CN212906143U

CN212906143U - Device, computer mainboard and equipment of conveniently changing EC

Info

Publication number: CN212906143U
Application number: CN202022065223.XU
Authority: CN
Inventors: 杨超
Original assignee: Shenzhen Jinglin Zhichuang Technology Co ltd
Current assignee: Shenzhen Jinglin Zhichuang Technology Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-06
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a device, a computer mainboard and equipment which are convenient for replacing EC, wherein the device comprises a CPU and an EC; the EC comprises a power management PMU chip for managing power supply and an MCU chip for processing control signals; the CPU accesses the IO port of the MCU chip through the universal serial bus and performs parallel read-write operation; the power management chip and the CPU carry out information interaction management power supply through a universal serial bus; compared with the prior art, the utility model adopts the universal serial bus to connect the CPU and the EC for communication connection, the universal serial bus is a wide interface standard, and the communication protocol can not bind the CPU and the EC internal software program; meanwhile, the internal functions of the EC are modularly processed and divided into two independent chips, the binding relationship between the EC and the BIOS is released, and when the EC needs to be functionally adjusted, the programs of related modules in the EC can be directly replaced; the BIOS program corresponding to the CPU does not need to be modified at the same time; the development is convenient and the development cost is reduced.

Description

Device, computer mainboard and equipment of conveniently changing EC

Technical Field

The utility model discloses computer main control board field specifically is a conveniently change device, computer motherboard and the equipment of EC.

Background

The CPU is the operation core of the whole notebook computer, and the performance strength of the CPU determines the overall performance of the notebook computer to a great extent; more and more functional modules, such as a PCI-E controller, a memory controller and the like, are integrated in the CPU, so that the efficiency of the CPU is higher, and the control work of more functional modules in a computer is born.

EC is also an important chip on a computer mainboard and has irreplaceable function in the starting process; the intelligent control system is not only responsible for controlling hardware equipment such as a keyboard, a touch panel and a status indicator lamp, but also undertakes part of power management work.

In the existing main control board, the connection mode of a CPU and an EC adopts an LPC bus; the communication protocol corresponding to the bus depends on the binding of the CPU and the program software in the EC; that is to say, the existing main control board must replace the CPU or newly inject a new program into the original CPU when the EC is replaced; meanwhile, the function of the EC which is frequently damaged is on the part for controlling the IO port, and other functions are generally not damaged; the traditional EC replacement mode is very troublesome in process and high in replacement cost.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the technology, the utility model provides a device, a computer mainboard and equipment which are convenient for replacing EC, the EC and the CPU are connected through a universal serial bus, and simultaneously, the modularized processing is carried out on the internal functions of the EC, the binding relationship between the EC and the CPU is removed, when the EC is damaged, the damaged module in the EC can be replaced; meanwhile, the CPU does not need to be replaced and the program does not need to be re-injected.

In order to achieve the above purpose, the utility model provides a device which is convenient for replacing EC, comprising a CPU and an EC; the EC comprises a power management chip for managing a power supply and an MCU chip for processing a control signal; the CPU accesses the IO port of the MCU chip through the universal serial bus and performs parallel read-write operation; and the power management chip and the CPU carry out information interaction management power supply through a universal serial bus.

The preferable scheme also comprises a bios rom, wherein a basic input and output system is recorded in the bios rom, and the CPU performs CPU self-detection or sets a basic value of an IO port of the MCU chip after executing all or part of codes in the input and output system; the basic value of the IO port is used for comparing with an externally input control signal to generate a corresponding output signal.

Preferably, the bios ROM is ROM or RAM.

In the preferred scheme, the bios rom is connected with a power management chip through a universal serial bus, and the power management chip is connected with a power supply to acquire the electric quantity information of the power supply and store the information into the bios rom; and the CPU reads the electric quantity information from the bios rom and sends an instruction to the EC to regulate and control the electric quantity of the power supply.

According to the preferable scheme, the MCU chip comprises an input IO port and an output IO port, wherein the input IO port is used for receiving input signals or touch input signals of an external keyboard and a mouse, and the output IO port is used for transmitting the signals received by the input IO port to the CPU.

In a preferred embodiment, the power management chip is a PMU chip.

In a preferred scheme, the CPU comprises an arithmetic unit and a controller; the arithmetic unit reads the data of the MCU chip or the power management chip through the universal serial bus, transmits the data to the controller, and feeds back a read signal through the controller.

Preferably, the CPU further comprises a CPU bus for connecting the external electronic components and the arithmetic unit or the controller.

In order to realize the purpose, the utility model also provides a computer motherboard, be equipped with on the mainboard the convenient device of changing EC.

