CN106933759B - A kind of interruption communication means based on CPCI backboard - Google Patents
A kind of interruption communication means based on CPCI backboard Download PDFInfo
- Publication number
- CN106933759B CN106933759B CN201511020711.6A CN201511020711A CN106933759B CN 106933759 B CN106933759 B CN 106933759B CN 201511020711 A CN201511020711 A CN 201511020711A CN 106933759 B CN106933759 B CN 106933759B
- Authority
- CN
- China
- Prior art keywords
- data
- communication
- unit
- storage unit
- communication unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
- G06F13/24—Handling requests for interconnection or transfer for access to input/output bus using interrupt
-
- 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
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI 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
- G06F2213/0024—Peripheral component interconnect [PCI]
-
- 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
- G06F2213/24—Interrupt
- G06F2213/2414—Routing of interrupt among interrupt handlers in processor system or interrupt controller
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
The invention discloses a kind of interruption communication means based on CPCI backboard, belong to vehicle communication technical field, solve traditional interrupt mode communication means and are easy to happen data transmission fault and confusion, the lower technical problem of reliability and stability.This method comprises: the first communication data is written into the first storage unit after the data in the first storage unit are read for the first communication unit, first communication data includes: data information and reading data indication information, or first communication unit the first communication data is written into the first storage unit after the data in the first and second storage units are read, the first communication data includes: writing data indication information；The reading data indication information is read from the first storage unit by interruption the second communication unit of instruction or writes data indication information；Second communication unit reads data information according to data indication information is read from the first storage unit, or writes data into the second storage unit according to data indication information is write.
Description
Technical field
The present invention relates to vehicle communication technical fields, specifically, are related to a kind of interruption communication party based on CPCI backboard
Method.
Background technique
With the development of train high speed, safe and comfortableization, more and more status informations, control information and diagnosis
The needs such as information mutually transmit between rolling stock, between each electrical equipment.Due to Train Communication Network (Train
Communication Network, TCN) medium control mode, communication service and in terms of suffer from it is unique excellent
Point, therefore be widely used.In relevant application item, the veneers such as MVB plate, WTB plate, I O board, logout plate
The information of collection all passes through the CPCI core bus in cabinet and interacts with the realization of CPU master control borad, and CPU master control borad is cpci bus
Main equipment, other veneers are from equipment.
In the general cpci bus communication pattern based on interruption, CPU master control borad and from plate CPU all to a piece of twoport
RAM is written and read, i.e., when CPU master control borad sends data, is write data into dual port RAM by CPCI core bus,
Then data are read from plate CPU using interrupt notification.In turn, it can also be write data into from plate CPU by local bus same
In piece dual port RAM, data are then read using interrupt notification CPU master control borad.The drawbacks of handling in this way is: CPU master control is occurring
Plate and from plate CPU be in one write dual port RAM and another in the state of reading dual port RAM or CPU master control borad and from plate
CPU is simultaneously in the state of writing dual port RAM, it may appear that data read errors and data collision cause the wrong and mixed of data
Disorderly, so that the reliability of communication system is lower.
Therefore, need a kind of mistake and confusion that can prevent data from transmitting, improve reliability of communication system based on
The interruption communication means of CPCI backboard.
Summary of the invention
The purpose of the present invention is to provide a kind of interruption communication means based on CPCI backboard, with traditional interruption of solution
Multimodal communication method is easy to happen data transmission fault and confusion, the lower technical problem of reliability and stability.
The present invention provides a kind of interruption communication means based on CPCI backboard, this method comprises:
Into the first storage unit, write-in first is logical after the data in the first storage unit are read for first communication unit
First communication data of letter data, write-in includes: data information and reading data indication information or the first communication unit are at first
The first communication data, the first communication number of write-in is written in data in second storage unit into the first storage unit after being read
According to including: to write data indication information；
It interrupts control unit and indicates that the second communication unit reads the reading data from the first storage unit and refers to by interrupting
Show information or writes data indication information；
Second communication unit reads the data information according to data indication information is read from the first storage unit, or according to
It writes data indication information and the second storage unit is written into the second communication data；
It interrupts control unit and reads the second communication data from the second storage unit by interrupting the first communication unit of instruction.
