CN207731262U - A kind of SCM Based universal high speed data transfer test system - Google Patents
A kind of SCM Based universal high speed data transfer test system Download PDFInfo
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- CN207731262U CN207731262U CN201820077774.8U CN201820077774U CN207731262U CN 207731262 U CN207731262 U CN 207731262U CN 201820077774 U CN201820077774 U CN 201820077774U CN 207731262 U CN207731262 U CN 207731262U
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Abstract
The utility model discloses a kind of SCM Based universal high speed data transfers to test system, including STM32F407VGT6 chips, power circuit, USB3300 circuits and drive circuit for analog switch, power circuit is connect with STM32F407VGT6 chips is used for system power supply, USB3300 circuits are connect by USB interface with host computer, USB3300 circuits also connect the data transmission for STM32F407VGT6 chips and host computer with STM32F407VGT6 chips, drive circuit for analog switch is connect by I/O interfaces with test point, drive circuit for analog switch is also connected from STM32F407VGT6 chips for testing different test points.The utility model reduces design cost, improves transmission rate.
Description
Technical field
The utility model is related to a kind of test system, especially a kind of SCM Based universal high speed data transfer is surveyed
Test system.
Background technology
With the development of science and technology, demand of the people to the rate of data transmission greatly improves, traditional transmission mode is
Cannot gradually meet the needs of production and living.In the industrial production, with the arriving in big data epoch, the transmission speed of data is improved
The demand of rate is particularly urgent.
Such system can apply to handle the collection of test result, transmission control of the user instruction from host computer to slave computer
System, slave computer read the data of host computer.It needs to transmit the speed transmitted when big data and key instruction in a communications system
And the safety of data transmission, accuracy just become particularly important.
Currently, the transmission mode used in industry mainly uses 485,232, network interface, CAN bus, the communication modes such as USB.
485,232 transmission rate is only 1Mbps, although the transmission rate of network can accomplish gigabit, this needs corresponding pass
Defeated cable（Such as optical fiber）And transfer or routing device meet such transmission rate, and the cost of these equipment is a bit high.
This transmission modes of USB are not only cheap but also high-speed transfer may be implemented, and the transmission rate of usb2.0 ranges up to 40M/s, and current
The usb3.0 of gradual occuping market is up to 500M/s, as long as and cost also only dozens of yuan or so.USB is by the way of difference
So that communication is safer reliable.The plug and play and warm connection function of USB interface also holding equipment, USB interface also has can
Autgmentability can expand several ports more using hub, and it is especially prominent that this allows for usb communication.USB is in various needs
Using in the occasion of communication makes using for USB particularly extensive big data transmission, safety and convenience.Therefore it needs
Design a kind of data transmission test system using USB interface.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of SCM Based universal high speed data transfers
Test system improves test transmission rate.
In order to solve the above technical problems, technical solution used by the utility model is：
A kind of SCM Based universal high speed data transfer test system, it is characterised in that：Including
STM32F407VGT6 chips, power circuit, USB3300 circuits and drive circuit for analog switch, power circuit with
The connection of STM32F407VGT6 chips is used for system power supply, and USB3300 circuits are connect by USB interface with host computer, USB3300
Circuit also connect the data transmission for STM32F407VGT6 chips and host computer, analog switch with STM32F407VGT6 chips
Driving circuit is connect by I/O interfaces with test point, and drive circuit for analog switch also connect with STM32F407VGT6 chips and is used for
Different test points is tested.
Further, 6 feet of the STM32F407VGT6 chips U1 connect 3.3V power supplys, STM32F407VGT6 chips U1
10,11,19,20,21,22 feet ground connection, 12 one end foot crystal oscillator pipe Y1, the one end capacitance C4 of STM32F407VGT6 chips U1,
The 13 foot crystal oscillator pipe Y1 other ends, the one end capacitance C7, the capacitance C4 other ends and the capacitance C7 other ends of STM32F407VGT6 chips U1
Ground connection, the one end 14 feet connection resistance R4, the one end capacitance C8 of STM32F407VGT6 chips U1, capacitance C8 other ends ground connection, resistance
The R4 other ends connect 3.3V power supplys, and 27 feet of STM32F407VGT6 chips U1 are grounded, and 28, the 50 of STM32F407VGT6 chips U1
Foot connects 3.3V power supplys, one end 49 feet connection capacitance C13 of STM32F407VGT6 chips U1, and the capacitance C13 other ends are grounded,
One end 70 feet connection resistance R3 of STM32F407VGT6 chips U1, the 71 feet connection resistance R2 mono- of STM32F407VGT6 chips U1
End, the resistance R3 other ends connect USB interface, the 73 feet connection capacitance C3 of STM32F407VGT6 chips U1 with the resistance R2 other ends
One end, capacitance C3 other ends ground connection, the 74 feet ground connection of STM32F407VGT6 chips U1,75 feet of STM32F407VGT6 chips U1
3.3V power supplys, one end 94 feet connection resistance R1 of STM32F407VGT6 chips U1 are connected, the resistance R1 other ends are grounded,
99 feet of STM32F407VGT6 chips U1 are grounded, and 100 feet of STM32F407VGT6 chips U1 connect 3.3V power supplys.
