CN107656833A - A kind of CRC computing devices and computational methods - Google Patents
A kind of CRC computing devices and computational methods Download PDFInfo
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- CN107656833A CN107656833A CN201711078641.9A CN201711078641A CN107656833A CN 107656833 A CN107656833 A CN 107656833A CN 201711078641 A CN201711078641 A CN 201711078641A CN 107656833 A CN107656833 A CN 107656833A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
- G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
- G06F11/1004—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's to protect a block of data words, e.g. CRC or checksum
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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Abstract
The invention discloses a kind of CRC computing devices, multiple CRC computing modules are formed into CRC computing module groups, different CRC computing modules are combined according to input value bit bit wide/byte wide, script bit bit wide/larger input value of byte wide bit bit wide/less input value of byte wide can be split into, reduce the classification of look-up table, so as to improve the maximum clock frequency of CRC computing module groups steady operation on FPGA.Simultaneously as CRC computing devices include multiple CRC computing modules in the embodiment of the present invention, multiple combinations can be carried out between module, therefore can also flexibly select for same CRC computing devices, bit bit wide/byte wide of its input value.The embodiment of the present invention also provides a kind of CRC computational methods, can equally realize above-mentioned technique effect.
Description
Technical field
The present invention relates to CRC check technical field, more specifically to a kind of CRC computing devices and computational methods.
Background technology
In data transmission procedure, no matter how perfect the design of Transmission system is again, and mistake is always present, so as to reciever
Receive the data of mistake.The accuracy of data is received to improve reciever as far as possible, is needed before recipient receives data pair
Data carry out error detection, and the result for detection that and if only if receives when being correct and really accepts data just now.The mode of detection has
It is a variety of, it common are CRC (CRC) etc..
CRC parallel computing refer to one or more calculating cycle complete more bits, multibyte input data school
Test calculating.Existing CRC check module is the wide CRC parallel computing module of a fixed bit, and its output result is by input number
According to bit and each bit of CRC initial values between XOR determine.Realization for CRC parallel computing, generally
Using the hardware configuration of look-up table, by look-up table, the XOR of multi input logic can be integrated into the look-up table knot of multistage
Structure.Such as it is internal in a FPGA be provided with adaptive logic unit (ALUT/ALM), its can at most be integrated into positive one it is 6 defeated
Enter the look-up table singly exported.For the input value of 1024bit bit wides, 561 maximum XOR quantity is had, therefore for this
Secondary input value, CRC operation could be completed by having 4 grades of look-up table.For the bigger data of bit width values, required looks into
Look for table level number more.
In addition, current calculating CRC hardware device, after the completion of design, can only be counted to the input value of same value
Calculate, such as according to hardware design needs, devise 1024bit input value bit wide, then this hardware condition, can only handle
1024bit input value, the input value of other bit wides can not all be handled.
Therefore, how flexibly to change the input bit wide of CRC computing devices, be that those skilled in the art need what is solved to ask
Topic.
The content of the invention
It is an object of the invention to provide a kind of CRC computing devices and method, flexibly to change the defeated of CRC computing devices
Enter bit wide.
To achieve the above object, the embodiments of the invention provide following technical scheme：
A kind of CRC computing devices, including：
Input switch, for initial input value to be inputted to CRC computing module groups；
The CRC computing modules group being connected with the input switch, the CRC computing modules group include multiple pass through
The connected CRC computing modules of exchange network；The CRC computing modules group be used for using according to rule of combination determine and described group
Normally corresponding target CRC computing modules calculate the result of calculation of initial input value；Wherein, the rule of combination is according to just
Beginning input value determined combination rule；
The output switch being connected with the CRC computing modules group, for exporting the final calculating knot of the initial input value
Fruit.
Wherein, the CRC computing modules are provided with the look-up table or combinational logic circuit for being used for calculating CRC results.
Wherein, the CRC computing modules are provided with break-make point, and the break-make point is used to be disconnected or connected according to the rule of combination
The exchange network is connect, so as to be connected between the target CRC computing modules.
