CN204272318U - EMMC tool and television system - Google Patents
EMMC tool and television system Download PDFInfo
- Publication number
- CN204272318U CN204272318U CN201420801501.5U CN201420801501U CN204272318U CN 204272318 U CN204272318 U CN 204272318U CN 201420801501 U CN201420801501 U CN 201420801501U CN 204272318 U CN204272318 U CN 204272318U
- Authority
- CN
- China
- Prior art keywords
- emmc
- pin
- data
- flash card
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 62
- 239000003990 capacitor Substances 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 101001003569 Homo sapiens LIM domain only protein 3 Proteins 0.000 description 4
- 101000639972 Homo sapiens Sodium-dependent dopamine transporter Proteins 0.000 description 4
- 102100026460 LIM domain only protein 3 Human genes 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 208000035795 Hypocalcemic vitamin D-dependent rickets Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 208000033584 type 1 vitamin D-dependent rickets Diseases 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The utility model discloses a kind of EMMC tool, this EMMC tool comprises interface circuit, protocol conversion circuitry and program storing circuit; Described interface circuit comprises data-interface, and described program storing circuit comprises the EMMC chip to be measured of the main program to be measured storing television set; Described protocol conversion circuitry reads the data in the main program to be measured of described EMMC chip-stored to be measured, and the data in described main program to be measured is converted to the data that described data-interface can identify; Described data-interface for connecting the FPDP of television set, to provide described main program to be measured to the main control chip in TV SKD, to verify the correctness of data in described main program to be measured.The invention also discloses a kind of television system, comprise television set and above-mentioned EMMC tool.The utility model can improve the detection efficiency of TV main program, strengthens the versatility of EMMC chip to be measured, avoids the wasting of resources.
Description
Technical field
The utility model relates to electronic equipment Performance Detection technical field, particularly relates to a kind of EMMC tool and television system.
Background technology
EMMC (Embedded Multi Media Card, embedded multi-media card) chip is a kind of chip possessing MMC agreement ordered by MMC (Multi Media Card, multimedia card) association.
EMMC chip is made up of an embedded storage solution, and with MMC interface, flash memory device and master controller, adopt small-sized BGA package, interface rate is up to 52MB per second.
The function of EMMC and advantage:
(1) comprise storage and replace the power up function of NOR Flash (stochastic pattern non-volatile flash memory);
(2) compatible strong, the design of memory can be simplified;
(3) renewal speed is fast, can the research and development speed of expedite product.
Because EMMC chip has above advantage, the FLASH chip before replacing gradually is in TV domain extensive use, and the main program of current television set is all be stored in the EMMC chip in TV SKD.After television set receives operational order, the corresponding data operation television set transferred according to instruction in EMMC chip is performed relevant action by the main control chip (i.e. CPU) on mainboard, if the main program data exception in EMMC chip, functions of television set will be caused abnormal, affect product quality.Therefore television manufacturer needs when the product of development of new repeatedly to verify (a general new product needed verifies tens times even up to a hundred times) the accuracy of the main program data left in EMMC chip, verify qualified after could use by batch.The verification method of current employing has two kinds:
Burning is directly had the EMMC chips welding of television set main program in TV SKD by the instrument and equipment of method one, use specialty, be assembled into the correctness that complete machine carries out start inspection main program, and each checking needs correspondence to change EMMC chip in TV SKD;
Method two, according to different TV SKD make start tool, namely the EMMC stand that EMMC chip is special is set on mainboard, EMMC chip is arranged on EMMC stand, drawn the relevant pins of EMMC chip by each stitch of EMMC stand, be assembled into the correctness that complete machine carries out start inspection main program.
The defect that above method exists:
Adopt the method directly changing EMMC chip in TV SKD, because EMMC chip adopts BGA package, artificial directly welding cannot be adopted, professional operator is needed to use the more exchange device of specialty to change, and replacing construction is long, inefficiency, and the EMMC chip pulled down cannot reuse, and causes the waste of resource.
Adopt the method for start tool, due to the main control chip of different television sets, function is different, corresponding motherboard design also has larger difference, different mainboard needs to make different start tools, and mainboard is started shooting after eliminating, tool also can be eliminated, and the update of TV SKD is very fast, seriously causes the waste of resource.
Utility model content
Main purpose of the present utility model is to provide a kind of EMMC tool and television system, is intended to the detection efficiency improving TV main program, and strengthens the versatility of EMMC chip to be measured, avoid the wasting of resources.
