CN201057555Y - Improved mainboard condition detecting system - Google Patents

Abstract

The utility model provides a modified mainboard status detection system, comprising a hardware control circuit and a corresponding software program. The hardware circuit controls a digital tube display through an IO chip, a triode and a pull-up resistor. To cooperate the hardware, corresponding codes are added into the original part of BOIS files, so users of different levels can adopt different status tables to satisfy different demands of users, and continuously changed digits or characters are employed to trace the mainboard change status to be conveniently used and understood by users, especially normal users. The utility model eliminates the decode chip of traditional detection system, thus cutting down the cost of products.

Description

Improved mainboard state detecting system

Technical field

The utility model relates to the device of a kind of detecting and indication mainboard state, especially can the detecting master plate start-up course in the device of each state.

Background technology

At present, known mainboard state detecting system adopts the hardware decoding, uses an application-specific integrated circuit chip that is connected on PCI bus or the LPC bus to decode, then with the demonstration of the output control charactron of this chip respective pins.

If the IC decoding chip is connected on the PCI bus, its circuit theory diagrams as shown in Figure 1, decode by U3500 demoder among the figure, then by its 44～52 and 56～60 pin output signal, driving LED shows, reaches the purpose with different numeric representation mainboard different conditions in the computer starting process.

If the IC decoding chip is connected on the LPC bus, its circuit theory diagrams by U25 decoder decode among the figure, pass through the 1st, 3～9 and the 11st pin of U25 as shown in Figure 2 then, the driving charactron shows, to reach the purpose of following the tracks of mainboard each state in the computer starting process.

Above-mentioned two kinds of implementations have the shortcoming of the following aspects:

1, uses the application-specific integrated circuit chip in the circuit, used XC9572-5VQ64C among Fig. 1, used the AK2001 chip among Fig. 2.These two kinds of chip prices all compare expensive, like this, have improved the cost of entire product.

2, because in use, above-mentioned two kinds of real modes are to be connected on PCI or the lpc bus, and this has taken the resource of computer system bus, can bring bad influence for the expansion of computing machine.

3, above-mentioned two kinds of implementations all are to represent the different conditions of mainboard in the computer starting process with discontinuous two sexadecimal number codes that application-specific integrated circuit decodes out, and these codes only are applicable to professional and technical personnel's technical solution problem, for the general user, be difficult to understand its implication, this uses to the user undoubtedly and brings many difficulties.

Summary of the invention

The problem and shortage that exists at the mainboard state detecting system of above-mentioned existing employing hardware decoding process, the design the purpose of this utility model is to provide a kind of more simple and practical for the user, conveniently understand the new device of each state of mainboard in the computer starting process, and simplified hardware circuit, improve the utilization factor of IO chip port, reduced the cost of mainboard state detecting system.

The technical scheme that the utility model adopted is:

1), cancels original special-purpose decoding IC chip, with the demonstration of GPIO port controlling charactron idle on the mainboard IO chip for the workout cost problem.

The specific design scheme is: on hardware connected, the pin of GPIO port was connected to the base stage control end of eight transistors, and triode shows by current-limiting resistance driving LED charactron.Further, can show by driven LED charactron, increased by eight pull-up resistors and a power supply input port in order to make triode.Aspect software, by adding corresponding code in original bios program, the output state (0 or 1) of the GPIO output port by control IO chip is with the display digit or the character of control LED charactron.

2) for the utility model is easily understood, be user-friendly to and understand the state of mainboard in the computer starting process, the utility model adopts continuous numeral or letter (as 1～9), the state that each numeral is different.From start, go to maximum or go to hour from minimum when numeral from maximum, represent that the startup of mainboard finishes fully, pilot lamp extinguishes, and like this, the general user can understand each duty of mainboard simply.

3) LED charactron display mode adopts the differentiated control system, can be divided into: standard level (Normal), player's level (advanced), three ranks of developer's level (Developer).The design proposal at initial stage is only enabled standard level and two ranks of player's level, and different ranks is used the tabulation of different conditions sign indicating number.

The utility model is by drawing 8 lines from the GPIO port pinout of IO chip free time, be connected to the transistor base that drives charactron then, and in conjunction with the demonstration of software control charactron accordingly, and the state that charactron shows is continuous numeral or character, like this, make full use of IO chip idle pin, improved the utilization factor of IO chip pin.Because cancelled original special-purpose decoding IC chip in the circuit, and directly be connected to triode with the IO chip pin, after triode amplified, output control charactron showed, had simplified hardware circuit, had reduced the cost of device.Adopt continuous numeral or character to represent each state of mainboard in the computer starting process, made things convenient for user's understanding and use, the display mode of timing formula in certain sequence brings high-tech fashion new experience to the user simultaneously.

Description of drawings

In conjunction with following accompanying drawing the utility model is done detailed explanation.

Fig. 1 connects the DEBUG circuit for lamp schematic diagram of pci bus for decoding chip;

Fig. 2 connects the DEBUG circuit for lamp schematic diagram of lpc bus for decoding chip;

Fig. 3 is circuit theory diagrams of the present utility model;

Fig. 4 is the basic flow sheet of the program of control DEBUG lamp demonstration.

Embodiment

Circuit theory diagrams of the present utility model as shown in Figure 3, utilize the 120th～No. 128 pin output control signal of IO chip, be connected to the base stage of Q60～Q67 triode, and the pull-up resistor RU1～RU8 that is connected to by 4.7K in base stage connects the 3V direct supply, can both driving LED show the grounded emitter of triode, collector output amplifying signal with the voltage that guarantees the output of IO chip, be connected on the LED charactron by resistance R 11～R18, be used to control the LED charactron and show.3 and 8 pins of LED charactron connect the 5V direct supply.

In 8 output ports of IO chip, wherein 7 is 7 segment encodes that general GPIO mouth connects LED, and the another port connects the radix point position.The port that connects radix point can be received on the more special GPIO mouth, the utility model adopts No. 120 pin of IO chip to link to each other with the radix point position of charactron, special Presentation Function when being implemented in some special state, this function can make things convenient for later function expansion, enter sleep during duty as computer from normal operating conditions, show that radix point ceaselessly glimmers.

As previously mentioned, the display mode of LED charactron adopts the differentiated control system, can be divided into: standard level (Normal), player's level (Advanced), three ranks of developer's level (Developer).The parameter-definition tabulation that different stage uses is different.Parameter-definition is divided into the BOOT stage according to computing machine state in start-up course, POST stage and finishing the stage.

The BOOT stage:

D represents to detect internal memory;

E represents the hardware primary starting, starts hardware and comprises RAM, buffer memory, basic chips register;

F represents to detect the CMOS read write attribute.

The POST stage:

Select different parameter-definition tabulations for use according to user class.

For the standard level user, for example

9: represent pressure equipment to enter the initializing set state, keyboard feature detects, and opens the interface of keyboard and other equipment rooms.

For developer's level (Developer) user, the code display mode is more detailed, for example

9: pressure equipment enters the initializing set state, comprises the CMOS timer, operation processing unit, dma controller, interruptable controller or the like.

9+1: some carries out initialized SuperIO chip in can't be before POST initialization.

9+2: the cleaning internal memory, simultaneously with in CMOS setting, the text display data graftabl.As be in the CMOS that CMOS checksum state then is written into and be set at factory-default.

9+3: cls and removing CMOS error flag.

9+4: the early stage initialization of keyboard.

9+5: keyboard feature detects, and opens the interface of keyboard and other equipment rooms.

For the numeral or the above-mentioned various states of character representation that can show with the LED charactron, LED adopts 10+5 level display mode, for example:

9 expression LED show 9;

9+1 represents that LED shows 9 earlier, shows and goes up line;

9+2 represents that LED shows 9 earlier, line in showing again;

9+3 represents that LED shows 9 earlier, shows underscore again;

9+4 represents that LED shows 9 earlier, shows and goes up underscore;

9+5 represents to show 9 earlier, shows the upper, middle and lower line again.

In addition, in order to show more state, show that used suborder character can increase, and promptly can upgrade to 10+6,10+7..... or the like from now on.

Finishing stage D EBUG LED will extinguish.Promptly do not show any numeral or character.

Software implementation method is to add corresponding code setting user class and the demonstration of control LED digital lamp in bios program.

Specific implementation method basic flow sheet as shown in Figure 4, wherein the program code of port initialization part is as follows:

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mov dx，02Eh ；Superio_Enter_Config?Start

mov al，087h

out dx，al

nop

nop

out dx，al ；Superio?Enter?Config?End

mov dx，02Eh ；Choose?Dev?07h?Start

mov al，07h ；Choose?Dev?Config?register(07h)

out dx，al

newiodelay ；IO?delay

inc dx

out dx，al ；Set?Dev?07h

newiodelay ；Choose?Dev?07h?End

mov dx，02Eh ；Set?Ouput?Val?ue?Start

mov al，0F1h ；Output?Value?register

out dx，al

newiodelay

inc dx

mov al，071h ；Mumber?decode*****

out dx，al

newiodelay ；Set?Ouput?Value?End

mov dx，02Eh ；Superio_Exit?Config?Start

mov al，0AAh

out dx，al ；Superio_Exit_Config?End

^{* * * *}Annotate: this value is according to the decoding tabulation of compiling at different circuit and fixed.

The utility model is by enabling the idle port of IO chip, and adds corresponding program code in the BIOS part source program, makes that mainboard arrangement for detecting circuit structure is simpler, reduced cost of products, improved the utilization factor of chip port.And adopt the differentiated control pattern, be applicable to that the user of different stage uses.The utility model adopts continuous numeral or character to show the state of mainboard in the process of computer starting, and therefore, very convenient user uses and understands.

Along with modern market competition is more and more fierce, reduce the cost of product, and the demand that can satisfy the user is the basic demand of product design and production as far as possible.And the utility model design proposal develops according to this requirement just, have strong practicality.

Claims (4)

1. improved mainboard state detecting system, in computer main board, IO chip, triode, resistance and LED wick sheet are connected, and it is characterized in that: IO chip GPIO mouth is connected with the base stage of triode, the collector of triode by resistance after with being connected of LED wick sheet.

2. improved mainboard state detecting as claimed in claim 1 system is characterized in that the base stage of 8 triodes is connected with 8 pins of IO chip GPIO mouth respectively.

3. improved mainboard state detecting as claimed in claim 1 system is characterized in that, is connected to pull-up resistor in the base stage of triode.

4. improved mainboard state detecting as claimed in claim 1 system is characterized in that, the collector of 8 triodes is connected with the corresponding pin of LED wick sheet respectively after by 8 resistance.

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