CN101770405A - Method for debugging serial notebook computer - Google Patents

Abstract

The invention discloses a method for debugging a serial notebook computer in order to realize the simplicity on adding DEBUG function for the notebook computer. The method comprises the following steps of: sending DEBUG data written by CPU to the 80H port or other IO port through the LPC channel of EC or other special IC to a LPC bus through south bridge and receiving the data through the EC; sending the data through the data line of a serial port according to a certain format; and receiving the data through a data line. The method can effectively reduce the cost on adding the debug function for the notebook computer, and facilitates debugging in the research and development and for factories and workers.

Description

The method that is used for debugging serial notebook computer

Technical field

The invention belongs to a kind of computer system debug method, particularly a kind of method that is used for debugging serial notebook computer.

Background technology

Fault on the PC, by whether being shown as the boundary on the display, can be divided into two big class faults: a class fault is called " key fault ".PC all will carry out power-on self-test (Power On Self Test, i.e. POST) when start, under the guiding of mainboard BIOS, each assembly of strict detection system if there is hardware fault in computing machine, can reflect generally speaking at this moment.The process of POST is roughly: power up → CPU → ROM BIOS → System Clock → DMA → 64Kb RAM → IRQ → Display Card etc., detect video card process in the past and be called the critical piece test, any critical piece has problem, computing machine all will be in suspended state, can only be by Reset key or start again, this class fault just belongs to " key fault ", again these faults is referred to as traditionally " core fault ".The device that produces the core fault mainly contains: mainboard, CPU, video card, internal memory and power supply etc.; Another kind of fault is called " nonessential fault ".After having detected video card, computing machine will be provided with etc. remaining internal memory, I/O mouth, soft or hard disk drive, keyboard, PnP device, CMOS and detect, and show various information and error report on screen.Detected in the meantime fault is exactly " a nonessential fault ".If have abnormal equipment this moment, will stop at the relevant detection position and reporting errors information, the prompting user selects to proceed or restart computing machine; If all are normal, computing machine shows equipment list on screen, and by the system start-up driver of setting among the CMOS, loads boot (boot) start-up system.

Adopting at present is that PCI debug card or LPC debug card are realized the debug error eliminating function the most widely, these cards all need the lot of data line to be used for realizing the transmission of data, be unfavorable for the production debugging of the product of this small size of notebook, and be difficult to the storage of realization data.

Summary of the invention

At existing problem in the above-mentioned prior art, the present invention aims to provide a kind of method that is used for debugging serial notebook computer, increases the simplification of DEBUG error eliminating function to realize notebook computer.

A kind of method that is used for the serial notebook computer debug of the present invention may further comprise the steps:

The DEBUG data of the CPU machine being write to 80H mouth or other IO mouths by low pin count bus (LPC) passage or other special ICs of embedded controller (EC) send to low pin count bus bus through south bridge;

Low pin count bus bus is sent to embedded controller by multi-thread transmission with the DEBUG data;

Embedded controller receives the DEBUG data and these data is encoded into serial data according to certain data layout;

Described serial data transfers to outside the reception by the serial ports single line and shows.

Adopt the obtained effect that has of this method to be, can effectively reduce the cost of notebook in increasing the debug function, make things convenient for research and development, factory and maintenance personal's debugging.

Description of drawings

Fig. 1 is the process flow diagram of the inventive method;

Fig. 2 is a serial data processing flow chart in the inventive method

Embodiment

As shown in Figure 1, a kind of method that is used for the serial notebook computer debug of the present invention may further comprise the steps:

The DEBUG data of the CPU machine being write to 80H mouth or other IO mouths by low pin count bus (LPC) passage or other special ICs of embedded controller (EC) send to low pin count bus bus through south bridge;

Low pin count bus bus is sent to embedded controller by multi-thread transmission with the DEBUG data;

Embedded controller receives the DEBUG data and these data is encoded into serial data according to certain data layout;

Described serial data transfers to outside the reception by the serial ports single line and shows.

What Fig. 2 was represented is to be serial data processing procedure in this method.

Claims (1)

1. method that is used for debugging serial notebook computer is characterized in that may further comprise the steps:

The DEBUG data of the CPU machine being write to 80H mouth or other IO mouths by low pin count bus (LPC) passage or other special ICs of embedded controller (EC) send to low pin count bus bus through south bridge;

Low pin count bus bus is sent to embedded controller by multi-thread transmission with the DEBUG data;

Embedded controller receives the DEBUG data and these data is encoded into serial data according to certain data layout;

Described serial data transfers to outside the reception by the serial ports single line and shows.

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