The reading data indication information and the data head that data indication information is recorded in first communication data is write, in institute
The second communication unit is stated from the step of reading the reading data indication information in the first storage unit or write data indication information
Include:
Second communication unit reads the data head of the first communication data from the first storage unit；
Second communication unit judges the type of the instruction information recorded in the data head.
Include: in the step of the first communication data is written into the first storage unit in first communication unit
First communication unit reads empty full buffer status, when the empty full buffer status is empty, to the first storage
The first communication data is written in unit；
After the data writing is finished, the full buffer status of sky is set to full by the first communication unit；
It include: second logical from the step of reading the data information in the first storage unit in second communication unit
After believing that unit reads the data information, the full buffer status of sky is set to sky；
It include: the second communication in the step of the second storage unit is written in the second communication data by second communication unit
After the second communication data is written in unit, the full buffer status of sky is set to sky.
The reading data are read from the first storage unit by interrupting the second communication unit of instruction interrupting control unit
Include: in the step of indicating information or writing data indication information
It interrupts control unit and is used to indicate the second communication unit to the progress of the first storage unit to the transmission of the second communication unit
Read the first interrupt signal of data manipulation；
Second communication unit read from the first storage unit according to the first interrupt signal the reading data indication information or
Write data indication information.
Indicate that the first communication unit reads second from the second storage unit and leads to by interrupting in the interruption control unit
Include: in the step of letter data
It interrupts control unit and is used to indicate the first communication unit to the progress of the second storage unit to the transmission of the first communication unit
Read the second interrupt signal of data manipulation；
First communication unit reads second communication data according to the second interrupt signal from the second storage unit.
The reading data are read from the first storage unit by interrupting the second communication unit of instruction interrupting control unit
Include: in the step of indicating information or writing data indication information
Second communication unit after reading the reading data indication information in the first storage unit or writing data indication information,
Remove the first interrupt signal.
Indicate that the first communication unit reads second from the second storage unit and leads to by interrupting in the interruption control unit
Include: in the step of letter data
First communication unit removes the second interrupt signal after reading second communication data in the second storage unit.
On the one hand two-way interruption communication is divided into two channel difference by interruption communication means provided in an embodiment of the present invention
It carries out, avoids communicating pair in traditional interruption communication mode based on CPCI backboard and operated all in same caching
The case where occur, and then the case where avoid data corruption caused by this kind of situation, ensure that the correctness of communication.Another party
Face, the transmission interaction of You Yifang active management data, the demand of another party response management side carry out corresponding operation, make all
Read-write operation is an orderly process, avoids on the same data direction multiple interrupt signals while generating and causing
Error in data and both sides cause data manipulation to be forced the case where terminating when carrying out data manipulation due to interruption that other side gives
Occur, to ensure that the correct of communication.
Other features and advantages of the present invention will be illustrated in the following description, also, partial becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
It, below will be to required in embodiment description for the clearer technical solution illustrated in the embodiment of the present invention
Attached drawing does simple introduction:
Fig. 1 is the flow diagram provided in an embodiment of the present invention for interrupting communication means；
Fig. 2 is the embodiment schematic diagram provided in an embodiment of the present invention for interrupting communication means；
Fig. 3 is the applicating flow chart provided in an embodiment of the present invention for interrupting communication means；
Fig. 4 is the application schematic diagram provided in an embodiment of the present invention for interrupting communication means.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
The embodiment of the present invention provides a kind of interruption communication means based on CPCI backboard, as shown in Figure 1, this method comprises:
Step 101, step 102, step 103 and step 104.In a step 101, number of first communication unit in the first storage unit
According to being written the first communication data after being read into the first storage unit, the first communication data i.e. the first communication unit to be transmitted to
The data of second communication unit include in the first communication data of write-in: data information and reading data indication information, wherein
It reads data indication information and is used for the instruction the in the data transmission for needing to carry out the first communication unit to the second communication unit direction
Two communication units carry out reading data manipulation to the first communication data that the first communication unit is written in the first storage unit, thus
The first communication unit is completed to transmit to the data of the second communication unit.Or first communication unit in the first and second storage units
Data be read after the first communication data is written into the first storage unit, the first communication data of write-in includes: writing data
It indicates information, writes data indication information in the data transmission for needing to carry out the second communication unit to the first communication unit direction
When, the second communication unit of instruction carries out the write operation of the second communication data, the second communication data i.e. the to the second storage unit
Two communication units are to be transmitted to the data of the first communication unit, so that in the steps afterwards, the first communication unit can be with
The second communication data is read from the second storage unit, realizes that the data of the second communication unit to the first communication unit direction pass
It is defeated.
