JPH0536249A - Flexible disk driving device - Google Patents

Abstract

PURPOSE:To simply recognize the kinds of files, etc., in a diskette without starting host computer. CONSTITUTION:An information track is provided in the diskette other than a track area under management of the host computer beta, and an index data D concerning the kinds of files of the diskette is read and written in this information track. That is, when the read of the data is shown by a read/write changeover switch B, the index data recorded in the information track of the diskette is read out by a head 10, and this data is outputted via a CPU 1, etc., to an LCD 5, and the index data is displayed in the form of letters on a screen of the LCD 5. On the other hand, the write of the data is shown by the read/ write changeover switch B, the index data inputted via a key switch 2 is outputted via the CPU 1, etc., to the head 10, and is recorded in the information track of the diskette.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible disk drive device used as a peripheral device for a computer.

[0002]

2. Description of the Related Art Usually, a title sticker is attached to the surface of a diskette (flexible disk) used in this kind of flexible disk drive device, and an individual title is written on this title sheet to distinguish the diskettes. Trying to make it easier.

[0003]

However, if there are many types of files on the diskette, it is desirable to know at a glance the types and outlines of the files, but of course it is necessary to write the outline of the file on the title sticker. Filling in all the file names is also difficult due to the space. Regarding the file name, although it can be understood that the host computer is operated and the software for displaying the file is made to function, it is inconvenient to start the host computer each time, and the usability is very poor.

The present invention was created in view of the above background, and an object of the present invention is to provide a flexible disk drive device in which the types of files in a diskette can be easily identified without starting a host computer. To provide.

[0005]

In the flexible disk drive device according to the present invention, a heading regarding the file name of the flexible disk for all information tracks other than the area managed by the host computer among all the flexible disk tracks. The read / write switch for switching between writing and reading of data, an input section for inputting the headline data from the outside, and a display section for displaying the headline data to the outside are provided. When the write change switch indicates writing, the headline data input via the input unit is stored in the information track of the flexible disk, while when the read / write change switch indicates reading, Serial is characterized in that you have to be output to the display unit reads the index data stored in the track for information of a flexible disk.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a flexible disk drive device (hereinafter referred to as an FDD device) according to the present invention will be described below with reference to the drawings. FIG. 1 shows a block diagram of the embodiment apparatus. FIG. 2 is an explanatory diagram showing a truck on a diskette. The FDD device α described here by way of example has a configuration in which new hardware and software are added to the existing configuration, and the heading data (specifically, regarding the file name of the diskette γ (see FIG. 2) (specifically, ,
A new function is added that allows the title name of the diskette, the name / outline of the file in the diskette, etc.) to be output externally and the heading data to be freely rewritten.

Reference numeral 5 in the figure is an LC for outputting the heading data to the outside.
D (Liquid Crystal Display), 2 in the figure is a key switch such as a numeric keypad. Although not shown, the key switch 2 includes a character input key for inputting index data. Other than this, a title edit key which is a switch for displaying the headline data on the LCD 5, a read / write changeover switch B for selecting writing / reading of the headline data to the diskette γ, a type of the diskette γ (2D, 2DD ,
There is a disk type setting switch for selecting 2HD, etc.). The read / write switch B
Is normally in a read state.

The LCD 5 and the key switch 2 are both FD
The one provided on the outer surface of the D device α,
Existing CPU (Central Processing U
nit) 1 is under the control of That is, the key switch 2 is connected to a predetermined I / O terminal of the CPU 1, and V
An LCD 5 is connected via a RAM (Video Random Access Memory) and the LCD controller 4.

The above is the hardware added this time, but the existing components are also shown in FIG. 6 in the figure
Is an external interface that mediates data mutually transferred between the host computer β and the CPU 1, 9 in FIG.
Is a spindle motor for rotating the diskette γ. In the figure, reference numeral 10 is a head for writing or reading data in a predetermined track of the diskette γ, and data is mutually transferred via the read / write amplifier 101. In the figure, 8 is the head for the diskette γ track
It is a stepping motor for changing the position of 10 and a control signal output from the CPU 1 is guided to a stepping motor 8 via a driver 7.

As described above, the key switch 2 and the LCD 5
, Etc. are added, a subroutine program for individually operating these is newly added to the RAM of the CPU 1.
It is added to a predetermined address (not shown). In the figure, what is shown in the frame of the CPU 1 is the name of software for individually operating each component.

The software called the key input control 11 is a subroutine program for converting the heading data input by the key switch 2 into a predetermined format and transferring it to a predetermined register of the CPU 1. The key switch 2 and the key input control 11 form the input section A.

Software called LCD display control 12 is a subroutine program as follows. That is, the headline data converted into a predetermined format and written in a predetermined address of the VRAM 3 is sequentially read, and LC
Output to the LCD 5 via the D controller 4, and the LCD 5
The heading data is output externally in the form of characters. In addition,
VRAM 3, LCD controller 4, LCD 5 and LC
The D display control 12 constitutes the display section C.