In order to achieve the above object, the utility model provides a kind of EMMC tool, and described EMMC tool comprises interface circuit, protocol conversion circuitry and program storing circuit; Described interface circuit comprises data-interface, and described program storing circuit comprises the EMMC chip to be measured of the main program to be measured storing television set;
Described protocol conversion circuitry reads the data in the main program to be measured of described EMMC chip-stored to be measured, and the data in described main program to be measured is converted to the data that described data-interface can identify; Described data-interface for connecting the FPDP of television set, to provide described main program to be measured to the main control chip in TV SKD, to verify the correctness of data in described main program to be measured.
Preferably, described EMMC tool is provided with EMMC stand, described EMMC chip to be measured is arranged on described EMMC stand, each pin of described EMMC chip to be measured is corresponding with each stitch of described EMMC stand to be connected, and described EMMC chip to be measured is connected with described protocol conversion circuitry by described EMMC stand.
Preferably, described EMMC chip to be measured comprises an EMMC data pin, the 2nd EMMC data pin, the 3rd EMMC data pin, the 4th EMMC data pin, the 5th EMMC data pin, the 6th EMMC data pin, the 7th EMMC data pin, the 8th EMMC data pin, EMMC reset pin, EMMC command set pin, EMMC clock pins, EMMC power protection pin and EMMC data strobe pin;
A described EMMC data pin, the 2nd EMMC data pin, the 3rd EMMC data pin, the 4th EMMC data pin, the 5th EMMC data pin, the 6th EMMC data pin, the 7th EMMC data pin, the 8th EMMC data pin are connected with an EMMC power supply via a pull-up resistor respectively, and connect via a current-limiting resistance is corresponding with 8 flash card data terminals of described protocol conversion circuitry respectively; Described EMMC reset pin is connected with the flash card power end of described protocol conversion circuitry via a current-limiting resistance, and via a filter capacitor ground connection; Described EMMC command set pin is connected with described EMMC power supply via a pull-up resistor, and is connected with the flash card order end of described protocol conversion circuitry via a current-limiting resistance; Described EMMC clock pins is connected with the flash card clock end of described protocol conversion circuitry via a current-limiting resistance, and via a filter capacitor ground connection; Described EMMC power protection pin is via a filter capacitor ground connection, and described EMMC data strobe pin is via a grounding through resistance.
Preferably, described protocol conversion circuitry comprises flash card and reads chip, and described flash card reads chip and comprises the first flash card data pin, the second flash card data pin, the 3rd flash card data pin, the 4th flash card data pin, the 5th flash card data pin, the 6th flash card data pin, the 7th flash card data pin, the 8th flash card data pin, flash card power pins, flash card command pin, flash card clock pins, positive differential data pin and minus tolerance divided data pin;
Described first flash card data pin, the second flash card data pin, the 3rd flash card data pin, the 4th flash card data pin, the 5th flash card data pin, the 6th flash card data pin, the 7th flash card data pin and the 8th flash card data pin are corresponding with 8 EMMC data terminals of described program storing circuit to be respectively connected; Described flash card power pins is connected with the reset terminal of described program storing circuit, described flash card command pin is connected with the command set end of described program storing circuit, described flash card clock pins is connected with the clock end of described program storing circuit, and described positive differential data pin and minus tolerance divided data pin are all connected to described data-interface.
Preferably, described data-interface is USB interface, and described USB interface is for connecting the USB port of television set; Described USB interface comprises USB power source pin, data wire positive pole pin, data wire negative pole pin and grounding pin;
Described USB power source pin is connected with a USB power supply, described data wire positive pole pin is connected with the positive differential data transmission terminal of described protocol conversion circuitry, described data wire negative pole pin is connected with the negative positive differential data transmission terminal of described protocol conversion circuitry, described grounding pin ground connection.
Preferably, described interface circuit also comprises the first power filtering capacitor and second source filter capacitor; The positive pole of described first power filtering capacitor is connected with described USB power supply, and be connected with the USB power source pin of described USB interface, the minus earth of described first power filtering capacitor, described second source filter capacitor is in parallel with described first power filtering capacitor.
In order to achieve the above object, the utility model also provides a kind of television system, and described television system comprises television set and EMMC tool; Described EMMC tool comprises interface circuit, protocol conversion circuitry and program storing circuit; Described interface circuit comprises data-interface, and described program storing circuit comprises the EMMC chip to be measured of the main program to be measured storing television set;
Described protocol conversion circuitry reads the data in the main program to be measured of described EMMC chip-stored to be measured, and the data in described main program to be measured is converted to the data that described data-interface can identify; Described data-interface for connecting the FPDP of television set, to provide described main program to be measured to the main control chip in TV SKD, to verify the correctness of data in described main program to be measured.