Into the first storage unit be written data be carried out after the data in the first storage unit are read, that is,
Data in the first storage unit of last time write-in have been read, even if the number that the data covering of this write-in in this way is last
According to that will not be had an impact to communication process, likewise, the data write-in of the second storage unit is also such.
In a step 102, it interrupts control unit and is read from the first storage unit by interrupting the second communication unit of instruction
It reads data indication information or writes data indication information.More specifically, in this step, it is logical first that control unit is interrupted first
After believing that unit completes the data transmission for the first storage unit, the second communication unit is used to indicate to the transmission of the second communication unit
Read to the first storage unit the first interrupt signal of data manipulation.Then, the second communication unit is believed according to first interruption
Data indication information is read number from the first storage unit or writes data indication information.It is stored in the second communication unit from first
After reading the reading data indication information in unit or writing data indication information, the second communication unit removes the first interrupt signal.
In step 103, the second communication unit reads the number according to data indication information is read from the first storage unit
It is believed that breath, or the second storage unit is written into the second communication data according to data indication information is write.It is needing to carry out the first communication
Unit to the second communication unit direction data transmission when, the first communication unit be written into the first storage unit first communication
Include in data: data information and reading data indication information, data information need to be transferred to the effective of the second communication unit
Data.In the data transmission for needing to carry out the second communication unit to the first communication unit direction, include in the first communication data
Have: writing data indication information.
Further, it reads data indication information and writes the data that data indication information is recorded in first communication data
Head, if the first communication unit needs to send data to the second communication unit, record has reading in the first communication data data head
According to instruction information, effective data information is carried after the first communication data data head.If the first communication unit is needed from second
Data are read in communication unit, then record writes data indication information, the first communication data number in the first communication data data head
According to effective data information is not carried after head.
Specifically, in step 103, firstly, being read from the first storage unit according to the second communication unit of interruptive command
The data head of the first communication data is taken, then the second communication unit judges the type of the instruction information recorded in data head, that is, sentences
Severed finger shows that information is to read data indication information or to write data indication information, if data indication information is read, then the second communication unit
Member, which executes, reads data manipulation, and if data indication information is write, then the second communication unit executes data writing operation.
At step 104, it interrupts control unit and is read from the second storage unit by interrupting the first communication unit of instruction
Second communication data.More specifically, in this step, control unit is interrupted first to be used to indicate to the transmission of the first communication unit
First communication unit read to the second storage unit the second interrupt signal of data manipulation, is then believed according to second interruption
Number, the first communication unit reads the second communication data from the second storage unit, and removes second after the completion of reading and interrupt letter
Number.
On the one hand two-way interruption communication is divided into two channel difference by interruption communication means provided in an embodiment of the present invention
It carries out, for the first storage unit, the first communication unit, which can only be write, to be read, and the second communication unit can only be read write；For
Second storage unit, the first communication unit can only be read write, and the second communication unit, which can only be write, to be read.Avoiding problems tradition
The interruption communication mode based on CPCI backboard in communicating pair all in being operated to same caching the case where, in turn
The case where avoiding data corruption caused by this kind of situation ensure that the correctness of communication.
On the other hand, the control of the first communication unit by sending reading data indication information to the second communication unit or writes data
Information is indicated to control the read-write operation of the second communication unit, i.e., is interacted by the transmission of the first communication unit active management data,
The demand that second communication unit responds the first communication unit carries out corresponding operation, after the first communication unit writes data, the
Two communication units just will receive reading data indication information, and then go to read data, and the first communication unit is once read on we
After the completion of data manipulation, i.e. after data in the second storage unit are read by the first communication unit, the second communication unit of Cai Huixiang
Data indication information is write in transmission, and after the second communication unit writes data, can just write according to the second communication unit of reading is interrupted
The data entered, in this way management can make all read-write operations be an orderly process, avoid in the same data direction
Upper multiple interrupt signals generate simultaneously and during the error in data caused and both sides are given when carrying out data manipulation due to other side
Break and data manipulation is caused to be forced the case where terminating, to ensure that the correct of communication.
