CN106598888B - A kind of more board communication systems and method using RS485 agreement - Google Patents
A kind of more board communication systems and method using RS485 agreement Download PDFInfo
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- CN106598888B CN106598888B CN201611198728.5A CN201611198728A CN106598888B CN 106598888 B CN106598888 B CN 106598888B CN 201611198728 A CN201611198728 A CN 201611198728A CN 106598888 B CN106598888 B CN 106598888B
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- 238000004891 communication Methods 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title abstract description 14
- 239000011159 matrix material Substances 0.000 claims description 56
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 2
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- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/16—Handling requests for interconnection or transfer for access to memory bus
- G06F13/1605—Handling requests for interconnection or transfer for access to memory bus based on arbitration
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- 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
- G06F2213/0002—Serial port, e.g. RS232C
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Abstract
The embodiment of the invention discloses a kind of more board communication systems and method using RS485 agreement, the operating mode of the embodiment of the present invention is mainly from master control borad or since being initiated as the communication of control plate, order of priority from control plate according to the slot number where itself from low to high, the application order of arbitration bus is applied according to order from low to high, by being communicated between multiple groups RS485 and more boards, to improve communication efficiency.
Description
Technical field
The present invention relates to graphics hardware field of processors more particularly to a kind of more boards using RS485 agreement to communicate system
System and method.
Background technique
Passive backplane formula graphics hardware processor system, has the complication system of multiple slot positions, a variety of board types.Master control
Communication uses RS485 agreement between plate and other veneers, and 1 hair 32 receipts can be designed according to the agreement of RS485, in bus.In order to
It improves mostly from the processor system communication speed of plate, it can be by the way of packet communications.It can only be in 1 tunnel bus of synchronization
One communicates from plate, then should enable that this is waited just to can be carried out after plate communication from other veneers of the grouping where plate competing
Strive communication.
The communication of each board is simultaneously non-temporal isometric, at equal intervals, therefore simultaneously for its efficiency of the communication modes of average packet formula
It is non-optimal.
Therefore it provides a kind of multiple groups RS485 is communicated with more boards, it is this with the system and method for improving communication efficiency
Field technical staff's technical issues that need to address.
Summary of the invention
The embodiment of the invention provides a kind of more board communication systems and method using RS485 agreement, pass through multiple groups
It is communicated between RS485 and more boards, to improve communication efficiency.
The embodiment of the invention provides a kind of more board communication systems using RS485 agreement, comprising:
Master control borad, M are a from control plate and communication switching matrix module；
The master control borad is connect with the communication switching matrix module by N+1 RS485 bus；
Pass through RS485 connection from control plate and the communication switching matrix module described in each；
Also pass through N+1 arbitration bus with the communication switching matrix module from control plate described in each to connect；
Wherein, M=1,2,3 ... .n, N=1,2,3 ... .n, M < 32N；
The communication switching matrix module is used to judge at least to lead to there are two described from control plate application and the master control borad
After news, by the arbitration bus get application communication from control plate slot number, to it is described application communication from control board slot position
Number screened to obtain minimum slot number from control plate；
The communication switching matrix module is also used to judging the minimum slot number from control plate application to arbitration communication right
After limit, the minimum slot number will be distributed to from control plate in idle and minimum route serial number arbitration bus, and dispatch wherein
One RS485 bus is docked with the minimum slot number from the RS485 route of control plate.
Preferably, the communication switching matrix module is also used to judging described in only one from control plate application and the master
After controlling plate communication, get it is described from control application information of the plate to the first arbitration bus, by the first RS485 bus and described from control
The RS485 route of plate is docked.
Preferably, the communication switching matrix module is also used to judging the minimum slot number from control plate application less than secondary
After cutting out communication permission, confirmation have it is described from control plate application and master control borad communication and exist after idle RS485 bus,
By the arbitration bus get application communication from control plate slot number, to it is described application communication from control plate slot number carry out
Screening obtains minimum slot number from control plate.
Preferably, the communication switching matrix module is CPLD device.
Preferably, the master control borad also passes through control bus with the communication switching matrix module and connect.
Preferably, the communication switching matrix module is provided with difference and turns single-ended signal circuit.
Preferably, the master control borad and the communication switching matrix module are connected by N+1 RS485 bus asynchronous communication
It connects；
It is connect from control plate with the communication switching matrix module by RS485 route asynchronous communication described in each.