Wherein, in addition to：
Processing module, for being controlled the exchange network between the target CRC computing modules to connect according to the rule of combination
On-off is opened.
A kind of CRC computational methods, including：
Input initial input value；
Using determining that it is described initial that corresponding with rule of combination target CRC computing modules calculate according to rule of combination
The result of calculation of input value；Wherein described rule of combination is according to initial input value determined combination rule；
Export the result of calculation.
Wherein, it is described to utilize the target CRC computing module meters corresponding with the rule of combination determined according to rule of combination
The result of calculation of the initial input value is calculated, including：
It is used to calculate using in the target CRC computing modules corresponding with the rule of combination determined according to rule of combination
The look-up table or combinational logic circuit of CRC results calculate the result of calculation of initial input value.
Wherein, it is described to utilize the target CRC computing module meters corresponding with the rule of combination determined according to rule of combination
The result of calculation of the initial input value is calculated, including：
Counted using according to rule of combination with the target CRC corresponding with the rule of combination that the break-make mode of break-make point determines
Calculate the result of calculation that module calculates initial input value.
Wherein, in addition to：
The switching network between the target CRC computing modules determined according to the rule of combination is controlled using processing module
Network is connected or disconnected.
By above scheme, a kind of CRC computing devices provided in an embodiment of the present invention, including input switch, it is used for
Initial input value is inputted to CRC computing module groups；The CRC computing modules group being connected with the input switch, the CRC
Computing module group includes multiple CRC computing modules being connected by exchange network；The CRC computing modules group is used to utilize root
The target CRC computing modules corresponding with the rule of combination determined according to rule of combination calculate the result of calculation of initial input value；
Wherein, the rule of combination is according to initial input value determined combination rule；The output being connected with the CRC computing modules group
Switch, for exporting the final calculation result of the initial input value.
As can be seen here, a kind of CRC computing devices provided in an embodiment of the present invention, by multiple CRC computing modules composition CRC meters
Module group is calculated, is combined different CRC computing modules according to input value bit bit wide/byte wide, can be by script bit
The larger input value of bit wide/byte wide has split into bit bit wide/less input value of byte wide, reduces point of look-up table
Level, so as to improve the maximum clock frequency of CRC computing module groups steady operation on FPGA.Simultaneously as the present invention is implemented
CRC computing devices include multiple CRC computing modules in example, and multiple combinations can be carried out between module, therefore for same CRC
Computing device, bit bit wide/byte wide of its input value can also be selected flexibly.The embodiment of the present invention also provides a kind of CRC
Computational methods, it can equally realize above-mentioned technique effect.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of CRC computing devices structural representation disclosed in the embodiment of the present invention；
Fig. 2 is a kind of specific CRC computing device structural representations disclosed in the embodiment of the present invention；
Fig. 3 is a kind of CRC computational methods flow chart disclosed in the embodiment of the present invention.
Embodiment
Realized for the FPGA of Parallel CRC, because the hardware configuration of its special look-up table (ALUT/ALM), CRC check
The multi input logic XOR of calculating can be summed up into multi-level lookup table structure, and the degree of parallelism of input bit is higher, then searches
The series of table is more, has had a strong impact on the efficiency of CRC check.In addition, the hardware of existing CRC check at present is all to fix simultaneously
Row degree, such as hardware design 1024 bit degree of parallelism, then this hardware may only handle the input value of 1024,
It can not be realized more than 1024bit or less than 104bit on this hardware.Therefore the embodiment of the present invention provides a kind of CRC calculating and set
Standby and computational methods, the CRC input values of the different bit bit wides of processing are realized with flexible, and are effectively reduced look-up table series,
Improve verification efficiency.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, a kind of CRC computing devices provided in an embodiment of the present invention, specifically include：
Input switch 101, for initial input value to be inputted to CRC computing module groups；
Specifically, input switch 101 is provided with CRC computing devices, input switch 101 is used to input initial input value,
It should be noted that input switch can once input one or more initial input values, counted by CRC computing module groups
Calculate, if ensure that initial input value or initial input value sum are not more than the maximum parallelism degree of CRC computing module groups, that is, not
More than the degree of parallelism sum of each CRC computing modules in CRC computing module groups.