Further, the detailed process of the interruption communication means provided in an embodiment of the present invention based on CPCI backboard, such as
Shown in Fig. 3, comprising: step 201, the first communication unit first reads the state of empty full register, judge empty full register whether be
Sky, if the state of empty full register be full, repeatedly step 201 over time, if the state of empty full register be it is empty, hold
Row step 202.In this step, indicate whether data in the first storage unit are read by the state of empty full register
State, the data of deposit indicate full state by empty full register if not being read, avoid the write-in again of data, if by
It reads, then it represents that dummy status can carry out to the write-in of designation date.In step 202, the first communication unit writes data
Enter in the first storage unit.In step 203, the full register of sky is set to full shape after writing data by the first communication unit
State.In step 204, it interrupts control unit and generates interruption to the second communication unit, its is notified to read data.In step 205,
The response of second communication unit is interrupted, and instruction information is read, and judges to indicate information type, that is, judges that the first communication unit is to require the
Two communication units read corresponding data and corresponding data are still written for the reading of the first communication unit, if the first communication unit is
It is required that the second communication unit reads data, 206 are thened follow the steps, if the first communication unit is to require to read the second communication unit hair
The data sent, then follow the steps 208.In step 206, the second communication unit reads the data of the first storage unit.In step
It in 207, after the second communication unit runs through data, removes and interrupts, and the full register of sky is set to dummy status.In a step 208,
Second communication unit writes data into the second storage unit.In step 209, it after the second communication unit writes data, removes
It interrupts, the full register of sky is set to dummy status.In step 210, it interrupts control unit and generates the first communication unit of interrupt notification
Read data.In step 211, the first communication unit interrupts instruction and reads the second memory cell data.In the step 212,
After one communication unit reads data, removes and interrupt.
Below binding close specific embodiment, to the interruption communication means provided by the invention based on CPCI backboard do into
One step detailed description.By method provided by the invention be applied to locomotive in function from plate by CPCI core bus with
CPU master control borad carries out in the communication pattern of data interaction, as shown in Fig. 2, the function of the first communication unit can be by CPU master control borad
Realize, the function of the second communication unit can by being realized from plate CPU, the first, second storage unit and interrupt control unit and
The function of the full register of sky can be by realizing from the fpga chip of plate.
All kinds of from plate, the CPCI backplane communication with CPU master control borad is realized by PCI IP kernel, then to communication data
Data storage is carried out, and by communicating, PCI IP kernel from plate local bus with from plate CPU (or other intermediate process modules)
Function be to realize the timing of various pci bus orders.In the FPGA of veneer, the first, second storage unit generally uses FPGA
FIFO or dual port RAM in piece are realized, can also use dedicated cache chip.
As shown in figure 4, in one embodiment of the invention, binary channels caching passes through dual port RAM A and RAM in FPGA
B realizes that interrupting control unit function can be realized by interrupt control register in FPGA, and the present invention is in order to improve the correct of communication
Property and reliability, solve due to CPU master control borad with operate dual port RAM simultaneously from plate CPU and occur can after multiple interrupt signals
The problem of data collision and confusion can be brought and lead to communication failure, change a piece of dual port RAM into two panels dual port RAM, i.e., one
A channel becomes two channels, and such as in dual port RAM A, CPU master control borad, which can only be write, to be read, and can only read write from plate CPU；
In dual port RAM B, CPU master control borad can only be read write, and can only write from plate CPU cannot read.Avoiding problems both sides all in
The case where to write operation is carried out with a piece of dual port RAM.
Secondly, when CPU master control borad needs to write data, first reading empty full register in interrupt operation, judging its state
(default conditions are sky), if it is dummy status, then can write data into dual port RAM A, by empty Man Jicun after writing
Device is set to full state, then reads data from plate CPU by reading data indication information notice, will after running through data from plate CPU
The full register of sky is set to dummy status, while removing interruption.CPU master control borad reads empty full register, is found to be after sky, and can be with
After continuing data.It thus avoids the occurrence of from plate CPU when reading data, CPU master control borad initiates new data writing operation, produces simultaneously
Raw new interruption is given from plate CPU.
