CN202615798U - MP3 player based on single chip microcomputer - Google Patents
MP3 player based on single chip microcomputer Download PDFInfo
- Publication number
- CN202615798U CN202615798U CN 201220145387 CN201220145387U CN202615798U CN 202615798 U CN202615798 U CN 202615798U CN 201220145387 CN201220145387 CN 201220145387 CN 201220145387 U CN201220145387 U CN 201220145387U CN 202615798 U CN202615798 U CN 202615798U
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- chip microcomputer
- single chip
- player
- decoder
- usb
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Abstract
The utility model relates to an MP3 player based on a single chip microcomputer. The MP3 player comprises the single chip microcomputer, a USB (universal serial bus) interface chip, a keyboard, an LED (light emitting diode) display screen and a decoder, wherein the USB interface chip and the keyboard are connected with the single chip microcomputer and are used for being input into the single chip microcomputer, the LED display screen and the decoder are connected with the single chip microcomputer and are output from the single chip microcomputer, and the USB interface chip is further connected with a USB flash disc; and a memory of the MP3 player is separated from the decoder, by the adoption of the MP3 player, MP3 documents of high tone quality can be fluently played, the application of enlarging the capacity i.e. the storage capacity is increased on the basis of original hardware is realized, the application is greatly facilitated, and the cost is saved.
Description
Technical field
The utility model relates to a kind of SCM Based MP3 player.
Background technology
At present, the MP3 player has moved towards people's life, because its portable and characteristics cheaply occupy absolute leadership on the market of audio player.Demoder and storer in the existing MP3 player are incorporate, and the portability of this design and MP3 player has played critical effect, but meanwhile, have also brought some problems: such as the fixing difficult expansion of memory capacity.
Summary of the invention
The fundamental purpose of the utility model is to provide a kind of demoder to separate with storer, and tonequality is good, and has the MP3 player of the status information of keypress function and LED demonstration.
A kind of SCM Based MP3 player of the utility model; Comprise single-chip microcomputer; And link to each other with single-chip microcomputer and input to the USB interface chip and the keyboard of single-chip microcomputer, and the LED display and the demoder that link to each other with single-chip microcomputer and export by single-chip microcomputer, said USB interface chip also is connected with USB flash disk.
As optimized technical scheme, be provided with RAM in the said single-chip microcomputer.
As optimized technical scheme, said demoder also is connected with amplifier and earphone.
The SCM Based MP3 player of the utility model has the following advantages: the storer of MP3 player separates with demoder; Can play out the mp3 file of high tone quality glibly; Can also make the application of increase capacity on original hardware foundation, increase memory capacity; Be very easy to application, provide cost savings.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following specific embodiment and accompanying drawing:
Fig. 1 is the circuit block diagram of the SCM Based MP3 player of the utility model.
Embodiment
As shown in Figure 1; A kind of SCM Based MP3 player of the utility model; Comprise single-chip microcomputer; And link to each other with single-chip microcomputer and input to the USB interface chip and the keyboard of single-chip microcomputer, and the LED display and the demoder that link to each other with single-chip microcomputer and export by single-chip microcomputer, said USB interface chip also is connected with USB flash disk.After the system start-up; Single-chip microcomputer is through the USB interface chip; From USB flash disk, obtain the MP3 format file data; And deposit among the RAM and cushion, single-chip microcomputer is regularly delivered to the MP3 audio decoder with data from buffer zone then, realizes that decoding also exports to earphone or active loundspeakers through the amplifier output audio signal.The user can realize that " startup ", " a last song ", " next song ", " volume control " reach functions such as " stopping " through keyboard, and broadcast state information is shown through the LCD display screen.
Wherein, be provided with RAM in the said single-chip microcomputer, said demoder also is connected with amplifier and earphone.
The SCM Based MP3 player of the utility model has the following advantages: the storer of MP3 player separates with demoder; Can play out the mp3 file of high tone quality glibly; Can also make the application of increase capacity on original hardware foundation, increase memory capacity; Be very easy to application, provide cost savings.
The foregoing description; It is an instance of the utility model; Be not enforcement and the interest field that is used for limiting the utility model, all or technical schemes of being equal to identical with the said content of the utility model claim all should be included in the utility model protection domain.
Claims (3)
1. SCM Based MP3 player; It is characterized in that: comprise single-chip microcomputer; And link to each other with single-chip microcomputer and input to the USB interface chip and the keyboard of single-chip microcomputer, and the LED display and the demoder that link to each other with single-chip microcomputer and export by single-chip microcomputer, said USB interface chip also is connected with USB flash disk.
2. SCM Based MP3 player according to claim 1 is characterized in that: be provided with RAM in the said single-chip microcomputer.
3. SCM Based MP3 player according to claim 1, it is characterized in that: said demoder also is connected with amplifier and earphone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220145387 CN202615798U (en) | 2012-04-09 | 2012-04-09 | MP3 player based on single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220145387 CN202615798U (en) | 2012-04-09 | 2012-04-09 | MP3 player based on single chip microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202615798U true CN202615798U (en) | 2012-12-19 |
Family
ID=47349474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220145387 Expired - Fee Related CN202615798U (en) | 2012-04-09 | 2012-04-09 | MP3 player based on single chip microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202615798U (en) |
-
2012
- 2012-04-09 CN CN 201220145387 patent/CN202615798U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20130409 |