Further, the USB3300 circuits include that 0,1,2 feet of USB3300 chips U2, USB3300 chip U2 are grounded,
4 feet of USB3300 chips U2 connect the one end protective tube F1 and connect 5V power supplys, protective tube F1 other ends connection capacitance C14,
7,8 feet of 1 foot of the one end C15 and USB interface J2, capacitance C14, C15 other end ground connection, USB3300 chips U2 connect USB interface
3,2 feet of J2,4, the 0 foot ground connection of USB interface J2, the one end 9 feet connection capacitance C30, the one end resistance R10 of USB3300 chips U2,
The capacitance C30 other ends connect 3.3V power supplys, resistance R10 other ends ground connection, the 10 feet connection resistance R12 mono- of USB3300 chips U2
End, resistance R12 other ends ground connection, one end 15 feet connection capacitance C31 of USB3300 chips U2, capacitance C31 other ends ground connection,
16,25,30,31 feet of USB3300 chips U2 connect 3.3V power supplys, and 26 feet of USB3300 chips U2 connect the one end capacitance C12,
The capacitance C12 other ends are grounded, the one end 27 feet connection resistance R5, the one end crystal oscillator pipe Y2, the one end capacitance C10 of USB3300 chips U2,
The 28 feet connection resistance R5 other ends of USB3300 chips U2, the crystal oscillator pipe Y2 other ends, the one end capacitance C9, capacitance C9, C10 are another
End ground connection, one end 29 feet connection capacitance C11 of USB3300 chips U2, capacitance C11 other ends ground connection, the 32 of USB3300 chips U2
Foot connects the one end resistance R9, resistance R9 other ends ground connection.
Further, the power circuit includes that 1 foot of linear voltage regulator AMS1117-3.3 chip U3, chip U3 are grounded,
2 feet of chip U3 connect the one end capacitance C34, the one end capacitance C32 and connect 3.3V power supplys, the 3 feet connection capacitance C33 mono- of chip U3
End, the one end capacitance C35 simultaneously connect 5V power supplys, the capacitance C34 other ends, the capacitance C32 other ends, the capacitance C33 other ends and capacitance C35
The other end is grounded.
Further, the drive circuit for analog switch includes analog switch AD75019 chip U4, U5, U6, U7, interface
The 1-64 feet of P21 are separately connected the 31-38 feet and 13-7 feet, analog switch AD75019 cores of analog switch AD75019 chips U4
The 31-38 feet and 13-7 feet of piece U5, the 31-38 feet and 13-7 feet, analog switch of analog switch AD75019 chips U6
The 31-38 feet and 13-7 feet of AD75019 chips U7, the 15-30 feet connection of analog switch AD75019 chips U4, U5, U6, U7
The 3-18 feet of interface P22 and P23, one end 1 foot connection protective tube F21 of interface P22, the 2 feet connection protective tube F22 of interface P22
One end, protective tube F21 other end connection+12V power supplys, protective tube F22 other end connection+5V power supplys, interface P23 1 foot connection+
12V power supplys, the 2 foot connection+5V power supplys of interface P23, one end 23 feet connection protective tube F23 of interface P22, protective tube F23 are another
Hold connection -12V power supplys, the 23 foot connection -12V power supplys of interface P23,19,20 feet of interface P22 and P23 be separately connected RP1 5,
3 feet, 2,4,6, the 8 foot connection+5V power supplys of RP1,1 foot of the 22 feet connection RP1 of interface P22,24 feet of interface P22 and P23 connect
Ground, resistance R21 one end connection+12V power supplys, the resistance R21 other ends connect light emitting diode D1 anodes, light emitting diode D1 cathodes
Ground connection, resistance R22 one end connection+5V power supplys, the resistance R22 other ends connect light emitting diode D2 anodes, and light emitting diode D2 is cloudy
