CN108319200A - A kind of portable internet logic analyser - Google Patents
A kind of portable internet logic analyser Download PDFInfo
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- CN108319200A CN108319200A CN201810166185.1A CN201810166185A CN108319200A CN 108319200 A CN108319200 A CN 108319200A CN 201810166185 A CN201810166185 A CN 201810166185A CN 108319200 A CN108319200 A CN 108319200A
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- embedded system
- system plate
- logical data
- logic analyser
- portable internet
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The present invention discloses a kind of portable internet logic analyser, including logical data analyzer, embedded system plate, data acquisition circuit, clocked flip-flop circuit, LCD touch display screens, the data acquisition circuit, clocked flip-flop circuit is connected with logical data analyzer, the logical data analyzer is connected by peripheral I/O with embedded system plate, the LCD touch display screens are connected to the MIPI DSI external-connected ports being arranged on embedded system plate, embedded system in the embedded system plate is connected by the way that the Ethernet interface on the embedded system plate is arranged with LAN routing, or it is realized and exterior PC connection communication by WIFI module and mobile network's module.By the above-mentioned means, the present invention provides a kind of portable internet logic analyser, the advantages that supporting long-range display Internet-based, multi-user Cooperation, and support system online upgrading.
Description
Technical field
The present invention relates to portable internet logic analyser fields, and in particular to a kind of support internet teledata passes
The support of defeated, display, the logical data analyzer of multi-user Cooperation and support system online upgrading and embedded system interconnects
The time series data analysis instrument of the Digital Logical Circuits of net.
Background technology
Embedded system (Embedded system) is a kind of " is completely embedded into inside controlled device, for specific application
The dedicated computer system of design ".Application-centered, based on computer technology, software and hardware can be cut, and adapt to application system
The dedicated computer system united to strict demands such as function, reliability, cost, volume, power consumptions.Its system kernel is very small, specially
Strong with property, the combination of software systems and hardware closely, can generally be directed to the transplanting that hardware carries out system, even if in same product
Board is constantly modified with the variation and increase and decrease being also required in a series of product according to system hardware.Simultaneously for different
Task will also tend to carry out larger change to system.In addition its speed of service can handle live signal soon very much.
Logic analyser：Logic analyser is the instrument for analyzing digital display circuit logical relation.Logic analyser is to belong to several
According to a kind of Bus analyzer in domain test instrument, i.e., based on bus concept, while to the data flow in multiple data lines
The instrument observed and tested, this instrument are largely effective to the test and analysis of complicated digital display circuit.Logic analyser
It is the instrument for acquiring and showing digital signal from test equipment using clock, main effect is that sequential judges.Logic point
The effect of analyzer is that the operating condition of digital display circuit is shown using the form convenient for observation, and analysis and event are carried out to digital display circuit
Barrier judges.
Its main feature is as follows：There are enough input channels；With a variety of flexible triggering modes, it is ensured that observed
Data flow accurate positionin (can be detected for hardware with the running random procedure section of tracking system for software
And burr present in display system interferes).With memory function, single and aperiodicity data information can be observed, and can
Diagnose random faule.With delay ability, to analyze failure Producing reason.With attributive function, realize to being intended to obtain
Data selected, and delete extraneous data.With multiple display modes, available characters, memonic symbol, assembler language show journey
Sequence shows the sequential relationship between information with display datas such as binary system, octal system, the decimal system, hexadecimals with timing diagram.
Ability with driving time domain instrument, to show the true waveform of measured signal again and to be conducive to fault location.With reliable
Burr detectability.
The logic analyser that there are mainly of two types currently on the market：
A kind of is high-end desk-top instrument, with Keysight (being Deco skill) and Tektronix (Tyke) for representative, function
Powerful, for port number up to up to a hundred, sample frequency is up to 25GHz, and for clock up to 800MHz, this kind of product price is also very high
Expensive, general field engineer not always needs the logic analyser of such high-performance and high price.
Another is namely based on the Virtual Logic Analyzer of the Usage data collection card of PC, and this kind of product performance can expire
The requirement of sufficient common engineering teacher, sexual valence are relatively high.But this kind of analyzer must be based on PC, and limited performance is in PC structures and clock
Performance does not have system Scalability.
The major defect of above two scheme is：
1, the Shortcomings in portability, volume is relatively large, needs external offer power supply.
2, it in application, test data can only be stored in inside machine, needs to access test knot by interface or storage medium
Fruit.
3, do not have the characteristics of internet Real-Time Sharing data and remote operation.
With integrated circuit high speed development and electronic equipment extensive use, the application range of logic analyser is increasingly extensive,
In industry, business is civilian, and education is even military all with prodigious development space.Therefore easy to carry, function meets daily want
It asks, can have the extensive market space by the research and development of the logic analyser of internet cooperation share.
