CN1276356C - Detection method of PCI system - Google Patents

Abstract

The invention relates to a PCI system detection method, especially a PCI system detection method capable of quickly confirming system problem points, the PCI system at least comprises a central processing unit, a basic input/output system, a chipset comprising a PCI controller, a PCI bus and at least one PCI device; the detection method mainly comprises the following steps: providing an interrupt service test program; using interrupt service test to write the interrupt temporary memory of PCI device to be tested into enable to make PCI device send out an interrupt request signal; and detecting whether the interrupt request signal of the PCI device is received in a preset period, and judging whether the interrupt function is correct; in addition, the test system can also include the read-write test of the PCI temporary storage, the PCI control signal test and the PCI data bus test, and can accelerate the quality control and the test process.

Description

Detection method of PCI system

technical field

The invention relates to a detection method of a PCI system, in particular to a detection method of the PCI system which can quickly confirm system problems.

technical background

In the past, the PCI (peripheral component Interconnectlon) system in the computer architecture commonly used in the industry is shown in FIG. 1 . The computer system 10 mainly includes a CPU 12 , a chipset 14 , a memory 18 and a PCI slot 16 . Wherein, the central processing unit 12 is responsible for the operation of the entire computer system, including command reading, command execution, memory access, data input and output, etc.; the memory 18 is used to store system commands and data; the chipset 14 is Responsible for coordination and arbitration between the central processing unit 12 and other system components; and the PCI slot 16 can be used to insert a plurality of PCI devices such as the first PCI device 161 and the second PCI device 163, so as to expand the function of the computer system, Perform additional extensions such as LAN connections, dial-in modem connections, or wireless network connections.

With the continuous development of information technology and the continuous improvement of semiconductor manufacturing process, people have higher and higher requirements for computer performance and more and more requirements for the functions it should have. In order to make the basic configuration of computers meet people's needs, manufacturers not only integrate more and more functional circuits into a control chip (such as North Bridge and South Bridge), but also integrate more and more computer peripheral devices such as PCI The device is built directly on a motherboard, which not only reduces the overall production cost, but also saves the user from the trouble of purchasing an interface card for the PCI device, and avoids the conflict between the inserted interface card and the computer settings. Unusable predicament.

The more built-in PCI devices (PCI device on board) are arranged on a motherboard, the more functions the system can provide. However, once an error occurs in the system, the debugging project will be more cumbersome and complicated. It often happens that all the PCI function tests are correct, but the system cannot operate normally.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a detection method of a PCI system, which mainly uses an interrupt service test program to test whether the interrupt function of the system is correct, and can quickly find out the problem points of the system error.

The secondary purpose of the present invention is to provide a detection method for a PCI system, which uses the interrupt service test program to enable writing into the interrupt temporary register of the PCI device, so that the PCI device sends an interrupt request signal to detect its interrupt function Is it normal.

Another object of the present invention is to provide a detection method for a PCI system, which can still use a detection program to detect whether the interrupt register of the basic input and output system of the system is enabled, and whether the interrupt path selection table is correct.

Yet another object of the present invention is to provide a detection method for a PCI system, which can find out the problem points of errors by detecting whether the interrupt signal line wiring of the main board and the interrupt function of the PCI device are correct, so as to formulate and execute the problem. solution.

A detection method of a PCI system, the system includes a central processing unit, a basic input and output system, a chipset comprising a PCI controller, a PCI bus and at least one PCI device, wherein the main steps of the detection method include:

Provide an interrupt service test program;

Using the interrupt service test program to make the PCI device to be tested send an interrupt request signal; and

Determine whether the interrupt function of the PCI system is correct.

The PCI device includes an interrupt register, and the interrupt service test program directly writes enable to the interrupt register, so that the PCI device sends an interrupt request signal.

The interrupt service test program is provided with a predetermined period, if the interrupt request signal of the PCI device is received within the predetermined period, it is judged that the interrupt function of the system is correct; if the interrupt of the PCI device is not received within the predetermined period If the signal is requested, it is judged that the interrupt function is wrong.

The detection method may also include a step of detecting interrupt function problems, which can be implemented when the interrupt function is wrong.

The described interrupt function problem spot detection step comprises the following steps:

Detect whether the interrupt function in the BIOS register is enabled; and

Check whether the interrupt path selection table of the basic input/output system is correct.

The described interruption function problem detection step can also include the following steps:

Check whether the wiring of the interrupt signal line on the motherboard is correct; and

Detect whether the interrupt function of the PCI device is correct.

