CN205540692U

CN205540692U - Case of exempting from to start shooting updates intel management engine firmware circuit

Info

Publication number: CN205540692U
Application number: CN201620083875.7U
Authority: CN
Inventors: 周远清
Original assignee: Shenzhen Zhiruitong Technology Co Ltd
Current assignee: SHENZHEN ZHIRUITONG TECHNOLOGY CO., LTD.
Priority date: 2016-01-28
Filing date: 2016-01-28
Publication date: 2016-08-31
Anticipated expiration: 2026-01-28

Abstract

The utility model discloses a case of exempting from to start shooting updates intel management engine firmware circuit, including reset key and CPLD controller, be provided with first port and second port on the CPLD controller, be provided with the renewal control pin who updates ME BIOS on the south bridge of computer mainboard, the reset key is connected through first port and CPLD controller electricity, and the CPLD controller passes through the second port and update the control pin electricity to be connected, when renewal control pin was the high level, the south bridge got into the ME BIOS state that updates, when renewal control pin was the low level, the south bridge was the normal mode state. Long when press the reset key, the machine is established on, by cable to CPLD controller control second port output high level, and the south bridge detects that to update control pin be the high level, loosens the reset key behind the entering renewal ME BIOS state, the electricity is gone up again in the outage after updating the completion, and the CPLD controller is through the 2nd port control output low level. The utility model discloses when renewal control pin was the low level, the south bridge was the CNNP1 state.

Description

Exempt from case renewal of starting shooting intel Management engine firmware circuitry

Technical field

The utility model relates to intel mother board technologies field, particularly relates to one and exempts from case renewal intel management engine firmware circuitry of starting shooting.

Background technology

Computer main board intel adds management engine function at south bridge, management engine firmware produces the most therewith, BIOS is the abbreviation of Basic Input Output System, it is one group and is cured in computer the program on a rom chip on mainboard, self-check program and system self-triggered program after the program of the most important basic input and output of its in store computer, start, it can read-write system is arranged from CMOS specifying information, management engine firmware and BIOS be wrapped together, referred to as ME BIOS in industry.Usually needing to be set to high level when renewal is controlled pin HAD_SDA at computer main board off-mode S5 updating ME BIOS when, enter and update ME BIOS state, under normal mode, renewal controls pin HAD_SDA and is defaulted as low level.At present; in order to update ME BIOS; the contact pin of two pin would generally be made in computer main board; one pin of contact pin connects the standby voltage of 3.3V; another pin connects renewal and controls pin HAD_SDO; when needs update ME BIOS, contact pin connects jump cap short circuit, make renewal control pin HAD_SDO and be set to high level.

But, owing to this contact pin is arranged on above computer main board, and computer main board can load in cabinet, when needing to update ME BIOS, it is often necessary to take cabinet apart and remove this contact pin of short circuit, is restored by cabinet after having updated again.Which operates to waste time and energy, if the operation of amateur occurrences in human life, it is impossible to being quickly found out this contact pin, operation more bothers.

Utility model content

For weak point present in above-mentioned technology, the utility model provides a kind of simple in construction, easy to operate case of exempting to start shooting to update intel management engine firmware circuitry.

In order to achieve the above object, the utility model one exempts from case renewal intel management engine firmware circuitry of starting shooting, including reset key and CPLD controller, described CPLD controller is provided with the first port and the second port, the south bridge of computer main board is provided with the renewal control pin updating ME BIOS；Described reset key is electrically connected with CPLD controller by the first port, and described CPLD controller is electrically connected with updating control pin by the second port；When described renewal control pin is high level, south bridge enters and updates ME BIOS state；When described renewal control pin is low level, south bridge is normal mode state.

Wherein, this circuit also includes buzzer, and described CPLD controller is additionally provided with the 3rd port, and described CPLD controller is electrically connected with buzzer by the 3rd port；Length is by described CPLD controller after reset key by the 3rd port two high impulses of output, and buzzer rings two sound after receiving two high impulses.

