CN202815818U

CN202815818U - Notebook computer mainboard diagnosis card supporting four interfaces

Info

Publication number: CN202815818U
Application number: CN 201220130057
Authority: CN
Inventors: 谢强
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-30
Filing date: 2012-03-30
Publication date: 2013-03-20
Anticipated expiration: 2022-03-30

Abstract

The utility model relates to a notebook computer mainboard diagnosis card supporting four interfaces, including a MiniPCIe golden finger interface, an LPC bus interface, a serial port bus interface, an I2C bus interface, and an LPC bus decoding module, a serial port bus decoding module, an I2C bus decoding module, a display decoding module and a display module which are connected with the interfaces. The MiniPCIe golden finger interface is connected with the LPC bus interface and the serial port bus interface, and then the LPC bus interface and the serial port bus interface are connected with the corresponding LPC bus decoding module and the serial port bus decoding module, the I2C bus interface is connected to the I2C bus decoding module, the output of each bus decoding module is used as the input of the display decoding module, and the output of the display decoding module is connected to the display module. Because the four different interfaces are integrated on one notebook computer mainboard diagnosis card, the notebook computer mainboard diagnosis card can be widely applied to notebook computer mainboards in different types.

Description

A kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces

[technical field]

The utility model relates to a kind of computer hardware, refers in particular to a kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces.Its four kinds of interfaces supporting comprise: MiniPCIe golden finger interface, lpc bus interface, serial port bus interface and I2C bus interface.

[background technology]

The main board for notebook computer diagnostic card is that main board for notebook computer keeps in repair requisite instrument.But because the main board for notebook computer type is various, and different main board for notebook computer manufacturers often adopts different bus interface as the main board diagnostic interface, thereby the main board for notebook computer model that causes notebook mainboard maintenance personal to have nothing for it but different is equipped with different main board for notebook computer diagnostic cards.

[summary of the invention]

The purpose of this utility model is to overcome defects, has proposed a kind of method for designing of supporting the main board for notebook computer diagnostic card of four kinds of interfaces.

The purpose of this utility model is achieved in that a kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces, it comprises the MiniPCIe golden finger interface, the lpc bus interface, the serial port bus interface, the I2C bus interface reaches the lpc bus decoding module that links to each other with it, serial port bus decoding module, I2C bus decoding module shows decoding module and display module.Described MiniPCIe golden finger interface is connected to lpc bus interface and serial port bus interface, then be connected respectively to its corresponding lpc bus decoding module and serial port bus decoding module, described I2C bus interface is connected to I2C bus decoding module, the output of each bus decoding module shows that as the input that shows decoding module the output of decoding module is connected to display module.

In the said structure, described lpc bus decoding module and demonstration decoding module can be realized by programmable logic device (PLD) or microprocessor.

In the said structure, described serial port bus decoding module and I2C bus decoding module can be realized by microprocessor or programmable logic device (PLD).

In the said structure, described display module can adopt seven segment digital tubes or lcd screen to show.

Than other notebook computer diagnostic cards, the beneficial effects of the utility model are by supporting four kinds of interfaces to adapt to the notes computer main board that different computers mainboard manufacturer produces, thereby greatly facilitate the notebook computer maintenance personal.

[description of drawings]

Below in conjunction with accompanying drawing in detail concrete structure of the present utility model is described in detail

Fig. 1 is the schematic block circuit diagram of specific embodiment of the utility model

Fig. 2 is the circuit theory diagrams of specific embodiment of the utility model

[embodiment]

The utility model has related to a kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces, it comprises the MiniPCIe golden finger interface, the lpc bus interface, the serial port bus interface, the I2C bus interface reaches the lpc bus decoding module that links to each other with it, serial port bus decoding module, I2C bus decoding module shows decoding module and display module.Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

As shown in Figure 1, the MiniPCIe golden finger interface 1. be connected to the lpc bus interface 2. with the serial port bus interface 3., then be connected respectively to its corresponding lpc bus decoding module 5. with serial port bus decoding module 6., 7. 4. the I2C bus interface be connected to I2C bus decoding module, the lpc bus decoding module 5., serial port bus decoding module 6. with the output 7. of I2C bus decoding module as showing decoding module input 8., show that 9. decoding module output 8. be connected to display module.