The detection method may also include a step of recording and reporting test results.

The detection method may also include a test step of reading and writing the PCI temporary register, which is used to test whether the function of the PCI device is correct.

The detection method may also include a PCI control signal test step for testing whether the control signal transmission of the PCI system is correct.

The detection method may also include a PCI data bus test step for testing whether the data transmission of the PCI system is correct.

The present invention is a PCI system detection method that can quickly confirm system problems. It mainly uses an interrupt service test program to test the interrupt function in the detection, which can quickly confirm the problem points and prevent the situation that the function test passes but fails to operate. occur.

Description of drawings

Figure 1: is a schematic block diagram of a PCI system in a conventional computer architecture;

Fig. 2: is the schematic block diagram of the PCI system in the current computer architecture;

Fig. 3: is the flowchart of a preferred embodiment of the present invention; And

Fig. 4: is the flow chart of the method for detecting interruption error problem points of the present invention.

Description of figure number:

10 computer system 12 central processing unit

14 Chipsets 16PCI Slots

161 first PCI device 163 second PCI device

18 memory

20 computer system 22 central processing unit

24 chipset 245BIOS

243PCI controller 26PCI slot

261PCI device 263PCI device

28Memory 29PCI bus

291 Built-in PCI device 293 Built-in PCI device

Detailed ways

For reaching the purpose of the present invention, the present invention proposes a kind of detection method of PCI system, wherein, this system comprises a central processing unit, a basic input and output system, a chipset comprising a PCI controller, a PCI bus and at least A PCI device, the main implementation steps of the detection method are to include: providing an interrupt service test program; utilizing the interrupt service test program to enable writing into an interrupt register of a PCI device to be tested, so that the PCI device sends an interrupt request signal; and detect whether the interrupt service test program receives the interrupt request signal within a predetermined period; the cause of the error can be quickly found out by the test of the interrupt function and the problem point detection program, and the debugging process can be completed quickly.

In order to enable the examiner to have a further understanding and understanding of the features, structure and achieved effects of the present invention, a detailed description is now given with preferred embodiments and accompanying drawings, as follows:

First, please refer to FIG. 2 , which is a schematic block diagram of the PCI system in the current computer architecture. As shown in the figure, its computer system 20 mainly includes a central processing unit 22, a chipset 24 including a PCI controller 243, a basic input/output system (Basic InPut/Output System; BIOS) 245, a memory 28 , and a PCI bus 29. Wherein, the PCI bus 29 is not only connected with a PCI slot 26, which can be used for inserting a plurality of external PCI devices 261, 263, but also can be connected with a plurality of built-in PCI devices 291 and 293 and the like.

Because the function expansion of the computer system in the past is mainly based on the external PCI device of the plug-in card, so as long as the connection between the PCI slot 26 and the PCI bus 29 is correct, and the external PCI devices 261 and 263 can also pass the functional test, generally speaking Nothing will happen. However, when a plurality of built-in PCI devices 291 and 293 are arranged on the main board, whether the system can operate normally will be related to the design and manufacture of the main board, rather than the functional test of the pure PCI devices. to ensure correctness.

Please refer to FIG. 3 , which is a flowchart of a preferred embodiment of the present invention. In order to ensure that a computer system with a built-in PCI device (comprising the computer architecture of the PCI system as shown in Figure 2) can operate normally, and when a problem occurs in the system, the location of the problem point can be detected quickly, the present invention provides a The detection method of the PCI system mainly includes the following steps: first, an interrupt service routine (interrupt service routine) is provided in the system test program, and the sending of the system interrupt request (interrupt request) signal is detected by using the interrupt service test routine Is it correct to receive a 301? If not, then further carry out the problem point detection 321 of the interrupt error, so as to confirm the cause of the error; If the pins are connected correctly, other functional tests of the PCI device can be performed.

Next, a read/write test of the PCI register in the PCI device can be performed to confirm whether the function provided by the PCI device is correct 303 ? If yes, test the PCI control signal again, so as to confirm whether the transmission of the control signal between the PCI controller in the chipset and the built-in PCI device is correct 305 ? If so, then perform the test of the PCI address and data bus (address/data bus; AD bus) to check whether the address and data transmission are correct 307; finally, make a test record according to the results of each test 309, can be used as the basis for debugging engineering and product management.

