CN110032536A - Two be MCU method of data synchronization, apparatus and system - Google Patents
Two be MCU method of data synchronization, apparatus and system Download PDFInfo
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- CN110032536A CN110032536A CN201910244416.0A CN201910244416A CN110032536A CN 110032536 A CN110032536 A CN 110032536A CN 201910244416 A CN201910244416 A CN 201910244416A CN 110032536 A CN110032536 A CN 110032536A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—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
- G06F13/423—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 with synchronous protocol
Abstract
It is MCU method of data synchronization, apparatus and system that the embodiment of the present disclosure, which provides one kind two, which comprises the first MCU sends the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU is connected by respective serial ports；Receive the second synchrodata of the 2nd MCU feedback, wherein the second synchrodata is sent after receiving the first synchrodata by the 2nd MCU.Solve the problems, such as to realize in the related technology two be MCU data it is synchronous need to lead to higher cost by additional device, in the program that sequence executes, two be MCU using serial ports, and to can be realized data synchronous, and cost is greatly saved.
Description
Technical field
This disclosure relates to which field of communication technology, is MCU method of data synchronization, device and is in particular to one kind two
System.
Background technique
In safety programmable logic controller (the Programmable Logic of binary channels band diagnosis (1oo2D) framework
Controller, PLC) in system, two on input and output I O board card be micro-control unit (Microcontroller Unit,
MCU it is synchronous) to need to carry out one or many data within a scan period, to complete synchronous acquisition, data exchange and voting
With synchronism output function.
Current two be that MCU is realized there are mainly two types of the synchronous methods of data:
1, two be that MCU is connected respectively to two network interface cards, and two network interface cards are connected directly, and two be that MCU by network interface card realizes data
It is synchronous.MCU1 and MCU2 directly accesses network interface card 1 and network interface card 2 respectively, and two network interface cards are realized data exchange by hardware link, such as schemed
Shown in 1.
2, two be MCU by way of shared drive RAM, realizes that the data between MCU are synchronous.Executing synchronizing function
When, MCU1 and MCU2 are successively stored in the data of oneself in dual port RAM respectively, then the data of other side are obtained from dual port RAM,
To realize that two be that the data of MCU synchronize, as shown in Figure 2.
Above scheme is all using by additional device (such as network interface card and dual port RAM), and realization two is that the data of MCU are same
Step, higher cost are not suitable for that synchrodata amount is little and the more sensitive I O board card of cost.
It needs to lead to higher cost by additional device in the related technology, realization two is that the data of MCU are synchronous
Problem, there has been no reasonable solutions at present.
Summary of the invention
It is MCU method of data synchronization, apparatus and system that the embodiment of the present disclosure, which provides one kind two, at least to solve related skill
Realize that two be the problem of synchronous needs of data of MCU lead to higher cost by additional device in art.
According to one embodiment of the disclosure, providing one kind two is micro-control unit MCU method of data synchronization, comprising:
First MCU sends the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU passes through respective serial ports
It is connected；Receive the second synchrodata of the 2nd MCU feedback, wherein second synchrodata is received by the 2nd MCU
It is sent after to first synchrodata.
Preferably, after the first MCU sends the first synchrodata to the 2nd MCU, the method also includes: it is default first
In time, the first MCU repeats the second synchrodata whether inquiry receives the 2nd MCU feedback, wherein when described the
When one MCU receives second synchrodata, terminate the synchronous process of current data.
Preferably, described when the first MCU does not receive second synchrodata when more than the first preset time
First MCU determines the synchronous process time-out of current data, terminates the synchronous process of current data.
According to another embodiment of the present disclosure, additionally providing one kind two is micro-control unit MCU method of data synchronization, packet
Include: the 2nd MCU receives the first synchrodata that the first MCU is sent, wherein the first MCU and the 2nd MCU passes through respective
Serial ports be connected；For 2nd MCU after receiving first synchrodata, the first MCU of Xiang Suoshu sends the second same step number
According to.
Preferably, before the first MCU of Xiang Suoshu sends the second synchrodata, the method also includes: when second is default
In, the 2nd MCU repeats whether inquiry receives first synchrodata, when receiving first synchrodata
When, the 2nd MCU sends second synchrodata to the first MCU, and terminates current synchronization process.
According to another embodiment of the present disclosure, additionally providing one kind two is micro-control unit MCU data synchronization unit, application
In the first MCU, comprising: the first sending module, for the 2nd MCU send the first synchrodata, wherein the first MCU and
2nd MCU is connected by respective serial ports；First receiving module, second for receiving the 2nd MCU feedback are synchronous
Data, wherein second synchrodata is fed back after receiving first synchrodata by the 2nd MCU.
