CN106294264B - Packet data analysis method and packet data analysis system - Google Patents
Packet data analysis method and packet data analysis system Download PDFInfo
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- CN106294264B CN106294264B CN201510247568.8A CN201510247568A CN106294264B CN 106294264 B CN106294264 B CN 106294264B CN 201510247568 A CN201510247568 A CN 201510247568A CN 106294264 B CN106294264 B CN 106294264B
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- transmission information
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0016—Inter-integrated circuit (I2C)
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
Abstract
The present invention provides a kind of packet data analysis method and packet data analysis system.Interface transmission protocols are based on by data receiver circuit and receive an at least package.The package transmission information of above-mentioned package is extracted by data receiver circuit, and above-mentioned package transmission information is stored in storage unit.Storage unit is connected to by external device (ED), to obtain the specific format file generated based on package transmission information.Above-mentioned specific format file is opened by external device (ED), to show package transmission information.To receive package by data transmission circuit and voluntarily extract package transmission information, it may be unnecessary to can analyze and detect the packet data transmitted by package serial line interface by expensive analysis instrument.
Description
Technical field
The invention relates to a kind of data analysing methods of coffret, and in particular to a kind of packet data point
Analysis method and packet data analysis system.
Background technique
For the serial package transmission interface of specific specifications, interface conveyer must be according to specific
Data packet is turned to multiple packages by package format, to transmit these packages by serial package transmission interface.As research and development people
Member is when being intended to detect the packet data that chip to be measured is transmitted via serial package transmission interface, it will usually using an analysis instrument come
Extraction is input to the digital signal that chip to be measured or chip to be measured are exported.In this way, research staff can be according in a display device
Whether shown signal content is normal to analyze and detect above extracted digital signal, uses and determines above-mentioned chip to be measured
Design it is whether normal.
Specifically, Figure 1A and Figure 1B is the configuration diagram of existing test macro.Figure 1A is please referred to, research staff is worked as
When the interface transmitting circuit of chip 10 to be measured is connected to protocol analyzer 20, protocol analyzer 20 can be according to 10 institute of chip to be measured
The interface transmission protocols used parse the packet data that chip 10 to be measured is exported, allow well research staff can further verify to
Survey the specification whether data that chip 10 is transmitted meet above-mentioned interface transmission protocols.In addition, Figure 1B is please referred to, research staff
Protocol analyzer 20 can be connected between the interface reception circuitry and package transmission end 30 of chip 10 to be measured, protocol analyzer 20
The 10 received packet data of institute of chip to be measured can be parsed, research staff is allowed to may further confirm that the 10 received number of institute of chip to be measured well
According to whether correct.However, protocol analyzer is not only expensive, and the data that research staff can verify that are not also elastic.Agreement point
Analyzer is also possible to the limitation used with the change of the specification of interface transmission protocols.Furthermore when chip has been set
When circuit board becomes commodity, just it is difficult to connect logic analyser again and is analyzed.
Summary of the invention
In view of this, the present invention provides a kind of packet data analysis method and packet data analysis system, passed by data
Transmission of electricity road receives package and voluntarily extracts package transmission information, it may be unnecessary to can analyze and detect by expensive analysis instrument
The packet data transmitted by package serial line interface.
The present invention proposes a kind of packet data analysis method, includes the following steps.It is passed by data receiver circuit based on interface
Defeated agreement receives an at least package.The package transmission information of above-mentioned package is extracted by data receiver circuit, and above-mentioned package is passed
Defeated information is stored in storage unit.Storage unit is connected to by external device (ED), is generated with obtaining based on package transmission information
Specific format file.Above-mentioned specific format file is opened by external device (ED), to show package transmission information.
In one embodiment of this invention, the above-mentioned package transmission information that package is extracted by data receiver circuit, and will envelope
The step of packet transmission information is stored in storage unit includes: by data receiver circuit according to the number in custom Rule Extraction package
Data, to obtain package transmission information.By the temporal information of data receiver circuit record package, to obtain package transmission information.
In one embodiment of this invention, the above-mentioned package transmission information that package is extracted by data receiver circuit, and will envelope
The step of packet transmission information is stored in storage unit further include: by the internal element of data receiver circuit record data receiver circuit
Mode of operation, to obtain package transmission information.
