, and the user can display the power supply configuration, the power connection configuration, and the electronic component connection configuration displayed on the display module 23 of the control terminal 20 through the selection module 24 of the control terminal 20. The first power conversion component 131 and the second electronic component 142 of 1.8 volts are selected (step 140), and the selected first power conversion component 131 and the second electronic component 142 can be further selected by the generation module 25 of the control terminal 20. Control data 31 is generated (step 150).

After the generation module 25 of the control terminal 20 generates the control data 31, the control data 31 can be provided to the circuit board connection interface 12 of the motherboard 10 through the control terminal connection interface 26 of the control terminal 20 (step 160), the motherboard 10 The power control chip 11 can push the control data 31 obtained by the circuit board connection interface 12 of the motherboard 10 according to the boundary scan technology, that is, the first power conversion component 131 can be controlled to provide electrical connection according to the control data 31. The second electronic component 142 of the first power conversion component 131 is powered (step 170).

Therefore, the core components of the power control chip 11 of the motherboard 10 (for example, a central processing unit (CPU), a random access memory (RAM), etc.) can be checked. Direct control of the power supply of the electronic components of the motherboard 10 facilitates subsequent maintenance processing.

In summary, it can be seen that the difference between the present invention and the prior art is that the present invention pushes the control data from the boundary scan chain in the power control chip according to the boundary scan technology through the power control chip of the motherboard to control the electrical connection. Power control crystal The plurality of power conversion elements of the chip are enabled and disabled, and are powered according to the control data to provide electrical connection to the electronic components corresponding to the enabled power conversion component, thereby controlling the core components of the chip without passing through the power supply of the motherboard. Check, you can directly control the power supply of the motherboard to the electronic components, to facilitate subsequent maintenance.

The technical means can solve the problem that the motherboard in the prior art needs to rely on the core component to power on the motherboard, or construct the power control chip into the normal working state signal through the flying wire, so as to carry out the problem of inconvenient maintenance and subsequent processing. In turn, the direct control of the power supply of the electronic components of the motherboard is facilitated, and the technical effect of the subsequent maintenance processing is facilitated.

While the embodiments of the present invention have been described above, the above description is not intended to limit the scope of the invention. Any changes in the form and details of the embodiments may be made without departing from the spirit and scope of the invention. The scope of the invention is to be determined by the scope of the appended claims.

10‧‧‧ motherboard

11‧‧‧Power Control Wafer

12‧‧‧Board connection interface

131‧‧‧First power conversion component

132‧‧‧Second power conversion element

133‧‧‧ Third power conversion component

141‧‧‧First electronic component

142‧‧‧Second electronic components

143‧‧‧ Third electronic component

144‧‧‧4th electronic component

20‧‧‧Control end

21‧‧‧ receiving module

22‧‧‧Analysis module

23‧‧‧Display module

24‧‧‧Selection module

25‧‧‧Generation Module

26‧‧‧Control terminal connection interface

30‧‧‧Interface conversion connector

Step 110‧‧‧Control terminal receives the motherboard information

Step 120‧‧‧ The console analyzes the motherboard information into the power configuration, power connection configuration, and electronic component wiring configuration.

Step 130‧‧‧ Control terminal shows power configuration, power connection configuration and electronic component wiring configuration

Step 140‧‧‧ Control terminal selects power supply configuration, power connection configuration and electronic component wiring configuration

Step 150‧‧‧ The control terminal will select the power configuration, power connection configuration and electronics Component connection configuration generates control data

Step 160‧‧‧ The control terminal is electrically connected to the circuit board connection interface of the motherboard through the control terminal connection interface, and provides control data to the circuit board connection interface

Step 170‧‧‧ The power control chip of the motherboard pushes the control data from the boundary scan chain in the power control chip according to the boundary scan technology to control the enabling and disabling of the plurality of power conversion components electrically connected to the power control chip And providing electrical connection to the electronic component corresponding to the enabled power conversion component according to the control data

FIG. 1 is a block diagram of a system for controlling power supply of a motherboard by boundary scan according to the present invention.

FIG. 2 is a flow chart showing a method for controlling power supply of a motherboard by boundary scan according to the present invention.

