CN206532282U - A kind of debug circuit, debugging apparatus, debugging system and a kind of electronic equipment - Google Patents
A kind of debug circuit, debugging apparatus, debugging system and a kind of electronic equipment Download PDFInfo
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- CN206532282U CN206532282U CN201621418745.0U CN201621418745U CN206532282U CN 206532282 U CN206532282 U CN 206532282U CN 201621418745 U CN201621418745 U CN 201621418745U CN 206532282 U CN206532282 U CN 206532282U
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- 230000005611 electricity Effects 0.000 claims description 2
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Abstract
The utility model discloses a kind of debug circuit, debugging apparatus, debugging system and a kind of electronic equipment, debug circuit includes control chip, link switching unit and SD card seat；When control chip, which is detected, inserts SD card in SD card seat, the pin for being used to enter row data communication with SD card on control chip is communicated to SD card seat by link switching unit, and now control chip can carry out normal read-write operation to SD card；When control chip, which is detected, is not inserted into SD card in SD card seat, the pin for being used to debug on control chip is communicated to SD card seat by link switching unit, product complete machine can now be debugged by SD card seat, when the test point reserved on the only reserved SD card groove of electronics external, circuit board is wrapped in complete machine, the work such as research and development debugging, the production line test of product complete machine are convenient for.
Description
Technical field
The utility model is related to technical field of circuit design, and in particular to a kind of debug circuit, debugging apparatus, debugging system
And a kind of electronic equipment.
Background technology
At present, many electronic products are all intended to the directions such as miniaturization, waterproof and developed, and can cancel exposed USB interface, only
Retain SD card groove, although test point can be reserved on the circuit board of product, but after product form complete machine, these test points are usual
It can be wrapped in complete machine, be not easy to carry out the work such as research and development debugging, the production line test of product complete machine.
Utility model content
The utility model provides a kind of debug circuit, debugging apparatus, debugging system and a kind of electronic equipment, to solve
In the case that electronics external only reserves SD card groove, because the test point reserved on circuit board is wrapped in complete machine, inconvenience
The problem of the work such as research and development debugging, the production line test for carrying out product complete machine.
According to one side of the present utility model, the utility model provides a kind of debug circuit, including control chip, chain
Road switch unit and SD card seat；
The control chip, for monitoring in the SD card seat whether insert SD card；
The link switching unit, for when the control chip monitors to be not inserted into SD card in the SD card seat, inciting somebody to action
It is used for the respective pins connection for the pin and SD card seat debugged on the control chip, and will be used on the control chip
Disconnected with the respective pins of the pin and SD card seat of SD card data communication；When the control chip monitors the SD card seat
In when inserting SD card, the respective pins of pin and SD card seat for being used to debug on the control chip are disconnected, and will
It is used to connect with the respective pins of the pin and SD card seat of SD card data communication on the control chip.
According to other side of the present utility model, the utility model provides a kind of debugging apparatus, including for inserting
The pinboard of SD card seat, and the USB connector being connected with the pinboard；
DATA0_1 pins, DATA1_1 pins and DATA2_1 pins are provided with the pinboard, when the pinboard is inserted
When entering SD card seat, the DATA0_1 pins, DATA1_1 pins and DATA2_1 pins connect the DATA0 of the SD card seat respectively
Pin, DATA1 pins and DATA2 pins；
One end that the pinboard is touched with SD card seated connection is handled by corner cut, is made after the pinboard insertion SD card seat, SD
The signal of the CD pins of deck is high level；
The VUBS pins of the USB connector connect the DATA2_1 pins of the pinboard, and the D+ of the USB connector draws
Pin connects the DATA0_1 pins of the pinboard, and the D- pins of the USB connector connect the DATA1_1 pins of the pinboard.
According to another aspect of the present utility model, the utility model provides a kind of electronic equipment, including above-mentioned tune
Try circuit.
According to another aspect of the present utility model, the utility model provides a kind of debugging system, including above-mentioned debugging
Circuit, and above-mentioned debugging apparatus；
When the movable end of the single-pole double-throw switch (SPDT) connects the first not moved end, the debugging system entered function debugs mould
Formula/firmware upgrade pattern；
When the movable end of the single-pole double-throw switch (SPDT) connects the second not moved end, the debugging system enters firmware upgrade mould
Formula/function debugging pattern.