The CRC computing modules group 102 being connected with the input switch, the CRC computing modules group includes multiple
The CRC computing modules being connected by exchange network, module 1 to module N；The CRC computing modules group is used for using according to combination
The target CRC computing modules corresponding with the rule of combination that rule determines calculate the result of calculation of initial input value；Wherein, institute
It is according to initial input value determined combination rule to state rule of combination；
Specifically, CRC computing modules group 102 is connected to input switch 101, wherein, it is every in CRC computing modules group 102
One CRC computing module is connected with input switch 101, and specific company between which CRC computing module and input switch
Line turns on, and can be determined by rule of combination, and which CRC processing module configures initial input value according to rule of combination first transfers to enter
Row calculates；It is connected in addition, equally having between each CRC processing module for transmitting the exchange network of data, turns on situation root
Determined according to rule of combination, that is, configured according to rule of combination and calculate initial input value jointly by that several CRC computing module.And
Rule of combination then determines according to initial input value.
As shown in table 1, three are listed respectively by taking the CRC parallel computing of the byte wide of 248 bit bit wides/31 as an example in table 1
Kind CRC computing modules group 102, wherein, there is the different CRC of degree of parallelism to calculate mould in the first CRC computing modules group 102 respectively
Block, the byte wide of 248 bit bit wides/31 can be decomposed into 8bit/1byte+16bit/2bytes+32bit/4bytes+
64bit/8bytes+128bit/16bytes is combined, and each computing module in CRC computing modules group 102 can separately design
For module 1 be 8bit/1byte, module 2 is 16bit/2bytes, module 3 is 32bit/4bytes, module 4 is 64bit/
8bytes, module 5 are 128bit/16bytes, therefore, when input value is 24bit, you can determine rule of combination be, it is necessary to by
Module 1 combines with module 2, wherein, rule of combination can determine to turn between input switch 101 and module 1, will be just initial
Input value 24bit transfers to module 1, and the network between module 1 and module 2 is turned on, by module 1 and module 2 jointly to input value
Calculated.
Table 1
| 31bytes/248bit | Example 1 | Example 2 | Example 3 |
| CRC computing modules 1 | 1byte/8bit | 2bytes/16bit | 10bit |
| CRC computing modules 2 | 2bytes/16bit | 2bytes/16bit | 10bit |
| CRC computing modules 3 | 4bytes/32bit | 8bytes/64bit | 50bit |
| CRC computing modules 4 | 8bytes/64bit | 8bytes/64bit | 60bit |
| CRC computing modules 5 | 16bytes/128bit | 11bytes/88bit | 118bit |
It should be noted that the degree of parallelism of number of modules and each module can be according to specific in CRC computing module groups
Situation carries out assessment design, three kinds of situations being not limited in table 1.
The output switch 103 being connected with the CRC computing modules group, for exporting the final calculating of the initial input value
As a result.
Specifically, output switch 103 is connected with CRC computing module groups, and wherein output switch 103 and each CRC is calculated
Module is connected, and conducting situation is determined by rule of combination, in addition, output switch 103 can be connected with a CRC computing module,
It can be connected with multiple CRC computing modules, concrete condition is entered simultaneously depending on input value number, when needing multiple initial input values
When row calculates, multiple data flows are had, then are determined according to the number for the data flow for carrying out CRC calculating.Output switch 103 with it is final
Turned between the module of calculating, final result is exported.
