KR0141143B1 - Method of testing function in cd-rom drive - Google Patents

Abstract

The present invention relates to a functional test method of a CD-ROM drive.

The present invention comprises the steps of storing a plurality of functional test data in a predetermined order in one test compact disk; Turning on the test switch of the CD-ROM drive and placing the test compact disk on the CD-ROM drive; Starting a test from the CD-audio data among the plurality of functional test data; Determining whether the operation of the drive according to the data is normal; If the operation of the drive is not normal, generating a malfunction signal; If the operation of the drive is normal, determining whether all tests have been completed; If all tests have not been completed, starting a test of the next data; And if all tests have been completed, generating a normal signal and taking out the test compact disc.

This method of the present invention, unlike the conventional method of testing by replacing a number of disks because the test for each function by a single disk, so that the test work is easier than before, greatly reducing the time required for the operation Can be reduced.

Description

How to test functionality of CD-ROM drive

1 is a perspective view showing the appearance of a conventional CD-ROM drive.

2 is a schematic system diagram of a conventional CD-ROM drive.

3 is a state diagram in which a plurality of functional test data is recorded on one disk in the functional test method of the CD-ROM drive according to the present invention.

4 is a flow chart showing a process of testing the various functions of the drive by the function test method of the CD-ROM drive of the present invention.

* Explanation of symbols for main parts of the drawings

11: (CD-ROM drive) housing 12: tray door

13: Eject button 21: Disk

22: spindle motor 23: pickup device

24: CPU 25: SSP

The present invention relates to a functional test method of a CD-ROM (CD-ROM) drive, and in particular, a functional test of a CD-ROM drive that can test various functions using one test disk. It is about a method.

CD-ROM refers to a large-capacity storage device with a diameter of 12cm and 680MB that can only be played using laser light like a CD for general music. The CD-ROM drive, which actually drives the CD-ROM, is an AT-BUS type according to a data transmission method with a system like a hard disk. It can be divided into three interface types, SCSI method and Enhanced IDE method. In addition, the disc may be divided into a tray method and a caddy method according to a disk loading method.

AT-BUS method has been pointed out a problem in compatibility because different drive companies use different interface method, but it is widely used because it is easy to install and cheap. The SCSI method supports a system-level interface method, not a disk interface, and cannot be used for a controller using the AT-BUS method. While AT-BUS transmits 1.5MB ~ 2MB of data per second, it has a fast data transfer speed of 40MB per second and has excellent scalability to use up to 7 peripheral devices. However, a separate SCSI controller card must be purchased, which is expensive. The enhanced IDE method is a new high speed interface method that compensates for the disadvantages of the AT-BUS method and the SCSI method as described above, and has a faster data transfer rate than the conventional AT-BUS method. In addition, instead of using a proprietary interface, it can be used by connecting to a 40-pin standard connecting cable of a hard disk, and has the advantage of smooth video.

1 and 2, a conventional CD-ROM drive is shown, in which FIG. 1 is an external view of the drive, and FIG. 2 is a schematic system configuration of the drive.

First, referring to FIG. 1, the conventional seed-rom drive is provided with a box-shaped outer housing 11 as a whole, a tray door 12 for inserting and extracting a disk on the front of the housing 11, An ejection button 13 or the like for ejecting the disk seated inside the housing 11 is provided. In this case, the housing 11 does not necessarily have an independent form as shown in the drawing, and when the CD-ROM drive is built in the computer main body, the housing of the computer main body may also simultaneously serve as the housing of the CD-ROM drive. .

On the other hand, the CD-ROM drive having such an external structure has an internal system configuration as schematically shown in FIG. That is, a spindle motor 22 for rotating the seated disk 21 is provided, and a pickup device 23 for reproducing the hairs recorded on the disk 21 is provided in the periphery thereof. In addition, the CPU (Central Processing Unit) 24 for controlling the system as a whole, and the spindle motor 22 to drive, while receiving a predetermined signal from the pick-up device 23 to relay to the CPU 24 and the like Servo signal processor 25 (SSP) which performs dynamics is installed.

By the way, in the conventional CD-ROM drive of such a configuration, various functional tests of the drive, for example, CD-Audio (red book format) test, CD-ROM (yellow book format) test, CD-I (green book) Format tests, photo-CD tests, multisession CD tests, and full motion video (FMV) -CD tests use six test discs in different formats. Therefore, the operation of inserting and ejecting the disc into the drive one by one must be repeated, which is cumbersome and time consuming to test.

The present invention was created to solve the above problems, and by performing various functional tests of the drive using one test disk, the test work can be made easier and the time required for the test can be greatly reduced. The purpose is to provide a functional test method for a CD-ROM drive.

In order to achieve the above object, a functional test method of a CD-ROM drive according to the present invention comprises: storing a plurality of functional test data in a predetermined order on a single test disk;

Turning on the test switch of the CD-ROM drive and placing the test compact disk on the CD-ROM drive; Starting a test from CD-audio data among the plurality of functional test data; Determining whether the operation of the drive according to the data is normal; If the operation of the drive is not normal, generating a malfunction signal; If the operation of the drive is normal, determining whether all the tests have been completed; If all the tests are not completed, starting a test of the next data; And if all tests have been completed, generating a normal signal and taking out the test compact disc.

In this way, the test data for each function stored separately in a plurality of conventional disks is stored on one disk, and each function test is performed. Therefore, the test operation is easier and the time required for the operation is greatly reduced. There is an advantage to this.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a state diagram in which a plurality of functional test data is recorded on one disk in the functional test method of the CD-ROM drive according to the present invention.

Referring to this, as illustrated, the test data of each function is sequentially recorded from the inner circumference to the outer circumference of the test disk 30. In other words, one disk used for testing is multi-session (a method of storing disks divided into sessions to store different formats on one disk), and the remaining five types of data are divided into sessions. Will be included. For example, CD-audio data is included in area 1, CD-ROM data in area 2, CD-1 data in area 3, photo-CD data in area 4, and FMV data in area 5. . These areas are then adjusted so that the areas with high frequency of errors are tested first.

4 is a flowchart showing a process of testing various functions of the drive by the function test method of the CD-ROM drive of the present invention.

Referring to this, first, the test switch of the drive is turned ON (41), and then a disk containing the five test data is placed in the drive (42). Then, the test is started from the CD-audio data which is area 1 of the disc (43). Then, it is determined whether or not the operation of the drive according to the data is normal (44). In this determination step 44, the operation of the drive is not normal and generates a malfunction signal (45). In operation 44, the operation of the drive is normal, and it is determined whether all the tests are completed (46). In this determination step 46, if all the tests have not been completed, the test of the data is started (47), and the steps 44 to 47 are repeated several times. When all the tests have been completed in this way, a normal signal is generated (48), and the test compact disc is taken out (49). The function test of the drive is completed by the above.

As described above, in the functional test method of the CD-ROM drive according to the present invention, unlike the conventional method of testing by replacing a plurality of disks, each function is tested by one disk. This is easier and the time required for work can be greatly reduced.

Claims (2)

Arranging and storing a plurality of functional test data in one order on one test compact disk; Turning on the test switch of the CD-ROM drive and placing the test compact disk on the CD-ROM drive; Starting a test from the CD-audio data among the plurality of functional test data; determining whether the operation of the drive according to the data is normal; if the operation of the drive is not normal, generating a malfunction signal Step | If the operation of the drive is normal, determining whether all the tests have been completed; If all the tests are not completed, starting a test of the next data; And if all tests have been completed, generating a normal signal, and taking out a test disc for the test. The method of claim 1, wherein the plurality of functional test data are stored in regions concentrically divided on a disk.