In one embodiment of this invention, above-mentioned packet data analysis method further include: by data receiver circuit according to connecing
Port transmission agreement solution packetized package, to obtain by transmission data and the package formatted data for being associated with interface transmission protocols.
In one embodiment of this invention, above-mentioned package transmission information include the specifically defined data that are transmitted in data with
And all or part of package formatted data.
In one embodiment of this invention, above-mentioned interface transmission protocols are mobile industry processor interface (Mobile
Industry Processor Interface, MIPI) agreement, and package formatted data includes the data that MIPI agreement is standardized
Form, virtual channel identification code, error correcting code and Cyclic Redundancy Code (cyclic redundancy code, CRC).
In one embodiment of this invention, above-mentioned that storage unit is connected to by external device (ED), it obtains and is believed based on package transmission
Breath and the step of specific format file generated include: by external device (ED) by the package transmission storage dump in storage unit
It (dump) is an original shelves.Original shelves are analyzed by external device (ED) and generate specific format file.
In one embodiment of this invention, above-mentioned that specific format file is opened by external device (ED), to show that package transmission is believed
The step of breath includes: to open specific format file using mode chart detector by external device (ED), is associated with package transmission with display
The waveform diagram of information.
The present invention proposes a kind of packet data analysis system comprising data receiver circuit, storage unit, and external dress
It sets.Data receiver circuit includes extraction module, and receives an at least package based on interface transmission protocols.Said extracted module is extracted
The package transmission information of package.Storage unit couples data receiver circuit, receives package transmission information simultaneously from data receiver circuit
Store package transmission information.External device (ED) is connected to storage unit via coffret, to obtain based on package transmission information
The specific format file of generation.External device (ED) opens specific format file, to show package transmission information.
In one embodiment of this invention, above-mentioned packet data analysis system further includes chip to be measured.Chip coupling to be measured
Data receiver circuit, packetized generate package by transmission data, and transmit package to data receiver based on interface transmission protocols
Circuit.
Based on above-mentioned, package transmission information is extracted by data receiver circuit and package transmission information automatically to be stored in one
In storage unit, the cost that the present invention can not only save purchase expensive machines also improves the convenience of coffret test.Again
Person, by data receiver circuit according to Rule Extraction package transmission information is made by oneself, the present invention can be in response to interface transmission protocols more
Optimal package transmission information correctly and is flexibly extracted needed for the transmission test of new and interface.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and it is detailed to cooperate attached drawing to make
Carefully it is described as follows.
Detailed description of the invention
Figure 1A and Figure 1B is the configuration diagram of existing test macro；
Fig. 2 is the configuration diagram of packet data analysis system shown by an embodiment according to the present invention；
Fig. 3 is the flow chart of packet data analysis method shown by an embodiment according to the present invention；
Fig. 4 is the schematic diagram of package transmission information shown by an embodiment according to the present invention；
Fig. 5 illustrates to be associated with the example of the waveform diagram of package transmission information shown by an embodiment according to the present invention
Figure.
Description of symbols:
10: chip to be measured；
20: protocol analyzer；
30: package transmission end；
200: packet data analysis system；
210: chip to be measured；
220: data receiver circuit；
221: extraction module；
230: storage unit；
240: external device (ED)；
I1, I2: coffret；
P1: package；
40: package transmission information；
50: waveform diagram；
Time_stamp: temporal information；
Over_flow: overflow state；
Err_status: error condition；
Heff: horizontal synchronizing signal logical value；
Eof: frame end delimiter；
Sof: frame start delimiter；
Ch_id: virtual channel identification code；
Data_type: data shape；
S301~S304: step.
Specific embodiment
Carry out interface transmission test compared to using expensive analysis instrument, the present invention by by data transmission circuit voluntarily
It extracts package transmission information and completes interface transmission test.In order to become apparent the contents of the present invention, it is exemplified below embodiment
The example that can actually implement accordingly as the present invention.