Preferably, described television set is provided with sense switch button, described main control chip is when detecting that described sense switch button is pressed, the main program to be measured of EMMC chip-stored to be measured in described EMMC tool is loaded, to verify the correctness of data in described main program to be measured by described FPDP.
Preferably, described FPDP is USB port, and described data-interface is the USB interface with described USB port adaptation.
The EMMC tool that the utility model provides and television system, the FPDP of television set is connected by the data-interface of EMMC tool, make when needing the correctness of the main program to be measured verifying EMMC chip-stored to be measured, the main program to be measured of EMMC chip-stored to be measured in EMMC tool directly can be loaded by the FPDP of television set, make when carrying out multiple authentication to the main program of television set, without the need to changing the original EMMC chip in TV SKD, thus the detection efficiency of TV main program can be improved, and avoid the wasting of resources; Meanwhile, make EMMC chip to be measured can be applied to dissimilar TV SKD, strengthen the versatility of EMMC chip to be measured, solve tradition and in TV SKD, make supporting start tool mode and cause problem of resource waste.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model EMMC tool one embodiment.
Fig. 2 is the electrical block diagram of utility model EMMC tool one embodiment;
Fig. 3 is the structural representation of utility model television system one embodiment.
The realization of the purpose of this utility model, functional characteristics and advantage, will in conjunction with the embodiments, and be described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of EMMC tool.
With reference to the structural representation that Fig. 1, Fig. 1 are the utility model EMMC tool one embodiment.
In one embodiment, EMMC tool 100 of the present utility model comprises interface circuit 110, protocol conversion circuitry 120 and program storing circuit 130; Interface circuit 110 comprises data-interface 111, and program storing circuit 130 comprises EMMC chip 131 to be measured, and this EMMC chip 131 to be measured stores the main program to be measured of television set.
Protocol conversion circuitry 120 reads the data in the main program to be measured that EMMC chip 131 to be measured stores, and the data in this main program to be measured is converted to the data that data-interface 111 can identify; The data-interface 111 of interface circuit 110 for connecting the FPDP of television set, to provide main program to be measured to the main control chip in TV SKD, to verify the correctness of data in this main program to be measured.
When needing to verify the correctness of the main program to be measured stored in EMMC chip 131 to be measured, the EMMC tool 100 being provided with EMMC chip 131 to be measured can be connected to television set, particularly, connect corresponding with the FPDP of television set for the data-interface 111 of EMMC tool 100, protocol conversion circuitry 120 reads the data in the main program to be measured of EMMC chip 131 to be measured storage, and the data that the data-interface 111 that the data in main program to be measured are converted to television set can identify, EMMC chip 131 to be measured in EMMC tool 100 is communicated with the main control chip on the mainboard of television set, thus make the main control chip in television set can load by FPDP the main program to be measured stored in EMMC chip 131 to be measured, loaded main program to be measured is verified, with when main program to be measured is verified, this main program to be measured is utilized to start television set.
EMMC tool 100 of the present utility model and television system, the FPDP of television set is connected by the data-interface 111 of EMMC tool 100, make when needing the correctness verifying the main program to be measured that EMMC chip 131 to be measured stores, directly can load by the FPDP of television set the main program to be measured that in EMMC tool 100, EMMC chip 131 to be measured stores, make when carrying out multiple authentication to the main program of television set, without the need to changing the original EMMC chip on the mainboard of television set, thus the detection efficiency of TV main program can be improved, and avoid the wasting of resources; Simultaneously, make EMMC chip 131 to be measured can be applied to the mainboard of dissimilar television set, namely TV SKD that can be compatible dissimilar, strengthen the versatility of EMMC chip 131 to be measured, solve tradition and on the mainboard of television set, make supporting start tool mode and cause problem of resource waste.
Particularly, EMMC tool 100 is provided with EMMC stand (scheming not shown), EMMC chip 131 to be measured is arranged on EMMC stand, each pin of EMMC chip 131 to be measured is corresponding with each stitch of EMMC stand to be connected, and EMMC chip 131 to be measured is connected with protocol conversion circuitry 120 by EMMC stand.
By arranging EMMC stand on EMMC tool 100, EMMC chip 131 to be measured is installed, be convenient to the main program to be measured to EMMC chip 131 burning television set to be measured, upgrade the main program to be measured in EMMC chip 131 to be measured, also be convenient to change EMMC chip 131 to be measured, and do not need the mainboard changing television set.