Preferably, the embodiment of the invention also provides a kind of more board means of communication using RS485 agreement, comprising:
In judgement, at least there are two described after control plate application and master control borad communication, is obtained by the arbitration bus
To application communication from control plate slot number, to the application communication from control plate slot number screened to obtain minimum slot number from
Control plate；
Judging that the minimum slot number, will be in idle and route serial number most after from control plate application to arbitration communication permission
Low arbitration bus distributes to the minimum slot number from control plate, and dispatches one of RS485 bus and the minimum slot position
Number from control plate RS485 route docked.
Preferably, a kind of more board means of communication using RS485 agreement provided in an embodiment of the present invention, further includes:
Judge that only one is described after control plate application and master control borad communication, gets described from control plate to the first arbitration bus
Application information docks the first RS485 bus with the RS485 route from control plate.
Preferably, a kind of more board means of communication using RS485 agreement provided in an embodiment of the present invention, further includes:
After judging that the minimum slot number communicates permission less than arbitration from control plate application, confirmation has described from control plate application and the master control
Plate communication and exist after idle RS485 bus, by the arbitration bus get application communication from control board slot position
Number, screened to obtain minimum slot number from control plate from control plate slot number to the application communication.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The embodiment of the invention provides a kind of more board communication systems and method using RS485 agreement, wherein the use
More board communication systems of RS485 agreement include: master control borad, M from control plate and communication switching matrix module；The master control borad with
The communication switching matrix module passes through N+1 RS485 bus connection；It is each described from control plate and the communication switching matrix mould
Block passes through RS485 connection；Also pass through N+1 arbitration bus from control plate and the communication switching matrix module described in each to connect
It connects；Wherein, M=1,2,3 ... .n, N=1,2,3 ... .n, M < 32N；The communication switching matrix module is used to judge at least
Described in two from control plate application and the master control borad communication after, by the arbitration bus get application communication from control board slot
Minimum slot number is screened to obtain from control plate from control plate slot number to the application communication in position number；The communication switches square
Array module is also used to judging that the minimum slot number, will be in idle and route sequence after from control plate application to arbitration communication permission
Number minimum arbitration bus distributes to the minimum slot number from control plate, and dispatches one of RS485 bus and the minimum
Slot number is docked from the RS485 route of control plate.The operating mode of the embodiment of the present invention mainly from master control borad or from control plate
Communication be initiated as starting, from order of priority of the control plate according to the slot number where itself from low to high, the application of arbitration bus
Order is applied according to order from low to high, by being communicated between multiple groups RS485 and more boards, to improve communication effect
Rate.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of more board communication systems using RS485 agreement provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of more board means of communication using RS485 agreement provided in an embodiment of the present invention；
Fig. 3 is that a kind of application of more board communication systems using RS485 agreement provided in an embodiment of the present invention is real
Illustration is applied to be intended to；
Fig. 4 is the structural schematic diagram for communicating switching matrix module；
Fig. 5 communicates switching matrix inside modules address format schematic diagram.
Specific embodiment
The embodiment of the invention provides a kind of more board communication systems and method using RS485 agreement, pass through multiple groups
It is communicated between RS485 and more boards, to improve communication efficiency.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Referring to Fig. 1, an a kind of reality of more board communication systems using RS485 agreement provided in an embodiment of the present invention
Apply example, comprising:
Master control borad, M are a from control plate and communication switching matrix module；
Master control borad is connect with communication switching matrix module by N+1 RS485 bus；
Each pass through RS485 connection from control plate and communication switching matrix module；
Each also pass through N+1 arbitration bus with communication switching matrix module from control plate to connect；
Wherein, M=1,2,3 ... .n, N=1,2,3 ... .n, M < 32N；
Switching matrix module is communicated to be used to pass through arbitration at least there are two after control plate application and master control borad communication in judgement
Bus get application communication from control plate slot number, to application communication from control plate slot number screened to obtain minimum slot position
Number from control plate；
Communication switching matrix module is also used to after the minimum slot number of judgement communicates permission to arbitration from control plate application, will be located
Minimum slot number is distributed to from control plate in idle and minimum route serial number arbitration bus, and dispatches one of RS485 bus
It is docked with minimum slot number from the RS485 route of control plate.
Communication switching matrix module be also used to judge only one from control plate application and master control borad communicate after, get from
Application information of the plate to the first arbitration bus is controlled, the first RS485 bus is docked with from the RS485 route of control plate.