Fig. 2 is the configuration diagram of packet data analysis system shown by an embodiment according to the present invention.Please refer to figure
2, packet data analysis system 200 includes chip 210 to be measured, data receiver circuit 220, storage unit 230 and external device (ED)
240.Chip 210 to be measured passes through coffret I1 connection data receiver circuit 220.Coffret I1 is to support interface transmission association
The chip chamber connecting interface of view.For example, interface transmission protocols are, for example, mobile industry processor interface (Mobile
Industry Processor Interface, MIPI) agreement, inter-integrated circuit (Inter-Integrated Circuit,
I2C) agreement or chip chamber universal serial bus (Inter-chip USB) agreement, the present invention do not limit this.Chip 210 to be measured
The e.g. peripheral unit of electronic device seems imaging sensor, acceleration transducer or gyroscope etc., and the present invention is same to this
It does not limit.Chip 210 to be measured can packetized by transmission data generate package, and transmit package to number based on interface transmission protocols
According to reception circuit 220.
Data receiver circuit 220 is the circuit module for being responsible for receiving external data in a chip, and said chip is, for example, to scheme
As signal processor (Image Signal Processor, ISP) chip or application processor (Application
Processor, AP) chip that can be linked up by above-mentioned interface transmission protocols and chip 210 to be measured such as chip.In other words,
Data receiver circuit 220 can be considered the acceptor circuit relative to coffret I1.In general, data receiver circuit 220 can
Including receiving interface physical layer (Physical Layer, PHY), receiving interface physical layer may include multiple signal paths.With
For MIPI agreement, receiving interface physical layer includes a period of time Maitong road (clock lane) and an at least data channel (data
lane)。
In addition, data receiver circuit 220 may also include receiving interface controller, receiving interface controller can be passed according to interface
Defeated agreement solves the received package of packetized receiving interface physical layer institute.In the present embodiment, the reception of data receiver circuit 220
Interface entities layer receives at least package that chip 210 to be measured is transmitted based on interface transmission protocols, and receiving interface controller
At least package that packetized chip 210 to be measured is transmitted can be solved.It is noted that the data receiver circuit of the present embodiment
220 include extraction module 221.Extraction module 221 may include logic circuit, register and or firmware, to extract the package of package
Transmit information.According to the setting and interior design of extraction module 221, above-mentioned package transmission information may include package content, close
It is coupled to the mode of operation etc. of the temporal information of package and the internal element of data receiver circuit 220.
Storage unit 230 couples data receiver circuit 220, e.g. dynamic random access memory (Dynamic
Random Access Memory, DRAM), any device with data storage function such as storage card or hard disk, herein not
Limit its type.More specifically, storage unit 230 couples extraction module 221, and package transmission information is exported to storage
Unit 230 is stored.That is, when extraction module 221 extracts package transmission information, extraction module 221 is by package
Transmission information is sent to storage unit 230.
External device (ED) 240 be the computing device with calculation function, e.g. desktop computer, laptop or other
Computer configuation.External device (ED) 240 may include storage unit and processor.The storage unit of external device (ED) 240 be stored with software,
Program or instruction, and the processor of external device (ED) 240 can be loaded into above-mentioned software, program or instruction and complete specific function.Outside
Part device 240 can be connected via coffret I2 with storage unit 230.Coffret I2 and coffret I1 can be support
Identical or different interface transmission protocols, the present invention do not limit this.For example, coffret I2 and coffret I1 can
To be all to support the coffret of MIPI agreement, but the present invention is not limited thereto.
In the present embodiment, when external device (ED) 240 is connected to storage unit 230, external device (ED) 240 via coffret I2
The specific format file generated based on package transmission information can be obtained.In simple terms, the processor of external device (ED) 240 can pass through
A simulation tool software is executed to carry out back-end processing to package transmission information and generate specific format file.Specific format file
File format be, for example, Verilog hardware description language standard formulation numerical value change dump (Value change dump,
VCD) format, but the present invention is not limited thereto.Then, research staff can open specific format file using external device (ED) 240,
To show package transmission information by external device (ED) 240.In this way, the package transmission according to external device (ED) 240
Information, research staff is it can be seen that whether the data transmission between external device (ED) 240 and packet data analysis system 200 correct or envelope
Whether packet format meets the specification of interface transmission protocols.
Fig. 3 is the flow chart of packet data analysis method shown by an embodiment according to the present invention.The side of the present embodiment
Method is suitable for packet data analysis system 200 shown in Fig. 2, and each module shown in Fig. 2 of arranging in pairs or groups below illustrates this with element
The detailed step of embodiment.
