CN108763981A - A kind of RFID reader verification platform and verification method based on UVM - Google Patents
A kind of RFID reader verification platform and verification method based on UVM Download PDFInfo
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- CN108763981A CN108763981A CN201810460264.3A CN201810460264A CN108763981A CN 108763981 A CN108763981 A CN 108763981A CN 201810460264 A CN201810460264 A CN 201810460264A CN 108763981 A CN108763981 A CN 108763981A
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- rfid reader
- verify data
- uvm
- verification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0095—Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly
Abstract
The invention discloses a kind of RFID reader verification platform based on UVM, including test structure and test module to be verified are built by being then based on UVM, so portable strong；A kind of RFID reader verification method based on UVM of the present invention, verify data is generated by actuation generator, then verify data is transferred in test module to be verified by driver, test module to be verified returns to handling result in test structure after having handled verify data, it is compared by test structure, judge whether handling result is consistent with expected results, it can be obtained verification result, under the basis for ensureing basic verification, it is built using UVM, it is portable strong, it only needs to carry out a small amount of modification, it can be transplanted in the verification of other RFID readers.
Description
Technical field
The present invention relates to chip checking technical field, especially a kind of RFID reader verification platform based on UVM and test
Card method.
Background technology
Now in integrated circuit design, Front-end Design and verification carry out parallel, in general when designer uses
After the function that needs are realized is converted into RTL code by Verilog, the personnel of verification need to use Systemverilog or SystemC
Build verification platform, the verification platform of early stage is typically all single use Verilog to build verification example, and now most of
Verification platform is built using Systemverilog.
Since Systemverilog has increased many outstanding characteristics, such as constraint, coverage rate, interface characteristic newly, using
When verification platforms of the Systemverilog to build RFID reader, these characteristics bring a lot of convenience to building, but
The verification platform system of Systemverilog is more huge, and readable and portability is poor after platform building is complete, needs to carry out big
Amount change could apply in the verification of other RFID readers, and generic validation methodology (Universal
Verification Methodology, abbreviation UVM) clear layer, the verification platform built with it is clear in structure, and has
Extraordinary transplantability, so how using UVM to become problem to be solved to build the verification platform of RFID reader.
Invention content
To solve the above problems, the RFID reader verification platform that the purpose of the present invention is to provide a kind of based on UVM and
Verification method builds RFID verification platforms by using UVM so that platform portability enhances, it is only necessary to carry out a small amount of
Change can be applicable in the verification of other RFID readers.
Technical solution is used by the present invention solves the problems, such as it：
A kind of RFID reader verification platform based on UVM includes test structure based on UVM and to be verified to be tested
Demonstrate,prove test module, the test module to be verified be RFID reader chip, the RFID reader chip include sending module,
Verify data is transferred to transmission by receiving module, CRC parity check modules and des encryption module, the test structure respectively
In module, receiving module, CRC parity check modules and des encryption module, by sending module, receiving module, CRC odd evens school
It tests module and des encryption module is respectively handled verify data, and handling result is transferred in test structure, it is described
Test structure is verified according to the handling result that RFID reader chip exports.
Further, the test structure includes that verify data is input to the input module of RFID reader chip and is connect
The output module of the handling result of RFID reader chip is received, the input module includes being sent out for generating the excitation of verify data
Raw device and the driver connected with RFID reader chip, the actuation generator are connected with driver, and the driver will
Verify data is respectively transmitted in sending module, receiving module, CRC parity check modules and des encryption module.
Further, further include interface module for connecting test structure and RFID reader chip, it is described defeated
Enter module, output module, sending module, receiving module, CRC parity check modules and des encryption module respectively with interface mould
Block connects.
Further, the input module further includes the input monitoring mould being monitored to the input of RFID reader chip
Block, the output module include the output monitoring module being monitored to the output of RFID reader chip, the driver, defeated
Enter monitoring module, output monitoring module is connect with interface module respectively.
Further, the test structure further include generate anticipated output reference model module and by anticipated output with
Verify data is sent to reference model mould by the comparison module that the output of RFID reader chip is compared, the driver
Block, the comparison module are connect with reference model module and output module respectively.
Further, the test structure further includes the statistical module for statistical function coverage rate, the statistical module point
It is not connect with input monitoring module and output monitoring module.