According to another embodiment of the present disclosure, additionally providing one kind two is micro-control unit MCU data synchronization unit, application
In the 2nd MCU, comprising: the second receiving module, for receiving the first synchrodata of the first MCU transmission, wherein described first
MCU is connected with the 2nd MCU by respective serial ports；Second sending module, for the 2nd MCU receive it is described
After first synchrodata, the first MCU of Xiang Suoshu sends the second synchrodata.
According to another embodiment of the present disclosure, additionally providing one kind two is micro-control unit MCU data synchronous system, packet
Include: the first MCU and the 2nd MCU, the first MCU are connected with the 2nd MCU by respective serial ports, wherein described first
MCU is used to send the first synchrodata to the 2nd MCU；2nd MCU is for receiving first synchrodata
Afterwards, the first MCU of Xiang Suoshu sends the second synchrodata.
According to another embodiment of the present disclosure, a kind of storage medium is additionally provided, meter is stored in the storage medium
Calculation machine program, wherein the computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
According to another embodiment of the present disclosure, a kind of electronic device, including memory and processor are additionally provided, it is special
Sign is, computer program is stored in the memory, and the processor is arranged to run the computer program to hold
Step in row any of the above-described embodiment of the method.
Two provided by the embodiment of the present disclosure are that MCU method of data synchronization, the first MCU and the 2nd MCU pass through itself
Serial ports is connected, and the first MCU actively initiates data and synchronizes, and the 2nd MCU is waited to reply；2nd MCU passively waits the first MCU to send number
According to after the data for receiving the first MCU transmission, mono- MCU of Cai Xiang, which is replied, needs synchronous data.It solves in the related technology
Realize that two be the problem of synchronous needs of data of MCU lead to higher cost by additional device, in the program that sequence executes,
Two be MCU using serial ports, and to can be realized data synchronous, and cost is greatly saved.
Detailed description of the invention
Attached drawing described herein is used to provide further understanding of the disclosure, constitutes part of this application, this public affairs
The illustrative embodiments and their description opened do not constitute the improper restriction to the disclosure for explaining the disclosure.In the accompanying drawings:
Fig. 1 is the flow chart of MCU method of data synchronization in the related technology；
Fig. 2 is the another flow chart of MCU method of data synchronization in the related technology；
Fig. 3 is the hardware block diagram that one kind two of the embodiment of the present disclosure is the mobile terminal of MCU method of data synchronization；
Fig. 4 is two flow chart for being MCU method of data synchronization in the embodiment of the present disclosure；
Fig. 5 is the two another flow chart for being MCU method of data synchronization in the embodiment of the present disclosure；
Fig. 6 be according to the embodiment of the present disclosure applied to the two of the first MCU be MCU data synchronization unit structural block diagram；
Fig. 7 be according to the embodiment of the present disclosure applied to the two of the 2nd MCU be MCU data synchronization unit structural block diagram；
Fig. 8 be according to the two of the embodiment of the present disclosure be MCU data synchronous system structural block diagram；
Fig. 9 be the two of the embodiment of the present disclosure be MCU work flow diagram；
Figure 10 is two flow chart for being MCU realizes that data are synchronized using serial ports in the embodiment of the present disclosure.
Specific embodiment
The disclosure is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that the specification and claims of the disclosure and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.
Embodiment 1
Two be that MCU method of data synchronization embodiment can be in mobile terminal, computer provided by the embodiment of the present application one
It is executed in terminal or similar arithmetic unit.For running on mobile terminals, Fig. 3 is a kind of rope of the embodiment of the present disclosure
The hardware block diagram of the mobile terminal of the sending method of fuse breath.As shown in figure 3, mobile terminal 10 may include one or more
(processor 102 can include but is not limited to Micro-processor MCV or programmable logic to a (one is only shown in Fig. 3) processor 102
The processing unit of device FPGA etc.) and memory 104 for storing data, optionally, above-mentioned mobile terminal can also include
Transmission device 106 and input-output equipment 108 for communication function.It will appreciated by the skilled person that Fig. 3 institute
The structure shown is only to illustrate, and does not cause to limit to the structure of above-mentioned mobile terminal.For example, mobile terminal 10 may also include ratio
More perhaps less component shown in Fig. 3 or with the configuration different from shown in Fig. 3.