Communication switching matrix module is also used to after the minimum slot number of judgement communicates permission less than arbitration from control plate application, really
Recognizing has from control plate application and master control borad communication and exists after idle RS485 bus, gets application by arbitration bus
Communication from control plate slot number, screened to obtain minimum slot number from control plate from control plate slot number to application communication.
Communication switching matrix module is CPLD device.
Master control borad also passes through control bus with communication switching matrix module and connect.
Communication switching matrix module is provided with difference and turns single-ended signal circuit.
Master control borad is connect with communication switching matrix module by N+1 RS485 bus asynchronous communication；
Each it is connect from control plate with communication switching matrix module by RS485 route asynchronous communication.
Referring to Fig. 2, an a kind of reality of more board means of communication using RS485 agreement provided in an embodiment of the present invention
Apply example, comprising:
101, judge whether at least there are two being communicated from control plate application and master control borad, if so, 102 are executed, if it is not, executing
103；
Communication switching matrix module judges whether at least there are two communicating from control plate application and master control borad, if so, executing step
Rapid 102, if it is not, executing step 103.
102, by arbitration bus get application communication from control plate slot number, to application communication from control plate slot number
Screened to obtain minimum slot number from control plate；
Communication switching matrix module by arbitration bus get application communication from control plate slot number, to application communicate
Screened to obtain minimum slot number from control plate from control plate slot number.
103, get from control application information of the plate to the first arbitration bus, by the first RS485 bus with from control plate
RS485 route is docked；
Communication switching matrix module is got from control application information of the plate to the first arbitration bus, by the first RS485 bus
It is docked with from the RS485 route of control plate.
104, judge whether minimum slot number is applied communicating permission to arbitration from control plate, if so, 105 are executed, if it is not, holding
Row 106；
Screening obtains minimum slot number after control plate, communication switching matrix module judge minimum slot number from control plate whether Shen
Arbitration communication permission please be arrive, if so, 105 are executed, if it is not, executing 106.
105, minimum slot number will be distributed to from control plate in idle and minimum route serial number arbitration bus, and dispatch it
In a RS485 bus docked with minimum slot number from the RS485 route of control plate；
Communication switching matrix module will be distributed in idle and minimum route serial number arbitration bus minimum slot number from
Plate is controlled, and dispatches one of RS485 bus and is docked with minimum slot number from the RS485 route of control plate.
106, confirmation has from control plate application and master control borad communication and exists after idle RS485 bus, re-executes
102。
Communication switching matrix module confirmation has from control plate application and master control borad communication and exists in idle RS485 bus
Afterwards, 102 are re-execute the steps.
It is the detailed description to a kind of more board means of communication progress using RS485 agreement above, for ease of understanding, under
Face will be illustrated a kind of application of more board means of communication using RS485 agreement with a concrete application scene, please refer to
Fig. 3, application examples include:
It is 40,3 to M, N access value, then from control plate quantity be 40, RS485 bus number be 4 in system, arbitration bus
Respectively DA_1/DA_2/DA_3/DA_4.Every piece has 4 groups of arbitration bus from control plate, can be successively from 4 tunnel buses from control plate
Filing of the award is communicated, incremented by successively to go to apply if occupied according to the label lower priority requisition of number.Such as
4 tunnel bus of fruit is occupied, illustrates that the RS485 bus of system all in communication, that is, needs to wait available free bus.From control
After the arbitration that plate application is arrived, there is communication switching matrix module to be scheduled the communication of wherein coming of S485 bus.
Communication switching matrix module function be to switch over to from the RS485 signal wire of plate with bus, realization to from
The request for arbitration of plate determines and the detection of the RS485 communication bus idle state to CPU (i.e. master control borad).It designs on that module
The difference of RS485 turns single-ended signal circuit, then be converted to the asynchronous communication signal wires of 2 lines from the RS485 of control plate, 40 pieces from plate
Totally 80 road signal.The RS485 bus at this end CPU is equally converted to single-ended signal in communication switching matrix module, shares 8 roads letter
Number.The nucleus module of switching uses CPLD device, has control bus to dock between CPU and CPLD, carries out internal register configuration
With the management of bus free.
In the present embodiment, it realizes mostly from plate, multichannel RS485 bus communication, RS485 bus and arbitration bus number one
It causes.
The operating mode of the embodiment of the present invention mainly since being initiated as the communication of master control borad or veneer, from plate according to from
The application order of the order of priority of slot number from low to high where body, arbitration bus carries out Shen according to order from low to high
Please.
