CN2874626Y - MTV player compact flash storage card control circuit device - Google Patents
MTV player compact flash storage card control circuit device Download PDFInfo
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- CN2874626Y CN2874626Y CN 200520060398 CN200520060398U CN2874626Y CN 2874626 Y CN2874626 Y CN 2874626Y CN 200520060398 CN200520060398 CN 200520060398 CN 200520060398 U CN200520060398 U CN 200520060398U CN 2874626 Y CN2874626 Y CN 2874626Y
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Abstract
The utility model relates to a compact flash memory card control circuit device for MTV player with flash memory as storage media and provides a flash memory as storage medium to speed up MTV player transmission and read-write. In detail, the power source output terminal is connected with CPU. The flash memory is connected with a compact flash memory drive to switch flash interface into standard interface. In addition, the compact flash memory drive communicates with CPU and the power source output terminal is connected with the compact flash memory drive. IDE-DMA (Integrated device electronics-direct memory access) drive mode adopted by the utility model realizes IDE read-write, integrates circuits into the machine and lessens the overall machine size.
Description
Technical field
The utility model relates to a kind of MTV player (MTV Player), particularly relates to MTV player (MTV Player) the operation circuit device of a kind of FLASH of use storer as Storage Media.
Background technology
(MTV Player) is different with MP3 and MP4 for the MTV player, it has a little color LCD screen, the flash memory that uses vast capacity is as storer, MTV player (MTVPlayer) is a kind of new audio/video file video player, but video files such as movie, DVD, VCD, MTV, support the audio-visual formatted file of multiple difference to play, for example the audio/video file of forms such as MPEG-4, ASF, WMV, RM, DAT.Compatible MP3, the WMA form music play of MTV player (MTV Player), support voice recording (Voice Recording), line recording function (Line-in), plug and play USB flash disk function.MTV player (MTVPlayer) great majority on the market are to adopt HDD or CFC compact flash card (Compact FlashCard) as storer at present, but because the very big volume of machine that causes of volume is very big, so improved necessity.
Summary of the invention
The utility model purpose is to provide the built-in FLAH storer of a kind of employing as Storage Media, connect the control chip mode with built-in CFC compact flash card (Compact Flash Card) interface and control the action of FLASH storage access, make MTV player (MTVPlayer) transmission, read or write speed fast, and reduce the volume of complete machine.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of MTV player compact flash storage card operation circuit device, contain one the power supply of electric energy, a cpu central processing unit are provided, power output end connects cpu central processing unit, a FLASH storer that is used for storing digital information, the FLASH storer connects a compact flash driver that the FLASH interface is transferred to the compact flash interface of standard, the compact flash driver connects cpu central processing unit, and power output end connects the compact flash driver.
The utility model adopts high-performance FLASH storer control chip to control multi-disc FLASH read-write operation, and compact flash (Compact Flash) interface that the FLASH interface transfers standard to is connected with the ide interface of master chip, transmission speed is fast, and it is set to TureIDE (true integrated device electronics) pattern, in system, the Flash storage space is mounted among the romfs (read-only small documents system) of uclinux (Micro-Control-Linux " linux system that designs at the microcontroller field ") with the IDE apparatus-form, the IDE-DMA of employing system (Integrated Device Electronics-Direct MemoryAccess " integrated device electronics-direct memory access (DMA) ") type of drive realizes the read-write operation to IDE equipment, thereby realize read-write operation to Flash, make read or write speed faster, improved the broadcast performance of this machine; Circuit is incorporated into dwindles the volume that the shared space of standard compact flash (Compact Flash) card reduces machine on the machine.
Description of drawings
Fig. 1 is the circuit structure block scheme of the utility model embodiment.
Fig. 2 is the circuit diagram of the utility model Embodiment C FC part.
Fig. 3 is the process flow diagram of the utility model Embodiment C FC part.
Described CFC refers to compact flash card (Compact Flash Card).