Refer again to Fig. 2, Fig. 2 is the electrical block diagram of utility model EMMC tool 100 1 embodiment.
As shown in Figure 2, EMMC chip 131 to be measured comprises an EMMC data pin DAT0, the 2nd EMMC data pin DAT1, the 3rd EMMC data pin DAT2, the 4th EMMC data pin DAT3, the 5th EMMC data pin DAT4, the 6th EMMC data pin DAT5, the 7th EMMC data pin DAT6, the 8th EMMC data pin DAT7, EMMC reset pin RET, EMMC command set pin CMD, EMMC clock pins CLK, EMMC power protection pin VDDI and EMMC data strobe pin Strobe.
Wherein, one EMMC data pin DAT0, 2nd EMMC data pin DAT1, 3rd EMMC data pin DAT2, 4th EMMC data pin DAT3, 5th EMMC data pin DAT4, 6th EMMC data pin DAT5, 7th EMMC data pin DAT6, 8th EMMC data pin DAT7 is as 8 EMMC data terminals of program storing circuit 130, EMMC reset pin RET is as the reset terminal of program storing circuit 130, EMMC command set pin CMD is as the command set end of program storing circuit 130, EMMC clock pins CLK is as the clock end of program storing circuit 130.
One EMMC data pin DAT0, the 2nd EMMC data pin DAT1, the 3rd EMMC data pin DAT2, the 4th EMMC data pin DAT3, the 5th EMMC data pin DAT4, the 6th EMMC data pin DAT5, the 7th EMMC data pin DAT6, the 8th EMMC data pin DAT7 are connected with EMMC power supply POWER via a pull-up resistor respectively, and connect via a current-limiting resistance is corresponding with 8 flash card data terminals of protocol conversion circuitry 120 respectively.
As in Fig. 2, an EMMC data pin DAT0 is connected with EMMC power supply POWER via pull-up resistor R1, and connects via current-limiting resistance R10 is corresponding with the first flash card data terminal of protocol conversion circuitry 120; 2nd EMMC data pin DAT1 is connected with EMMC power supply POWER via pull-up resistor R2, and connects via current-limiting resistance R11 is corresponding with the second flash card data terminal of protocol conversion circuitry 120; 3rd EMMC data pin DAT2 is connected with EMMC power supply POWER via pull-up resistor R3, and connects via current-limiting resistance R12 is corresponding with the 3rd flash card data terminal of protocol conversion circuitry 120; 4th EMMC data pin DAT3 is connected with EMMC power supply POWER via pull-up resistor R4, and connects via current-limiting resistance R13 is corresponding with the 4th flash card data terminal of protocol conversion circuitry 120; 5th EMMC data pin DAT4 is connected with EMMC power supply POWER via pull-up resistor R5, and connects via current-limiting resistance R14 is corresponding with the 5th flash card data terminal of protocol conversion circuitry 120; 6th EMMC data pin DAT5 is connected with EMMC power supply POWER via pull-up resistor R6, and connects via current-limiting resistance R15 is corresponding with the 6th flash card data terminal of protocol conversion circuitry 120; 7th EMMC data pin DAT6 is connected with EMMC power supply POWER via pull-up resistor R7, and connects via current-limiting resistance R16 is corresponding with the 7th flash card data terminal of protocol conversion circuitry 120; 8th EMMC data pin DAT7 is connected with EMMC power supply POWER via pull-up resistor R8, and connects via current-limiting resistance R17 is corresponding with the 8th flash card data terminal of protocol conversion circuitry 120.
EMMC reset pin RET is connected with the flash card power end of protocol conversion circuitry 120 via a current-limiting resistance, and via a filter capacitor ground connection; As in Fig. 2, EMMC reset pin RET is connected with the flash card power end of protocol conversion circuitry 120 via current-limiting resistance R20, and via filter capacitor ground connection C1 ground connection.
EMMC command set pin CMD is connected with EMMC power supply POWER via a pull-up resistor, and is connected with the flash card order end of protocol conversion circuitry 120 via a current-limiting resistance; As in Fig. 2, EMMC command set pin CMD is connected with EMMC power supply POWER via pull-up resistor R9, and is connected with the flash card order end of protocol conversion circuitry 120 via current-limiting resistance R18.