Pole is grounded, and the one end resistance R23 ground connection, the resistance R23 other ends connect light emitting diode D3 anodes, and light emitting diode D3 cathodes connect
Connect -12V power supplys, the 4 foot connection -12V power supplys of analog switch AD75019 chips U4, U5, U6, U7, analog switch AD75019 cores
1,2 feet of piece U4, U5, U6, U7 are separately connected the 5 of RP1,3 feet, and 43 feet of analog switch AD75019 chips U4, U5, U6, U7 connect
Ground, the 42 foot connection+5V power supplys of analog switch AD75019 chips U4, U5, U6, U7, analog switch AD75019 chips U4, U5,
The 41 foot connection+12V power supplys of U6, U7, the 44 feet connection analog switch AD75019 chips U5 of analog switch AD75019 chips U4
3 feet, connect 3 feet of the 44 feet connection analog switch AD75019 chips U6 of analog switch AD75019 chips U5, connect analog switch
3 feet of the 44 feet connection analog switch AD75019 chips U7 of AD75019 chips U6,44 feet of analog switch AD75019 chips U7
22 feet of connecting interface P23.
Further, 34 feet of the 1 foot connection STM32F407VGT6 chips U1 of SN74LV16TDGGR chips U8,
2,3 feet of SN74LV16TDGGR chips U8 are separately connected 61,62 feet of STM32F407VGT6 chips U1, SN74LV16TDGGR
4,10,15,21 feet of chip U8 are grounded, and 7,18 feet that the one end capacitance C1 connects power supply 3.3V, SN74LV16TDGGR chip U8 connect
Power supply 3.3V and the one end capacitance C5, capacitance C5 other ends ground connection are met, 5,6 feet of SN74LV16TDGGR chips U8 are separately connected
8,9 feet of 81,82 feet of STM32F407VGT6 chips U1, SN74LV16TDGGR chips U8 are separately connected STM32F407VGT6
11,12,13,14 feet of 38,39 feet of chip U1, SN74LV16TDGGR chips U8 are separately connected STM32F407VGT6 chips U1
40,41,42,43 feet, 16,17 feet of SN74LV16TDGGR chips U8 be separately connected STM32F407VGT6 chips U1 44,
19,20 feet of 45 feet, SN74LV16TDGGR chips U8 are separately connected 46,55 feet of STM32F407VGT6 chips U1,
22,23,24 feet of SN74LV16TDGGR chips U8 are separately connected 56,57,34 feet of STM32F407VGT6 chips U1,
88 feet of 48, the 25 feet connection STM32F407VGT6 chips U1 of SN74LV16TDGGR chips U8, SN74LV16TDGGR chips U8
47,46,44,43,41,40,38,37,36,35,33,32,30,29,27,26 feet be separately connected interface J1 2,4,6,8,
10,12,14,16,18,20,22,24,26,28,30,32 foot, 42,31 feet and capacitance C2, C6 of SN74LV16TDGGR chips U8
One end connects 5V power supplys, 45,39,34, the 28 feet ground connection of capacitance C2, C6 other end and SN74LV16TDGGR chips U8, interface J1
34,36,38,40 feet ground connection, 33,35 feet of interface J1 connect power supply 3.3V, 37, the 39 feet connection power supply 5V of interface J1.
The utility model compared with prior art, has the following advantages and effect：
1, design cost is reduced；
2, the transmission rate improved, after tested, the design survey transmission rate up to 40M/s
3, test point can infinite expanding, universal strong；
4, resource is simplified, efficiency is improved, avoids the waste of resource to a certain extent.
Description of the drawings
Fig. 1 is a kind of module map of SCM Based universal high speed data transfer test system of the utility model.
Fig. 2 is the STM32F407VGT6 chip circuit figures of the utility model.
Fig. 3 is the circuit diagram of the USB3300 circuits of the utility model.
Fig. 4 is the circuit diagram of the power circuit of the utility model.
Fig. 5 is the circuit diagram a of the drive circuit for analog switch of the utility model.
Fig. 6 is the circuit diagram b of the drive circuit for analog switch of the utility model.