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
The utility model parts comprise: LTPS low temperature polycrystalline silicon display screen 1; LTPS low temperature polycrystalline silicon driver 2; cpu central processing unit 3; electric weight testing circuit 4; mu balanced circuit 5; power supply 6; charging management chip 7; SDRAM image program storer 8; SDRAM system program storer 9; the 2nd FLASH storer 10; USB universal series bus control chip 11; button 12; FLASH storer 13; compact flash driver 14; USB changes (ATA) advanced techniques attachment device interface 15; usb 16; EEPROM electricallyerasable ROM (EEROM) 17; S terminal 18; earphone output 19; earphone socket 20; audio frequency D/A or mould/number conversion chip 21; microphone 22; audio frequency input 23; audio frequency output 24; video output 25; direct current USB charger 26.
The utility model contains a power supply 6 that electric energy is provided, a cpu central processing unit 3, power supply 6 output terminals connect cpu central processing unit 3, a FLASH storer 13 that is used for storing digital information, FLASH storer 13 connects a compact flash driver 14 that the FLASH interface is transferred to compact flash (Compact Flash) interface of standard, compact flash driver 14 connects cpu central processing unit 3, and power supply 6 output terminals connect compact flash driver 14.
Cpu central processing unit 3 input ends connect button 12, and cpu central processing unit 3 output terminals connect S terminal 18, USB changes (ATA) advanced techniques attachment device interface 15, and ATA is meant " advanced techniques attachment device " (Advanced TechnologyAttachment).USB changes the EEPROM electricallyerasable ROM (EEROM) 17 that (ATA) advanced techniques attachment device interface 15 connects its working procedure of storage, USB changes (ATA) advanced techniques attachment device interface 15 and connects usb 16, and USB changes (ATA) advanced techniques attachment device interface 15 message of usb 16 and extraneous exchange is delivered to Flash storer 13 by compact flash driver 14.Cpu central processing unit 3 output analog video signals are given LTPS low temperature polycrystalline silicon driver 2, the LTPS low temperature polycrystalline silicon refers to (LOW TEMPERATUREPOLYSILICON), and LTPS low temperature polycrystalline silicon driver 2 output terminals connect the LTPS low temperature polycrystalline silicon display screen 1 of display image.
Cpu central processing unit 3 connects SDRAM image program storer 8, SDRAM system program storer 9, the 2nd FLASH storer 10, cpu central processing unit 3 accesses system program from the 2nd FLASH storer 10 and puts into SDRAM system program storer 9, cpu central processing unit 3 accesses image program from the 2nd FLASH storer 10 and puts into SDRAM image program storer 8, and SDRAM is (a SYNCHRONOUS DYNAMIC RANDOMACCESS MEMORY synchronous DRAM).Cpu central processing unit 3 is through compact flash driver 14 serial connection FLASH storeies 13, cpu central processing unit 3 accesses the message of FLASH storer 13 through compact flash driver 14, cpu central processing unit 3 serial connection SDRAM system program storeies 9, the message that accesses is put into SDRAM system program storer 9 to cpu central processing unit 3 and through cpu central processing unit 3 decodings, the image of cpu central processing unit 3 decodings is presented at LTPS low temperature polycrystalline silicon display screen 1.The data sound signal of cpu central processing unit 3 is converted to analogue audio frequency and exports 19 from earphone through high frequency D/A or mould/number conversion chip 21; the audio frequency of cpu central processing unit 3 is imported 23 interfaces and is connected microphone 22 by high frequency D/A or mould/number conversion chip 21; voice signal produces to enter audio frequency D/A or mould/number conversion chip 21 amplifications and carry out ADC through microphone 22 and is converted to data-signal, handles through cpu central processing unit 3 and imports FLASH storer 13 into.Cpu central processing unit 3 connects the USB universal series bus control chip 11 of control read-write operation, and USB universal series bus control chip 11 connects usb 16, and the USB USB (universal serial bus) is also referred to as " USB HOST ".
12 " POWER " that after machine is connected with the mains 6 (lithium batteries), push button start, power supply is given the each several part circuit supply after mu balanced circuit 5 step-downs, at power supply 6 (lithium battery) when voltage is not enough, charge through 7 pairs of power supplys 6 of charging management chip (lithium battery) with additional power source direct current USB charger 26, during the machine operate as normal, electric weight testing circuit 4 can detect power supplys 6 (lithium battery) thereby electric weight and feed back to cpu central processing unit 3 and show electric weight.