As can be seen here, multiple CRC computing modules are formed into CRC computing modules group 102 in this programme, according to input value bit
Different CRC computing modules are combined by bit wide/byte wide, can be by script bit bit wide/larger input value of byte wide
Bit bit wide/less input value of byte wide has been split into, has reduced the classification of look-up table, so as to improve CRC computing modules
The maximum clock frequency of group steady operation on FPGA.Simultaneously as in the embodiment of the present invention CRC computing devices include it is multiple
CRC computing modules, multiple combinations can be carried out between module, therefore for same CRC computing devices, the bit of its input value
Width/byte wide can also be selected flexibly.
The embodiment of the present invention provides a kind of specific CRC computing devices, is different from above-described embodiment, the embodiment of the present invention pair
CRC computing modules have done further restriction and explanation in above-described embodiment, and other guide is roughly the same with above-described embodiment, specifically
It may be referred to above-described embodiment.Specifically, the CRC computing modules are provided with the look-up table for being used for calculating CRC results or combination is patrolled
Collect circuit.The CRC computing modules are provided with the look-up table or combinational logic circuit for being used for calculating CRC results.
Specifically, different implementations can be used for each module in CRC computing modules group 102, such as
It can be realized by look-up tables'implementation or the parallel combined logic circuit, do not limited here.
The embodiment of the present invention provides a kind of specific CRC computing devices, is different from above-described embodiment embodiment of the present invention pair
CRC computing modules have done further restriction and explanation in above-described embodiment, and other guide is roughly the same with above-described embodiment, tool
Hold in vivo and may be referred to above-described embodiment, here is omitted.Specifically, CRC computing modules are stated and are provided with break-make point, for basis
The rule of combination disconnects or connected the exchange network, so as to be connected between the target CRC computing modules.
Specifically, with reference to figure 2, for setting corresponding break-make point 104 on each CRC computing modules respectively, so that each
Can UNICOM or disconnection as desired between module.
For ease of description, module is used below and replaces CRC computing modules.In embodiments of the present invention, provided with 5 moulds
Block, respectively module 1 to module 5, input switch 101 can be connected from different modules respectively, the network between modules
UNICOM or disconnection can also be controlled by break-make point.
The embodiment of the present invention is by taking five modules as an example, wherein it is 8bit/ that the degree of parallelism of five modules, which is module 1 respectively,
1byte, module 2 are 16bit/2bytes, module 3 is 32bit/4bytes, module 4 is 64bit/8bytes, module 5 is
128bit/16bytes.For different input values, the selection mode of break-make point can be as shown in table 2, first input in table 2
The bit bit wides of value are 248bit, thus may determine that rule of combination is module 1+ module 2+ module 3+ module 3+ module 4+ modules
5, configuration input switch 101 is connected with module 1 utilizes break-make point 1,5,8,10 by the exchange network UNICOM of five intermodules, realization
The transmission of data, the CRC check of each module exports is connected to other modules or output switch by exchange network,
In the embodiment of the present invention, final result is exported final calculation result by the UNICOM's output switch 103 of module 5.Other two in table 2
The rule of combination of kind module is roughly the same with the embodiment of the present invention, specifically can be cross-referenced with the embodiment of the present invention, herein not
Repeat again, in addition, the embodiment of the present invention is not limited to 3 kinds of rules of combination and corresponding break-make point and UNICOM's mode in table 2,
It can be configured accordingly depending on concrete condition.
Table 2
| The module turned on input switch | Break-make point | The module turned on output switch | Input value degree of parallelism |
| Module 1 | 1,5,8,10 | Module 5 | 248bits |
| Module 1 | 4 | Module 5 | 136bits |
| Module 2 | 5,8 | Module 4 | 112bits |
The embodiment of the present invention provides a kind of specific CRC computing devices, the addition processing mould on the basis of above-described embodiment
Block, handle for disconnecting according to the rule of combination or connecting the exchange network, so that between the target CRC computing modules
It is connected.
Specifically, corresponding UNICOM and utilization are carried out to CRC computing modules in CRC computing modules group 102 for convenience,
The embodiment of the present invention adds processing module in CRC computing devices, is completed by processing module to input switch in computing module
101st, CRC computing modules 102, the automatic configuration of output switch 103.