EMMC clock pins CLK is connected with the flash card clock end of protocol conversion circuitry 120 via a current-limiting resistance, and via a filter capacitor ground connection; As in Fig. 2, EMMC clock pins CLK is connected with the flash card clock end of protocol conversion circuitry 120 via current-limiting resistance R19, and via filter capacitor C2 ground connection.
EMMC power protection pin VDDI is via a filter capacitor ground connection, and EMMC data strobe pin Strobe is via a grounding through resistance; As in Fig. 2, EMMC power protection pin VDDI is via filter capacitor C3 ground connection, and EMMC data strobe pin Strobe is via resistance R21 ground connection.
As shown in Figure 2, protocol conversion circuitry 120 comprises flash card and reads chip 121, flash card reads chip 121 and comprises the first flash card data pin SDDATA0, second flash card data pin SDDATA1, 3rd flash card data pin SDDATA2, 4th flash card data pin SDDATA3, 5th flash card data pin SDDATA4, 6th flash card data pin SDDATA5, 7th flash card data pin SDDATA6, 8th flash card data pin SDDATA7, flash card power pins SD_VCC, flash card command pin SDCMD, flash card clock pins SDCLK, positive differential data pin DP and minus tolerance divided data pin DM.
Wherein, first flash card data pin SDDATA0, second flash card data pin SDDATA1, 3rd flash card data pin SDDATA2, 4th flash card data pin SDDATA3, 5th flash card data pin SDDATA4, 6th flash card data pin SDDATA5, 7th flash card data pin SDDATA6 and the 8th flash card data pin SDDATA7 is as 8 flash card data terminals of protocol conversion circuitry 120, particularly, first flash card data pin SDDATA0 is as the first flash card data terminal of protocol conversion circuitry 120, second flash card data pin SDDATA1 is as the second flash card data terminal of protocol conversion circuitry 120, 3rd flash card data pin SDDATA2 is as the 3rd flash card data terminal of protocol conversion circuitry 120, 4th flash card data pin SDDATA3 is as the 4th flash card data terminal of protocol conversion circuitry 120, 5th flash card data pin SDDATA4 is as the 5th flash card data terminal of protocol conversion circuitry 120, 6th flash card data pin SDDAT5 is as the 6th flash card data terminal of protocol conversion circuitry 120, 7th flash card data pin SDDATA6 is as the 7th flash card data terminal of protocol conversion circuitry 120, 8th flash card data pin SDDATA7 is as the 8th flash card data terminal of protocol conversion circuitry 120, flash card power pins SD_VCC is as the flash card power end of protocol conversion circuitry 120, flash card command pin SDCMD is as the flash card order end of protocol conversion circuitry 120, flash card clock pins SDCLK is as the flash card clock end of protocol conversion circuitry 120, positive differential data pin DP is as the positive differential data transmission terminal of protocol conversion circuitry 120, and minus tolerance divided data pin DM is as the negative positive differential data transmission terminal of protocol conversion circuitry 120.
First flash card data pin SDDATA0, the second flash card data pin SDDATA1, the 3rd flash card data pin SDDATA2, the 4th flash card data pin SDDATA3, the 5th flash card data pin SDDATA4, the 6th flash card data pin SDDATA5, the 7th flash card data pin SDDATA6 and the 8th flash card data pin SDDATA7 are corresponding with 8 EMMC data terminals of program storing circuit 130 to be respectively connected; Flash card power pins SD_VCC is connected with the reset terminal of program storing circuit 130, flash card command pin SDCMD is connected with the command set end of program storing circuit 130, flash card clock pins SDCLK is connected with the clock end of program storing circuit 130, and positive differential data pin DP and minus tolerance divided data pin DM is all connected to data-interface 111.
Particularly, data-interface 111 is USB interface, and USB interface is for connecting the USB port of television set; As shown in Figure 2, USB interface comprises USB power source pin VBUS, data wire positive pole pin D+, data wire negative pole pin D-and grounding pin GND.
The USB power source pin VBUS of USB interface is connected with a USB power supply USB_VCC, the data wire positive pole pin D+ of USB interface is connected with the positive differential data transmission terminal of protocol conversion circuitry 120 via resistance R22, the data wire negative pole pin D-of USB interface is connected with the negative positive differential data transmission terminal of protocol conversion circuitry 120 via resistance R23, resistance R22, resistance R23 can be 0 Ω resistance, the grounding pin GND ground connection of USB interface.