Wherein, the south bridge of computer main board being additionally provided with and restarts pin, described reset key electrically connects with restarting pin.

Wherein, the length of described reset key is temporally 5 seconds, and each high-pulse widths of described 3rd port output is 1 second, and having updated the time that rear power-off powers on again is 10 seconds.

The beneficial effects of the utility model are:

nullCompared with prior art，Start case of exempting from of the present utility model updates intel management engine firmware circuitry，Reset key is electrically connected with CPLD controller by the first port，CPLD controller is electrically connected with updating control pin by the second port，When needing to update ME BIOS，After powering on，Under computer main board off-mode，When length is by reset key，After reset key inputs a lasting low level by the first port to CPLD controller，CPLD controller controls the second port output high level，It is high level that south bridge detects that renewal controls pin，Enter and unclamp reset key after updating ME BIOS state，Can realize updating ME BIOS，After renewal completes, power-off powers on again，CPLD controller passes through the second port controlling output low level，It is low level that south bridge detects that renewal controls pin，Revert to normal mode state.Start case of exempting from of the present utility model updates intel management engine firmware circuitry, it is not necessary to takes cabinet apart and goes short circuit to update control pin, saves the work opening the case and restoring cabinet, time-consuming, and, cabinet is outer without additionally increasing button, the standardization of holding cabinet.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that the utility model exempts from start case renewal intel management engine firmware circuitry.

Main element symbol description is as follows:

1, reset key 2, CPLD controller

3, south bridge 4, buzzer.

Detailed description of the invention

In order to more clearly state the utility model, below in conjunction with the accompanying drawings the utility model is further described.

Refering to Fig. 1, start case of exempting from of the present utility model updates intel management engine firmware circuitry, including reset key 1 and CPLD controller 2, it is provided with the first port I/O_1 and the second port I/O_2 on CPLD controller 2, the south bridge 3 of computer main board is provided with the renewal control pin HDA_SDO updating ME BIOS；Reset key 1 is electrically connected by the first port I/O_1 and CPLD controller 2, and CPLD controller 2 is electrically connected with updating control pin HDA_SDO by the second port I/O_2；When renewal control pin HDA_SDO is high level, south bridge 3 enters and updates ME BIOS state；When renewal control pin HDA_SDO is low level, south bridge 3 is normal mode state.When length is by reset key 1, after reset key 1 inputs a lasting low level by the first port I/O_1 to CPLD controller 2, CPLD controller 2 controls the second port I/O_2 and exports high level, power on start, it is high level that south bridge 3 detects that renewal controls pin HDA_SDO, enters and unclamps reset key 1 after updating ME BIOS state；After renewal completes, power-off powers on again, and CPLD controller 2 controls output low level by the second port I/O_2, and it is low level that south bridge 3 detects that renewal controls pin HDA_SDO.Reset key 1 is the button that computer housing itself carries, and CPLD controller 2 is Complex Programmable Logic Device, i.e. CPLD are a kind of users according to each needing and the digital integrated electronic circuit of constitutive logic function voluntarily.

nullCompared with prior art，Start case of exempting from of the present utility model updates intel management engine firmware circuitry，Reset key 1 is electrically connected by the first port I/O_1 and CPLD controller 2，CPLD controller 2 is electrically connected with updating control pin HDA_SDO by the second port I/O_2，When needing to update ME BIOS，When length is by reset key 1，After reset key 1 inputs a lasting low level by the first port I/O_1 to CPLD controller 2，Power on start，CPLD controller 2 controls the second port I/O_2 and exports high level，It is high level that south bridge 3 detects that renewal controls pin HDA_SDO，Enter and unclamp reset key 1 after updating ME BIOS state，Can realize updating ME BIOS，After renewal completes, power-off powers on again，CPLD controller 2 controls output low level by the second port I/O_2，It is low level that south bridge 3 detects that renewal controls pin HDA_SDO，Revert to normal mode state.Start case of exempting from of the present utility model updates intel management engine firmware circuitry, it is not necessary to takes cabinet apart and goes short circuit to update control pin HDA_SDO, saves the work opening the case and restoring cabinet, time-consuming, and, cabinet is outer without additionally increasing button, keeps the standardization of cabinet.