A kind of RFID reader verification method based on UVM, includes the following steps：
A, actuation generator generates verify data；
B, test module to be verified is transferred to after driver drives verify data；
C, handling result is output to test structure after test module to be verified handles verify data；
D, test structure is compared according to handling result with anticipated output, is verified result.
Further, the step A actuation generators generate in verify data, the actuation generator generation meet short frame,
The first verification data of standard frame and position anti-collision frame, generation meet the second verify data of transponder card response, generate it is different with
The third verify data of machine number and the 4th verify data for generating different random numbers and wrong encryption data.
Further, the step B drive is transferred to after being driven to verify data in test module to be verified, described
First verification data is transferred to sending module by driver, and the second verify data is transferred to receiving module, third is verified number
According to CRC parity check modules are transferred to, the 4th verify data is transferred to des encryption module.
Further, first verification data, the second verify data, third are verified number by the driver by interface module
It is respectively transmitted in sending module, receiving module, CRC parity check modules and des encryption module according to, the 4th verify data.
The beneficial effects of the invention are as follows：A kind of RFID reader verification platform based on UVM that the present invention uses, including survey
Framework and test module to be verified are tried, wherein test module to be verified includes sending module, receiving module, CRC even-odd checks
Verify data is sent in test module to be verified by module and des encryption module, test structure, by sending module, is received
Module, CRC parity check modules and des encryption module are respectively handled verify data, tie processing after the completion of processing
Fruit return to test structure in, handling result is verified by test structure, test structure be based on UVM, by using
UVM builds RFID reader verification platform, under the basic function for ensureing verification, enhances the portable of entire verification platform
Property, it is only necessary to carry out a small amount of change, you can be applied in the verification of other RFID readers；
A kind of RFID reader verification method based on UVM of the present invention, the actuation generator in test structure can generate
Different verify data, for the verification of modules in test module to be verified, in test module to be verified to verify data
After being handled, handling result is transferred in test structure by test module to be verified, is carried out to handling result by test structure
Verification, realizes basic authentication function, and build entire verification platform by using UVM, enhances portability.
Description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is a kind of schematic diagram of the RFID reader verification platform based on UVM of the present invention；
Fig. 2 is a kind of flow chart of the RFID reader verification method based on UVM of the present invention.
Specific implementation mode
Referring to Fig.1, a kind of RFID reader verification platform based on UVM of the invention, includes the test structure based on UVM
1 and test module to be verified 2 to be verified, test module to be verified 2 of the invention is RFID reader chip, test structure 1
Some verify datas can be generated, and verify data is transferred in RFID reader chip, then in RFID reader chip
Module can handle corresponding verify data, and result is transmitted back in test structure 1 by treated, and test structure 1 is according to processing
As a result contrast verification is carried out, you can be verified as a result, the verification platform of the present invention is built based on UVM, so taking
The verification platform structure for building completion is more clear, and portability is also enhanced, if wishing to be transplanted to other verification platform
In, it is only necessary to carry out a small amount of change.
And RFID reader chip includes sending module 21, receiving module 22, CRC parity check modules 23 and DES
Encrypting module 24 is mainly handled verify data by this four modules when carrying out verification work, and each module corresponds to
What the verify data difference of processing, sending module 21 and receiving module 22 were verified is the type, acknowledgement type, system shape of data frame
Can state etc., the verification of CRC parity check modules 23 properly generate check bit, the verification of des encryption module 24 can correctly encrypt and
It can correctly be responded when encountering false key.
RFID reader chip is divided into analog portion and numerical portion, and verification work is primarily directed to data integrated circuit
Part, numerical portion is mainly using the kernel of Cortex-M0, and on-chip bus is using AHB-Lite buses, in bus
The peripheral hardware for including mainly also includes RAM and ROM other than four modules mentioned above.
Entire RFID reader chip using the system that can support type-A and type-B agreements in ISO14443,
Its design object is：With non-contact interface, type-A the and type-B agreements of ISO14443 can be supported；With higher peace
Full performance.