Particularly, interface circuit 110 also comprises the first power filtering capacitor C4 and second source filter capacitor C5; The positive pole of the first power filtering capacitor C4 is connected with USB power supply USB_VCC, and is connected with the USB power source pin VBUS of USB interface, the minus earth of the first power filtering capacitor C4, and second source filter capacitor C5 is in parallel with the first power filtering capacitor C4.
Television set is connected at EMMC tool 100, namely after EMMC tool 100 connects the USB port of television set by USB interface, when main control chip on the mainboard of television set needs the main program to be measured loading outside to start television set, as shown in Figure 2, flash card reads chip 121 by the first flash card data pin SDDATA0, second flash card data pin SDDATA1, 3rd flash card data pin SDDATA2, 4th flash card data pin SDDATA3, 5th flash card data pin SDDATA4, 6th flash card data pin SDDATA5, 7th flash card data pin SDDATA6 and the 8th flash card data pin SDDATA7 reads the data in the main program to be measured stored in EMMC chip 131 to be measured, these data are MMC protocol data, and after data protocol conversion is carried out to read MMC protocol data, MMC protocol data is converted to usb protocol data, and the usb protocol data of acquisition are exported by USB interface, thus the main control chip on the mainboard of television set can read by the USB port of television set the usb protocol data exported from USB interface, thus the communication realized between EMMC chip 131 to be measured and USB interface, and then realize the communication of the main control chip in EMMC chip 131 to be measured and television set, make main control chip in television set can be loaded the main program to be measured in EMMC chip 131 to be measured by the USB port of television set.
The utility model also provides a kind of television system.
In conjunction with referring to figs. 1 through Fig. 3, wherein Fig. 3 is the structural representation of utility model television system one embodiment.
As shown in Figure 3, television system of the present utility model comprises EMMC tool 100 and television set 200, and the structure of this EMMC tool 100 and the beneficial effect that brings, all with reference to above-described embodiment, repeat no more herein.EMMC tool 100 is connected with the FPDP 210 of television set 200 by the data-interface 111 in its interface circuit 110, and particularly, FPDP 210 is USB port, and data-interface 111 is the USB interface with this USB port adaptation.
After EMMC tool 100 is connected with the FPDP 210 of television set 200 by data-interface 111, the main control chip 220 on the mainboard of television set 200 loads from EMMC chip 131 to be measured the main program to be measured that EMMC chip 131 to be measured stores by the FPDP 210 of television set 200.After the FPDP 210 by television set 200 to load the main program to be measured that EMMC chip 131 to be measured stores from EMMC chip 131 to be measured, whether correct main control chip 220 by running the main program to be measured loaded, can detect loaded main program to be measured.When loaded main program to be measured can normally run, when namely television set 200 can normally start, then can detect that this main program to be measured is correct; When loaded main program to be measured can not run, when namely television set 200 starts appearance exception, then can detect that this main program to be measured is incorrect.In actual applications, according to the situation that television set 200 runs, tester judges that in EMMC chip 131 to be measured, whether main program to be measured is correct, such as can not start shooting at television set 200, in the situation such as some function of television set 200 can not start, judge that in EMMC chip 131 to be measured, main program is incorrect, need to revise main program to be measured, again EMMC chip 131 to be measured is burned onto, again to detect the correctness of main program to be measured.
Before being confirmed whether to need to detect the main program to be measured in EMMC chip 131 to be measured, need to carry out opening initialization to television set 200.Thus receiving start-up command, namely when user turns on the mains switch of television set 200, carry out the operation of television set 200 opening initialization, complete the initialization of television set 200 related hardware, such as, initialization is carried out to DDR (Double Data Rate, Double Data Rate synchronous DRAM), system clock, Nandflash (continuous type non-volatile flash memory), serial ports, SD card, USB driving etc.
After carrying out television set 200 opening initialization, if the main control chip 220 on the mainboard of television set 200 does not receive main program and detects instruction within the time interval (as 3s) of presetting, then illustrate not need to perform and the detection of the main program to be measured in EMMC chip 131 to be measured is operated, do not need to utilize the main program to be measured in EMMC chip 131 to be measured to start television set 200, now, the original tv main program prestored in the DDR internal memory of direct loading television set 200, starts television set 200 in order to the original tv main program prestored with television set 200.
Particularly, television set 200 is provided with sense switch button 230, main control chip 220 on the mainboard of television set 200 is when detecting that sense switch button 230 is pressed, explanation receives main program and detects instruction, now main control chip 220 loads the main program to be measured that in EMMC tool 100, EMMC chip 131 to be measured stores, to verify the correctness of data in this main program to be measured by FPDP 210.