Fig. 7 is the video interface circuit figure of the utility model.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
As shown, the SCM Based universal high speed data transfer of one kind of the utility model tests system, including
STM32F407VGT6 chips, power circuit, USB3300 circuits and drive circuit for analog switch, power circuit with
The connection of STM32F407VGT6 chips is used for system power supply, and USB3300 circuits are connect by USB interface with host computer, USB3300
Circuit also connect the data transmission for STM32F407VGT6 chips and host computer, analog switch with STM32F407VGT6 chips
Driving circuit is connect by I/O interfaces with test point, and drive circuit for analog switch also connect with STM32F407VGT6 chips and is used for
Different test points is tested.
6 feet of STM32F407VGT6 chips U1 connect 3.3V power supplys, STM32F407VGT6 chips U1 10,11,19,
20,21,22 feet are grounded, 12 one end foot crystal oscillator pipe Y1, the one end capacitance C4 of STM32F407VGT6 chips U1, STM32F407VGT6
The 13 foot crystal oscillator pipe Y1 other ends of chip U1, the one end capacitance C7, the capacitance C4 other ends and capacitance C7 other ends ground connection,
The one end 14 feet connection resistance R4, one end capacitance C8 of STM32F407VGT6 chips U1, capacitance C8 other ends ground connection, resistance R4 are another
One end connects 3.3V power supplys, the 27 feet ground connection of STM32F407VGT6 chips U1, and 28,50 feet of STM32F407VGT6 chips U1 connect
3.3V power supplys, one end 49 feet connection capacitance C13 of STM32F407VGT6 chips U1 are connect, the capacitance C13 other ends are grounded,
One end 70 feet connection resistance R3 of STM32F407VGT6 chips U1, the 71 feet connection resistance R2 mono- of STM32F407VGT6 chips U1
End, the resistance R3 other ends connect USB interface, the 73 feet connection capacitance C3 of STM32F407VGT6 chips U1 with the resistance R2 other ends
One end, capacitance C3 other ends ground connection, the 74 feet ground connection of STM32F407VGT6 chips U1,75 feet of STM32F407VGT6 chips U1
3.3V power supplys, one end 94 feet connection resistance R1 of STM32F407VGT6 chips U1 are connected, the resistance R1 other ends are grounded,
99 feet of STM32F407VGT6 chips U1 are grounded, and 100 feet of STM32F407VGT6 chips U1 connect 3.3V power supplys.
USB3300 circuits include that 0,1,2 feet of USB3300 chips U2, USB3300 chip U2 are grounded, USB3300 chips U2
4 feet connection one end protective tube F1 and connect 5V power supplys, protective tube F1 other ends connection one end capacitance C14, C15 and USB connect
1 foot of mouth J2, capacitance C14, C15 other end ground connection, 3,2 feet of 7, the 8 feet connection USB interface J2 of USB3300 chips U2, USB
4,0 foot of interface J2 is grounded, the one end 9 feet connection capacitance C30, the one end resistance R10 of USB3300 chips U2, the capacitance C30 other ends
3.3V power supplys are connected, 10 feet of resistance R10 other ends ground connection, USB3300 chips U2 connect the one end resistance R12, and resistance R12 is another
End ground connection, one end 15 feet connection capacitance C31 of USB3300 chips U2, capacitance C31 other ends ground connection, USB3300 chips U2's
16,25,30,31 feet connect 3.3V power supplys, one end 26 feet connection capacitance C12 of USB3300 chips U2, another terminations of capacitance C12
Ground, the one end 27 feet connection resistance R5, the one end crystal oscillator pipe Y2, the one end capacitance C10 of USB3300 chips U2, USB3300 chips U2's
28 feet connect the resistance R5 other ends, the crystal oscillator pipe Y2 other ends, the one end capacitance C9, capacitance C9, C10 other end ground connection, USB3300 cores
One end 29 feet connection capacitance C11 of piece U2, capacitance C11 other ends ground connection, the 32 feet connection resistance R9 mono- of USB3300 chips U2
End, resistance R9 other ends ground connection.Usb communication circuit uses USB3300 chips for core, the chip and STM32F407VGT6 cores
Piece is connected, and cooperation USBCLK, USBSTP, USBDIR and USBNXT can configure corresponding register in USB3300, completion pair
The initialization of USB3300, and send and receive the transmission that data complete data.DP the and DM pins and USB interface of USB3300
It is connected and completes the transmission of data.