Below to a kind of CRC computational methods provided in an embodiment of the present invention, a kind of CRC computational methods described below with it is upper
A kind of CRC computing devices of text description can be with cross-referenced.
With reference to figure 3, a kind of CRC computational methods provided in an embodiment of the present invention, specifically include：
S201, input initial input value；
Specifically, it is provided with input switch in CRC computing devices, input switch inputs initial input value, it is necessary to explanation
It is that input switch can once input one or more initial input values, is calculated by CRC computing module groups, as long as ensures
Initial input value or initial input value sum are not more than the maximum parallelism degree of CRC computing module groups, that is, are calculated no more than CRC
The degree of parallelism sum of each CRC computing modules in module group.
S202, using determining that corresponding with rule of combination target CRC computing modules calculate institute according to rule of combination
State the result of calculation of initial input value；Wherein described rule of combination is according to initial input value determined combination rule；
Specifically, determine which CRC processing module is initial input value first transfer to calculated according to rule of combination；This
Outside, equally have between each CRC processing module and be connected for transmitting the exchange network of data, conducting situation is according to rule of combination
It is determined that is, determined to calculate initial input value jointly by that several CRC computing module according to rule of combination.Need what is illustrated
It is that rule of combination then determines according to initial input value, each CRC computing module in CRC computing module groups is opened with input
Close and be connected, and specific line between which CRC computing module and input switch turns on, and can be determined by rule of combination.
S203, export the result of calculation.
Specifically, for output switch by final result of calculation output, it is necessary to illustrate, output switch calculates mould with CRC
Block group is connected, and wherein output switch is connected with each CRC computing module, and conducting situation is determined by rule of combination, in addition, output
Switch can be connected with a CRC computing module, can also be connected with multiple CRC computing modules, and concrete condition regards input value
Depending on number, when needing multiple initial input values to be calculated simultaneously, multiple data flows are had, then according to progress CRC calculating
The number of data flow determines.Turned between output switch and the module finally calculated, final result is exported.
As can be seen here, multiple CRC computing modules are formed into CRC computing module groups in this programme, according to input value bit
Different CRC computing modules are combined by width/byte wide, can tear script bit bit wide/larger input value of byte wide open
Bit bit wide/less input value of byte wide is divide into, reduces the classification of look-up table, so as to improve CRC computing module groups
The maximum clock frequency of steady operation on FPGA.Simultaneously as in the embodiment of the present invention CRC computing devices include it is multiple
CRC computing modules, multiple combinations can be carried out between module, therefore for same CRC computing devices, the bit of its input value
Width/byte wide can also be selected flexibly.
Below to a kind of specific CRC computational methods provided in an embodiment of the present invention, above-described embodiment is different from, the present invention
Embodiment has done further restriction and explanation to S202 in above-described embodiment, other step contents and above-described embodiment substantially phase
Together, it specifically may be referred to above-described embodiment.Specifically, S202 includes：
It is used to calculate using in the target CRC computing modules corresponding with the rule of combination determined according to rule of combination
The look-up table or combinational logic circuit of CRC results calculate the result of calculation of initial input value.
Specifically, for each module in CRC computing module groups different implementations can be used, such as can be with
Realized by look-up tables'implementation or the parallel combined logic circuit, do not limited here.
The embodiment of the present invention provides a kind of specific CRC computational methods, is different from above-described embodiment, the embodiment of the present invention pair
S202 has done further restriction and explanation in above-described embodiment, and other step contents are roughly the same with above-described embodiment, specifically
Content may be referred to above-described embodiment, and here is omitted.Specifically, S202 includes：
Counted using according to rule of combination with the target CRC corresponding with the rule of combination that the break-make mode of break-make point determines
Calculate the result of calculation that module calculates initial input value.
Specifically, for setting corresponding break-make point on each CRC computing modules respectively so that can be between modules
UNICOM or disconnection as desired, can be with the exchange network between CRC computing modules corresponding to UNICOM, so that phase by break-make point
The CRC computing modules of UNICOM calculate initial input value jointly.