Memory 104 can be used for storing computer program, for example, the software program and module of application software, such as this public affairs
The corresponding computer program of acquisition methods of the scheduled throughput in embodiment is opened, processor 102 is stored in storage by operation
Computer program in device 104 realizes above-mentioned method thereby executing various function application and data processing.Memory
104 may include high speed random access memory, may also include nonvolatile memory, and such as one or more magnetic storage device dodges
It deposits or other non-volatile solid state memories.In some instances, memory 104 can further comprise relative to processor
102 remotely located memories, these remote memories can pass through network connection to mobile terminal 10.The example of above-mentioned network
Including but not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Transmitting device 106 is used to that data to be received or sent via a network.Above-mentioned network specific example may include
The wireless network that the communication providers of mobile terminal 10 provide.In an example, transmitting device 106 includes a Network adaptation
Device (Network Interface Controller, referred to as NIC), can be connected by base station with other network equipments to
It can be communicated with internet.In an example, transmitting device 106 can for radio frequency (Radio Frequency, referred to as
RF) module is used to wirelessly be communicated with internet.
It is MCU method of data synchronization that the embodiment of the present disclosure, which provides one kind two,.It two is MCU that Fig. 4, which is in the embodiment of the present disclosure,
The flow chart of method of data synchronization, as shown in figure 4, this method comprises:
Step S401, the first MCU send the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU passes through each
From serial ports be connected；
Step S403 receives the second synchrodata of the 2nd MCU feedback, wherein the second synchrodata is received by the 2nd MCU
It is sent after to the first synchrodata.
By the above method, the first MCU sends the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU is logical
Respective serial ports is crossed to be connected；Receive the second synchrodata of the 2nd MCU feedback, wherein the second synchrodata is received by the 2nd MCU
It is sent after to the first synchrodata.It solves and realizes that two be the synchronous needs of data of MCU by additional device in the related technology
The problem of leading to higher cost, in the program that sequence executes, two be MCU using serial ports, and to can be realized data synchronous, saves significantly
Cost is saved.
Preferably, after above-mentioned steps S401, the method also includes: in the first preset time, the first MCU is repeated
Whether inquiry receives the second synchrodata of the 2nd MCU feedback, wherein when the first MCU receives the second synchrodata, terminates
The synchronous process of current data.
Preferably, when more than the first preset time, when the first MCU does not receive second synchrodata, the first MCU is true
Determine the synchronous process time-out of current data, terminates the synchronous process of current data.
Fig. 5 is the two another flow chart for being MCU method of data synchronization in the embodiment of the present disclosure, as shown in figure 5, this method packet
It includes:
Step S501, the 2nd MCU receive the first synchrodata that the first MCU is sent, wherein the first MCU and the 2nd MCU is logical
Respective serial ports is crossed to be connected；
Step S503, the 2nd MCU send the second synchrodata after receiving the first synchrodata, to the first MCU.
Preferably, before above-mentioned steps S503, the method also includes: in the second preset time, the 2nd MCU repeats to look into
It askes and whether receives the first synchrodata, when receiving the first synchrodata, the 2nd MCU sends second to the first MCU and synchronizes
Data, and terminate current synchronization process.
Embodiment 2
Additionally providing one kind two in the present embodiment is MCU data synchronization unit, and the device is for realizing above-described embodiment
And preferred embodiment, the descriptions that have already been made will not be repeated.As used below, term " module " may be implemented to make a reservation for
The combination of the software and/or hardware of function.It is hard although device described in following embodiment is preferably realized with software
The realization of the combination of part or software and hardware is also that may and be contemplated.
Fig. 6 be according to the embodiment of the present disclosure applied to the two of the first MCU be MCU data synchronization unit structural block diagram,
As shown in fig. 6, the device includes:
First sending module 60, for sending the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU is logical
Respective serial ports is crossed to be connected；
First receiving module 62, for receive the 2nd MCU feedback the second synchrodata, wherein the second synchrodata by
2nd MCU is fed back after receiving the first synchrodata.
By above-mentioned apparatus, the first sending module 60 sends the first synchrodata to the 2nd MCU, wherein the first MCU and the
Two MCU are connected by respective serial ports；First receiving module 62 receives the second synchrodata of the 2nd MCU feedback, wherein second
Synchrodata is fed back after receiving the first synchrodata by the 2nd MCU.Solving realization two in the related technology is that the data of MCU are same
Step needs the problem of leading to higher cost by additional device, and in the program that sequence executes, two be that MCU utilizes serial ports
It realizes that data are synchronous, cost is greatly saved.