FIG. 3 is a schematic diagram of a system architecture for controlling power supply of a motherboard by boundary scan according to the present invention.

FIG. 4 is a schematic diagram showing the result of information analysis of the motherboard of the power supply control of the motherboard by boundary scan according to the present invention.

10‧‧‧ motherboard

11‧‧‧Power Control Wafer

12‧‧‧Board connection interface

20‧‧‧Control end

21‧‧‧ receiving module

22‧‧‧Analysis module

23‧‧‧Display module

24‧‧‧Selection module

25‧‧‧Generation Module

26‧‧‧Control terminal connection interface

30‧‧‧Interface conversion connector

Claims (8)

A system for power supply control of a motherboard by boundary scan, comprising: a motherboard, the motherboard further comprising: a power control chip for controlling a control data by the power supply according to a Boundary Scan technology A Boundary Scan Chain in the chip is pushed to control enabling and disabling of a plurality of power conversion elements electrically connected to the power control chip, and providing electrical properties according to the control data Connected to the electronic component corresponding to the enabled power conversion component; and a circuit board connection interface, the circuit board connection interface and the power control chip form an electrical connection according to the boundary scan technology; and a control terminal, the control terminal further The method includes: a receiving module for receiving information of a motherboard; and an analysis module for analyzing the information of the motherboard into a power configuration, a power connection configuration, and an electronic component connection configuration; and a display module The power supply configuration, the power connection configuration, and the electronic component connection configuration are displayed; a selection module is configured to select the power configuration, the power a connection configuration and the electronic component connection configuration; a generation module for configuring the selected power configuration, the power connection configuration and the electronic component connection to generate a control data; and a control terminal connection interface, The control terminal connection interface is electrically connected to the circuit board connection interface and provides the control data to the circuit board connection interface. A system for controlling power supply of a motherboard by boundary scan as described in claim 1, wherein the control data includes analog electronic component drive control. The system for controlling power supply of a motherboard by boundary scan according to claim 1, wherein the power control chip comprises a Complex Programmable Logic Device (CPLD) chip and a field programmable logic gate array. (Field Programmable Gate Array, FPGA) chip. The system for controlling power supply of a motherboard by boundary scan according to claim 1, wherein the system for controlling power supply of the motherboard by boundary scan further comprises an interface conversion connector for providing the circuit. Interface conversion between the board connection interface and the control terminal connection interface. A method for controlling power supply of a motherboard by boundary scan includes the following steps: a control terminal receives information of a motherboard; the control terminal analyzes the information of the motherboard into a power configuration, a power connection configuration, and an electronic Component connection configuration; the control terminal displays the power configuration, the power connection configuration, and the electronic component connection configuration; the control terminal selects the power configuration, the power connection configuration, and the electronic component connection configuration; the control terminal The selected power configuration, the power connection configuration, and the electronic component connection configuration generate a control data; the control terminal is connected to a circuit board of a motherboard through a control terminal connection interface Connecting the interface to the electrical connection and providing the control data to the circuit board connection interface; and a power control chip of the motherboard controls a boundary scan chain in the chip by the power source according to a Boundary Scan technology The Boundary Scan Chain is configured to control the enabling and disabling of a plurality of power conversion components electrically connected to the power control chip, and provide electrical connection to the enabled power conversion according to the control data. The electronic components corresponding to the components are powered. The method for controlling power supply of a motherboard by boundary scan according to claim 5, wherein the control terminal generates the control by selecting the power configuration, the power connection configuration, and the electronic component connection configuration. In the data step, the control data includes analog electronic component drive control. The method for controlling power supply of a motherboard by boundary scan according to claim 5, wherein the power control chip comprises a Complex Programmable Logic Device (CPLD) chip and a field programmable logic gate array. (Field Programmable Gate Array, FPGA) chip. The method for performing power supply control of a motherboard by boundary scan, as described in claim 5, wherein the control terminal is electrically connected to the circuit board connection interface of the motherboard through the control terminal connection interface, and provides the The step of controlling the data to the board connection interface is through an interface conversion connector to perform interface conversion between the board connection interface and the control terminal connection interface.