In the test of the above-mentioned interrupt program, the interrupt service test program can be used to directly write enable (enable) to the interrupt register of the built-in PCI device to be tested, which can trigger the built-in PCI device to send an interrupt request signal, And the interrupt service test program monitors whether the interrupt request signal sent by the built-in PCI device is received within a predetermined period; if it is, it means that the sending and receiving of the interrupt request signal are correct: if not, it means that its interrupt function An error occurred, and further detection of the problem point is required.

Finally, please refer to FIG. 4 , which is a flow chart of the method for detecting interruption error problem points of the present invention. As shown in the figure, it is mainly to implement the following detection steps when confirming that the interrupt program test of the system is wrong: first utilize a software to detect whether the interrupt function in the BIOS temporary register is enabled 401; if so, then further detect the interrupt function in the BIOS Whether the interrupt routing table (interrupt routing table) is correct 403; if so, it means that the setting in the BIOS has no error, and the detection of the hardware part needs to be carried out. At this time, first check whether the wiring of the interrupt signal line on the main board is correct 405; if it is, it means that the BIOS settings and the wiring of the interrupt signal line on the main board of the system are correct, so the wrong problem may appear in this Build on the PCI device. Then perform whether the interrupt function of the PCI device is correct 407, that is, trigger the PCI device to send an interrupt request signal, and monitor whether the potential of the interrupt pin drops, so as to confirm whether the interrupt function of the built-in PCI device is correct. Finally, a test record and report 409 are made according to the results of various tests.

Using the PCI system detection method of the present invention, the cause of the error and its problem can be quickly confirmed, and it can be found out that the error can be handled by the motherboard manufacturer, or can only be solved by reporting to the provider of the built-in PCI device. It can prevent manufacturers from being trapped in the loop of PCI device function testing, which not only wastes time without knowing it, but even causes mutual blame.

In summary, it can be seen that the present invention relates to a detection method of a PCI system, especially a detection method of a PCI system that can quickly confirm system problems, which mainly utilizes an interrupt service test program to perform an interrupt function during detection. The test can quickly confirm the problem point and prevent the situation that the function test passes but fails to work. Therefore, the present invention is actually a novelty, progressive, and industrially usable effect, which undoubtedly meets the requirements for patent application. It is advisable to submit an invention patent application according to law, and I urge the examiner to grant a patent for this invention as soon as possible. I really appreciate it.

The above is only a preferred embodiment of the present invention, and is not intended to limit the implementation scope of the present invention, that is, all equivalent changes and modifications made according to the shape, structure, characteristics, spirit and method of the present invention , should be included in the patent application scope of the present invention.

Claims (8)

1, a kind of detection method of pci system, this system includes wafer set, a pci bus and at least one PCI device that a central processing unit, a ROM-BIOS, include pci controller, it is characterized in that the key step of described detection method comprises:

One break in service test procedure is provided;

Utilize the break in service test procedure to make the PCI device of desire test send the interrupt request signal;

Whether the interrupt function of judging this pci system is correct;

Implement the step that an interrupt function problem points detects when the interrupt function mistake, the step that this interrupt function problem points detects also further comprises the following step: detect the whether activation of interrupt function in the ROM-BIOS working storage; And whether the break path option table that detects ROM-BIOS is correct.

2, detection method as claimed in claim 1 is characterized in that: described PCI device includes one and interrupts working storage, and this break in service test procedure is directly this interruption working storage write activation, to make this PCI device send the interrupt request signal.

3, detection method as claimed in claim 1 is characterized in that: this break in service test procedure is provided with a scheduled period, if receive the interrupt request signal of this PCI device in this scheduled period, judges that then the interrupt function of this system is correct; If do not receive the interrupt request signal of this PCI device, judge that then it interrupts capability error in this scheduled period.

4, detection method as claimed in claim 1 is characterized in that this interrupt function problem points detects step and also can include the following step:

Whether the wiring of the interruption signal line of inspection motherboard is correct; And

Whether the interrupt function that detects this PCI device is correct.

5, detection method as claimed in claim 4 is characterized in that: the step that also can include test result record and repayment.

6, detection method as claimed in claim 1 is characterized in that: also can include the testing procedure of PCI working storage read-write, whether the function that is used to test this PCI device is correct.

7, detection method as claimed in claim 1 is characterized in that: also can include a PCI controlling signal testing procedure, whether the controlling signal transmission that is used to test this pci system is correct.

8, detection method as claimed in claim 1 is characterized in that: also can include the testing procedure of a pci data bus, whether the data transmission that is used to test this pci system is correct.

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