Fig. 7 be according to the embodiment of the present disclosure applied to the two of the 2nd MCU be MCU data synchronization unit structural block diagram,
As shown in fig. 7, the device includes:
Second receiving module 70, for receiving the first synchrodata of the first MCU transmission, wherein the first MCU and second
MCU is connected by respective serial ports；
Second sending module 72, for after receiving the first synchrodata, sending second to the first MCU in the 2nd MCU
Synchrodata.
Fig. 8 be according to the two of the embodiment of the present disclosure be MCU data synchronous system structural block diagram, as shown in figure 8, the system
Include:
First MCU (MCU1) and the 2nd MCU (MCU2), the first MCU and the 2nd MCU are connected by respective serial ports, wherein
First MCU is used to send the first synchrodata to the 2nd MCU；2nd MCU is used for after receiving the first synchrodata, to first
MCU sends the second synchrodata.
As shown in figure 8, MCU1 and MCU2 can be the single-chip microcontroller of same model, single-chip microcontroller carries serial ports, the string of two MCU
It mouthful is directly connected to, OSC1 and OSC2 are the crystal oscillators of same model.
Fig. 9 be the two of the embodiment of the present disclosure be MCU work flow diagram, as shown in figure 9, MCU1 and MCU2 independent operating phase
Same firmware program, periodically sequence execute function 1, function 2 ... ..., data synchronizing function ... ..., function N+n.
As shown in figure 9, a data receiver interrupts, for receiving synchrodata there are two interrupting in each MCU；It is another
A is 1ms timer interruption, is used for system timing.
When executing data synchronizing function, MCU1 active transmission data to MCU2, what the MCU1 to be received such as MCU2 is passive were sent
Data, MCU2 are just replied to MCU1 only after the data for receiving MCU1 transmission.
Figure 10 is two flow chart for being MCU realizes that data are synchronized using serial ports in the embodiment of the present disclosure, as shown in Figure 10, tool
Body running principle is as follows:
The simultaneously powered up operation of MCU1 and MCU2, when MCU1, which is run to, needs to be implemented data synchronizing function, then MCU1 active
It sends and needs synchronous data to MCU2, then MCU2 is waited to reply, constantly inquire and whether receive in the time-out time of setting
It is synchronous to terminate this data if having received the data of MCU2 reply in time-out time for the data that MCU2 is replied；If
MCU1 does not receive the data of MCU2 reply in the time-out time of setting, and MCU1 judges current data Synchronization timeout, terminates this
Secondary data are synchronous.When MCU2, which is run to, needs to be implemented data synchronizing function, the data for having received MCU1 are first checked whether, such as
Fruit has received the data of MCU1, then the data for sending agreement, the same the end of the step of this data are replied to MCU1；If MCU2 is not received
To the data of MCU1, then MCU1 is waited to send data, is constantly inquired in the time-out time of setting and whether receive MCU1 transmission
It is synchronous to terminate this data if having received the data of MCU1 transmission in time-out time for data；If in the time-out of setting
The data of MCU1 transmission are not received in time, MCU2 judges current data Synchronization timeout, and it is synchronous to terminate this data.
Embodiment 3
Embodiment of the disclosure additionally provides a kind of storage medium, is stored with computer program in the storage medium, wherein
The computer program is arranged to execute the step in any of the above-described embodiment of the method when operation.
Optionally, in the present embodiment, above-mentioned storage medium can be set to store by executing based on following steps
Calculation machine program:
S1, the first MCU send the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU passes through respective string
Mouth is connected；
S2 receives the second synchrodata of the 2nd MCU feedback, wherein the second synchrodata receives first by the 2nd MCU
It is sent after synchrodata.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to: USB flash disk, read-only memory (Read-
Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard
The various media that can store computer program such as disk, magnetic or disk.
Embodiment of the disclosure additionally provides a kind of electronic device, including memory and processor, stores in the memory
There is computer program, which is arranged to run computer program to execute the step in any of the above-described embodiment of the method
Suddenly.
Optionally, above-mentioned electronic device can also include transmission device and input-output equipment, wherein the transmission device
It is connected with above-mentioned processor, which connects with above-mentioned processor.
Optionally, in the present embodiment, above-mentioned processor can be set to execute following steps by computer program:
S1, the first MCU send the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU passes through respective string
Mouth is connected；
S2 receives the second synchrodata of the 2nd MCU feedback, wherein the second synchrodata receives first by the 2nd MCU
It is sent after synchrodata.