Power circuit includes that 1 foot of linear voltage regulator AMS1117-3.3 chip U3, chip U3 are grounded, and 2 feet of chip U3 connect
It connects the one end capacitance C34, the one end capacitance C32 and connects 3.3V power supplys, one end 3 feet connection capacitance C33 of chip U3, capacitance C35 mono-
Hold and connect 5V power supplys, the capacitance C34 other ends, the capacitance C32 other ends, the capacitance C33 other ends and capacitance C35 other ends ground connection.
Since microcontroller needs 3.3V power supplys, and it is higher to the stability requirement of power supply, therefore, the design uses LDO（Linear voltage stabilization
Device)-AMS1117-3.3, all LDO by being sampled to output voltage, then feed back to adjust circuit de-regulation output stage tune
The impedance of homogeneous tube, when output voltage is relatively low, the impedance for just adjusting output stage becomes smaller to reduce the pressure drop of adjustment pipe, works as output
When voltage is higher, the impedance for just adjusting output stage becomes larger to increase the pressure drop of adjustment pipe, thus maintains output voltage
Stablize.C32 and C34 is output filter capacitor in figure, effect be reduce output voltage river in Shangdong Province wave and inhibit ASM1117 from exciting
It swings, C34 is high-frequency filter capacitor, and C32 is low frequency filtering capacitance.
Drive circuit for analog switch includes analog switch AD75019 chip U4, U5, U6, U7, the 1-64 feet point of interface P21
It Lian Jie not the 31-38 feet of analog switch AD75019 chips U4 and the 31-38 feet of 13-7 feet, analog switch AD75019 chips U5
And 13-7 feet, the 31-38 feet of analog switch AD75019 chips U6 and 13-7 feet, analog switch AD75019 chips U7
31-38 feet and 13-7 feet, the 3- of 15-30 foot the connecting interfaces P22 and P23 of analog switch AD75019 chips U4, U5, U6, U7
18 feet, one end 1 foot connection protective tube F21 of interface P22, one end 2 feet connection protective tube F22 of interface P22, protective tube F21 are another
One end connection+12V power supplys, protective tube F22 other end connection+5V power supplys, the 1 foot connection+12V power supplys of interface P23, interface P23
2 foot connection+5V power supplys, 23 feet connection protective tube F23 one end of interface P22, protective tube F23 other end connection -12V power supplys,
The 23 foot connection -12V power supplys of interface P23,19,20 feet of interface P22 and P23 are separately connected the 5 of RP1,3 feet, RP1 2,4,6,
8 foot connection+5V power supplys, 1 foot of the 22 feet connection RP1 of interface P22, the 24 feet ground connection of interface P22 and P23, the one end resistance R21 connects
+ 12V power supplys are connect, the resistance R21 other ends connect light emitting diode D1 anodes, light emitting diode D1 minus earths, the one end resistance R22
Connection+5V power supplys, the resistance R22 other ends connect light emitting diode D2 anodes, light emitting diode D2 minus earths, resistance R23 mono-
End ground connection, the resistance R23 other ends connect light emitting diode D3 anodes, light emitting diode D3 cathode connection -12V power supplys, and simulation is opened
The 4 foot connection -12V power supplys of pass AD75019 chips U4, U5, U6, U7,1, the 2 of analog switch AD75019 chips U4, U5, U6, U7
Foot is separately connected the 5 of RP1,3 feet, the 43 feet ground connection of analog switch AD75019 chips U4, U5, U6, U7, analog switch AD75019
The 42 foot connection+5V power supplys of chip U4, U5, U6, U7, the 41 foot connection+12V of analog switch AD75019 chips U4, U5, U6, U7
Power supply, 3 feet of the 44 feet connection analog switch AD75019 chips U5 of analog switch AD75019 chips U4, connects analog switch
3 feet of the 44 feet connection analog switch AD75019 chips U6 of AD75019 chips U5, connect the 44 of analog switch AD75019 chips U6
3 feet of foot connection analog switch AD75019 chips U7, the 22 of the 44 foot connecting interface P23 of analog switch AD75019 chips U7
Foot.The input pin of analog switch AD75019 connects 64 input points, AD75019AD75019 on the plate in the switch boards of channel
Include 256 analog switches in 16 × 16 arrays.Any X or Y pins can be used as inputting or export.It is any or all of
X terminal, which can program, is connected to any or all Y terminals.Interchanger can accommodate signal amplitude and be up to power rail, and
With 150 Ω of typical conducting resistance, there is very big advantage for the more product of the small resistance value of measurement and test point, lead to
The SIN serial input terminals and SCLK clock signals for crossing AD75019, can configure the arbitrary connection at the ends X and the ends Y pin, to
It may be implemented the either signal on plate in 64 points reaching ARM mainboards.Since AD75019 has cascade function,
By SCLK, the SCLK of the input terminal of next piece of channel switch boards of PCLK, DATAOUT mouthfuls of connections, PCLK, DATA_IN mouthfuls, it can be achieved that
The cascade of AD75019, and the cascade of arbitrary piece of channel switch boards may be implemented in this way, it can theoretically extend and appoint
Meaning test point.