The beneficial effects of the utility model are：The utility model embodiment is by the SD card signal and usb signal of control chip
It is multiplexed, when control chip, which is detected, inserts SD card in SD card seat, link switching unit will be used for and SD on control chip
The pin for sticking into row data communication is connected to SD card seat, and now control chip can carry out normal read-write operation to SD card；When
Control chip is detected in SD card seat when being not inserted into SD card, and link switching unit connects the pin for being used to debug on control chip
To SD card seat, product complete machine can now be debugged by SD card seat, solve and only reserve SD card in electronics external
In the case of groove, because the test point reserved on circuit board is wrapped in complete machine, thus it is not easy to carry out grinding for product complete machine
The problem of sending out the work such as debugging, production line test.
Brief description of the drawings
Fig. 1 is a kind of circuit theory diagrams for debug circuit that the utility model one embodiment is provided；
Fig. 2 is a kind of circuit theory diagrams for debugging apparatus that the utility model one embodiment is provided；
Fig. 3 is the functional block diagram for a kind of electronic equipment that the utility model one embodiment is provided；
Fig. 4 is a kind of functional block diagram for debugging system that the utility model one embodiment is provided.
Embodiment
Design concept of the present utility model is：Many electronic products develop in directions such as miniaturization, waterproofs, outside only pre-
Stay the test point reserved on SD card groove, circuit board to be all wrapped in complete machine, be not easy to carry out research and development debugging, the production of product complete machine
The work such as line test.For such case, the SD card signal of control chip is multiplexed by the utility model with usb signal, when
During SD card seat insertion SD card, the pin for being used to enter row data communication with SD card on control chip is connected to SD card seat, core is controlled
Piece can carry out normal read-write operation to SD card；When SD card seat is not inserted into SD card, drawing for debugging will be used on control chip
Pin is connected to SD card seat, and debugging apparatus now is inserted into SD card seat can just debug to product complete machine, and can also lead to
The switch crossed on debugging apparatus selects different patterns.
Embodiment one
Fig. 1 is a kind of circuit theory diagrams for debug circuit that the utility model one embodiment is provided, as shown in figure 1, this
The debug circuit that embodiment is provided includes control chip U1, link switching unit and SD card seat J2.
Whether SD card is inserted in control chip U1 monitoring SD card seats J2.When control chip U1 monitors not insert in SD card seat J2
When entering SD card, link switching unit will be used for the pin and SD card J2 debugged respective pins connection on control chip U1, and
It will be used to disconnect with the respective pins of the pin and SD card seat J2 of SD card data communication on control chip U1, now control chip U1
The upper pin for debugging is guided to outside product by SD card seat J2, and host computer can be built by SD card seat J2 and control chip U1
Vertical connection, carries out the related commissioning work of product complete machine.
When control chip U1 monitors that link switching unit will be used on control chip U1 when inserting SD card in SD card seat J2
Disconnected in the respective pins of the pin and SD card seat J2 of debugging, and the pin with SD card data communication will be used on control chip U1
Connected with SD card seat J2 respective pins, now control chip U1 can normally read and write SD card.
When in SD card insertion SD card seat, an angle of SD card withstands on the position of CD pins, draws the CD pins of SD decks
Low is low level, therefore in a preferred embodiment, control chip U1 is by detecting that the signal of SD card seat J2 CD pins judges SD
Whether SD card is inserted in deck J2：When it is high level to detect the SD card seat J2 signal of CD pins, control chip U1 judges
SD card is not inserted into SD card seat J2, and sends to link switching unit the control signal of high level；When detecting SD card seat J2
When the signal of CD pins is low level, control chip U1 judges to insert SD card in SD card J2, and by SEL0 pin to link
Switch unit sends low level control signal.
Preferably, link switching unit includes two binary channels single-pole double-throw switch (SPDT)s：First switch U2 and second switch U3.
First switch U2 the first input channel CH1, which connects, is used for the D0 pins and D1 pins with SD card data communication on control chip U1,
First switch U2 the second input channel CH2 connects the USB_DP pins and USB_DM pins for being used to debug on control chip U1, the
One switch U2 output channel OUTPUT connects SD card seat J2 DATA0 pins and DATA1 pins.Second switch U3 the first input
Channel C H1, which connects, is used for the D3 pins and D4 pins with SD card data communication on control chip U1, second switch U3 the second input
Channel C H2 connects the DETECT_VBUS pins and Update pins for being used to debug on control chip U1, and second switch U3 output is led to
Road OUTPUT connects SD card seat J2 DATA2 pins and DATA3 pins.