Invention content
The invention mainly solves the technical problem of providing a kind of portable internet logic analysers, combine logical number
According to the powerful real time data processing ability of the parallel data processing capacity and embeded processor of analyzer high speed, two parts
It cooperates and completes the function of logic analyser so that the logic analyser supports long-range display Internet-based, multi-user
Cooperation, and the advantages that support system online upgrading.
In order to solve the above technical problems, one aspect of the present invention is：A kind of portable internet is provided to patrol
Analyzer is collected, including logical data analyzer, embedded system plate, data acquisition circuit, clocked flip-flop circuit, LCD are touched and shown
Display screen, the data acquisition circuit, clocked flip-flop circuit are connected with logical data analyzer, and the logical data analyzer is logical
It crosses periphery I/O with embedded system plate to be connected, the LCD touch display screens are connected to the MIPI being arranged on embedded system plate
DSI external-connected ports are mounted on the embedded system in the embedded system plate by being arranged on the embedded system plate
The routing of Ethernet interface and LAN be connected, or realize to connect with exterior PC by WIFI module and mobile network's module and lead to
Letter.Embedded system plate carries out human-computer interaction by touch screen and user, and by network interface realization with LAN or mutually
On-line customer is connected.
In a preferred embodiment of the present invention, the data acquisition circuit is made of high speed voltage comparator, input
The voltage of signal is compared with threshold voltage, makes decision related with logic state signal 1 or 0, threshold voltage by with
Family is arranged by logical data analyzer, ranging from Transistor-Transistor Logic level to CMOS, ECL and User Defined thresholding.The data acquisition
Circuit is a kind of level shifting circuit realized based on high speed voltage comparator.The benchmark electricity of a comparator is set by user
Pressure, when the voltage of external signal higher than this reference voltage is considered logically high, with high level input logic data-analyzing machine；
It is considered as logic low less than this reference voltage, with low level input logic data-analyzing machine.Logical data analyzer will compare
The 32 road signals compared with device output acquire into data storage section and carry out triggering analysis simultaneously.
In a preferred embodiment of the present invention, the clocked flip-flop circuit is made of Low ESR probe and filter circuit,
It is filtered out and voltage change for introducing external clock and carrying out burr to clock signal, it is one so that the external clock of input is handled
Clock that is a clean and meeting logical data analyzer requirement.
In a preferred embodiment of the present invention, the logical data analyzer is provided with high-performance low-power-consumption FPGA and can compile
Journey chip, the FPGA programmable chips include two panels large capacity SRAM storage chips, are used as data respectively and keep in and be used as
FPGA configurations and Function Extension and jtag interface.
In a preferred embodiment of the present invention, the embedded system plate be provided with MIPIDSI display interfaces,
100MbpsEthernet network interfaces, standard wifi module and mobile network's module, the embedded system plate carrying can be cut out
Cut off source (SuSE) Linux OS.
The beneficial effects of the invention are as follows：A kind of portable internet logic analyser provided by the invention, combines logic
The powerful real time data processing ability of the parallel data processing capacity and embeded processor of data-analyzing machine high speed, two
Divide to cooperate and complete the function of logic analyser so that the logic analyser supports long-range display Internet-based, is mostly used
Family cooperates, and the advantages that support system online upgrading.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is a kind of structure chart of a preferred embodiment of portable internet logic analyser of the present invention；
Fig. 2 is a kind of structure chart of a preferred embodiment of portable internet logic analyser of the present invention.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
As shown in Figs. 1-2, the embodiment of the present invention includes：
A kind of portable internet logic analyser, including logical data analyzer, embedded system plate, data acquisition electricity
Road, clocked flip-flop circuit, LCD touch display screens, the data acquisition circuit, clocked flip-flop circuit with logical data analyzer
It is connected, the logical data analyzer is connected by peripheral I/O with embedded system plate, and the LCD touch display screens are connected to
The MIPI DSI external-connected ports being arranged on embedded system plate, the embedded system being mounted in the embedded system plate are logical
It crosses the Ethernet interface being arranged on the embedded system plate with LAN routing to be connected, or passes through WIFI module and movement
Network module is realized and exterior PC connection communication.
By the above-mentioned means, embedded system can be connected by the routing of Ethernet interface on system board and LAN or
It is realized by WIFI module and mobile network's module and is communicated with remote control person, can be surveyed by web page or cell phone application
Examination control and data collection.
Wherein, the data acquisition circuit is made of high speed voltage comparator, and used high speed voltage comparator has
Cascode is got rid of, all using differential amplification；The characteristics of pool bandwidth, gain and power consumption, makes collected a variety of Digital Logic letters
Acceptable digital level inside logical data analyzer number is converted to, voltage and the threshold voltage of input signal are compared
Compared with making decision related with logic state signal 1 or 0, threshold voltage is arranged by user by logical data analyzer, model
It encloses for Transistor-Transistor Logic level to CMOS, ECL and User Defined thresholding.