Interface transmission protocols are based on by data receiver circuit 220 and receive at least one in step S301 with Fig. 3 referring to figure 2.
Package P1.In other words, chip 210 to be measured is based on interface transmission protocols and transmits package P1 to data receiver via coffret
Circuit 220.Later, by data receiver circuit 220 according to interface transmission protocols solution packetized package P1, to obtain by transmission data
With the package formatted data for being associated with interface transmission protocols.It is chip 210 to be measured data receiver to be sent to electricity by transmission data
The data on road 220 are herein.In order to be transmitted using based on interface transmission protocols, chip 210 to be measured can be according to interface transmission association
The standardized package format of view carrys out packetized and generates package P1 by transmission data.Opposite, data receiver circuit 220 receives
Packetized package P1 can be solved after package P1 and obtain by transmission data and the package in package P1 is additional to based on package format
Formatted data.
Using interface transmission protocols as mobile industry processor interface (Mobile Industry Processor
Interface, MIPI) for camera serial interfaces (Camera Serial Interface, CSI) in agreement, package format
Data may include data shape (data type), virtual channel identification code (the virtual channel that MIPI agreement is standardized
Identifier), error correcting code (Error Correction Code, ECC) and Cyclic Redundancy Code (cyclic
Redundancy code, CRC) etc..Data shape, virtual channel identification code, error correcting code are recorded in the package mark of package P1
Head, and Cyclic Redundancy Code is recorded in the package mark tail of package P1.
In step S302, the package transmission information of package P1 is extracted by data receiver circuit 220, and by above-mentioned package transmission
Information is stored in storage unit 230.In one embodiment, the extraction module 221 of data receiver circuit 220 can be according to custom rule
The numerical data in package P1 is extracted, to obtain package transmission information.For example, extraction module 221 can be according to custom rule
It extracts the package formatted data in the part field of packet header, also can extract the package format in the part field of package mark tail
Data.Either, extraction module 221 also can extract by the specifically defined data in transmission data.That is, package transmission is believed
Breath may include the specifically defined data and all or part of package formatted data transmitted in data.
In addition, in one embodiment, the extraction module 221 of data receiver circuit 220 can record the temporal information of package P1,
To obtain package transmission information.The temporal information of package P1 is conducive to generate special format file for external device (ED) 240.Implement one
In example, the extraction module 221 of data receiver circuit 220 records the mode of operation of the internal element of data receiver circuit 220, to obtain
Take package transmission information.The internal element of data receiver circuit 220 includes buffer, and the mode of operation of internal element can be
Overflow (overflow) state of buffer.
Later, in step S303, storage unit 230 is connected to by external device (ED) 240, is based on package transmission information to obtain
And the specific format file generated.In one embodiment, when external device (ED) 240 is connected to storage unit 230 by coffret I2
When, the package transmission storage dump (dump) in storage unit 230 is an original shelves (raw file) by external device (ED) 240.It
Afterwards, above-mentioned original shelves are analyzed by external device (ED) 240 and generates specific format file.Specifically, storage unit 230 can utilize biography
Defeated interface I2 exports the original shelves generated based on package transmission information.External device (ED) 240 will unlock this original shelves, thus
Obtain the bit data that is extracted temporal information on a timeline and accordingly generation specific format file.
For example, specific format file can be the VCD file for meeting VCD format, and VCD format is that one kind is based on
The file format of ASCII character.Specifically, due to the temporal information that original shelves include package P1, that is, each stroke count digital data
Relationship on a timeline.Therefore, original shelves can be converted to VCD by executing a simulation tool software by external device (ED) 240
File.
In step S304, specific format file is opened by external device (ED) 240, to show package transmission information.Specifically,
External device (ED) 240 can use mode chart detector (waveform viewer) Lai Kaiqi specific format file, be associated with envelope with display
The waveform diagram of packet transmission information.For file is VCD file in the specific format, research staff is soft using a mode chart detector
Part opens VCD grades, and in package transmission information be extracted data also can the mode of waveform diagram be shown in display device.
In this way, research staff can carry out the inspection of data and point of interface transmission protocols by inspecting the waveform diagram in display device
Analysis.
