JP2000330879A - Method and device for testing input/output channel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute a test program from a master device by switching the interface elements of drivers/receivers connected to channels of many sorts so as to be suited to the sort of a connected channel. SOLUTION: The I/O channel testing device is provided with plural drivers/ receivers 2 connected to respective channels of an I/O processor 11 through respective ports, an interface element switching circuit 3 for switching the interface elements of respective drivers/receivers 2 corresponding to the sort of a connected channel, a data transfer processing part 5 for transmitting/ receiving test data to/from the I/O processor 11, and a control part 8 for controlling the transmission/reception of test data from/to the data transfer processing part 5 by a transfer mode set in accordance with the sort of the connected channel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an input / output channel test method and apparatus, and more particularly to an input / output channel test method and apparatus for performing a connection test of a plurality of types of input / output channel interfaces provided in an input / output processing device.

[0002]

2. Description of the Related Art In a channel interface test in a conventional computer device, operation has been confirmed by connecting a peripheral device corresponding to a channel or a pseudo peripheral device. However, in recent years, technical development related to channels has progressed, and various types of channels exist and are used together in one system.

[0003] The channel connection test in such a system is complicated and often causes erroneous recognition or erroneous operation.
This is one of the most inefficient tasks. Also, in order to test for all kinds of channels,
Various peripheral devices and test equipment need to be connected, which is very expensive.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an interface element of a driver / receiver connected to various types of channels by changing the types of channels. It is an object of the present invention to provide an input / output channel test method and apparatus in which a higher-level device executes a test program by switching to conform to the above.

[0005]

According to the present invention, there is provided an input / output channel test method comprising a test program which is connected to a plurality of types of input / output channels of an input / output processing device connected to a central processing unit and executed by the central processing device. In the input / output channel test method for testing each channel of the input / output processing device, an interface element of a driver / receiver connected to the input / output channel is switched according to the type of the input / output channel, and The firmware is switched to a transfer mode corresponding to the type, and the input / output channel is tested.

Further, the input / output channel test apparatus of the present invention
In an input / output channel test apparatus for testing each channel of the input / output processing device by a test program executed by the central processing device connected to a plurality of types of input / output channels of the input / output processing device connected to the central processing device, Means for switching an interface element of a driver / receiver connected to a writing output channel in accordance with the type of the input / output channel, and further testing the input / output channel by switching firmware to a transfer mode corresponding to the type of the input / output channel Means.

Further, the input / output channel test apparatus of the present invention
In an input / output channel test apparatus for testing each channel of the input / output processing device by a test program executed by the central processing device connected to a plurality of types of input / output channels of the input / output processing device connected to the central processing device, A plurality of drivers / receivers connected to respective channels of the entry / output processing device via ports, an interface element switching circuit for switching interface elements of the drivers / receivers in accordance with the type of the connected channels; A data transfer processing unit that transmits and receives test data to and from the input / output processing device via a receiver;
A control unit that controls transmission and reception of test data in the data transfer processing unit according to a specific transfer mode set according to the type of the connected channel.

Further, in the input / output channel test apparatus of the present invention, the data transfer processing section selects a specific transfer mode corresponding to the type of the connected channel and establishes an interface with the input / output processing apparatus. A transfer mode switching circuit is provided.

Further, in the input / output channel test apparatus according to the present invention, the interface element switching circuit and the transfer mode switching circuit set a specific interface element and a specific transfer mode by a changeover switch.

Further, in the input / output channel test apparatus according to the present invention, the control unit includes a ROM storing a plurality of firmwares respectively corresponding to a plurality of transfer modes, and reads a specific firmware from the ROM according to the setting of the changeover switch. Run.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a first embodiment of the present invention. In the figure, an input / output channel test apparatus 1 according to the present invention is connected to a plurality of types of input / output channels of an input / output processing apparatus 11 connected to a central processing unit 10 and executed by a central processing unit.
A plurality of drivers / receivers 2 connected to the respective channels of the input / output processing device via ports, respectively, in the input / output channel test device for testing each channel of the input / output processing device by 0. An interface element switching circuit 3 for switching an interface element of a driver / receiver according to the type, and a data transfer processing unit 5 for transmitting / receiving test data to / from the input / output processing device via the driver / receiver are connected. And a control unit 8 for controlling transmission and reception of test data in the data transfer processing unit according to a specific transfer mode set according to the type of the channel.

The data transfer processing section includes a transfer mode switching circuit 4 for selecting a specific transfer mode according to the type of the connected channel and establishing an interface with the input / output processing device. In the interface element switching circuit and the transfer mode switching circuit, a specific interface element and a specific transfer mode are set by changeover switches 6 and 7, respectively.

In FIG. 1, there are several types of channels of the input / output processing device 11 to be tested, and the channels have input / output channel interfaces such as a low power channel and a high speed channel. The input / output channel test apparatus 1 includes various interface elements (drivers / receivers) in order to correspond to these channels, selects a specific element from the changeover switch 6, and selects the element selected by the interface element switching circuit 3. Connect the channel to

Next, a specific transfer mode is selected from the changeover switch 7, and the selected transfer mode is set by the transfer mode switching circuit 4 in the data transfer processing unit 5. The transfer mode selected by the changeover switch 7 is determined by the control unit 8.
Is notified to the control firmware 21.

FIG. 2 is an explanatory diagram showing the operation of the input / output channel test apparatus 1 described above.