The general trees of UVM include the TOP layers of top, as the root of entire tree structure, under be divided into four
Basic component, be respectively i_agent (input agency), referencemode (reference model), Scoreboard (scoreboard),
And o_agent (output agent)；Include again 3 components at i_agent, is sequencer, driver and i_ respectively
The generator of monitor, sequencer as excitation, the effect of driver are to arrive the excitation driving that sequencer is generated
In DUT (test module 2 to be verified), i_monitor is used to monitor the input condition of DUT；Include an o_ under o_agent
Monitor, the output situation for monitoring DUT, the effect of referencemode be for DUT provide one be preferably expected it is defeated
Go out, output can be compared inside Scoreboard with the reality output of DUT.
In the above-mentioned UVM trees being previously mentioned, wherein i_agent is the input module 11 of the present invention,
Referencemode is the reference model module 13 of the present invention, and Scoreboard is the comparison module 14, o_agent of the present invention
For the output module 12 of the present invention, sequencer is the actuation generator 111 of the present invention, and driver is the driver of the present invention
112, i_monitor, o_monitor is respectively the input monitoring module 113 of the present invention, output monitoring module 121, and DUT is
Test module 2 to be verified, that is, RFID reader chip.
The test structure 1 of the present invention is built based on UVM, including input module 11, output module 12, reference model mould
Block 13, comparison module 14 and statistical module 15, input module 11 include actuation generator 111, driver 112 and input prison
Module 113 is controlled, output module 12 includes output monitoring module 121, and actuation generator 111 is connect with driver 112, driver
112 connect with reference model module 13, test module to be verified 2 respectively, by verify data be transferred to test module 2 to be verified with
And in reference model module 13, comparison module 14 is connect with reference model module 13 and output monitoring module 121 respectively, respectively
Anticipated output and reality output that the two transmission comes are received, and is compared, is judged whether consistent.
Specifically, verify data is respectively transmitted to sending module 21, receiving module 22, CRC even-odd checks by driver 112
In module 23 and des encryption module 24.
The invention also includes an interface module 3, the effect of interface module 3 is by test structure 1 and RFID reader core
Piece connects, and carries out the transmission of data, and the verify data that driver 112 is transmitted is transferred to RFID by interface module 3
In reader chip, handling result is transferred to by interface module 3 in test structure 1 by RFID reader chip again, and in order to
This input/output procedure is monitored, input monitoring module 113 and output monitoring module 121, input monitoring are just provided with
Module 113 and output monitoring module 121 are connect with interface module 3 respectively, RFID reader chip receive verify data and
When transmission process result, input monitoring module 113 and output monitoring module 121 are monitored it.
Specifically, test structure 1 further includes the statistical module 15 for statistical function coverage rate, statistical module 15 respectively with
Input monitoring module 113 and output monitoring module 121 connect.
With reference to Fig. 2, a kind of RFID reader verification method based on UVM of the invention includes the following steps：A, excitation hair
Raw device 111 generates verify data；B, driver 112 is transferred to test module 2 to be verified after being driven to verify data；C, it waits for
Handling result is output to test structure 1 by validation test module 2 after handling verify data；D, test structure 1 is according to place
Reason result is compared with anticipated output, is verified result.
Specifically, step A actuation generators 111 generate in verify data, and the generation of actuation generator 111 meets short frame, mark
The first verification data of quasi- frame and position anti-collision frame, generation meet the second verify data of transponder card response, generate different random
4th verify data of several third verify datas and generation different random number and wrong encryption data.
Specifically, survey to be verified is transferred to by interface module 3 after step B drive 112 drives verify data
In die trial block 2, wherein first verification data is transferred to sending module 21 by driver 112, and the second verify data is transferred to and is connect
Module 22 is received, third verify data is transferred to CRC parity check modules 23, the 4th verify data is transferred to des encryption mould
Block 24.
Verify data can be sent to ginseng by driver 112 while each verify data is sent to corresponding module
Model module 13 is examined, handling result is transferred to by the modules in reference model module 13 and test module to be verified 2 to be compared
It in module 14, is compared, is judged whether unanimously, if unanimously, function is correct by comparison module 14.
The present invention is based on UVM to build verification platform, and due to UVM, this body structure is more clear, so the verification platform built
Structure is also more clear, and portability is enhanced, and is if desired applied in the verification of other RFID reader, it is only necessary to
Carry out a small amount of modification.