Fig. 2 is the implementation circuit theory diagrams: among the figure J1 be the MiniPCIe golden finger interface 1.; Among the figure J2 be the lpc bus interface 2. with the serial port bus interface 3., what this example adopted is row's pin that comprises 11 pins; Among the figure J3 be the I2C bus interface 4., what this example adopted is row's pin that comprises 4 pins; U1 is used for lpc bus decoding and shows decoding among the figure, and that this example adopts is programmable logic device (PLD) EPM7032; U2 is used for the decoding of serial port bus and the decoding of I2C bus among the figure, and that this example adopts is microprocessor PIC16F1829; LED1 and LED2 are the display modules of diagnostic card among the figure, and this example adopts is 2 seven segment digital tubes.

The lpc bus interface comprises clock signal LPCCLK, reset signal LPC_RSTJ, frame signal LFRE and data-signal LAD0-LAD3.In this example, lpc bus decoding module input end 5. comprise the MiniPCIe golden finger interface 1. with the lpc bus interface 2..As shown in Figure 2,8,10,12,14 of MiniPCIe golden finger interface J1 pin, 16 signal pins link to each other with the 1-5 pin of lpc bus interface J2 respectively, then are connected to 1,2,3,5 of programmable logic device (PLD) U1, on 6 pins.17 of MiniPCIe golden finger interface J1 pin links to each other with the 8th pin with the 7th of row pin J2 respectively with 19 signal pins, then is connected on the 39th and the 37th pin of programmable logic device (PLD) U1.The above-mentioned lpc bus of the present utility model that connected to form is deciphered part.

The serial port bus interface comprises data reception signal EC_RX and data transmitted signal EC_TX.In this example, serial port bus decoding module input end 6. comprise the MiniPCIe golden finger interface 1. with the serial port bus interface 3..As shown in Figure 2, the 49th of MiniPCIe golden finger interface J1 links to each other with the 11st pin with the 10th of serial port bus interface J2 respectively with 51 signal pins, then is connected on the 5th and the 6th signal pins of microprocessor U2.The above-mentioned serial port bus of the present utility model that connected to form is deciphered part.

The I2C bus interface comprises clock signal SCL and data-signal SDA.In this example, the input 7. of I2C bus decoding module be the I2C bus interface 4..As shown in Figure 2, the 2nd of I2C bus interface J3 the is connected with the 13rd signal pins with the 11st of microprocessor U2 respectively with 3 signal pins.The above-mentioned I2C bus of the present utility model that connected to form is deciphered part.

This example adopts 2 seven segment digital tubes as showing output.As shown in Figure 2, the 2-5 of charactron LDE1 and LDE2 and 8-10 pin be not for to be connected to 22,23 of programmable logic device (PLD) U1, and 25-28 on 31-35 and the 42-44 pin, has formed display part of the present utility model.

Other auxiliary connection comprises that power supply connects: 3V3, and LED_VDD, GND is connected with charactron current-limiting resistance R1.

From above-mentioned description as can be known, programmable logic device (PLD) has been adopted in realization of the present utility model, microprocessor, the components and parts such as charactron and contact pin.Because the model of these components and parts is numerous, any those skilled in the art of being familiar with all can find the components and parts of replacement easily, thereby change the pin connecting method between above-mentioned each components and parts.So; the utility model is not limited to above-mentioned embodiment; any simple modification that any those skilled in the art of being familiar with do above-mentioned enforcement in based on technical solutions of the utility model, equivalent variations and replacement all belong within the protection domain of the present utility model.

Claims

1. main board for notebook computer diagnostic card of supporting four kinds of interfaces, it comprises the MiniPCIe golden finger interface, the lpc bus interface, the serial port bus interface, the I2C bus interface reaches the lpc bus decoding module that links to each other with it, serial port bus decoding module, I2C bus decoding module, show decoding module and display module, it is characterized in that: the MiniPCIe golden finger interface is connected to lpc bus interface and serial port bus interface, then be connected respectively to its corresponding lpc bus decoding module and serial port bus decoding module, the I2C bus interface is connected to I2C bus decoding module, the output of each bus decoding module shows that as the input that shows decoding module the output of decoding module is connected to display module.

2. a kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces according to claim 1 is characterized in that: described lpc bus decoding module adopts programmable logic device (PLD) or microprocessor to receive the lpc bus data.

3. a kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces according to claim 1 is characterized in that: described serial port bus decoding module adopts microprocessor or programmable logic device (PLD) to receive the serial port bus data.

4. a kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces according to claim 1 is characterized in that: described I2C bus decoding module adopts microprocessor or programmable logic device (PLD) to receive the I2C bus data.

5. a kind of main board for notebook computer diagnostic card of supporting four kinds of interfaces according to claim 1 is characterized in that: described display module adopts charactron or liquid crystal display to show.