The software called the stepping motor control 13 and the spindle motor control 14 are all existing software. The former is a subroutine program for controlling the stepping motor 8 and the latter is a subroutine program for controlling the spindle motor 9. ..

However, unlike the conventional apparatus, as shown in FIG. 2, the heading data can be read / written to the information track γ2 other than the track area γ1 managed by the host computer β among all the tracks of the diskette γ. It is like this. On the contrary, the host computer β cannot read / write the information track γ2. Further, the rotation speed and track density of the diskette γ are adjusted according to the disk type setting switch.

Next, a software program, which is a superordinate to the above-mentioned subroutine program, will be described with reference to FIG. 3, and the operation of the FDD device α will also be described. First, it is detected whether or not the diskette γ is attached to the FDD device α (S0), and when this is attached, it is checked whether or not the title edit key in the key switch 2 is turned on (S1). ). When the title edit key is turned on, the stepping motor 8 and the spindle motor 9 are set according to the setting of the disc type setting switch.
Respectively, and the head 10 moves to a predetermined sector of the information track γ2 of the diskette γ. Then, the headline data previously recorded on the diskette γ is sequentially read by the head 10, and the read / write amplifier is read.
It is input via 101 (S2). At this time, the read / write switch B is in the read state as described above.

The index data thus read is converted into a predetermined format and sequentially written in a predetermined address of the VRAM 3. At the same time, the data written in the VRAM 3 is sequentially read out, and the LCD controller 4 is used to read the data.
5, and as a result, the headline data is displayed in the form of characters on the screen of the LCD 5 (S3).

That is, when the title edit key is turned on with the diskette γ mounted in the FDD device α, the headline data recorded on the diskette γ is output on the LCD 5 in the form of characters.

Next, the read / write switch B
State is detected, and when there is no change in this state, the process returns to step 0 again, but the read / write switch B
When is switched to writing (S4), the data input via the key switch 2 is input (S5). The inputted headline data is converted into a predetermined format, and similarly to the case of reading, the head 10 is moved to a predetermined sector of the information track γ2 of the diskette γ, and then the converted headline data is read / read.
It is led to the head 10 via the write amplifier 101, and is recorded on the diskette γ by the head 10 (S6). After that, the process returns to step 0 again.

That is, the read / write switch B
When the heading data is input using the key switch 2, the heading data is recorded on the diskette γ, and unless the title editing key is turned off, the input heading data is displayed on the LCD.
It is displayed in the form of characters on the screen of No. 5.

However, if there is an access from the host computer β in the process of sequentially processing the above-mentioned program, the above-mentioned processing will be interrupted and interrupted, and when the interrupt ends, the above-mentioned processing will be executed again. Will be restarted.

Therefore, in the case of the device of this embodiment, the contents of the diskette γ can be examined without the need for the host computer β. Moreover, as long as the size of diskette γ is the same, the type of diskette γ (2
(D, 2DD, 2HD, etc.), the title and the like can be edited and searched regardless of the OS on the host computer β side when it is formatted, and it is very convenient for organizing the contents of the diskette γ. Moreover, since the existing components are fully used and the LCD 5 is used as the display unit C, a merit in terms of cost can be expected.

The flexible disk drive device according to the present invention is not limited to the above embodiment, and the control of reading or writing the header data on the diskette may be performed by another control circuit. The display unit may be a display other than the LCD.

[0023]

As described above, in the case of the flexible disk drive device according to the present invention, the heading data regarding the file name of the diskette can be freely written / read to / from the diskette, and the heading data recorded on the diskette can be read. Since it is configured to output externally, even if there are many types of files in the diskette, it is easy to understand the type and contents, and since it is not necessary to start the host computer, it is very convenient and practical. Has the advantage of being

[Brief description of drawings]

FIG. 1 is a block diagram of an apparatus according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a track on a diskette used in the apparatus of the embodiment.

FIG. 3 is a flow chart of a program for explaining the operation of the apparatus of the embodiment.

[Explanation of symbols]

 α FDD device 1 CPU A input unit 2 key switch B read / write changeover switch C display unit 5 LCD β host computer γ diskette γ1 track area managed by the host computer γ2 information track

Claims (1)

[Claims] 1. In a flexible disk drive device, which is a peripheral device of a host computer, a header data regarding a file name of the flexible disk is recorded for an information track other than an area managed by the host computer among all tracks of the flexible disk. A read / write switch for switching between writing and reading, an input unit for inputting the headline data from the outside, and a display unit for displaying the headline data to the outside, and the read / write switching When the switch indicates writing,
While the headline data input via the input unit is stored in the information track of the flexible disk, when the read / write changeover switch indicates reading, the headline stored in the information track of the flexible disk. A flexible disk drive device, wherein data is read and output to the display unit.