The present embodiment arranges sense switch button 230 on television set 200, testing staff selects to carry out correctness detection to the main program to be measured in EMMC chip 131 to be measured by Pen-down detection switch key 230, thus, when sense switch button 230 is pressed, main control chip 220 on the mainboard of television set 200 receives main program and detects instruction, now, main control chip 220 loads the main program to be measured in EMMC chip 131 to be measured by FPDP 210, and whether detect this main program to be measured by the main program to be measured that operation loads correct, thus the correctness of the main program to be measured in EMMC chip 131 to be measured can be detected.
Certainly, in the embodiment of other distortion, above-mentioned sense switch button 230 can be arranged on EMMC tool 100, the modes such as main program detecting instruction can also be sent by remote control and select to carry out correctness detection to the main program to be measured in EMMC chip 131 to be measured.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. an EMMC tool, is characterized in that, described EMMC tool comprises interface circuit, protocol conversion circuitry and program storing circuit; Described interface circuit comprises data-interface, and described program storing circuit comprises the EMMC chip to be measured of the main program to be measured storing television set;
Described protocol conversion circuitry reads the data in the main program to be measured of described EMMC chip-stored to be measured, and the data in described main program to be measured is converted to the data that described data-interface can identify; Described data-interface for connecting the FPDP of television set, to provide described main program to be measured to the main control chip in TV SKD, to verify the correctness of data in described main program to be measured.
2. EMMC tool as claimed in claim 1, it is characterized in that, described EMMC tool is provided with EMMC stand, described EMMC chip to be measured is arranged on described EMMC stand, each pin of described EMMC chip to be measured is corresponding with each stitch of described EMMC stand to be connected, and described EMMC chip to be measured is connected with described protocol conversion circuitry by described EMMC stand.
3. EMMC tool as claimed in claim 1, it is characterized in that, described EMMC chip to be measured comprises an EMMC data pin, the 2nd EMMC data pin, the 3rd EMMC data pin, the 4th EMMC data pin, the 5th EMMC data pin, the 6th EMMC data pin, the 7th EMMC data pin, the 8th EMMC data pin, EMMC reset pin, EMMC command set pin, EMMC clock pins, EMMC power protection pin and EMMC data strobe pin;
A described EMMC data pin, the 2nd EMMC data pin, the 3rd EMMC data pin, the 4th EMMC data pin, the 5th EMMC data pin, the 6th EMMC data pin, the 7th EMMC data pin, the 8th EMMC data pin are connected with an EMMC power supply via a pull-up resistor respectively, and connect via a current-limiting resistance is corresponding with 8 flash card data terminals of described protocol conversion circuitry respectively; Described EMMC reset pin is connected with the flash card power end of described protocol conversion circuitry via a current-limiting resistance, and via a filter capacitor ground connection; Described EMMC command set pin is connected with described EMMC power supply via a pull-up resistor, and is connected with the flash card order end of described protocol conversion circuitry via a current-limiting resistance; Described EMMC clock pins is connected with the flash card clock end of described protocol conversion circuitry via a current-limiting resistance, and via a filter capacitor ground connection; Described EMMC power protection pin is via a filter capacitor ground connection, and described EMMC data strobe pin is via a grounding through resistance.
4. EMMC tool as claimed in claim 1, it is characterized in that, described protocol conversion circuitry comprises flash card and reads chip, and described flash card reads chip and comprises the first flash card data pin, the second flash card data pin, the 3rd flash card data pin, the 4th flash card data pin, the 5th flash card data pin, the 6th flash card data pin, the 7th flash card data pin, the 8th flash card data pin, flash card power pins, flash card command pin, flash card clock pins, positive differential data pin and minus tolerance divided data pin;
Described first flash card data pin, the second flash card data pin, the 3rd flash card data pin, the 4th flash card data pin, the 5th flash card data pin, the 6th flash card data pin, the 7th flash card data pin and the 8th flash card data pin are corresponding with 8 EMMC data terminals of described program storing circuit to be respectively connected; Described flash card power pins is connected with the reset terminal of described program storing circuit, described flash card command pin is connected with the command set end of described program storing circuit, described flash card clock pins is connected with the clock end of described program storing circuit, and described positive differential data pin and minus tolerance divided data pin are all connected to described data-interface.