The embodiment of the present invention provides a kind of specific CRC computational methods, and based on above-described embodiment, the embodiment of the present invention provides
A kind of specific CRC computational methods, in addition to：
The switching network between the target CRC computing modules determined according to the rule of combination is controlled using processing module
Network is connected or disconnected.
Specifically, corresponding UNICOM and utilization are carried out to CRC computing modules in CRC computing module groups for convenience, this
The automation completed in inventive embodiments by processing module to input switch, CRC computing modules, output switch in computing module is matched somebody with somebody
Put.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (8)
- A kind of 1. CRC computing devices, it is characterised in that including：Input switch, for initial input value to be inputted to CRC computing module groups；The CRC computing modules group being connected with the input switch, the CRC computing modules group include multiple passing through exchange The connected CRC computing modules of network；The CRC computing modules group is used to combine rule with described using what is determined according to rule of combination Then corresponding target CRC computing modules calculate the result of calculation of initial input value；Wherein, the rule of combination is according to initial defeated Enter to be worth determined combination rule；The output switch being connected with the CRC computing modules group, for exporting the final calculation result of the initial input value.
- 2. computing device according to claim 1, it is characterised in that the CRC computing modules, which are provided with, to be used to calculate CRC knots The look-up table or combinational logic circuit of fruit.
- 3. computing device according to claim 1, it is characterised in that the CRC computing modules are provided with break-make point, described logical Breakpoint is used to disconnect according to the rule of combination or connect the exchange network, so that phase between the target CRC computing modules Even.
- 4. computing device as claimed in any of claims 1 to 3, it is characterised in that also include：Processing module, for controlled according to the rule of combination exchange network connection between the target CRC computing modules or Disconnect.
- A kind of 5. CRC computational methods, it is characterised in that including：Input initial input value；Using determining that corresponding with rule of combination target CRC computing modules calculate the initial input according to rule of combination The result of calculation of value；Wherein described rule of combination is according to initial input value determined combination rule；Export the result of calculation.
- 6. according to the method for claim 5, it is characterised in that described using according to rule of combination determination and the combination Target CRC computing modules corresponding to rule calculate the result of calculation of the initial input value, including：Using in the target CRC computing modules corresponding with the rule of combination determined according to rule of combination be used for calculate CRC As a result look-up table or combinational logic circuit calculates the result of calculation of initial input value.
- 7. according to the method for claim 5, it is characterised in that described using according to rule of combination determination and the combination Target CRC computing modules corresponding to rule calculate the result of calculation of the initial input value, including：Using according to rule of combination mould is calculated with the target CRC corresponding with the rule of combination that the break-make mode of break-make point determines Block calculates the result of calculation of initial input value.
- 8. the method according to any one in claim 5 to 7, it is characterised in that also include：Exchange network between the target CRC computing modules determined using processing module control according to the rule of combination is connected On-off is opened.
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| CN108337069A (en) * | 2018-01-19 | 2018-07-27 | 国网辽宁省电力有限公司 | It is a kind of it is improved reduce the bit error rate end be grouped CRC check system parallel |
| CN111247516A (en) * | 2019-03-11 | 2020-06-05 | 深圳市大疆创新科技有限公司 | Circuit structure, system-on-chip (SoC) and data processing method |
| CN111897674A (en) * | 2020-08-07 | 2020-11-06 | 上海富瀚微电子股份有限公司 | Cyclic redundancy check circuit IP (Internet protocol) check verification system and method |
| CN115549854A (en) * | 2021-06-30 | 2022-12-30 | 上海寒武纪信息科技有限公司 | Cyclic redundancy check method, cyclic redundancy check device, storage medium and electronic device |
| CN115987460A (en) * | 2023-03-21 | 2023-04-18 | 深圳华锐分布式技术股份有限公司 | Data transmission method, device, equipment and medium based on check code |
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