The above, only presently preferred embodiments of the present invention, the invention is not limited in the above embodiments, as long as
It reaches the technique effect of the present invention with identical means, should all belong to the scope of protection of the present invention.
Claims (10)
1. a kind of RFID reader verification platform based on UVM, it is characterised in that：Include test structure (1) based on UVM and
Test module to be verified (2) to be verified, the test module (2) to be verified are RFID reader chip, and the RFID is read
Device chip includes sending module (21), receiving module (22), CRC parity check modules (23) and des encryption module (24), institute
It states test structure (1) and verify data is transferred to sending module (21), receiving module (22), CRC parity check modules respectively
(23) and in des encryption module (24), by sending module (21), receiving module (22), CRC parity check modules (23) and
Des encryption module (24) is respectively handled verify data, and handling result is transferred in test structure (1), the survey
Examination framework (1) is verified according to the handling result that RFID reader chip exports.
2. a kind of RFID reader verification platform based on UVM according to claim 1, it is characterised in that：The test
Framework (1) includes that verify data is input to the input module (11) of RFID reader chip and receives RFID reader chip
Handling result output module (12), the input module (11) includes the actuation generator for generating verify data
(111) and with RFID reader chip the driver (112) connected, the actuation generator (111) and driver (112) are even
It connects, verify data is respectively transmitted to sending module (21), receiving module (22), CRC even-odd check moulds by the driver (112)
In block (23) and des encryption module (24).
3. a kind of RFID reader verification platform based on UVM according to claim 2, it is characterised in that：Further include using
In the interface module (3) for connecting test structure (1) and RFID reader chip, the input module (11), output mould
Block (12), sending module (21), receiving module (22), CRC parity check modules (23) and des encryption module (24) respectively with
Interface module (3) connects.
4. a kind of RFID reader verification platform based on UVM according to claim 3, it is characterised in that：The input
Module (11) further includes the input monitoring module (113) being monitored to the input of RFID reader chip, the output module
(12) include the output monitoring module (121) being monitored to the output of RFID reader chip, it is the driver (112), defeated
Enter monitoring module (113), output monitoring module (121) is connect with interface module (3) respectively.
5. a kind of RFID reader verification platform based on UVM according to claim 2, it is characterised in that：The test
Framework (1) further includes generating the reference model module (13) of anticipated output and by the defeated of anticipated output and RFID reader chip
Go out the comparison module (14) being compared, verify data is sent to reference model module (13) by the driver (112), described
Comparison module (14) is connect with reference model module (13) and output module (12) respectively.
6. a kind of RFID reader verification platform based on UVM according to claim 4, it is characterised in that：The test
Framework (1) further includes the statistical module (15) for statistical function coverage rate, the statistical module (15) respectively with input monitoring
Module (113) and output monitoring module (121) connection.
7. a kind of verification method using any RFID reader verification platforms based on UVM of claim 1-6, feature
It is：Include the following steps：
A, actuation generator (111) generates verify data；
B, driver (112) is transferred to test module to be verified (2) after being driven to verify data；
C, handling result is output to test structure (1) after test module (2) to be verified handles verify data；
D, test structure (1) is compared according to handling result with anticipated output, is verified result.
8. a kind of RFID reader verification method based on UVM according to claim 7, it is characterised in that：The step A
Actuation generator (111) generates in verify data, and the actuation generator (111), which generates, meets short frame, standard frame and position erosion control
The first verification data of prominent frame generates the third verification for meeting the second verify data of transponder card response, generating different random number
Data and the 4th verify data for generating different random numbers and wrong encryption data.
9. a kind of RFID reader verification method based on UVM according to claim 8, it is characterised in that：The step B
Driver (112) is transferred to after being driven to verify data in test module to be verified (2), and the driver (112) is by
One verify data is transferred to sending module (21), the second verify data is transferred to receiving module (22), by third verify data
CRC parity check modules (23) are transferred to, the 4th verify data is transferred to des encryption module (24).
10. a kind of RFID reader verification method based on UVM according to claim 9, it is characterised in that：The driving
Device (112) is divided first verification data, the second verify data, third verify data, the 4th verify data by interface module (3)
It is not transferred in sending module (21), receiving module (22), CRC parity check modules (23) and des encryption module (24).
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