5. EMMC tool as claimed in claim 1, it is characterized in that, described data-interface is USB interface, and described USB interface is for connecting the USB port of television set; Described USB interface comprises USB power source pin, data wire positive pole pin, data wire negative pole pin and grounding pin;
Described USB power source pin is connected with a USB power supply, described data wire positive pole pin is connected with the positive differential data transmission terminal of described protocol conversion circuitry, described data wire negative pole pin is connected with the negative positive differential data transmission terminal of described protocol conversion circuitry, described grounding pin ground connection.
6. EMMC tool as claimed in claim 5, it is characterized in that, described interface circuit also comprises the first power filtering capacitor and second source filter capacitor; The positive pole of described first power filtering capacitor is connected with described USB power supply, and be connected with the USB power source pin of described USB interface, the minus earth of described first power filtering capacitor, described second source filter capacitor is in parallel with described first power filtering capacitor.
7. a television system, comprises television set, it is characterized in that, described television system also comprises the EMMC tool in claim 1 to 6 described in any one; Described EMMC tool is connected with the FPDP of television set by the data-interface of its interface circuit.
8. television system as claimed in claim 7, it is characterized in that, described television set is provided with sense switch button, main control chip in described TV SKD is when detecting that described sense switch button is pressed, the main program to be measured of EMMC chip-stored to be measured in described EMMC tool is loaded, to verify the correctness of data in described main program to be measured by described FPDP.
9. television system as claimed in claim 7, it is characterized in that, described FPDP is USB port, and described data-interface is the USB interface with described USB port adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801501.5U CN204272318U (en) | 2014-12-16 | 2014-12-16 | EMMC tool and television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801501.5U CN204272318U (en) | 2014-12-16 | 2014-12-16 | EMMC tool and television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204272318U true CN204272318U (en) | 2015-04-15 |
Family
ID=52807163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420801501.5U Expired - Fee Related CN204272318U (en) | 2014-12-16 | 2014-12-16 | EMMC tool and television system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204272318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595991A (en) * | 2018-04-12 | 2018-09-28 | 南宁磁动电子科技有限公司 | A kind of reading equipment of eMMC chip datas |
| CN109490751A (en) * | 2018-10-23 | 2019-03-19 | 锐捷网络股份有限公司 | A kind of EMMC test method and test circuit |
-
2014
- 2014-12-16 CN CN201420801501.5U patent/CN204272318U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108595991A (en) * | 2018-04-12 | 2018-09-28 | 南宁磁动电子科技有限公司 | A kind of reading equipment of eMMC chip datas |
| CN109490751A (en) * | 2018-10-23 | 2019-03-19 | 锐捷网络股份有限公司 | A kind of EMMC test method and test circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102708077B (en) | State recognition method and state recognition apparatus | |
| EP2584471A1 (en) | Method and terminal for selecting internal circuit according to USB interface status | |
| BR102015014593B1 (en) | CHIP SYSTEM | |
| CN104217768B (en) | A kind of detection method and device of eMMC embedded memories | |
| CN105006961B (en) | A kind of multiple power supplies electric sequence control circuit and method | |
| CN208384003U (en) | A kind of test device and system | |
| CN105071484B (en) | A kind of charging method and device of the terminal with data exchanging function | |
| CN104731746A (en) | Equipment controller device | |
| CN209514613U (en) | On-site programmable gate array FPGA development board | |
| CN102915209B (en) | Storage control chip, storage equipment and system data writing method | |
| CN204272318U (en) | EMMC tool and television system | |
| CN206401032U (en) | A kind of protection circuit of FLASH abnormity of power supply down Monitor Unit | |
| CN207164210U (en) | A kind of test device of smart card | |
| CN203250312U (en) | Extensible common core processing daughter board with interferences | |
| CN202150274U (en) | Anti-lost circuit structure for EEPROM (Electrically Erasable Programmable Read Only Memory) data | |
| CN103345610B (en) | The Apparatus and method for of fast verification intelligent card data integrality | |
| CN101131666B (en) | Contact smart card simulation card | |
| CN212012206U (en) | Circuit structure based on TYPE-C interface automatic identification multiple cell-phone protocol of filling soon | |
| CN105630120B (en) | A kind of method and device of loading processing device hardware configuration word | |
| CN106095627B (en) | A kind of detection method and mobile terminal of functional module group | |
| CN104598415A (en) | Universal serial bus (USB) test fixture | |
| CN208819045U (en) | A kind of FPGA development board | |
| CN211506478U (en) | BMC daughter card module based on domestic MCU | |
| CN202916420U (en) | Electric quantity detecting circuit of mobile power supply | |
| CN106584862A (en) | 3D printing WIFI control system with built-in Web service and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 |