CN211125024U

CN211125024U - CDROM controller

Info

Publication number: CN211125024U
Application number: CN201920085381.6U
Authority: CN
Inventors: 张冉
Original assignee: Binzhou University
Current assignee: Binzhou University
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2020-07-28
Anticipated expiration: 2029-01-18

Abstract

A CDROM controller comprises a controller, a CDROM with an audio decoding circuit, a key and a display, the device is connected with the controller and the CDROM with the audio decoding circuit through an IDE line, then the effect of controlling by the key and driving the CDROM with the audio decoding circuit through the display is achieved through a special connection method of the controller, the device enables the old CDROM with the audio decoding circuit to be reused, and a new thought and a device are provided to utilize the old CDROM with the audio decoding circuit and enable the old CDROM to play a larger role.

Description

CDROM controller

Technical Field

The utility model relates to a CDROM controller.

Background

It is known that, since the development of computers, the updating of computer accessories becomes very frequent, but this does not represent the retired old accessories and is not used, on the contrary, they can also play a larger role to some extent, such as some CDROM still having audio decoding chip, this CDROM controller is actually to control the IDE port of old cd driver by means of control module, control its internal audio decoding circuit to work, push audio signal output, the working principle of controller is to imitate the computer to send out command to the cd driver and receive the return command of the cd driver.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical scheme who adopts to foretell technical problem does: a CDROM controller is characterized by comprising a CDROM with an audio decoder, a control module, an infrared remote control module, a flying wire, a bread board, an IDE transmission line, a power supply module, a key module and a display module, wherein the control module comprises an 89C52/S52 single chip microcomputer, the 89C52/S52 single chip microcomputer P00-P07 is connected with a control port of the display module, the P20-P24 is connected with a control input port of the key module, the P25-P27 and the P20-P17 are connected with an IDE data communication control port, the P30 port is IDE interface data communication, the P31 port is a working state indicator lamp of the single chip microcomputer, the P33 port is an infrared control data receiving port, the RESET is a RESET port of the single chip microcomputer, and the X1 and X2 ports are external oscillation circuit ports of the single chip microcomputer.

Preferably, the display module comprises a display, and the display is a 1062L CD display.

Preferably, the key module comprises a press cover, and the number of the keys is five.

Preferably, the power supply module comprises a 5V voltage stabilizing block formed by L M7805 voltage stabilizing modules.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect, has provided a CDROM controller, and the device is with the help of the IDE mouth of old-fashioned CD driver of single chip microcomputer control, and the audio decoding circuit inside it is controlled and is worked, and propelling movement audio signal output, the theory of operation of controller is really just that the imitation computer sends out the instruction to the CD driver, accepts the return instruction of CD driver, reacts and shows through 1602L CD display, carries out the human-computer interaction through 5 buttons and a display screen.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic diagram of the circuit structure of the present invention;

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

An embodiment, as shown in fig. 1, is a CDROM controller, including a CDROM with audio decoding, a control module, a flying line, a bread board, an IDE transmission line, a power module, a key module, and a display module, where the control module includes an 89C52/S52 single chip microcomputer, the 89C52/S52 single chip microcomputer P00-P07 is connected to a control port of the display module, the P20-P24 is connected to a control input port of the key module, the P25-P27 and the P20-P17 are connected to an IDE data communication control port, the P30 port is IDE interface data communication, the P31 port is a single chip microcomputer operating state indicator, the P33 port is an infrared control data receiving port, the RESET port is a single chip microcomputer RESET port, and the X1 and X2 ports are external oscillation circuit ports of the single chip microcomputer.

When the device is used, a bread board and a flying wire are adopted to manufacture a peripheral circuit, then all modules are connected, the IO port of an 89C52/S52 singlechip is used for controlling the work of an optical drive through an IDE interface of the optical drive, and the IDE interface is an external interface which is commonly used at present and mainly connected with a hard disk and the optical drive. The data transmission method adopts a 16-bit data parallel transmission mode, and has small volume and fast data transmission. One IDE interface can only connect two external devices.

Therefore, the control by the 89C52/S52 single chip microcomputer is supported, and an additional converter is not needed.

The peripheral circuit is easy to build, and the key lies in the program and the communication protocol of the optical drive. Therefore, it is not only easy to use

A section of the procedure is provided herein as a sample for reference.

The program can only be played by the optical drive, has no other functions, and is only used for debugging for the first time.

The full version of the controller comprises the functions of playing, last song, next song, time display, fast forward, fast backward and remote control by the optical drive, and meets most requirements of playing.

And adopt L M7805 voltage regulator module, the input voltage range is big, and singlechip operational environment is more excellent.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A CDROM controller is characterized by comprising a CDROM with an audio decoder, a control module, an infrared remote control module, a flying wire, a bread board, an IDE transmission line, a power supply module, a key module and a display module, wherein the control module comprises an 89C52/S52 single chip microcomputer, the 89C52/S52 single chip microcomputer P00-P07 is connected with a control port of the display module, the P20-P24 is connected with a control input port of the key module, the P25-P27 and the P20-P17 are connected with an IDE data communication control port, the P30 port is IDE interface data communication, the P31 port is a working state indicator lamp of the single chip microcomputer, the P33 port is an infrared control data receiving port, the RESET is a RESET port of the single chip microcomputer, and the X1 and X2 ports are external oscillation circuit ports of the single chip microcomputer.

2. The CDROM controller of claim 1, wherein said display module comprises a display, said display being a 1062L CD display.

3. The CDROM controller of claim 1, wherein the key module comprises five keys.

4. The CDROM controller of claim 1, wherein the power supply module comprises a 5V voltage regulator block formed by L M7805 voltage regulator modules.