When SD card seat J2 is not inserted into SD card, first switch U2 and second switch U3 SEL1 pin ground connection, control end SEL0
VCC is connect by resistance R3, is driven high, first switch U2 and second switch U3 the first input channel CH1 are closed, the second input is logical
Road CH2 is opened, and Update, USB_DP, USB_DM, the DETECT_VBUS tetra- for carrying out debugging efforts is used on control chip U1
Pin is pulled on SD card seat J2.When SD card seat J2 insertion SD cards, control chip U1 detects the CD pins of SD card seat
After level is pulled low, first switch U2 and second switch U3 control end SEL0 are dragged down, are used on control chip U1 and SD card
Tetra- pins of D0, D1, D2, D3 for entering row data communication are pulled on SD card seat J2.
Preferably, the debug circuit that the present embodiment is provided also includes a reserved USB connector J1, USB connector J1's
VBUS pins connect control chip U1 DETECT_VBUS pins, and the D+ pins and D- pins of USB connector connect control chip respectively
U1 USB_DP pins and USB_DM pins, USB connector J1 GND pin ground connection.Broken down in link switching unit etc.
In the case of, product complete machine can be taken apart, the debugging of product is carried out by USB connector J1.
In the present embodiment, control chip U1 is Ambarella (peace despot) dsp chip, and peace despot is current high-end video scheme
Supplier is solved, many high-end video equipment are all using peace despot's solution, the relatively good fortune of particularly present market prospects
The products such as dynamic camera, unmanned plane.Most of these products only retain unique input/output interface, i.e. SD card in device external
Seat, the debug circuit that the present embodiment is provided is applied in this kind of product, you can product complete machine is entered conveniently by SD card seat
Row debugging efforts.
Embodiment two
Fig. 2 is a kind of circuit theory diagrams for debugging apparatus that the utility model one embodiment is provided, as shown in Fig. 2 this
The debugging apparatus that embodiment is provided includes the pinboard for being used to insert SD card seat, and the USB connector J3 being connected with pinboard.
DATA0_1 pins, DATA1_1 pins and DATA2_1 pins are provided with pinboard, when pinboard insertion SD card seat
When, DATA0_1 pins, DATA1_1 pins and the DATA2_1 pins of pinboard connect respectively SD card seat J2 DATA0 pins,
DATA1 pins and DATA2 pins.In the present embodiment, pinboard is identical with common SD card profile, but is connect with SD card seat J2
Tactile one end (lower left corner) is handled by corner cut.When in common SD card insertion SD card seat, the lower left corner of SD card withstands on SD card
The position of seat CD pins, makes the CD pins of SD card seat down for low level.Corner cut processing has been done in the pinboard lower left corner of this implementation,
So that after pinboard insertion SD card seat, the signal of the CD pins of SD card seat is high level, and system can judge to be not inserted into SD card seat
SD card.
USB connector J3 VUBS pins switch through the DATA2_1 pins of fishplate bar, and USB connector J3 D+ pins switch through
The DATA0_1 pins of plate, the D- pins of USB connector switch through the DATA1_1 pins of fishplate bar.Can be right by USB connector J3
Product complete machine carries out debugging efforts.
Preferably, it is additionally provided with the debugging apparatus that the present embodiment is provided on a single-pole double-throw switch (SPDT) SW1, pinboard also
DATA3_1 pins and VDD_1 pins are provided with, when pinboard insertion SD card seat, DATA3_1 pins and VDD_1 pins difference
Connect the DATA3 pins and VDD pins of SD card seat.Single-pole double-throw switch (SPDT) SW1 movable end switches through the DATA3_1 pins of fishplate bar,
The VDD_1 pins of first motionless termination pinboard, the second motionless termination USB connector J3 GND pin.It is double by stirring hilted broadsword
Throw switch SW1 can select that control chip U1 Update pins are drawn high or dragged down, to be after controlling the upper electricity of product start
System enters different patterns, and such as selection enters firmware upgrade pattern or selection entered function debugging mode.
Embodiment three
Fig. 3 is the functional block diagram for a kind of electronic equipment that the utility model one embodiment is provided, what the present embodiment was provided
Electronic equipment 300 includes the debug circuit 310 in above-described embodiment one.