In the present embodiment, this circuit also includes buzzer 4, and CPLD controller 2 is additionally provided with the 3rd port I/O_3, and CPLD controller 2 is electrically connected with buzzer 4 by the 3rd port I/O_3；Length exports two high impulses by CPLD controller after reset key 12 by the 3rd port I/O_3, and buzzer 4 rings two sound after receiving two high impulses.CPLD controller 2 inputs two high impulses by the 3rd port I/O_3 to buzzer 4, and buzzer 4 rings two sound after receiving two high impulses, reminds renewal to control pin HDA_SDO and has been set to high level, and now operating personnel can unclamp reset key 1.Certainly; this case is not limited to CPLD controller 2 and exports two high impulses by the 3rd port I/O_3; it can also be the high impulse of three high impulses or other quantity; as long as operating personnel can be reminded to update control pin HDA_SDO be set to the embodiment of high level; it is simple deformation and the conversion of this case, falls in the range of this case protection.

In the present embodiment, the south bridge 3 of computer main board being additionally provided with and restarts pin RESET, reset key 1 electrically connects with restarting pin RESET.Computer main board, under open state, is pressed reset key 1 and can be realized computer main board and restart.

In the present embodiment, the length of reset key 1 is temporally 5 seconds, and each high-pulse widths of the 3rd port I/O_3 output is 1 second, and having updated the time that rear power-off powers on again is 10 seconds.After renewal ME BIOS completes, pulling out power supply, after waiting 10 seconds, then power on, the condition that now CPLD controller 2 is arranged disappears immediately, and therefore updating control pin HDA_SDO is the low level under normal mode；The length of reset key 1 is temporally 5 seconds, the most persistently within 5 seconds, gives CPLD controller 2 input low level；And the width of high impulse is 1 second, and having the low pulse of 1 second between two high impulses, high impulse is 5 seconds with the Volume Composition of low pulse, therefore, after length reaches 5 seconds by the time of reset key 1, buzzer 4 just rings two sound, represents renewal control pin HDA_SDO and has been set to high level.Certainly, the time powered on again after the time of input low level, the quantity of high impulse and power-off is controlled by the programming in logic in CPLD controller 2, operating personnel can also change the programming of above-mentioned three and arrange, it is achieved the length wanted temporally, time of powering on again after high-pulse widths and power-off.

Only several specific embodiments of the present utility model disclosed above, but the utility model is not limited to this, and the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.

Claims

1. exempt from case renewal intel management engine firmware circuitry of starting shooting for one kind, it is characterised in that include reset key and CPLD controller, described CPLD controller is provided with the first port and the second port, the south bridge of computer main board is provided with renewal ME The renewal of BIOS controls pin；Described reset key is electrically connected with CPLD controller by the first port, and described CPLD controller is electrically connected with updating control pin by the second port；When described renewal control pin is high level, south bridge enters and updates ME BIOS state；When described renewal control pin is low level, south bridge is normal mode state.

Start case of exempting from the most according to claim 1 updates intel management engine firmware circuitry, it is characterised in that this circuit also includes buzzer, and described CPLD controller is additionally provided with the 3rd port, and described CPLD controller is electrically connected with buzzer by the 3rd port；Length is by CPLD controller after reset key by the 3rd port two high impulses of output, and buzzer rings two sound after receiving two high impulses.

Start case of exempting from the most according to claim 1 updates intel management engine firmware circuitry, it is characterised in that being additionally provided with on the south bridge of computer main board and restart pin, described reset key electrically connects with restarting pin.

Start case of exempting from the most according to claim 2 updates intel management engine firmware circuitry, it is characterized in that, the length of described reset key is temporally 5 seconds, and each high-pulse widths of described 3rd port output is 1 second, and having updated the time that rear power-off powers on again is 10 seconds.