Utility model content
The utility model provides a kind of main board failure display circuit of soaring, be intended to solve the POST card that existing X86 mainboard platform uses and can not be applied to the mainboard platform of soaring, and the existing mainboard platform of soaring shows that faulty circuit used Serial Port Line to connect and bother very much and need other computers to coordinate the problem that could debug the fault demonstrating.
In order to solve the problems of the technologies described above, the utility model is achieved in that a kind of main board failure display circuit of soaring, be connected with the mainboard BIOS chip of soaring, described in the main board failure display circuit of soaring comprise:
Golden finger connector;
By described golden finger connector with described in the mainboard BIOS chip of soaring be connected, the mainboard BIOS chip of soaring described in reading system start-up course sends to information in the serial ports row decoding of going forward side by side and latchs the decoding latch module of processing and exporting;
Be connected the seven segment numerical display module fault of the described mainboard of soaring being shown according to the output signal of described decoding latch module with the output terminal of described decoding latch module.
In the utility model, decoding latch module reads by golden finger connector the mainboard BIOS chip of soaring and sends to information in the serial ports row decoding of going forward side by side and latch processing, by seven segment numerical display module, the data after processing are shown, can show the abort situation of the mainboard of soaring, then user debugs fault according to demonstration result, solved and adopted Serial Port Line to connect the problem of trouble, and do not need other computers to be used in conjunction with, the main board failure display circuit simplicity of design, reliable and stable of soaring that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with specific embodiment, specific implementation of the present utility model is described in detail:
Fig. 1 shows the modular structure of the main board failure display circuit of soaring that the utility model embodiment provides, and for convenience of explanation, only lists the part relevant to the utility model embodiment.
As the utility model one embodiment, the main board failure display circuit of soaring that the utility model provides, is connected with the mainboard BIOS chip U1 that soars, and this main board failure display circuit of soaring comprises:
Golden finger connector MINICARD;
By golden finger connector MINICARD, be connected with the mainboard BIOS chip U1 that soars, the mainboard BIOS chip U1 that soars in reading system start-up course sends to information in serial ports to carry out decoding and latchs the decoding latch module 101 of processing and exporting;
Be connected the seven segment numerical display module 102 fault of the mainboard of soaring being shown according to the output signal of decoding latch module 101 with the output terminal of decoding latch module 101.
As the utility model one embodiment, the main board failure display circuit of soaring also comprises:
Be connected the indicating module 103 that the duty of the main board failure display circuit of soaring is indicated with the 3V voltage output end of the mainboard BIOS chip U1 that soars;
Power end is connected with the power end of decoding latch module 101, the filtration module 104 that the voltage of input decoding latch module 101 is carried out to filtering.
Fig. 2 shows the circuit structure of the main board failure display circuit of soaring that the utility model embodiment provides, and for convenience of explanation, only lists the part relevant to the utility model embodiment.
As the utility model one embodiment, the voltage input end V3_SYS1 of golden finger connector MINICARD is connected with the 3V voltage output end V3 of the mainboard BIOS chip U1 that soars, the data receiver DEBG_URXD of golden finger connector MINICARD is connected with the signal output part VOUT of the mainboard BIOS chip U1 that soars, and the data sending terminal DEBG_UTXD of golden finger connector MINICARD is connected with the data receiver RXD of decoding latch module 101.
As the utility model one embodiment, decoding latch module 101 comprises:
Chip U2 is latched in the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, quadrielectron R4, the first capacitor C 1 and decoding;
The power end VCC of chip U2 is latched in decoding and the voltage output end V3_SYS2 of golden finger connector MINICARD is connected, the high position that chip U2 is latched in decoding shows that output terminal DGH shows that with high-order in seven segment numerical display module 102 control end DGHJ_R is connected by the first resistance R 1, the low level that chip U2 is latched in decoding shows that output terminal DGL shows that by the second resistance R 2 and low level in seven segment numerical display module 102 control end DGLJ is connected, the reset terminal RST that chip U2 is latched in decoding is connected with the voltage output end V3_SYS2 of golden finger connector MINICARD by the 3rd resistance R 3, the first capacitor C 1 is connected to decoding and latchs between the reset terminal RST and ground of chip U2, the data receiver RXD of chip U2 is latched in decoding and the data sending terminal DEBG_UTXD of golden finger connector MINICARD is connected, the data output end TXD of chip U2 is latched in decoding and the data receiver DEBG_URXD of golden finger connector DEBG_UTXD is connected, the first to the 7th digital display tube pin LED_A of chip U2 is latched in decoding, LED_B, LED_C, LED_D, LED_E, LED_F, LED_G is connected with seven segment numerical display module, the earth terminal GND ground connection of chip U2 is latched in decoding.