It is noted that research staff can not benefit when chip has been set on circuit board and has become electronic product
Data analysis or package specification verification are carried out to the received packet data of chip institute with MIPI protocol analyzer.In comparison,
Even if chip has been set on circuit board and has become electronic product, since the present invention can will be transmitted by data receiver circuit
Packet data extracts and in the storage unit that is stored in electronic device, therefore research staff can will be deposited using external device (ED)
Package transmission information in storage unit is read out, further to count to the packet data transmitted by data receiver circuit
According to analysis or package specification verification.
Illustrate the present invention to become apparent from, Fig. 4 will be MIPI association by imaging sensor, interface transmission protocols of chip to be measured
View, data receiver circuit is set in image-signal processor chip, and be image data by transmission data is that example is said
It is bright.It is appreciated that when chip to be measured is imaging sensor and data receiver circuit is set to image-signal processor chip
When interior, data that chip to be measured will be sent to the image data extracted by photosensitive element in image-signal processor chip
Receive circuit.For the data receiver circuit to transmit image data, the data receiver circuit of this example can be by MIPI
Storage unit is recorded in data shape, virtual channel identification code and the protocol-dependent error message of MIPI that agreement is standardized
In.In addition, the data receiver circuit of this example can also be by the overflow state recording of buffer into storage unit.Furthermore
The data receiver circuit of this example can also be by frame start delimiter in image data (Start-of-frame), frame end delimiter
(End-of-frame) it is recorded in storage unit.
Fig. 4 is the example schematic of package transmission information shown by an embodiment according to the present invention.Referring to figure 4., base
In the package transmission information 40 that a package generates data length be 32 bits.However, the present invention believes package transmission
The data length of breath is simultaneously without restriction.Implement in example at other, the data length of package transmission information is also possible to
36bits, 48bits or other customized length.In example shown in Fig. 4, package transmission information 40 is including data length
Temporal information time_stamp, the data length of 14 bits are the buffer data overflow state over_flow of 1 bit, data
Length is that error condition Err_status, the data length of 6 bits are the horizontal synchronizing signal logical value heff of 1 bit, data
Length is the frame end delimiter Eof of 1 bit, data length is 1 bit frame start delimiter Sof, data length are 2 bits
Virtual channel identification code ch id and data shape data_type.However, it should be noted that, package transmission shown in Fig. 4
Information 40 is only exemplary illustrated, is not intended to limit the invention.According to above description, those skilled in the art can be according to reality
Demand and each data field and content for determining package transmission information 40.
Fig. 5 illustrates to be associated with the example of the waveform diagram of package transmission information shown by an embodiment according to the present invention
Figure.It in this example, is to be illustrated so that particular file format is VCD file as an example, but the present invention is not restricted to this.It please join
According to Fig. 5, external device (ED) can open VCD file using a mode chart detector, so that mode chart 50 is shown in display device
On.As shown in figure 5, mode chart 50 includes being associated with the waveform DT_w of data shape, being associated with the waveform of virtual channel identification code
VC_w, the waveform SOF_w for being associated with frame start delimiter, the waveform EOF_w for being associated with frame end delimiter, it is associated with level together
The waveform Hsync of signal logic value is walked, and is associated with the waveform Err_w of error condition.Base this, research staff can be according to waveform
Whether Figure 50 is normal come the package transmitting for detecting interface transmission protocols, and whether the image data also in observable package is correct.With
For waveform 50, since waveform Hsync, waveform Err_w, waveform SOF_w and waveform EOF_w have not expected behavior, because
This research staff can improve or correct accordingly to chip to be measured.