Further, the clocked flip-flop circuit is made of Low ESR probe and filter circuit, for introducing external clock
And burr is carried out to clock signal and is filtered out and voltage change, it is corresponding " 1 " because data-analyzing machine can only identify digital level
There are one minimum voltage request, corresponding " 0 " there are one highest voltage requests, and it is one so that the external clock of input is handled
Clock that is clean and meeting logical data analyzer requirement.By the above-mentioned means, realizing external clock triggering two in logic analyser
The switching and offer standard signal input of kind different mode, are convenient for the calibration of logic analyser.
Further, the logical data analyzer is provided with high-performance low-power-consumption FPGA programmable chips, for completing
Collected signal is carried out to the triggering analysis of different mode, and will be in the storage to logical data analyzer of processed signal
Portion.The FPGA programmable chips include two panels large capacity SRAM storage chips, are used as data respectively and keep in and be used as FPGA
Configuration and Function Extension and jtag interface.
The logical data analyzer using select High Performance FPGA, the chip be a low-power chip more
It is suitable for portable equipment.Simultaneously four parts are broadly divided into inside the logical data analyzer：
One, data storage section, which is mainly responsible for, caches the signal that comparator inputs to logical data analyzer, convenient for into
Row triggering analysis；
Two, analysis part is triggered, according to the information of triggering configuration, the signal data that data comparator inputs is analyzed
Filter out the signal data for needing to store；
Three, configuration section is triggered, the operating mode configuration that design information from the user completes logic analyser is received；
Four, system burning part, the function upgrading for the logic analyser that logical data analyzer is realized.
Further, the embedded system plate is provided with MIPIDSI display interfaces, 100MbpsEthernet networks connect
Mouth, standard wifi module and mobile network's module, the embedded system plate carrying can cut open source linux operating system.
The embedded system plate mainly completes point of the reading to bottom hardware data and agreement by linux operating systems
Analysis.It is interacted in real time with user by man-machine interaction unit, and network data is completed by network interface and network-driven
Transmission and reception.
The wifi module utilizes serial ports, the configuration information of WIFI module is passed to embedded system, then WIFI meetings
Response message is sent when last to by another serial ports, can return to the IP information of WIFI module, this when,
WIFI module has been equivalent to an AP, if there is equipment connects this router, then sends information to the ports IP of router,
WIFI module, which can receive the information that information WIFI module receives, to utilize serial ports that data are sent web page or cell phone application
Carry out testing and control and data collection.Utilize the transmission for a bit, realizing data.
Linux system can be carried out in human-computer interaction interface and be controlled, such as：
1. the parameter of logic analyser, such as threshold voltage are arranged by man-machine interface.
2. generating analysis circuit according to logic analyser parameter and module to be measured compiling together, and download；
3. all instructions register of human-computer interface module control action triggers model selection and configuration；
Logic analyser is stored and is analyzed to sampled signal, and multi-user's multithreading work simultaneously is realized by wifi module
Make
Embedded system is used as main side, FPGA components from end.Logical data analyzer passes through with embedded system is
Bus of uniting connection, is mainly used for transmitting the configuration information of different triggering patterns,
The selection of triggering pattern can influence subsequent signal sampling very big；From the triggered time, we have preceding triggering,
Centre triggering and rear triggering, an event of definition, then logic analyser can store before and after this event in a period of time
Signal intensity situation determines which kind of triggering mode used according to this signal；Can also have an edging trigger, level triggers and
Agreement triggers, according to some I2C that logic analyser provides, the decoding of SPI protocol, come the corresponding agreement triggering provided.
Then logical data analyzer system match configuration information and the processed signal data of logical data analyzer
Stream.Embedded system is mainly completed：To the protocal analysis of signal data, signal display control, human-computer interaction, logical data is divided
The burning of parser programmable system and upgrading, external network communication.
External touch display screen completes the display of signal, the input and human-computer interaction of setting information.
The course of work of the portable internet logic analyser of the application is as follows：
User can generate trigger port number, trigger position and triggering mode etc. by network interface or touch screen
The configuration information of logic analysis.Configuration information is passed to logical data analysis by the triggering administrative unit of embedded system by bus
Device internal trigger dispensing unit completes the configuration to the part of data acquisition of logic analyser by the dispensing unit.External signal
By the way that part of data acquisition becomes that the identifiable signal data of logical data analyzer is .ed while inputting into data storage section
By triggering analysis part, when triggering analysis part finds that the signal for meeting trigger condition begins to control data storage section and deposits
Store up valid data.Logical data analyzer is by the valid data of storage via being sent into embedded system after sram cache.It is embedded
System is exported by touch display screen by man-machine interaction unit or is passed through network interface transfers after completing corresponding protocal analysis
To other users.