Specifically, referring to Fig. 4, communication switching matrix module is made of 3 parts, part1 is that 40 tunnels input the output of 4 tunnels
Analog channel switching module, part2 be 40 tunnels export 4 tunnels input analog channel switching module, part3 be channel switching post
Storage control module.
Register control module is controlled by higher level ARM, and communication bus is 4 line SPI.The register control of the module is divided into 2
A part, one correspond to part1, secondly corresponding part2.2 parts export 200bit signal wire to part1 and part2 respectively,
Channel therein is controlled.The register address that part3 is written in SPI uses 44bit mode, and part3 is by the numerical value of input
It is compared with original value, the just write-in control module changed, and is changed accordingly shape in the 200bit bus of output
State.Address format is as shown in Figure 5.The numerical value of operation is as shown in table 1.It needs to gate that channel, that is, corresponding numerical value " 1 " is written
To the register at place.
Table 1
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of more board communication systems using RS485 agreement characterized by comprising master control borad, M are a from control plate and logical
Interrogate switching matrix module；
The master control borad is connect with the communication switching matrix module by N+1 RS485 bus；
Pass through RS485 connection from control plate and the communication switching matrix module described in each；
Also pass through N+1 arbitration bus with the communication switching matrix module from control plate described in each to connect；
Wherein, M=1,2,3 ... .n, N=1,2,3 ... .n, M < 32N；
The communication switching matrix module is used in judgement at least there are two described in after control plate application and master control borad communication,
By the arbitration bus get application communication from control plate slot number, to it is described application communication from control plate slot number carry out
Screening obtains minimum slot number from control plate；
The communication switching matrix module is also used to after judging the minimum slot number and communicating permission to arbitration from control plate application,
The minimum slot number will be distributed to from control plate in idle and minimum route serial number arbitration bus, and dispatch one of them
RS485 bus is docked with the minimum slot number from the RS485 route of control plate.
2. more board communication systems according to claim 1 using RS485 agreement, which is characterized in that the communication is cut
Matrix module is changed to be also used to judging described in only one to get described from control after control plate application and master control borad communication
Plate docks the first RS485 bus with the RS485 route from control plate to the application information of the first arbitration bus.
3. more board communication systems according to claim 1 using RS485 agreement, which is characterized in that the communication is cut
Matrix module is changed to be also used to after judging the minimum slot number and communicating permission less than arbitration from control plate application, confirmation have it is described from
It controls plate application and the master control borad communicates and exists after idle RS485 bus, Shen is got by the arbitration bus
Please communicate from control plate slot number, to it is described application communication from control plate slot number screened to obtain minimum slot number from control
Plate.
4. more board communication systems according to claim 1 using RS485 agreement, which is characterized in that the communication is cut
Changing matrix module is CPLD device.
5. more board communication systems according to claim 1 using RS485 agreement, which is characterized in that the master control borad
Also pass through control bus with the communication switching matrix module to connect.
6. more board communication systems according to claim 4 using RS485 agreement, which is characterized in that the communication is cut
It changes matrix module and is provided with difference and turn single-ended signal circuit.
7. more board communication systems according to claim 6 using RS485 agreement, which is characterized in that the master control borad
It is connect with the communication switching matrix module by N+1 RS485 bus asynchronous communication；
It is connect from control plate with the communication switching matrix module by RS485 route asynchronous communication described in each.
8. a kind of more board means of communication using RS485 agreement characterized by comprising
In judgement at least there are two after control plate application and master control borad communication, by arbitration bus get application communication from control
Plate slot number is screened to obtain minimum slot number from control plate from control plate slot number to the application communication；
Judging that the minimum slot number, will be minimum in idle and route serial number after from control plate application to arbitration communication permission
Arbitration bus distributes to the minimum slot number from control plate, and dispatch one of RS485 bus and the minimum slot number from
The RS485 route of control plate is docked.
9. more board means of communication according to claim 8 using RS485 agreement, which is characterized in that further include: sentencing
Breaking, only one is described after control plate application and master control borad communication, gets described from control plate to the Shen of the first arbitration bus
Please information, by the first RS485 bus with it is described from control plate RS485 route dock.