In order to achieve the above object, the present invention further provides a computer device, wherein the computer motherboard is installed.

The utility model has the advantages that: the utility model comprises a CPU and an EC; the EC comprises a power management chip for managing a power supply and an MCU chip for processing a control signal; the CPU accesses the IO port of the MCU chip through the universal serial bus and performs parallel read-write operation; the power management chip and the CPU carry out information interaction management power supply through a universal serial bus; compared with the prior art, the utility model adopts the universal serial bus to connect the CPU and the EC for communication connection, the universal serial bus is a wide interface standard, and the communication protocol can not bind the CPU and the EC internal software program; meanwhile, the internal functions of the EC are modularly processed and divided into two independent chips, the binding relationship between the EC and the CPU is released, and when the EC is damaged, the damaged module in the EC can be directly replaced; the CPU does not need to be replaced or the program does not need to be re-injected at the same time; not only is convenient, but also reduces the replacement cost.

Drawings

FIG. 1 is a prior art block diagram;

fig. 2 is a block diagram of the present invention.

The main element symbols are as follows:

2. and (6) an EC chip.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

As described in the background, prior art EC and CPU communicate via the LPC bus; binding the CPU and the program software inside the EC; when the EC is replaced, the CPU needs to be replaced again or a new program needs to be written into the CPU again; meanwhile, the function of the EC which is frequently damaged is on the part for controlling the IO port, and other functions are generally not damaged; direct replacement of EC results in waste and increased cost of EC.

Based on the above problems, the utility model provides a device for conveniently replacing EC, which comprises a CPU and an EC; the EC comprises a power management chip for managing a power supply and an MCU chip for processing a control signal; the CPU accesses the IO port of the MCU chip through the universal serial bus and performs parallel read-write operation; and the power management chip and the CPU carry out information interaction management power supply through a universal serial bus.

In this embodiment, referring to fig. 1 and fig. 2, EC is an important chip next to CPU on the notebook computer motherboard, and its exterior is mainly connected to hardware devices such as chipset, keyboard, and touch pad for information transmission and control. In addition, the EC also undertakes part of the power management work of the computer system; the conventional EC is composed of an EC chip 2 and an EC ROM chip for storing a readable and writable program; the EC ROM chip is responsible for logic processing and operation of signals transmitted by external equipment; such as a key signal, a power supply capacity signal, a mouse click signal, etc.; the EC ROM chip processes the signals and then sends an execution instruction to a CPU or an external device by the EC chip 2; namely, separating a hardware part from a software part; all functional programs of the EC are integrated in an EC ROM chip; in practical use, the EC function which is easy to damage is the control part of an external keyboard or a mouse, and the function of the power management part is difficult to damage; when the control function of external equipment in the EC is damaged, the EC ROM chip needs to be replaced in order to bind a new CPU and a program in the new EC ROM chip; the CPU needs to be replaced again or a new program needs to be injected into the CPU again; not only is the replacement cost high, but also the replacement is very troublesome; since the two would not be able to communicate over the LPC bus if not bonded.

Compared with the prior art, the utility model adopts the universal serial bus to connect the CPU and the EC for communication connection, the universal serial bus is a wide interface standard, and the communication protocol can not bind the CPU and the internal software program of the EC; simultaneously, dividing the internal functions of the EC into two independent chips, namely an MCU chip and a power management chip, according to modular processing, wherein each independent chip integrates software and hardware required for realizing the respective functions; the binding relationship between the EC and the CPU is released, and when the EC is damaged, the damaged module in the EC can be directly replaced; the CPU does not need to be replaced or the program does not need to be re-injected at the same time; not only is convenient, but also reduces the replacement cost.

For example; the external keyboard is invalid; the reason is that when the IO port of the MCU chip is damaged, the MCU chip can be directly replaced; the power management chip does not need to be replaced, and the CPU does not need to be replaced or the program is not required to be injected into the CPU again.

In this embodiment, the method further includes a bios rom, where a basic input/output system is recorded in the bios rom, and the CPU performs CPU self-detection or sets a basic value of an IO port of the MCU chip after executing all or part of codes in the input/output system; the basic value of the IO port is used for comparing with an externally input control signal to generate a corresponding output signal; in this embodiment, the i/o system is a set of programs that are fixed on a bios rom on the motherboard in the computer, and it stores the most important basic i/o programs of the computer, system setup information, power-on self-test program and system boot bootstrap program; the main function of the system is to provide the bottommost and most direct hardware setting and control for the computer; in short, the program is the most basic program arranged on the mainboard; when starting up, the CPU needs to use some or all codes in the system.

In a specific embodiment, the bios ROM is ROM or RAM.

In this embodiment, the bios rom is connected to a power management chip through a universal serial bus, and the power management chip is connected to a power supply to acquire and store electric quantity information of the power supply into the bios rom; and the CPU reads the electric quantity information from the bios rom and sends an instruction to the EC to regulate and control the electric quantity of the power supply.

In this embodiment, the MCU chip includes an input IO port and an output IO port, where the input IO port is used to receive an input signal of an external keyboard or a mouse or a touch input signal, and the output IO port is used to transmit a signal received by the input IO port to the CPU.

In this embodiment, the power management chip is a PMU chip; the PMU chip is a microcontroller for controlling the power supply function of the digital platform; the microchip has many components similar to a general computer, including firmware and software, input/output functions, a timer for measuring a time interval, and an analog-to-digital converter for measuring a voltage of the main battery or power supply; the PMU is one of a few items that remain active even if the computer is completely shut down, powered by a battery backup.

In the present embodiment, the CPU includes an operator and a controller; the arithmetic unit reads the data of the MCU chip or the power management chip through the universal serial bus, transmits the data to the controller, and feeds back a read signal through the controller; the arithmetic unit, the controller and the power management chip or the MCU chip are all connected through a universal serial bus; the CPU also comprises a CPU bus, and the CPU bus is used for connecting external electronic elements and an arithmetic unit or a controller; wherein external electronic component refers to a component other than an EC; such as a register; the CPU bus comprises one or more of DMI bus, LPC bus and universal serial bus; but is not limited thereto.

The utility model also provides a computer mainboard, on which a device for replacing EC conveniently is arranged; wherein the main board is a PCB board; the MCU chip is welded on the mainboard; when the MCU chip is replaced, the original MCU chip is removed and then re-welded.

The utility model provides a computer equipment is one kind can be according to the program operation, handles the electronic equipment of data. The device is composed of hardware and software; the vehicle-mounted device comprises a computer, a mobile phone, a tablet and a belt system; lathing devices with systems, and the like.

The utility model has the advantages that:

1. the utility model adopts the universal serial bus to connect the CPU and the EC for communication, the universal serial bus is a wide interface standard, and the communication protocol can not bind the CPU and the internal software program of the EC; the CPU does not need to be replaced or the program does not need to be re-injected at the same time; not only is convenient, but also reduces the replacement cost.

2. Meanwhile, the internal functions of the EC are modularly processed and divided into two independent chips, the binding relationship between the EC and the CPU is released, and when the EC is damaged, the damaged module in the EC can be directly replaced; and undamaged modules do not need to be replaced, so that the replacement cost is reduced.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. The device for conveniently replacing the EC is characterized by comprising a CPU and the EC; the EC comprises a power management chip for managing a power supply and an MCU chip for processing a control signal; the CPU accesses the IO port of the MCU chip through the universal serial bus and performs parallel read-write operation; and the power management chip and the CPU carry out information interaction management power supply through a universal serial bus.

2. The device for conveniently replacing the EC of claim 1, further comprising a bios rom, wherein a basic input/output system is recorded in the bios rom, and the CPU performs CPU self-detection or sets a basic value of an IO port of the MCU chip after executing all or part of codes in the input/output system; the basic value of the IO port is used for comparing with an externally input control signal to generate a corresponding output signal.

3. The device for facilitating the replacement of ECs as claimed in claim 2, wherein the bios ROM is ROM or RAM.

4. The device for conveniently replacing the EC of claim 2, wherein the bios rom is connected with a power management chip through a universal serial bus, the power management chip is connected with a power supply, and the power information of the power supply is acquired and stored in the bios rom; and the CPU reads the electric quantity information from the bios rom and sends an instruction to the EC to regulate and control the electric quantity of the power supply.

5. The device of claim 1, wherein the MCU chip comprises an input IO port and an output IO port, wherein the input IO port is used for receiving an input signal of an external keyboard or a mouse or a touch input signal, and the output IO port is used for transmitting a signal received by the input IO port to the CPU.

6. A device to facilitate the replacement of ECs as recited in claim 1, wherein the power management chip is a PMU chip.

7. An apparatus for facilitating the replacement of ECs as claimed in claim 1, wherein the CPU includes an operator and a controller; the arithmetic unit reads the data of the MCU chip or the power management chip through the universal serial bus, transmits the data to the controller, and feeds back a read signal through the controller.

8. An apparatus for facilitating the replacement of an EC according to claim 7, where the CPU further comprises a CPU bus for connecting external electronic components to the operator or controller.

9. A computer motherboard characterised in that the motherboard is provided with means to facilitate EC replacement as claimed in claims 1 to 8.

10. A computer device characterized by being mounted with the computer main board of claim 9.