In conclusion extracting package transmission information by data receiver circuit and package transmission information automatically to be stored in one
In storage unit, the cost that the present invention can not only save purchase expensive machines also improves biography of the test based on interface transmission protocols
The convenience of defeated interface testing.Furthermore by data receiver circuit according to Rule Extraction package transmission information is made by oneself, the present invention can
Optimal package transmission correctly and is flexibly extracted needed for update and interface transmission test in response to interface transmission protocols
Information.In addition to this, show that research staff can accurately analyze chip to be measured and be exported with waveform by the file conversion of rear end
Signal and data content it is whether normal.When chip has been set to circuit board, research staff still can be according to storage unit
Interior package transmission information is detected and is analyzed to the package transmitted by coffret.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of packet data analysis method characterized by comprising
One interface transmission protocols are based on by the data receiver circuit in chip and receive an at least package from chip to be measured；
The package transmission information of an at least package is extracted by the data receiver circuit in the chip, and by the core
The package transmission information is stored in a storage unit by the data receiver circuit in piece；
The storage unit is connected to by an external device (ED), to obtain the particular bin generated based on the package transmission information
Formula file；And
The specific format file is opened by the external device (ED), to show the package transmission information,
The package transmission information of an at least package is wherein extracted by the data receiver circuit, and the package transmission is believed
Ceasing the step of being stored in the storage unit includes:
As the data receiver circuit according to the numerical data in an at least package described in a custom Rule Extraction, described in obtaining
Package transmission information；And
The temporal information of an at least package is recorded, by the data receiver circuit to obtain the package transmission information.
2. packet data analysis method according to claim 1, which is characterized in that further include:
The mode of operation of the internal element of the data receiver circuit is recorded, by the data receiver circuit to obtain the package
Transmit information.
3. packet data analysis method according to claim 1, which is characterized in that further include:
As the data receiver circuit at least package according to the interface transmission protocols solution packetized, transmitted with obtaining
Data and the package formatted data for being associated with the interface transmission protocols.
4. packet data analysis method according to claim 3, which is characterized in that the package transmission information includes described
By the specifically defined data and all or part of package formatted data in transmission data.
5. packet data analysis method according to claim 3, which is characterized in that the interface transmission protocols are mobile produce
Industry processor interface agreement MIPI, the package formatted data include data shape, the virtual channel knowledge that MIPI agreement is standardized
Other code, error correcting code and Cyclic Redundancy Code CRC.
6. packet data analysis method according to claim 1, which is characterized in that be connected to by the external device (ED) described
Storage unit, obtain generated based on the package transmission information the specific format file the step of include:
By the external device (ED) by the package transmission storage dump in the storage unit be an original shelves；And
The original shelves are analyzed by the external device (ED) and generate the specific format file.
7. packet data analysis method according to claim 1, which is characterized in that open the spy by the external device (ED)
Determine formatted file, includes: the step of the package transmission information to show
The specific format file is opened using a mode chart detector by the external device (ED), the package is associated with display
Transmit the waveform diagram of information.
8. a kind of packet data analysis system characterized by comprising
One chip to be measured；
A data receiver circuit in chip, including an extraction module are connect based on an interface transmission protocols from the chip to be measured
An at least package is received, wherein the extraction module extracts the package transmission information of an at least package；
One storage unit couples the data receiver circuit, receives the package transmission information simultaneously from the data receiver circuit
Store the package transmission information；
One external device (ED) is connected to the storage unit via a coffret, to obtain based on the package transmission information
The specific format file generated, wherein the external device (ED) opens the specific format file, to show the package transmission
Information,
Wherein the data receiver circuit captures the numerical data in an at least package according to a custom rule, to obtain
The package transmission information, and the temporal information of an at least package is noted down, to obtain the package transmission information.
9. packet data analysis system according to claim 8, which is characterized in that the chip to be measured couples the number
According to circuit is received, packetized is generated an at least package by transmission data, and transmits institute based on the interface transmission protocols
An at least package is stated to the data receiver circuit.
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| CN201510247568.8A CN106294264B (en) | 2015-05-15 | 2015-05-15 | Packet data analysis method and packet data analysis system |
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| CN201510247568.8A CN106294264B (en) | 2015-05-15 | 2015-05-15 | Packet data analysis method and packet data analysis system |
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| CN100498732C (en) * | 2007-06-13 | 2009-06-10 | 威盛电子股份有限公司 | Universal serial bus device test system and its method |
| CN102495920B (en) * | 2011-11-21 | 2014-06-25 | 南京中新赛克科技有限责任公司 | Integrated logic analysis module based on PCIe (peripheral component interconnection express) for FPGA (field programmable gate array) |
| CN104237760B (en) * | 2013-06-08 | 2017-05-10 | 京元电子股份有限公司 | Testing device and testing method for semiconductor components |
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