Referring to FIG. 1, in step 1, an interface element of the test apparatus is selected. Next, in step 2, the transfer mode is selected, and the switching process on the logic circuit is completed. In step 3, the transfer mode selected to prepare for the operation control is transmitted to the control unit, and the selected control firmware 21 is read out at the time of reset or power-on, and becomes operable. Finally, in step 4, the test channel is connected to the test apparatus, and the test program 20 executes a channel operation confirmation test.

FIG. 3 is a block diagram showing a second embodiment of the present invention. In the figure, an input / output channel test apparatus 51 according to the present invention is connected to a plurality of types of input / output channels of an input / output processing apparatus 11 connected to a central processing apparatus 10 and is executed by a test program 20 executed by the central processing apparatus. In an input / output channel test device for testing each channel of the entry / output processing device, a plurality of drivers / receivers 52 connected to the respective channels of the input / output processing device via ports, respectively, and correspond to the type of the connected channel. An interface element switching circuit 53 for switching an interface element of a driver / receiver, a data transfer processing unit 55 for transmitting / receiving test data to / from the input / output processing device via the driver / receiver, The data transfer processing is performed according to a specific transfer mode set according to the type. It constituted a control unit 58 for controlling the transmission and reception of the test data in.

The data transfer processing section has a transfer mode switching circuit 54 for selecting a specific transfer mode according to the type of the connected channel and establishing an interface with the input / output processing device. In the interface element switching circuit and the transfer mode switching circuit, a specific interface element and a specific transfer mode are set by a switch 56. Further, the control unit includes a ROM 59 storing a plurality of firmwares corresponding to a plurality of transfer modes, respectively, and reads and executes a specific firmware from the ROM according to the setting of the changeover switch.

In FIG. 3, there are several types of channels of the input / output processing device 11 to be tested, which have input / output channel interfaces such as a low power channel and a high speed channel. The input / output channel test apparatus 51 includes various interface elements (drivers / receivers) in order to correspond to these channels, selects a specific element from the changeover switch 56, and selects the selected element by the interface element switching circuit 53. Connect the channel to

Further, a specific transfer mode is selected from the changeover switch 56, and the selected transfer mode is set by the transfer mode switching circuit 54 in the data transfer processing unit 55.
Further, the transfer mode selected by the changeover switch 56 is transmitted to the control unit 58, and the ROM 59 (read only memory)
The firmware for various transfer modes is specified, and the firmware selected at the time of reset or power-on is
M (rewritable memory) is read to prepare control firmware 21 corresponding to the transfer mode.

As described above, the test apparatus that has become operable is connected to the test channel, and the test program 20
A channel operation check test is performed by

[0022]

As described in detail above, according to the present invention, a connection test of an input / output channel is performed by executing a test program from a higher-level device without requiring complicated connection and operation. Can be. Therefore, it is possible to efficiently perform the test while minimizing erroneous recognition and erroneous operation. Further, since it is not necessary to actually connect a peripheral device or a substitute pseudo device for the test, the cost of the test equipment can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the operation of the input / output channel test device of FIG.

FIG. 3 is a block diagram showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 I / O channel test apparatus 2 Driver / receiver 3 Interface element switching circuit 4 Transfer mode switching circuit 5 Data transfer processing unit 6, 7 Changeover switch 8 Control unit 10 Central processing unit 11 I / O processing unit 20 Test program 21 Control firmware

Claims (6)

[Claims] An input / output channel connected to a plurality of types of input / output channels of an input / output processing unit connected to a central processing unit and testing each channel of the input / output processing unit by a test program executed by the central processing unit. In the test method, an interface element of a driver / receiver connected to the input / output channel is switched according to the type of the input / output channel, and further, firmware is switched to a transfer mode corresponding to the type of the input / output channel, and An input / output channel test method characterized by testing a channel. 2. An input / output channel connected to a plurality of types of input / output channels of an input / output processing device connected to a central processing unit, for testing each channel of the input / output processing device by a test program executed by the central processing unit. In the test apparatus, means for switching a driver / receiver interface element connected to the input / output channel in accordance with the type of the input / output channel, and further switching firmware to a transfer mode corresponding to the type of the input / output channel, and Means for testing a writing output channel. 3. An input / output channel connected to a plurality of types of input / output channels of the input / output processing device connected to the central processing unit and testing each channel of the input / output processing device by a test program executed by the central processing unit. In a test apparatus, a plurality of drivers / receivers connected to respective channels of the input / output processing device via ports, respectively,
An interface element switching circuit for switching an interface element of a driver / receiver according to a type of a connected channel; and a data transfer processing unit for transmitting / receiving test data to / from the input / output processing device via the driver / receiver. A control unit for controlling transmission and reception of test data in the data transfer processing unit according to a specific transfer mode set according to the type of a connected channel. 4. An input / output channel test apparatus according to claim 3, wherein said data transfer processing section selects a specific transfer mode in accordance with a type of a connected channel, and interfaces with said input / output processing apparatus. An input / output channel test apparatus comprising a transfer mode switching circuit for establishing 5. The input / output channel test apparatus according to claim 3, wherein the interface element switching circuit and the transfer mode switching circuit set a specific interface element and a specific transfer mode by a switch. Characteristic input / output channel test equipment. 6. The input / output channel test apparatus according to claim 3, wherein said control unit includes a ROM storing a plurality of firmwares respectively corresponding to a plurality of transfer modes, and according to a setting of said changeover switch. An input / output channel test apparatus, wherein a specific firmware is read from the ROM and executed.