Example IV
Fig. 4 is a kind of functional block diagram for debugging system that the utility model one embodiment is provided, as shown in figure 4, this reality
Applying the debugging system 400 of example offer includes the debug circuit 410 in above-described embodiment 1 and the debugging dress in above-described embodiment 2
Put 420.Single-pole double-throw switch (SPDT) SW1 movable end connection first not moved end or connection second not moved end when, can be by control chip U1
Update pins draw high or drag down, make debugging system 400 enter different mode of operations, such as enter firmware upgrade pattern or
Function debugging pattern.But for the chip of different model, system enters needed for firmware upgrade pattern or function debugging pattern
Level is different.
For example, for peace despot's S2L33m-A1-RH chips, when the single-pole double-throw switch (SPDT) SW1 not moved end of movable termination first
When, the DATA3_1 pins of pinboard are directly connected to VDD_1 pins, due to when pinboard insertion SD card seat J2 when, pinboard
DATA3_1 pins are ultimately connected to control chip U1 Update pins by SD card seat J2 and second switch U3, therefore
The level of Update pins is drawn high by VDD.Control chip U1 Update pins are detected after high level, control debugging system
400 enter firmware upgrade pattern, and now electronic product complete machine software can be upgraded.
When single-pole double-throw switch (SPDT) SW1 movable the second not moved end of termination, the DATA3_1 pins of pinboard are directly connected to
Ground, is pulled low the level of control chip U1 Update pins.Control chip U1 Update pins are detected after low level,
The entered function debugging mode of debugging system 400 is controlled, the host computer such as PC can be by USB connector into electronic product complete machine
The control chip U1 in portion sends instruction, carries out Commissioning Analysis and test.
But for peace despot's A9SE75 chips, when the single-pole double-throw switch (SPDT) SW1 not moved end of movable termination first, make control core
When piece U1 Update pins are drawn high by VDD, the entered function debugging mode of debugging system 400；As single-pole double-throw switch (SPDT) SW1 can
Moved end connects the second not moved end, and when the control chip U1 Update pins is dragged down by GND, debugging system 400 enters firmware upgrade
Pattern.Therefore in actual use, it is necessary to select the closure of single-pole double-throw switch (SPDT) according to system requirements.
The SD card signal of control chip is multiplexed by the utility model with usb signal, can when SD card seat insertion SD card
To carry out normal read-write operation to SD card；When SD card seat insertion modulating device, product complete machine can be debugged, and
The feelings that SD card groove is only reserved in electronics external can also be solved by the different pattern of the switch selection on debugging apparatus
Under condition, because the test point reserved on circuit board is wrapped in complete machine, thus it is not easy to carry out the research and development tune of product complete machine
The problem of work such as examination, production line test.
It is described above, embodiment only of the present utility model, under above-mentioned teaching of the present utility model, this area
Technical staff can carry out other improvement or deformation on the basis of above-described embodiment.It will be understood by those skilled in the art that
Above-mentioned specific descriptions are more preferable explanation the purpose of this utility model, and protection domain of the present utility model should be with claim
Protection domain be defined.
Claims (9)
1. a kind of debug circuit, it is characterised in that the debug circuit includes control chip, link switching unit and SD card seat；
The control chip, for monitoring in the SD card seat whether insert SD card；
The link switching unit, for when the control chip monitors to be not inserted into SD card in the SD card seat, by described in
It is used for the respective pins connection for the pin and SD card seat debugged on control chip, and will be used for and SD on the control chip
The respective pins of the pin of card data communication and SD card seat disconnect；When the control chip monitors to insert in the SD card seat
When having entered SD card, the respective pins disconnection for the pin and SD card seat debugged will be used on the control chip, and will be described
It is used to connect with the respective pins of the pin and SD card seat of SD card data communication on control chip.
2. debug circuit as claimed in claim 1, it is characterised in that the control chip is specifically for described by detection
The signal of the CD pins of SD card seat judges whether insert SD card in the SD card seat；
When it is high level to detect the signal of CD pins of the SD card seat, judge to be not inserted into SD card in the SD card seat, and
The control signal of high level is sent to the link switching unit；
When it is low level to detect the signal of CD pins of the SD card seat, judge to insert SD card in the SD card seat, and
Low level control signal is sent to the link switching unit.
3. debug circuit as claimed in claim 2, it is characterised in that the link switching unit includes first switch and second
Switch；The first switch and the second switch are binary channels single-pole double-throw switch (SPDT)；
First input channel of the first switch, which connects, is used for the D0 pins and D1 with SD card data communication on the control chip
Pin, the second input channel of the first switch connects the USB_DP pins and USB_DM for being used to debug on the control chip and drawn
Pin, the output channel of the first switch connects the DATA0 pins and DATA1 pins of the SD card seat；
First input channel of the second switch, which connects, is used for the D3 pins and D4 with SD card data communication on the control chip
Pin, the second input channel of the second switch connect the DETECT_VBUS pins that are used for debugging on the control chip and
Update pins, the output channel of the second switch connects the DATA2 pins and DATA3 pins of the SD card seat；
The control signal that the control termination control chip of the control end of the first switch and the second switch is sent.