Specific example in the present embodiment can refer to example described in above-described embodiment and optional embodiment, this
Details are not described herein for embodiment.
Obviously, those skilled in the art should be understood that each module of the above-mentioned disclosure or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
It is performed by computing device in the storage device, and in some cases, it can be to be different from shown in sequence execution herein
Out or description the step of, perhaps they are fabricated to each integrated circuit modules or by them multiple modules or
Step is fabricated to single integrated circuit module to realize.It is combined in this way, the disclosure is not limited to any specific hardware and software.
The foregoing is merely preferred embodiment of the present disclosure, are not limited to the disclosure, for the skill of this field
For art personnel, the disclosure can have various modifications and variations.It is all within the principle of the disclosure, it is made it is any modification, etc.
With replacement, improvement etc., should be included within the protection scope of the disclosure.
Claims (10)
1. one kind two is micro-control unit MCU method of data synchronization characterized by comprising
First MCU sends the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU passes through respective
Serial ports is connected；
Receive the second synchrodata of the 2nd MCU feedback, wherein second synchrodata is received by the 2nd MCU
It is sent after to first synchrodata.
2. the method according to claim 1, wherein the first MCU to the 2nd MCU send the first synchrodata it
Afterwards, the method also includes:
In the first preset time, the first MCU repeats the second same step number whether inquiry receives the 2nd MCU feedback
According to, wherein when the first MCU receives second synchrodata, terminate the synchronous process of current data.
3. according to the method described in claim 2, it is characterized in that,
When more than the first preset time, when the first MCU does not receive second synchrodata, the first MCU is determined
The synchronous process time-out of current data, terminates the synchronous process of current data.
4. one kind two is micro-control unit MCU method of data synchronization characterized by comprising
2nd MCU receives the first synchrodata that the first MCU is sent, wherein the first MCU and the 2nd MCU passes through each
From serial ports be connected；
For 2nd MCU after receiving first synchrodata, the first MCU of Xiang Suoshu sends the second synchrodata.
5. according to the method described in claim 4, it is characterized in that, to the first MCU send the second synchrodata before, institute
State method further include:
In the second preset time, the 2nd MCU repeats whether inquiry receives first synchrodata, when receiving
When stating the first synchrodata, the 2nd MCU sends second synchrodata to the first MCU, and terminates currently same
Walk process.
6. one kind two is micro-control unit MCU data synchronization unit, it is applied to the first MCU characterized by comprising
First sending module, for sending the first synchrodata to the 2nd MCU, wherein the first MCU and the 2nd MCU
It is connected by respective serial ports；
First receiving module, for receiving the second synchrodata of the 2nd MCU feedback, wherein second synchrodata
It is fed back after receiving first synchrodata by the 2nd MCU.
7. one kind two is micro-control unit MCU data synchronization unit, it is applied to the 2nd MCU characterized by comprising
Second receiving module, for receiving the first synchrodata of the first MCU transmission, wherein the first MCU and described second
MCU is connected by respective serial ports；
Second sending module, for after receiving first synchrodata, the first MCU of Xiang Suoshu to be sent out in the 2nd MCU
Send the second synchrodata.
8. one kind two is micro-control unit MCU data synchronous system characterized by comprising the first MCU and the 2nd MCU, it is described
First MCU is connected with the 2nd MCU by respective serial ports, wherein
First MCU is used to send the first synchrodata to the 2nd MCU；
2nd MCU is used for after receiving first synchrodata, and the first MCU of Xiang Suoshu sends the second synchrodata.
9. a kind of storage medium, which is characterized in that be stored with computer program in the storage medium, wherein the computer
Program is arranged to execute method described in any one of claim 1 to 5 when operation.
10. a kind of electronic device, including memory and processor, which is characterized in that it is stored with computer program in the memory,
The processor is arranged to run the computer program to execute method described in any one of claim 1 to 5.
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| CN117524029A (en) * | 2024-01-05 | 2024-02-06 | 武汉精立电子技术有限公司 | Test signal generation system and panel detection equipment |
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| CN109032021A (en) * | 2018-08-07 | 2018-12-18 | 中国航空工业集团公司雷华电子技术研究所 | A kind of application method of the double MCU warm back-up control systems of redundancy |
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| CN116880339A (en) * | 2023-09-07 | 2023-10-13 | 北京控达科技有限公司 | Data period synchronization method and system based on double MCUs |
| CN116880339B (en) * | 2023-09-07 | 2023-11-28 | 北京控达科技有限公司 | Data period synchronization method and system based on double MCUs |
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