When start, cpu central processing unit 3 accesses system program from the 2nd FLASH storer 10 and puts into SDRAM system program storer 9 and image program and put into SDRAM image program storer 8 and operation, after various program run are normal, give LTPS low temperature polycrystalline silicon driver 2 from cpu central processing unit 3 output analog video signals, and making LTPS low temperature polycrystalline silicon display 1 display image, vision signal can also externally be exported through S terminal 18 terminals.When playing MP3 song and MP4 program, cpu central processing unit 3 meeting process compact flash drivers 14 and FLASH storer 13 access message puts into SDRAM system program storer 9, and after cpu central processing unit 3 decodings, image shows through LTPS low temperature polycrystalline silicon display screen 1; The data sound signal is converted to analogue audio frequency and exports 19 from earphone through audio frequency D/A or mould/number conversion chip 21.
External output audio is from earphone socket 20 outputs.Voice signal produces through microphone 22, enters audio frequency D/A or mould/number conversion chip 21 amplifications and carry out ADC to be converted to data-signal, handles depositing FLASH storer 13 in through cpu central processing unit 3.Upload or download when usb 16 is connected with PC, signal changes 14 controls of 15 pairs of compact flash drivers of (ATA) advanced techniques attachment device interface by USB, and then upload, download data 13 li of computer and Flash storeies, the working procedure that USB changes (ATA) advanced techniques attachment device interface 15 is transferred from the read-only memory access 17 of EEPROM electric erasable and is come.During plug-in other subordinate memory device (USB flash disk, MP3 player, All-in-One card reader, USB mobile hard disc box or digital camera), cpu central processing unit 3 control USB universal series bus control chip 11 are carried out read-write operation.Signal at first via USB communications protocol, simulation framework signal, send IP and give the subordinate memory device, by usb 16 switching equipment signal and setting signal are described after, successfully link.
This machine adopts high-performance FLASH storer 13 control chips to control multi-disc FLASH read-write operation, and compact flash (Compact Flash) interface that the FLASH interface transfers standard to is connected with the ide interface of cpu central processing unit 3 by compact flash driver 14, it is set to TureIDE (true integrated device electronics) pattern, in system, FLASH storer 13 storage spaces are mounted among the romfs (read-only small documents system) of uclinux (Micro-Control-Linux " linux system that designs at the microcontroller field ") with the IDE apparatus-form, the IDE-DMA of employing system (Integrated DeviceElectronics-Direct Memory Access " integrated device electronics-direct memory access (DMA) ") type of drive realizes the read-write operation to IDE equipment, thereby realizes that read-write to FLASH storer 13 is (referring to Fig. 2, Fig. 3).The ide interface of cpu central processing unit 3 has been adopted in this operation, and transmission speed is fast, adds to use dma mode to make read or write speed faster, has improved the broadcast performance of this machine; Secondly, the RSB2.0 chip of USBTOICE can directly ide interface be continuous therewith, PC-LINK process PC end can directly carry out read-write operation to it, need not to see through cpu central processing unit 3, improve the data rate of this machine, at last circuit is incorporated into and dwindles the shared space of standard C FC compact flash card (Compact FlashCard) on the machine and reduce the volume of machine.
Above illustrated embodiment is only with for conveniently illustrating the utility model, be not that the utility model is done any pro forma restriction, have in the technical field under any and know the knowledgeable usually, if in the scope that does not break away from technical characterictic that the utility model is carried, utilize technology contents that the utility model discloses to do the local equivalent embodiment that changes or modify, and do not break away from technical characterictic content of the present utility model, all still belong in the scope of the utility model technical characterictic.
Claims (9)
1, a kind of MTV player compact flash storage card operation circuit device, contain a power supply (6) that electric energy is provided, a cpu central processing unit (3), power supply (6) output terminal connects cpu central processing unit (3), it is characterized in that: a FLASH storer (13) that is used for storing digital information, described FLASH storer (13) connects a compact flash driver (14) that the FLASH interface is transferred to the compact flash interface of standard, described compact flash driver (14) connects cpu central processing unit (3), and power supply (6) output terminal connects compact flash driver (14).