4. debug circuit as claimed in claim 3, it is characterised in that the debug circuit also includes a reserved USB connection
Device；
The VBUS pins of the reserved USB connector connect the DETECT_VBUS pins of the control chip；
The USB_DP pins and USB_DM that the D+ pins and D- pins of the reserved USB connector connect the control chip respectively draw
Pin；
The GND pin ground connection of the reserved USB connector.
5. debug circuit as claimed in claim 4, it is characterised in that the control chip is Ambarella dsp chips.
6. a kind of debugging apparatus, it is characterised in that the debugging apparatus includes the pinboard for being used to insert SD card seat, and with institute
State the connected USB connector of pinboard；
DATA0_1 pins, DATA1_1 pins and DATA2_1 pins are provided with the pinboard, when the pinboard inserts SD
During deck, the DATA0_1 pins, DATA1_1 pins and DATA2_1 pins connect respectively SD card seat DATA0 pins,
DATA1 pins and DATA2 pins；
One end that the pinboard is touched with SD card seated connection is handled by corner cut, is made after the pinboard insertion SD card seat, SD card seat
CD pins signal be high level；
The VUBS pins of the USB connector connect the DATA2_1 pins of the pinboard, and the D+ pins of the USB connector connect
The DATA0_1 pins of the pinboard, the D- pins of the USB connector connect the DATA1_1 pins of the pinboard.
7. debugging apparatus as claimed in claim 6 a, it is characterised in that single-pole double throw is additionally provided with the debugging apparatus
Switch；
DATA3_1 pins and VDD_1 pins are additionally provided with the pinboard, it is described when pinboard insertion SD card seat
DATA3_1 pins and VDD_1 pins connect the DATA3 pins and VDD pins of the SD card seat respectively；
The DATA3_1 pins for movably terminating the pinboard of the single-pole double-throw switch (SPDT), the first motionless termination pinboard
VDD_1 pins, the GND pin of the second motionless termination USB connector.
8. a kind of electronic equipment, it is characterised in that the electronic equipment includes the debugging electricity as described in claim any one of 1-5
Road.
9. a kind of debugging system, it is characterised in that the debugging system includes the debug circuit as described in claim 4 or 5, with
And debugging apparatus as claimed in claim 7；
When the movable end of the single-pole double-throw switch (SPDT) connects the first not moved end, the debugging system entered function debugging mode/
Firmware upgrade pattern；
When the single-pole double-throw switch (SPDT) movable end connect the second not moved end when, the debugging system enter firmware upgrade pattern/
Function debugging pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418745.0U CN206532282U (en) | 2016-12-22 | 2016-12-22 | A kind of debug circuit, debugging apparatus, debugging system and a kind of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621418745.0U CN206532282U (en) | 2016-12-22 | 2016-12-22 | A kind of debug circuit, debugging apparatus, debugging system and a kind of electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206532282U true CN206532282U (en) | 2017-09-29 |
Family
ID=59921767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621418745.0U Withdrawn - After Issue CN206532282U (en) | 2016-12-22 | 2016-12-22 | A kind of debug circuit, debugging apparatus, debugging system and a kind of electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206532282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904647A (en) * | 2017-12-08 | 2019-06-18 | 西部数据技术公司 | Memory card pin layout for avoiding conflicting in combination card connector slot |
| WO2021253805A1 (en) * | 2020-06-17 | 2021-12-23 | 上海创功通讯技术有限公司 | Detection assistance circuit, apparatus, motherboard, and terminal device |
-
2016
- 2016-12-22 CN CN201621418745.0U patent/CN206532282U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904647A (en) * | 2017-12-08 | 2019-06-18 | 西部数据技术公司 | Memory card pin layout for avoiding conflicting in combination card connector slot |
| CN109904647B (en) * | 2017-12-08 | 2020-08-11 | 西部数据技术公司 | Memory card pin layout for avoiding collisions in combo card connector slot |
| WO2021253805A1 (en) * | 2020-06-17 | 2021-12-23 | 上海创功通讯技术有限公司 | Detection assistance circuit, apparatus, motherboard, and terminal device |
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