The online upgrading process that the portable internet logic analyser also completes system is as follows：
User meets the system configuration file of logical data analyzer burning requirement via net on PC by what debugging was completed
Network interface stores the logical data analyzer HardwareUpgring part into embedded system.Embedded system is as main side via bus
The system burning process for completing logical data analyzer, carries out the online upgrading of logic analyser.
In short, the portable internet logic analyser of the application, has powerful internet connection and sharing capability.
Mainly solve five technical problems：Circuit bus test data collection module and data processing module；Instrumentation and data are aobvious
Show module, Internet data transmission module, system remote manipulation and hardware capability online upgrading.
The advantageous effect that the present invention is reached：Logical data analyzer itself is utilized can be will patrol the characteristics of concurrent working
Analyzer sample rate is collected to greatly improve.It completes to want real-time property using the powerful processing capability in real time of embedded system
Ask higher function as shown, the communication with PC, the parsing of serial protocol.System realizes the cost for greatly reducing design, section
About resource has good portability, and holding equipment is shared, multi-user Cooperation.The field-programmable of logical data analyzer
Technology and the real-time debugging function of embedded board make the more rapid side of upgrading of the enhancing and software of system hardware function
Just.
In conclusion the present invention provides a kind of portable internet logic analyser, it is flexible and convenient to use, it is power autonomous
And cost is relatively low, and will be able to have and be widely applied using the characteristic of internet cooperation share, combine logical data analysis
The powerful real time data processing ability of the parallel data processing capacity and embeded processor of device high speed, two parts cooperate with work
Make the function of completion logic analyser so that the logic analyser, which has, supports long-range display Internet-based, multi-user association
The advantages that making, supporting system online upgrading.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (5)
1. a kind of portable internet logic analyser, which is characterized in that including logical data analyzer, embedded system plate,
Data acquisition circuit, clocked flip-flop circuit, LCD touch display screens, the data acquisition circuit, clocked flip-flop circuit are and logic
Data-analyzing machine is connected, and the logical data analyzer is connected by peripheral I/O with embedded system plate, and the LCD touches aobvious
Display screen is connected to the MIPI DSI external-connected ports being arranged on embedded system plate, is mounted on embedding in the embedded system plate
Embedded system is connected by the way that the Ethernet interface on the embedded system plate is arranged with LAN routing, or passes through WIFI
Module and mobile network's module are realized and exterior PC connection communication.
2. portable internet logic analyser according to claim 1, which is characterized in that the data acquisition circuit packet
Containing high speed voltage comparator, for the voltage of input signal to be compared with threshold voltage, make with logic state signal 1 or
0 related decision, threshold voltage are arranged by user by logical data analyzer, ranging from Transistor-Transistor Logic level to CMOS, ECL and
User Defined thresholding.
3. according to the portable internet logic analyser described in claim 1,2, which is characterized in that the clocked flip-flop circuit
By Low ESR probe and filter circuit constitute, for from high speed voltage comparator introduce external timing signal and to clock signal into
Row burr filters out and voltage change, so that the external clock of input is handled and is one totally and meets logical data analyzer requirement
Clock.
4. portable internet logic analyser according to claim 1, which is characterized in that the logical data analyzer
High-performance low-power-consumption FPGA programmable chips are provided with, the FPGA programmable chips include that two panels large capacity SRAM stores core
Piece is used as data and keeps in and as FPGA configurations and Function Extension and jtag interface respectively.
5. portable internet logic analyser according to claim 1, which is characterized in that the embedded system plate is set
It is equipped with MIPIDSI display interfaces, 100MbpsEthernet network interfaces, standard wifi module and mobile network's module, it is described
The carrying of embedded system plate can cut open source linux operating system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810166185.1A CN108319200B (en) | 2018-02-28 | 2018-02-28 | Portable internet logic analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166185.1A CN108319200B (en) | 2018-02-28 | 2018-02-28 | Portable internet logic analyzer |
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| CN108319200A true CN108319200A (en) | 2018-07-24 |
| CN108319200B CN108319200B (en) | 2021-08-13 |
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| CN201810166185.1A Active CN108319200B (en) | 2018-02-28 | 2018-02-28 | Portable internet logic analyzer |
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Cited By (1)
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| CN109587011A (en) * | 2019-01-10 | 2019-04-05 | 北京新宇航星科技有限公司 | Multifunctional network ability meter and test method |
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| Publication number | Publication date |
|---|---|
| CN108319200B (en) | 2021-08-13 |
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