34 feet of the 1 foot connection STM32F407VGT6 chips U1 of SN74LV16TDGGR chips U8, SN74LV16TDGGR cores
2,3 feet of piece U8 are separately connected 61,62 feet of STM32F407VGT6 chips U1, SN74LV16TDGGR chips U8 4,10,15,
21 feet are grounded, and the one end capacitance C1 connects 7, the 18 feet connection power supply 3.3V and capacitance of power supply 3.3V, SN74LV16TDGGR chip U8
The one end C5, capacitance C5 other ends ground connection, 5,6 feet of SN74LV16TDGGR chips U8 are separately connected STM32F407VGT6 chips U1
81,82 feet, 8,9 feet of SN74LV16TDGGR chips U8 are separately connected 38,39 feet of STM32F407VGT6 chips U1,
11,12,13,14 feet of SN74LV16TDGGR chips U8 are separately connected 40,41,42,43 feet of STM32F407VGT6 chips U1,
16,17 feet of SN74LV16TDGGR chips U8 are separately connected 44,45 feet of STM32F407VGT6 chips U1,
19,20 feet of SN74LV16TDGGR chips U8 are separately connected 46,55 feet of STM32F407VGT6 chips U1,
22,23,24 feet of SN74LV16TDGGR chips U8 are separately connected 56,57,34 feet of STM32F407VGT6 chips U1,
88 feet of 48, the 25 feet connection STM32F407VGT6 chips U1 of SN74LV16TDGGR chips U8, SN74LV16TDGGR chips U8
47,46,44,43,41,40,38,37,36,35,33,32,30,29,27,26 feet be separately connected interface J1 2,4,6,8,
10,12,14,16,18,20,22,24,26,28,30,32 foot, 42,31 feet and capacitance C2, C6 of SN74LV16TDGGR chips U8
One end connects 5V power supplys, 45,39,34, the 28 feet ground connection of capacitance C2, C6 other end and SN74LV16TDGGR chips U8, interface J1
34,36,38,40 feet ground connection, 33,35 feet of interface J1 connect power supply 3.3V, 37, the 39 feet connection power supply 5V of interface J1.
Described in this specification above content is only to the utility model example explanation.The utility model
Person of ordinary skill in the field can do described specific embodiment various modifications or supplement or use similar side
Formula substitutes, content without departing from the utility model specification or beyond the scope defined by this claim, should all
Belong to the scope of protection of the utility model.
Claims (6)
1. a kind of SCM Based universal high speed data transfer tests system, it is characterised in that：Including STM32F407VGT6
Chip, power circuit, USB3300 circuits and drive circuit for analog switch, power circuit connect use with STM32F407VGT6 chips
In system power supply, USB3300 circuits are connect by USB interface with host computer, USB3300 circuits also with STM32F407VGT6 cores
Data transmission of the piece connection for STM32F407VGT6 chips and host computer, drive circuit for analog switch pass through I/O interfaces and survey
Pilot connects, and drive circuit for analog switch is also connected from STM32F407VGT6 chips for testing different test points.