In another data path, in such a way that CPU master control borad actively reads data, i.e., CPU master control borad needs to read
According to when, first generate and write data indication information instruction and enter to need the corresponding data that reads from plate CPU write, after interrupting from plate CPU response,
Required data are written in dual port RAM B, interrupt notification CPU master control borad is then generated and reads data, CPU master control borad is run through
After data, removes and interrupt.Avoid in this way CPU master control borad and from plate CPU be in one reading dual port RAM and another just
In the state for writing dual port RAM.Data are read by CPU master control borad activly request, passively send data to CPU master from plate CPU
Control plate, avoid the occurrence of CPU master control borad mentioned above (or from plate CPU) write data backward from plate CPU (or CPU master control borad) produce
The case where life is interrupted and has upset data corruption caused by operation of the other side to dual port RAM, to ensure that the correct of communication
Property.
The above measure is the generation of effective management interrupt signal under the communication pattern based on interruption, and to double
The anti-collision processing of the read-write operation of mouth RAM guarantees the accuracy of CPCI backplane communication to prevent the mistake and confusion of data.
On the one hand two-way interruption communication is divided into two channel difference by interruption communication means provided in an embodiment of the present invention
It carries out, avoids communicating pair in traditional interruption communication mode based on CPCI backboard and operated all in same caching
The case where occur, and then the case where avoid data corruption caused by this kind of situation, ensure that the correctness of communication.Another party
Face, the transmission interaction of You Yifang active management data, the demand of another party response management side carry out corresponding operation, make all
Read-write operation is an orderly process, avoids on the same data direction multiple interrupt signals while generating and causing
Error in data and both sides cause data manipulation to be forced the case where terminating when carrying out data manipulation due to interruption that other side gives
Occur, to ensure that the correct of communication.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (7)
1. a kind of interruption communication means based on CPCI backboard characterized by comprising
First communication unit the first communication of write-in number into the first storage unit after the data in the first storage unit are read
According to the first communication data of write-in includes: data information and reading data indication information or the first communication unit are first and second
The first communication data, the first communication data packet of write-in is written in data in storage unit into the first storage unit after being read
It includes: writing data indication information；
It interrupts control unit and reads the reading data instruction letter from the first storage unit by interrupting the second communication unit of instruction
Cease or write data indication information；
Second communication unit reads the data information according to data indication information is read from the first storage unit, or according to writing number
The second storage unit is written into the second communication data according to instruction information；
It interrupts control unit and reads the second communication data from the second storage unit by interrupting the first communication unit of instruction.
2. the interruption communication means according to claim 1 based on CPCI backboard, which is characterized in that the reading data instruction
Information and the data head that data indication information is recorded in first communication data is write, is deposited in second communication unit from first
Include: in the step of reading the reading data indication information in storage unit or writing data indication information
Second communication unit reads the data head of the first communication data from the first storage unit；
Second communication unit judges the type of the instruction information recorded in the data head.
3. the interruption communication means according to claim 2 based on CPCI backboard, which is characterized in that in first communication
Include: in the step of the first communication data is written into the first storage unit in unit
First communication unit reads empty full buffer status, when the empty full buffer status is empty, to the first storage unit
The first communication data of middle write-in；
After the data writing is finished, the full buffer status of sky is set to full by the first communication unit；
It include: the second communication unit from the step of reading the data information in the first storage unit in second communication unit
After member reads the data information, the full buffer status of sky is set to sky；
It include: the second communication unit in the step of the second storage unit is written in the second communication data by second communication unit
After the second communication data is written, the full buffer status of sky is set to sky.
4. the interruption communication means according to any one of claims 1 to 3 based on CPCI backboard, which is characterized in that in
Disconnected control unit reads the reading data indication information or is write from the first storage unit by interrupting the second communication unit of instruction
Include: in the step of data indication information
Interruption control unit is used to indicate the second communication unit to the transmission of the second communication unit and reads to the first storage unit
According to the first interrupt signal of operation；
Second communication unit reads the reading data indication information from the first storage unit according to the first interrupt signal or writes number
According to instruction information.
5. the interruption communication means according to claim 4 based on CPCI backboard, which is characterized in that controlled in the interruption
Unit indicates that the first communication unit includes: from the step of reading the second communication data in the second storage unit by interrupting
Interruption control unit is used to indicate the first communication unit to the transmission of the first communication unit and reads to the second storage unit
According to the second interrupt signal of operation；
First communication unit reads second communication data according to the second interrupt signal from the second storage unit.