10. more board means of communication according to claim 8 using RS485 agreement, which is characterized in that further include:
After judging that the minimum slot number communicates permission less than arbitration from control plate application, confirmation has described from control plate application and the master control
Plate communication and exist after idle RS485 bus, by the arbitration bus get application communication from control board slot position
Number, screened to obtain minimum slot number from control plate from control plate slot number to the application communication.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198728.5A CN106598888B (en) | 2016-12-22 | 2016-12-22 | A kind of more board communication systems and method using RS485 agreement |
| PCT/CN2017/088988 WO2018113217A1 (en) | 2016-12-22 | 2017-06-19 | Multi-board communication system and method using rs485 protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198728.5A CN106598888B (en) | 2016-12-22 | 2016-12-22 | A kind of more board communication systems and method using RS485 agreement |
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| CN106598888A CN106598888A (en) | 2017-04-26 |
| CN106598888B true CN106598888B (en) | 2019-07-12 |
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| WO (1) | WO2018113217A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106598888B (en) * | 2016-12-22 | 2019-07-12 | 广东威创视讯科技股份有限公司 | A kind of more board communication systems and method using RS485 agreement |
| CN107547281B (en) * | 2017-09-18 | 2020-07-24 | 通鼎互联信息股份有限公司 | Main/standby competition method, device and application equipment |
| CN110908275B (en) * | 2019-11-24 | 2023-05-05 | 北京长峰科威光电技术有限公司 | Multi-circuit control method based on single communication interface |
| CN114465842B (en) * | 2022-01-30 | 2024-02-13 | 合肥美的电冰箱有限公司 | Communication system, household appliance, remote upgrading system and communication method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427352A (en) * | 2001-12-18 | 2003-07-02 | 佳能株式会社 | Bus use request regulating method and system thereof |
| CN201556117U (en) * | 2009-11-11 | 2010-08-18 | 上海爱瑞科技发展有限公司 | PCI extend circuit for resolving the demand of PCI slot positions |
| CN102023954A (en) * | 2009-09-17 | 2011-04-20 | 研祥智能科技股份有限公司 | Device with multiple I2C buses, processor, system main board and industrial controlled computer |
| CN104516851A (en) * | 2014-12-31 | 2015-04-15 | 福州瑞芯微电子有限公司 | Address distribution system and method for RS485 slave equipment |
| CN204808315U (en) * | 2015-07-23 | 2015-11-25 | 绵阳灵通电讯设备有限公司 | System based on inter -plate communication is realized to SPI serial peripheral hardware interface protocol |
| CN105259839A (en) * | 2015-11-02 | 2016-01-20 | 日立永济电气设备（西安）有限公司 | Multi-circuit board parallel communication system and method |
| CN105677608A (en) * | 2015-12-31 | 2016-06-15 | 浙江众合科技股份有限公司 | Multi-master RS485 bus arbitration method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106598888B (en) * | 2016-12-22 | 2019-07-12 | 广东威创视讯科技股份有限公司 | A kind of more board communication systems and method using RS485 agreement |
-
2016
- 2016-12-22 CN CN201611198728.5A patent/CN106598888B/en not_active Expired - Fee Related
-
2017
- 2017-06-19 WO PCT/CN2017/088988 patent/WO2018113217A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427352A (en) * | 2001-12-18 | 2003-07-02 | 佳能株式会社 | Bus use request regulating method and system thereof |
| CN102023954A (en) * | 2009-09-17 | 2011-04-20 | 研祥智能科技股份有限公司 | Device with multiple I2C buses, processor, system main board and industrial controlled computer |
| CN201556117U (en) * | 2009-11-11 | 2010-08-18 | 上海爱瑞科技发展有限公司 | PCI extend circuit for resolving the demand of PCI slot positions |
| CN104516851A (en) * | 2014-12-31 | 2015-04-15 | 福州瑞芯微电子有限公司 | Address distribution system and method for RS485 slave equipment |
| CN204808315U (en) * | 2015-07-23 | 2015-11-25 | 绵阳灵通电讯设备有限公司 | System based on inter -plate communication is realized to SPI serial peripheral hardware interface protocol |
| CN105259839A (en) * | 2015-11-02 | 2016-01-20 | 日立永济电气设备（西安）有限公司 | Multi-circuit board parallel communication system and method |
| CN105677608A (en) * | 2015-12-31 | 2016-06-15 | 浙江众合科技股份有限公司 | Multi-master RS485 bus arbitration method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106598888A (en) | 2017-04-26 |
| WO2018113217A1 (en) | 2018-06-28 |
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