2. the SCM Based universal high speed data transfer of one kind described in accordance with the claim 1 tests system, feature exists
In：6 feet of the STM32F407VGT6 chips U1 connect 3.3V power supplys, STM32F407VGT6 chips U1 10,11,19,20,
21,22 feet are grounded, 12 one end foot crystal oscillator pipe Y1, the one end capacitance C4 of STM32F407VGT6 chips U1, STM32F407VGT6 cores
The 13 foot crystal oscillator pipe Y1 other ends of piece U1, the one end capacitance C7, the capacitance C4 other ends and capacitance C7 other ends ground connection,
The one end 14 feet connection resistance R4, one end capacitance C8 of STM32F407VGT6 chips U1, capacitance C8 other ends ground connection, resistance R4 are another
One end connects 3.3V power supplys, the 27 feet ground connection of STM32F407VGT6 chips U1, and 28,50 feet of STM32F407VGT6 chips U1 connect
3.3V power supplys, one end 49 feet connection capacitance C13 of STM32F407VGT6 chips U1 are connect, the capacitance C13 other ends are grounded,
One end 70 feet connection resistance R3 of STM32F407VGT6 chips U1, the 71 feet connection resistance R2 mono- of STM32F407VGT6 chips U1
End, the resistance R3 other ends connect USB interface, the 73 feet connection capacitance C3 of STM32F407VGT6 chips U1 with the resistance R2 other ends
One end, capacitance C3 other ends ground connection, the 74 feet ground connection of STM32F407VGT6 chips U1,75 feet of STM32F407VGT6 chips U1
3.3V power supplys, one end 94 feet connection resistance R1 of STM32F407VGT6 chips U1 are connected, the resistance R1 other ends are grounded,
99 feet of STM32F407VGT6 chips U1 are grounded, and 100 feet of STM32F407VGT6 chips U1 connect 3.3V power supplys.
3. the SCM Based universal high speed data transfer of one kind described in accordance with the claim 1 tests system, feature exists
In：The USB3300 circuits include that 0,1,2 feet of USB3300 chips U2, USB3300 chip U2 are grounded, USB3300 chips U2
4 feet connection one end protective tube F1 and connect 5V power supplys, protective tube F1 other ends connection one end capacitance C14, C15 and USB connect
1 foot of mouth J2, capacitance C14, C15 other end ground connection, 3,2 feet of 7, the 8 feet connection USB interface J2 of USB3300 chips U2, USB
4,0 foot of interface J2 is grounded, the one end 9 feet connection capacitance C30, the one end resistance R10 of USB3300 chips U2, the capacitance C30 other ends
3.3V power supplys are connected, 10 feet of resistance R10 other ends ground connection, USB3300 chips U2 connect the one end resistance R12, and resistance R12 is another
End ground connection, one end 15 feet connection capacitance C31 of USB3300 chips U2, capacitance C31 other ends ground connection, USB3300 chips U2's
16,25,30,31 feet connect 3.3V power supplys, one end 26 feet connection capacitance C12 of USB3300 chips U2, another terminations of capacitance C12
Ground, the one end 27 feet connection resistance R5, the one end crystal oscillator pipe Y2, the one end capacitance C10 of USB3300 chips U2, USB3300 chips U2's
28 feet connect the resistance R5 other ends, the crystal oscillator pipe Y2 other ends, the one end capacitance C9, capacitance C9, C10 other end ground connection, USB3300 cores
One end 29 feet connection capacitance C11 of piece U2, capacitance C11 other ends ground connection, the 32 feet connection resistance R9 mono- of USB3300 chips U2
End, resistance R9 other ends ground connection.
4. the SCM Based universal high speed data transfer of one kind described in accordance with the claim 1 tests system, feature exists
In：The power circuit includes that 1 foot of linear voltage regulator AMS1117-3.3 chip U3, chip U3 are grounded, and 2 feet of chip U3 connect
It connects the one end capacitance C34, the one end capacitance C32 and connects 3.3V power supplys, one end 3 feet connection capacitance C33 of chip U3, capacitance C35 mono-
Hold and connect 5V power supplys, the capacitance C34 other ends, the capacitance C32 other ends, the capacitance C33 other ends and capacitance C35 other ends ground connection.