As the utility model one embodiment, seven segment numerical display module 102 comprises the first seven segment numerical display tube UD1 and the second seven segment numerical display tube UD2;
The first seven segment numerical display tube UD1 is high-order digital display tube, and the second seven segment numerical display tube UD2 is low level digital display tube, the first pin to the seven pin A of the first seven segment numerical display tube UD1, B, C, D, E, F, G respectively with the first pin to the seven pin A of the second seven segment numerical display tube, B, C, D, E, F, G connects, the high position that the octal AC1 of the first seven segment numerical display tube UD1 and the 9th pin AC2 are connected to seven segment numerical display module 102 shows control end DGHJ_R, the low level that the octal AC1 of the second seven segment numerical display tube UD2 and the 9th pin AC2 are connected to seven segment numerical display module 102 shows control end DGLJ, the first pin A of the first seven segment numerical display tube UD1, crus secunda B, the 6th pin F and the 7th pin G latch respectively the first digital display tube pin LED_A of chip U2 with decoding, the second digital display tube pin LED_B, the 6th digital display tube pin LED_F and the 7th digital display tube pin LED_G connect, the tripod C of the first seven segment numerical display tube UD1, the 4th pin D and the 5th pin E latch respectively the 3rd digital display tube pin LED_C of chip U2 with decoding, the 4th digital display tube pin LED_D and the 5th digital display tube pin LED_E connect.
As the utility model one embodiment, indicating module 103 comprises the 4th resistance R 4 and light emitting diode D1;
The 4th resistance R 4 and light emitting diode D1 are connected in series between the 3V voltage output end V3 and ground of the mainboard BIOS chip U1 that soars.
As the utility model one embodiment, filtration module 105 comprises:
The second capacitor C 2, the 3rd capacitor C 3 and the 4th capacitor C 4;
The second capacitor C 2 and the 3rd capacitor C 3 and the 4th capacitor C 4 are connected in parallel between the voltage output end V3_SYS2 and ground of golden finger connector MINICARD.
The principle of work of the main board failure display circuit of soaring below the utility model embodiment being provided describes.
After circuit start, by observing the pilot lamp (light emitting diode D1) of indicating module 103, whether light to judge that whether the main board failure display circuit of soaring is working properly, after light emitting diode D1 normal circuit, decoding is latched chip U2 and by golden finger connector MINICARD, from the mainboard BIOS chip U1 that soars, is read the information sending in serial ports and carry out decoding and latch processing, then export to the first seven segment numerical display tube UD1 and the second seven segment numerical display tube UD2 in seven segment numerical display module 102, controlling the signal that the first seven segment numerical display tube UD1 and the second seven segment numerical display tube UD2 latch chip U2 output to decoding shows, the connotation that user gives POSTCODE different in error code table as an addition according to the result contrast manufacturer showing is come decision problem place, then debug, deal with problems.
The utility model also provides a kind of main board failure display card of soaring, and this main board failure display card of soaring comprises the above-mentioned main board failure display circuit of soaring.
In the utility model embodiment, decoding latch module reads by golden finger connector the mainboard BIOS chip of soaring and sends to information in the serial ports row decoding of going forward side by side and latch processing, by seven segment numerical display module, the data after processing are shown, can show the abort situation of the mainboard of soaring, then user debugs fault according to demonstration result, solved and adopted Serial Port Line to connect the problem of trouble, and do not need other computers to be used in conjunction with, the main board failure display circuit simplicity of design, reliable and stable of soaring that the utility model embodiment provides.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.