CN103530157A - Method for flashing VR chips in DOS - Google Patents

Abstract

The invention provides a method for flashing VR chips in a DOS. All VR chips on a main board are connected to an SMBUS of a south bridge SMBUSHost controller, one SMBUS slave address is allocated to each chip, thus, software can find the corresponding VR chips on the main board by executing SMBUS commands on the different slave addresses, and chip contents can be read and written. The method has the advantages of achieving VR chip flashing without tools (jigs), being capable of rapidly completing content changing on the VR chips, saving time and labor, and improving the work efficiency.

Description

A kind of method of writing with a brush dipped in Chinese ink VR chip under DOS

Technical field

The present invention relates to Computer Applied Technology field, specifically a kind of method of writing with a brush dipped in Chinese ink VR chip under DOS.

Background technology

Along with the fast development of server technology, performance, function and ease for use are all in continuous enhancing, and it is increasing that the power consumption of server also becomes.Along with the energy-conserving and environment-protective policy that country advocates, the power consumption Performance Ratio of server also more and more receives client's concern.Intel has done a lot of work for the power consumption of CPU and internal memory, and VR chip is introduced in one of them important design exactly on mainboard.VR chip is Voltage Regulator Chip, is a chip for dynamic adjustments voltage.VR chip is connected with internal memory with CPU on server master board, can regulate dynamically according to current system load the electric current and voltage value of CPU and internal memory, thus power consumption that can dynamic debugging system.Digitized VR chip, by inner various registers, is realized the electric current and voltage value of controlling on mainboard.And like this register of VR chip internal is the assignment again that can be write with a brush dipped in Chinese ink, thereby the VR chip of having realized same model can be realized different power consumption control on dissimilar mainboard.

But writing with a brush dipped in Chinese ink of register is at present that a set of tool of providing of YongVR chip producer is burned in concrete VR chip by concrete content mostly in VR chip.After mainboard volume production, the quantity of the VR chip that need to write with a brush dipped in Chinese ink is very huge, needs special people to take much time and writes with a brush dipped in Chinese ink chip, and can this also give supply in time and brought risk.

Summary of the invention

The object of this invention is to provide a kind of method of writing with a brush dipped in Chinese ink VR chip under DOS.

The object of the invention is to realize in the following manner, all VR chips on mainboard are connected in the SMBUS bus of south bridge SMBUS Host controller, and be a SMBUS slave addresses Slave Address of each chip distribution, software just can find VR chip corresponding on mainboard by carrying out SMBUS order to different slave addresses Slave Address like this, and read-write chip content, concrete performing step is as follows:

1) write SMBUS Protocol:SmbusReadByte () and SmbusWriteByte ();

Because program only need to be carried out the read-write operation of Byte, so only need to realize above two operational instances;

2) the VR chip Programming Specificatin providing according to VR chip producer completes the concrete read-write operation to VR chip, although the VR chip read-write mode of every JiaVR chip production manufacturer is incomplete same, the operational manual of the concrete VR chip model that will provide according to producer carrys out the mode of writing with a brush dipped in Chinese ink of specific implementation VR chip, only write with a brush dipped in Chinese ink mode different, concrete read-write operation is all to meet SMBUS industrial specification;

3) realize the Correctness checking mechanism of VR chip flash

In order to improve correctness and the reliability of writing with a brush dipped in Chinese ink, must set up an effective Correctness checking mechanism, a kind of simple method is: after VR chip flash completes, VR chip content is again read out and is saved in file, and and the file comparison that provides while writing with a brush dipped in Chinese ink, if in full accord, be considered as writing with a brush dipped in Chinese ink successfully.

The invention has the beneficial effects as follows:

(1) realize the instrument of exempting from (tool) and write with a brush dipped in Chinese ink VR chip;

(2) can complete fast the change of VR chip content;

(3) save time and manpower, increase work efficiency.

Accompanying drawing explanation

Fig. 1 writes with a brush dipped in Chinese ink the process flow diagram of VR chip under DOS.

Embodiment

With reference to Figure of description, method of the present invention is described in detail below.

The present invention relates to the field of power management of CPU and internal memory on server, specifically by the software under DOS environment, write with a brush dipped in Chinese ink the register in power management chip VR relevant to CPU and internal memory on server master board.

If can write with a brush dipped in Chinese ink VR chip with software under a common OS environment, that will improve the burned efficiency of VR chip greatly.

The present invention is exactly, in order to realize a kind of like this method, by writing the software moving under DOS environment, to complete writing with a brush dipped in Chinese ink of VR chip and verifying work, and guarantees correctness and the reliability write with a brush dipped in Chinese ink.

The mode of specifically writing with a brush dipped in Chinese ink of VR chip can complete by SMBUS agreement, on the south bridge of system, there is an integrated SMBUS Host controller, we only need be connected to VR chip in the SMBUS bus on this controller, just can be by the content of SMBUS agreement read-write VR chip.

Specific implementation please refer to implementation method.

Precondition: the VR chip on mainboard is connected in the SMBUS bus of south bridge.

We are connected to all VR chips on mainboard in the SMBUS bus of south bridge SMBUS Host controller, and are a SMBUS Slave Address of each chip distribution.Software just can find VR chip corresponding on mainboard by carrying out SMBUS order to different Slave Address like this, and read-write chip content.

Concrete software performing step below:

(1) realize SMBUS Protocol:SmbusReadByte () and SmbusWriteByte ()

Because our program only need to be carried out the read-write operation of Byte, so only need to realize above two operational instances;

Please refer to SMBUS industrial specification: System Management Bus (SMBus) Specification, Version 2.0;

(2) the VR chip Programming Specificatin providing according to VR chip producer completes the concrete read-write operation to VR chip;

The VR chip read-write mode of every JiaVR chip production manufacturer is probably incomplete same, and the operational manual of the concrete VR chip model that this will provide according to producer carrys out the mode of writing with a brush dipped in Chinese ink of specific implementation VR chip.Please note that only to write with a brush dipped in Chinese ink mode different, concrete read-write operation is all to meet SMBUS industrial specification;

Because the read-write mode of VR chip belongs to the classified document of VR chip producer, no longer illustrate here;

(3) realize the Correctness checking mechanism of VR chip flash

In order to improve correctness and the reliability of writing with a brush dipped in Chinese ink, must set up an effective Correctness checking mechanism, a kind of simple method is: after VR chip flash completes, VR chip content again read out and is saved in file, and and our file comparison of providing while writing with a brush dipped in Chinese ink.If in full accord, can be considered and write with a brush dipped in Chinese ink successfully.

Except the technical characterictic described in instructions, be the known technology of those skilled in the art.

Claims (1)

1. a method of writing with a brush dipped in Chinese ink VR chip under DOS, it is characterized in that all VR chips on mainboard to be connected in the SMBUS bus of south bridge SMBUS Host controller, and be a SMBUS slave addresses Slave Address of each chip distribution, software just can find VR chip corresponding on mainboard by carrying out SMBUS order to different slave addresses Slave Address like this, and read-write chip content, concrete performing step is as follows:

1) write SMBUS Protocol:SmbusReadByte () and SmbusWriteByte ();

Because program only need to be carried out the read-write operation of Byte, so only need to realize above two operational instances;

2) the VR chip Programming Specificatin providing according to VR chip producer completes the concrete read-write operation to VR chip, although the VR chip read-write mode of every JiaVR chip production manufacturer is incomplete same, the operational manual of the concrete VR chip model that will provide according to producer carrys out the mode of writing with a brush dipped in Chinese ink of specific implementation VR chip, only write with a brush dipped in Chinese ink mode different, concrete read-write operation is all to meet SMBUS industrial specification;

3) realize the Correctness checking mechanism of VR chip flash

In order to improve correctness and the reliability of writing with a brush dipped in Chinese ink, must set up an effective Correctness checking mechanism, a kind of simple method is: after VR chip flash completes, VR chip content is again read out and is saved in file, and and the file comparison that provides while writing with a brush dipped in Chinese ink, if in full accord, be considered as writing with a brush dipped in Chinese ink successfully.

Images