5. the SCM Based universal high speed data transfer of one kind described in accordance with the claim 1 tests system, feature exists
In：The drive circuit for analog switch includes analog switch AD75019 chip U4, U5, U6, U7, the 1-64 feet difference of interface P21
Connect analog switch AD75019 chips U4 31-38 feet and 13-7 feet, analog switch AD75019 chips U5 31-38 feet with
And the 31- of 13-7 feet, the 31-38 feet of analog switch AD75019 chips U6 and 13-7 feet, analog switch AD75019 chips U7
38 feet and 13-7 feet, the 3-18 of 15-30 foot the connecting interfaces P22 and P23 of analog switch AD75019 chips U4, U5, U6, U7
Foot, one end 1 foot connection protective tube F21 of interface P22, one end 2 feet connection protective tube F22 of interface P22, protective tube F21 are another
End connection+12V power supplys, protective tube F22 other end connection+5V power supplys, the 1 foot connection+12V power supplys of interface P23, the 2 of interface P23
Foot connection+5V power supplys, one end 23 feet connection protective tube F23 of interface P22, protective tube F23 other end connection -12V power supplys, interface
19,20 feet of the 23 foot connection -12V power supplys of P23, interface P22 and P23 are separately connected the 5 of RP1,3 feet, 2,4,6,8 feet of RP1
Connection+5V power supplys, 1 foot of the 22 feet connection RP1 of interface P22, the 24 feet ground connection of interface P22 and P23, the connection of the one end resistance R21+
12V power supplys, the resistance R21 other ends connect light emitting diode D1 anodes, light emitting diode D1 minus earths, and the one end resistance R22 connects
+ 5V power supplys are connect, the resistance R22 other ends connect light emitting diode D2 anodes, light emitting diode D2 minus earths, the one end resistance R23
Ground connection, the resistance R23 other ends connect light emitting diode D3 anodes, light emitting diode D3 cathode connection -12V power supplys, analog switch
The 4 foot connection -12V power supplys of AD75019 chips U4, U5, U6, U7,1,2 feet of analog switch AD75019 chips U4, U5, U6, U7
It is separately connected 5,3 feet of RP1, the 43 feet ground connection of analog switch AD75019 chips U4, U5, U6, U7, analog switch AD75019 cores
The 42 foot connection+5V power supplys of piece U4, U5, U6, U7, the 41 foot connection+12V electricity of analog switch AD75019 chips U4, U5, U6, U7
Source, 3 feet of the 44 feet connection analog switch AD75019 chips U5 of analog switch AD75019 chips U4, connects analog switch
3 feet of the 44 feet connection analog switch AD75019 chips U6 of AD75019 chips U5, connect the 44 of analog switch AD75019 chips U6
3 feet of foot connection analog switch AD75019 chips U7, the 22 of the 44 foot connecting interface P23 of analog switch AD75019 chips U7
Foot.
6. a kind of SCM Based universal high speed data transfer tests system according to claim 2, feature exists
In：34 feet of the 1 foot connection STM32F407VGT6 chips U1 of SN74LV16TDGGR chips U8, SN74LV16TDGGR chips U8
2,3 feet be separately connected 61,62 feet of STM32F407VGT6 chips U1,4,10,15,21 feet of SN74LV16TDGGR chips U8
Ground connection, 7,18 feet that the one end capacitance C1 connects power supply 3.3V, SN74LV16TDGGR chip U8 connect power supply 3.3V and capacitance C5 mono-
End, capacitance C5 other ends ground connection, 5,6 feet of SN74LV16TDGGR chips U8 are separately connected STM32F407VGT6 chips U1's
8,9 feet of 81,82 foot, SN74LV16TDGGR chips U8 are separately connected 38,39 feet of STM32F407VGT6 chips U1,
11,12,13,14 feet of SN74LV16TDGGR chips U8 are separately connected 40,41,42,43 feet of STM32F407VGT6 chips U1,
16,17 feet of SN74LV16TDGGR chips U8 are separately connected 44,45 feet of STM32F407VGT6 chips U1,
19,20 feet of SN74LV16TDGGR chips U8 are separately connected 46,55 feet of STM32F407VGT6 chips U1,
22,23,24 feet of SN74LV16TDGGR chips U8 are separately connected 56,57,34 feet of STM32F407VGT6 chips U1,
88 feet of 48, the 25 feet connection STM32F407VGT6 chips U1 of SN74LV16TDGGR chips U8, SN74LV16TDGGR chips U8
47,46,44,43,41,40,38,37,36,35,33,32,30,29,27,26 feet be separately connected interface J1 2,4,6,8,
10,12,14,16,18,20,22,24,26,28,30,32 foot, 42,31 feet and capacitance C2, C6 of SN74LV16TDGGR chips U8
One end connects 5V power supplys, 45,39,34, the 28 feet ground connection of capacitance C2, C6 other end and SN74LV16TDGGR chips U8, interface J1
34,36,38,40 feet ground connection, 33,35 feet of interface J1 connect power supply 3.3V, 37, the 39 feet connection power supply 5V of interface J1.
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| CN112816854A (en) * | 2021-01-29 | 2021-05-18 | 江苏国芯科技有限公司 | Universal multifunctional test system based on single chip microcomputer |
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