2, MTV player compact flash storage card operation circuit device according to claim 1, it is characterized in that: described cpu central processing unit (3) input end connects button (12), cpu central processing unit (3) output terminal connects S terminal (18), USB changes ATA advanced techniques attachment device interface (15), USB changes the EEPROM electricallyerasable ROM (EEROM) (17) that ATA advanced techniques attachment device interface (15) connects its working procedure of storage, USB changes ATA advanced techniques attachment device interface (15) and connects USB interface (16), and USB changes ATA advanced techniques attachment device interface (15) message of USB interface (16) and extraneous exchange is delivered to Flash storer (13) by compact flash driver (14).
3, MTV player compact flash storage card operation circuit device according to claim 1, it is characterized in that: described cpu central processing unit (3) output analog video signal is given LTPS low temperature polycrystalline silicon driver (2), and LTPS low temperature polycrystalline silicon driver (2) output terminal connects the LTPS low temperature polycrystalline silicon display screen (1) of display image.
4, MTV player compact flash storage card operation circuit device according to claim 1, it is characterized in that: described power supply (6) input end connects direct current USB charger (26) through charging management chip (7), power supply (6) output terminal connects electric weight testing circuit (4) and mu balanced circuit (5), power supply (6) connects cpu central processing unit (3) after by mu balanced circuit (5) step-down, LTPS low temperature polycrystalline silicon driver (2), compact flash driver (14), the 2nd FLASH storer (10), cpu central processing unit (3) connects the electric weight testing circuit (4) that can detect power supply (6) electric weight, and described power supply (6) is a lithium battery.
5, MTV player compact flash storage card operation circuit device according to claim 1; it is characterized in that: described cpu central processing unit (3) is provided with audio frequency input (23) interface, audio frequency output (24) interface, video output (25) interface; audio frequency output (24) interface of cpu central processing unit (3) connects earphone socket (20), earphone output (19) by high frequency D/A or mould/number conversion chip (21), and video output (25) interface of cpu central processing unit (3) connects the S terminal (18) of external outputting video signal.
6, MTV player compact flash storage card operation circuit device according to claim 1, it is characterized in that: described cpu central processing unit (3) connects SDRAM image program storer (8), SDRAM system program storer (9), the 2nd FLASH storer (10), cpu central processing unit (3) accesses system program from the 2nd FLASH storer (10) and puts into SDRAM system program storer (9), and cpu central processing unit (3) accesses image program from the 2nd FLASH storer (10) and puts into SDRAM image program storer (8).
7, MTV player compact flash storage card operation circuit device according to claim 1, it is characterized in that: described cpu central processing unit (3) is through compact flash driver (14) serial connection FLASH storer (13), cpu central processing unit (3) serial connection SDRAM system program storer (9), cpu central processing unit (3) serial connection LTPS low temperature polycrystalline silicon display screen (1).
8; MTV player compact flash storage card operation circuit device according to claim 1; it is characterized in that: the data sound signal of described cpu central processing unit (3) is converted to analogue audio frequency and exports (19) from earphone through high frequency D/A or mould/number conversion chip (21); audio frequency input (23) interface of cpu central processing unit (3) connects microphone (22) by high frequency D/A or mould/number conversion chip (21); voice signal produces through microphone (22) and enters audio frequency D/A or mould/number conversion chip (21) and amplify and carry out ADC and be converted to data-signal, handles through cpu central processing unit (3) and imports FLASH storer (13) into.
9, MTV player compact flash storage card operation circuit device according to claim 1, it is characterized in that: described cpu central processing unit (3) connects the USB universal series bus control chip (11) of control read-write operation, and USB universal series bus control chip (11) connects USB interface (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520060398 CN2874626Y (en) | 2005-06-29 | 2005-06-29 | MTV player compact flash storage card control circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520060398 CN2874626Y (en) | 2005-06-29 | 2005-06-29 | MTV player compact flash storage card control circuit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874626Y true CN2874626Y (en) | 2007-02-28 |
Family
ID=37781222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520060398 Expired - Fee Related CN2874626Y (en) | 2005-06-29 | 2005-06-29 | MTV player compact flash storage card control circuit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874626Y (en) |
-
2005
- 2005-06-29 CN CN 200520060398 patent/CN2874626Y/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: 20070228 |