JPH054745B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a servo signal writing device, and particularly to a servo signal writing device for writing a servo pattern for positioning a head of a magnetic disk device.

[Common technology]

Generally, a servo signal writing device for a magnetic disk device has a mechanism section that controls the mounting of the magnetic disk, and the mechanism section includes a mechanism for firmly fixing and removing the magnetic disk device on a mechanism base, and a mechanism for writing and removing the magnetic disk device. It is equipped with a mechanism for loading and unloading the read head onto and from the magnetic disk plate. The fixing/unloading mechanism of these magnetic disk devices or the loading/unloading mechanism of the head are often automated from the viewpoint of work efficiency.

[Conventional technology]

In conventional servo signal writing devices, in order to automatically operate the fixing/removing mechanism of a magnetic disk drive or the loading/unloading mechanism of a head, for example, a random logic circuit is assembled or an assemble command from a microcomputer is used. I went with a combined program.

[Problem that the invention seeks to solve]

In the conventional servo signal writing device described above, when the target magnetic disk device changes, the structure of the mechanism changes to match the shape of the magnetic disk device, and the random logic circuit or microcomputer program must be changed each time. The drawback was that it had to take a lot of time.

[Means for solving problems]

The servo signal writing device of the present invention includes a key input section, a display output section, a floppy disk device that stores a program stored in a storage section in a control section on a floppy disk, and an output from the control section. It consists of an interface section that transmits commands to the mechanical section or status signals of each part of the mechanical section to the control section, and a read/write circuit that reads or writes to the magnetic disk device on the mechanical section according to commands from the control section. , the control procedures for fixing and removing the magnetic disk device, loading and unloading operations of the magnetic head, and spindle rotation and stopping operations of the magnetic disk device are expressed as a combination of several types of instructions, and the instructions are stored in the storage section of the control section. It is configured to include means for storing the instruction, successively reading and interpreting the instruction at the time of execution, converting it into an executable instruction, and executing the instruction.

〔Example〕

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

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

A control unit 4, which connects a key input unit 1, a display output unit 2, and a floppy disk device 3, has a microcomputer inside, for example, and controls a mechanism unit 6 via an interface unit 5, as well as reading and
A command is issued to the write circuit 7 to write a specified servo signal into the magnetic disk device mounted on the mechanism section 6.

The part of the microcomputer program in the control unit 4 that controls the mechanism unit 6 is programmed using a simple program suitable for mechanism control as shown in Figure 3, using the procedure shown in Figure 2a, for example. Perform a combination of commands. At the time of execution, the instructions are converted into executable machine language instructions and executed according to the procedure shown in FIG. 2b.
In the schematic flowchart of the servo signal writing device shown in FIG. 4, the magnetic disk device fixing sequence, head loading sequence, spindle rotation sequence, spindle stop sequence, head unloading sequence, and magnetic disk device removal sequence are assembled in the steps shown in FIG. , is the part that is executed. The instructions stored in the storage section in the control section 4 are stored in the floppy disk by the floppy disk device 3, and the mechanism control instructions stored in the floppy disk are stored in the storage section in the control section 4 at the next time of use. It reads the instructions again, interprets and executes the instructions sequentially, and controls the mechanism section 6.

〔Effect of the invention〕

The servo signal writing device of the present invention is provided with means for realizing a control procedure by a combination of several types of simple commands suitable for mechanism control in the control section of the mechanism section, so that the control procedure can be changed by changing the mechanism section. This has the advantage that control procedures can be created easily and control procedures can be created in a short time even when a new mechanism is manufactured.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention;
Figures 2 to 4 show the processing procedure of the present invention, and Figure 2a,
FIG. 3 is an example of a mechanism control command, and FIG. 4 is a schematic flow chart of a servo signal writing device. 1...Key input section, 2...Display output section, 3...
Floppy disk device, 4...control unit, 5...
Interface section, 6... mechanical section, 7... read/write circuit.

Claims (1)

[Claims] 1. A key input section, a display output section, a floppy disk device for storing a program stored in a storage section in a control section on a floppy disk, and a floppy disk device for transmitting output commands from the control section to a mechanism section. an interface section that transmits status signals of each section to the control section; a read/write circuit that performs reading or writing operations to the magnetic disk device on the mechanical section according to commands from the control section; The control procedures for the removal operation, the loading and unloading operations of the magnetic head, and the spindle rotation and stopping operations of the magnetic disk device are expressed as a combination of several types of instructions, and the instructions are stored in the storage section in the control section and executed when executed. 1. A servo signal writing device comprising an instruction execution means for successively reading and interpreting instructions, converting them into executable instructions, and executing the instructions.