6. the interruption communication means according to claim 4 based on CPCI backboard, which is characterized in that interrupting control unit
Believed by interrupting the second communication unit of instruction and reading the reading data indication information from the first storage unit or write data instruction
Include: in the step of breath
Second communication unit is removed after reading the reading data indication information in the first storage unit or writing data indication information
First interrupt signal.
7. the interruption communication means according to claim 5 based on CPCI backboard, which is characterized in that controlled in the interruption
Unit indicates that the first communication unit includes: from the step of reading the second communication data in the second storage unit by interrupting
First communication unit removes the second interrupt signal after reading second communication data in the second storage unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020711.6A CN106933759B (en) | 2015-12-30 | 2015-12-30 | A kind of interruption communication means based on CPCI backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020711.6A CN106933759B (en) | 2015-12-30 | 2015-12-30 | A kind of interruption communication means based on CPCI backboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106933759A CN106933759A (en) | 2017-07-07 |
| CN106933759B true CN106933759B (en) | 2019-11-15 |
Family
ID=59441616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511020711.6A Active CN106933759B (en) | 2015-12-30 | 2015-12-30 | A kind of interruption communication means based on CPCI backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106933759B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261236A (en) * | 1999-01-19 | 2000-07-26 | 深圳市中兴通讯股份有限公司 | Method for transferring messages with dual control words |
| CN101655824A (en) * | 2009-08-25 | 2010-02-24 | 北京广利核系统工程有限公司 | Implementation method of double-port RAM mutual exclusion access |
-
2015
- 2015-12-30 CN CN201511020711.6A patent/CN106933759B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261236A (en) * | 1999-01-19 | 2000-07-26 | 深圳市中兴通讯股份有限公司 | Method for transferring messages with dual control words |
| CN101655824A (en) * | 2009-08-25 | 2010-02-24 | 北京广利核系统工程有限公司 | Implementation method of double-port RAM mutual exclusion access |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106933759A (en) | 2017-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140068134A1 (en) | Data transmission apparatus, system, and method | |
| CN105376129B (en) | One kind 1394 bus transaction layers-link layer data packet transmission circuit and method | |
| CN105612498B (en) | Method, virtual machine memory data processing method, server and the dummy machine system of live migration of virtual machine | |
| CN101162444A (en) | Method and for processing system input/output processing | |
| US7817654B2 (en) | Test device and a test method | |
| CN201626437U (en) | Multifunction vehicle bus controller and multifunction vehicle bus network card | |
| CN103200130B (en) | The method and device that in a kind of LEU, the safety of message stores and selects | |
| CN106293520B (en) | A kind of processing method of I/O request | |
| CN103685578B (en) | The data transmission method of master-slave equipment | |
| JPS6262695A (en) | Method and apparatus for transmitting data signal | |
| CN101751230B (en) | Equipment and method for calibrating time stamp of I/O (input/output) data | |
| CN106933759B (en) | A kind of interruption communication means based on CPCI backboard | |
| CN103995789B (en) | A kind of direct memory access realizes system and method | |
| CN102937941B (en) | Method and system for reversely determining 1553B bus data storage law | |
| CN103885844B (en) | The dual port RAM data high-speed safety interacting method of based role conversion and device | |
| CN105117353B (en) | FPGA with conventional data interactive module and the information processing system using the FPGA | |
| CN105550089B (en) | A kind of FC network frame head error in data method for implanting based on digital circuit | |
| CN101727375B (en) | System and method for testing new-generation peripheral component interconnect express | |
| US8799548B2 (en) | I/O bridge device, response-reporting method, and program | |
| CN107463475A (en) | A kind of method of chip and acquisition chip tune-up data | |
| CN105573932B (en) | A kind of more bit wide data cross clock domain access methods based on register | |
| CN108616591A (en) | A kind of interface equipment and method for carrying out data exchange | |
| CN106933755B (en) | Polling communication method based on CPCI back panel | |
| US20130067130A1 (en) | Bus control apparatus and bus control method | |
| CN104243197B (en) | Data transmission method, system and virtual memory gateway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |