CN110401586A - A kind of bus communication, device, equipment and readable storage medium storing program for executing - Google Patents
A kind of bus communication, device, equipment and readable storage medium storing program for executing Download PDFInfo
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- CN110401586A CN110401586A CN201910683188.7A CN201910683188A CN110401586A CN 110401586 A CN110401586 A CN 110401586A CN 201910683188 A CN201910683188 A CN 201910683188A CN 110401586 A CN110401586 A CN 110401586A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40013—Details regarding a bus controller
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- Computer Networks & Wireless Communication (AREA)
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- Computer Security & Cryptography (AREA)
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Abstract
The invention discloses a kind of bus communications, method includes the following steps: obtaining the first signal transmitted in the first bus according to the first transport protocol；According to the Corresponding matching relationship of Wishbone agreement and the first transport protocol, the first signal is converted, obtains Wishbone signal；According to the Corresponding matching relationship of Wishbone agreement and the second transport protocol, Wishbone signal is converted；Wherein, the first transport protocol, Wishbone agreement and the second transport protocol are different；Control the second signal obtained after the second bus transfer conversion Wishbone signal.As it can be seen that this method can reduce the complexity of communication issue between foreign peoples's bus.The invention also discloses a kind of bus communicating devices, equipment and readable storage medium storing program for executing, have corresponding technical effect.
Description
Technical field
The present invention relates to fields of communication technology, more particularly to a kind of bus communication, device, equipment and readable storage
Medium.
Background technique
Along with science and technology development, the arriving of big data era, whether mass data processing or low-power consumption power saving ring
The new line for protecting consciousness, is all one of the target that society is paid attention to.Server used in data center, earlier chip and core
The interface that piece is linked up, other than using I2C bus interface, another important interface is lpc bus, to the ESPI of latest generation
Bus is all important communication interface.
Wherein, lpc bus only needs seven signal line for research and development in 1998, and data line can be simplified to 4, i.e., can be complete
At communication, speed can reach 33MHz.ESPI bus, this data line maintains 4, but speed reaches as high as lpc bus
Twice, reach 66MHz, and voltage quasi position drops to 1.8V also from original 3.3V.As it can be seen that ESPI bus not only conforms to the modern times
Server develop towards low-power consumption, bandwidth efficiency also improves twice than previously.But in practical applications, and not all IC
It is all using ESPI bus interface, many interfaces still use I2C bus, UART bus, spi bus etc..
It, can not direct communication between different types of bus, if it is desired to realize and be communicated between foreign peoples's bus, then need same
When research concern two kinds of buses control method.Such as, if it is desired to ESPI bus is communicated with the realization of I2C bus, and designer needs
It goes how research ESPI module and I2C module will control simultaneously, how to control entire data flow, accurate can just allow two
Interface can be transmitted with proper communication, data.It needs to write data exchange control module between ESPI and I2C module, it just can be with
Two different interfaces are allowed to communicate with each other.But, it is desirable to ESPI bus is communicated with UART bus, then needing to grind again again
Suitable data exchange control module can just be write out by studying carefully.
In conclusion the problems such as how efficiently solving the communication of foreign peoples's bus, is that current those skilled in the art are badly in need of
The technical issues of solution.
Summary of the invention
The object of the present invention is to provide a kind of bus communication, device, equipment and readable storage medium storing program for executing, to reduce foreign peoples
The communication issue complexity of bus.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of bus interface communication means, comprising:
Obtain the first signal transmitted in the first bus according to the first transport protocol；
According to the Corresponding matching relationship of Wishbone agreement and first transport protocol, first signal is turned
It changes, obtains Wishbone signal；
According to the Corresponding matching relationship of the Wishbone agreement and the second transport protocol, to the Wishbone signal into
Row conversion；Wherein, first transport protocol, the Wishbone agreement and second transport protocol are different；
It controls the second bus transfer and converts the second signal obtained after the Wishbone signal.
Preferably, the second bus transfer of the control converts the second signal obtained after the Wishbone signal, comprising:
Transmission control parameters are obtained, and control the second letter described in second bus transfer according to the transmission control parameters
Number configured transmission；Wherein, the configured transmission includes frequency and data width.
Preferably, the acquisition transmission control parameters, comprising:
Destination register value is read, determines that the transmission is controlled according to the corresponding relationship of the configured transmission and register value
Parameter processed.
Preferably, further includes:
User's control instruction is received, executes the user's control instruction to adjust the destination register value.
It is preferably, described to obtain the first signal transmitted in the first bus according to the first transport protocol, comprising:
Obtain the ESPI signal transmitted in ESPI bus according to ESPI protocol.
Preferably, further includes:
According to the Corresponding matching relationship of the Wishbone agreement and third transport protocol, to the Wishbone signal into
Row conversion；
Control third bus transfer converts the third signal obtained after the Wishbone signal；Wherein, the third passes
Defeated agreement, first transport protocol, second transport protocol and the Wishbone agreement are different.
Preferably, according to the Corresponding matching relationship of Wishbone agreement and first transport protocol, to first letter
It number is converted, obtains Wishbone signal, comprising:
According to the Corresponding matching relationship of the Wishbone agreement and first transport protocol, to first signal into
Row conversion, and the Wishbone signal is transmitted in Wishbone bus.
A kind of bus communicating devices, comprising:
First signal acquisition module, for obtaining the first signal transmitted in the first bus according to the first transport protocol；
First signal conversion module, for being closed according to the Corresponding matching of Wishbone agreement and first transport protocol
System, converts first signal, obtains Wishbone signal；
Second signal conversion module, for being closed according to the Corresponding matching of the Wishbone agreement and the second transport protocol
System, converts the Wishbone signal；Wherein, first transport protocol, the Wishbone agreement and described
Two transport protocols are different；
Second signal transmission module converts obtain after the Wishbone signal second for controlling the second bus transfer
Signal.
A kind of bus communication device, comprising:
CPLD, the first bus port and the second bus port, and the CPLD respectively with first bus port and institute
The second bus port is stated to be connected；
Wherein, first bus port, for being connect with external first bus；
Second bus port, for being connect with external second bus；
The CPLD, for obtaining the first signal transmitted in the first bus according to the first transport protocol；According to
The Corresponding matching relationship of Wishbone agreement and first transport protocol converts first signal, obtains
Wishbone signal；According to the Corresponding matching relationship of the Wishbone agreement and the second transport protocol, to the Wishbone
Signal is converted；Wherein, the mutual not phase of first transport protocol, the Wishbone agreement and second transport protocol
Together；It controls the second bus transfer and converts the second signal obtained after the Wishbone signal.
Using method provided by the embodiment of the present invention, obtain in the first bus according to the first of the transmission of the first transport protocol
Signal；According to the Corresponding matching relationship of Wishbone agreement and the first transport protocol, the first signal is converted, is obtained
Wishbone signal；According to the Corresponding matching relationship of Wishbone agreement and the second transport protocol, Wishbone signal is carried out
Conversion；Wherein, the first transport protocol, Wishbone agreement and the second transport protocol are different；Control the second bus transfer
The second signal obtained after conversion Wishbone signal.
Wishbone bus is a kind of bus of open architecture, and wide-spread using for a long time, control mode is simple.In
It is simple by control mode when needing to realize the communication between the first bus of foreign peoples and the second bus in this method
Wishbone bus realizes foreign peoples's bus communication between the first bus and Wishbone bus, i.e., by as medium first
The first signal transmitted in one bus is converted to the Wishbone signal that can be transmitted in Wishbone bus；It then, then will
Wishbone signal is converted to the second signal that can be transmitted in the second bus.As it can be seen that will directly convert the first signal in this method
Challenge between second signal, the conversion subproblem and second being converted between the first signal and Wishbone signal
Conversion subproblem between signal and Wishbone signal.And since Wishbone bus marco is simple, it is easy to accomplish, after conversion
Two sub-problems it is opposite be easier to solve, the complexity of communication issue between foreign peoples's bus can be reduced, further can be significantly
The research and development for reducing research staff are time-consuming, and since Wishbone bus marco is simple, corresponding service logic is also more simple,
It is not easy to make mistakes.
Correspondingly, the embodiment of the invention also provides bus communicating devices corresponding with above-mentioned bus communication, set
Standby and readable storage medium storing program for executing, has above-mentioned technique effect, and details are not described herein.
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 for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of implementation flow chart of bus communication in the embodiment of the present invention；
Fig. 2 is the control principle schematic diagram that ESPI bus and Wishbone bus communication are realized in the embodiment of the present invention；
Fig. 3 is to realize that the specific control principle of ESPI bus and Wishbone bus communication is illustrated in the embodiment of the present invention
Figure；
Fig. 4 is the corresponding upper layer IP module diagram of ESPI collocation Wishbone bus in the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of bus communicating devices in the embodiment of the present invention；
Fig. 6 is ESPI bus a kind of in the embodiment of the present invention, UART and I2C bus communication schematic illustration.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one:
Referring to FIG. 1, Fig. 1 is a kind of implementation flow chart of bus communication in the embodiment of the present invention.
This method can be applied to CPLD (Complex Programmable Logic Device, complicated programmable logic device
Part) in, this method comprises:
S101, the first signal transmitted in the first bus according to the first transport protocol is obtained.
It should be noted that first, second, and third be only used for distinguishing different objects in embodiments of the present invention, and
Meaning is limited without successive, primary and secondary etc..For example, first and second in the first bus and the second bus are used to indicate that there are two kinds
Different buses；First transport protocol is then the transport protocol implemented in the first bus, and the first signal indicates in the first bus
The signal of transmission.
In embodiments of the present invention, the first transport protocol, Wishbone agreement and the second transport protocol are different.The
One transport protocol can be one of the non-Wishbone agreements such as I2C agreement, LPC agreement, ESPI protocol, UART protocol agreement,
Second transport protocol can be other common protocols of the first transport protocol of non-present and Wishbone agreement.For example, when the first biography
When defeated agreement is I2C agreement, the second transport protocol can be ESPI protocol.Correspondingly, the first bus and the first transport protocol are corresponding,
Second bus and the second transport protocol are corresponding.For example, then the first bus is that ESPI is total when the first transport protocol is ESPI protocol
Line.
That is, to realize that ESPI bus is communicated with other buses of non-ESPI bus and Wishbone bus
When, above-mentioned steps S101 can be specially the ESPI signal for obtaining and transmitting in ESPI bus according to ESPI protocol.For example, available
The port ESPI is monitored ESPI bus, and the ESPI control module in the port ESPI can be according to ESPI protocol to ESPI bus
Electric signal is parsed, and ESPI signal is obtained.
S102, according to the Corresponding matching relationship of Wishbone agreement and the first transport protocol, the first signal is converted,
Obtain Wishbone signal.
In embodiments of the present invention, the Corresponding matching that can be predefined between Wishbone agreement and the first transport protocol closes
System, specifically, can be obtained inside it by determining Wishbone agreement and being specifically defined for the first transport protocol
Corresponding matching relationship between signal.For example, according to the transmission data wire between the first transport protocol and Wishbone agreement
Quantity determines that the electric signal of the data line a in corresponding first bus of the first transport protocol should be by Wishbone bus
Which data line is accepted, or after how need to being converted, which data to transmit the signal by.May be used also about signal conversion process
With specific reference to existing protocol integrated test system module, specifically, being solved using the first transport protocol control module to the first signal
Analysis obtains the data content transmitted and then reads the data content by Wishbone control module, and according to Wishbone
Agreement generates Wishbone signal.
Below by taking the conversion of ESPI bus and Wishbone bus as an example, signal conversion process is described in detail.Please
Referring to figs. 2 and 3.As it can be seen that the data that ESPI bus and Wishbone bus are transmitted, can all store into memory (such as RAM),
The data exchange between ESPI bus and Wishbone bus is realized through memory, it is slow that wishbone bus also can pass through configuration
Storage goes the frequency of setting ESPI, data width.When the first bus is non-ESPI bus, " ESPI " in Fig. 2 and Fig. 3 is replaced
Being changed to other buses and corresponding to title (can such as replace with I2C), and realization process can refer in this, and this is no longer going to repeat them.
In practical applications, IP application module in upper layer can refer to Fig. 4, control ESPI bus.Wherein, Fig. 4 is this
The corresponding upper layer IP module diagram of ESPI collocation Wishbone bus in inventive embodiments.In Fig. 4, left side linking
Wishbone bus, right side are then connected ESPI bus.
S103, according to the Corresponding matching relationship of Wishbone agreement and the second transport protocol, Wishbone signal is carried out
Conversion.
In the process, to the translation process of Wishbone signal can refer to above to the conversion of the first signal at
Reason process, this is no longer going to repeat them.
The second signal obtained after S104, control the second bus transfer conversion Wishbone signal.
After converting, i.e., controllable second bus transfer second signal.Specifically, it is corresponding that the second bus can be used
Transmission control module, which is realized, controls the signal of the second bus.
In embodiments of the present invention, process of first bus to the second bus transfer data is only listed, in practical application
In, be related to the second bus need to be to the first bus transfer data when, specific implementation process can refer to the first bus to
Two lines bus transmits the realization principle step of data, and this is no longer going to repeat them.
Using method provided by the embodiment of the present invention, obtain in the first bus according to the first of the transmission of the first transport protocol
Signal；According to the Corresponding matching relationship of Wishbone agreement and the first transport protocol, the first signal is converted, is obtained
Wishbone signal；According to the Corresponding matching relationship of Wishbone agreement and the second transport protocol, Wishbone signal is carried out
Conversion；Wherein, the first transport protocol, Wishbone agreement and the second transport protocol are different；Control the second bus transfer
The second signal obtained after conversion Wishbone signal.
Wishbone bus is a kind of bus of open architecture, and wide-spread using for a long time, control mode is simple.In
It is simple by control mode when needing to realize the communication between the first bus of foreign peoples and the second bus in this method
Wishbone bus realizes foreign peoples's bus communication between the first bus and Wishbone bus, i.e., by as medium first
The first signal transmitted in one bus is converted to the Wishbone signal that can be transmitted in Wishbone bus；It then, then will
Wishbone signal is converted to the second signal that can be transmitted in the second bus.As it can be seen that will directly convert the first signal in this method
Challenge between second signal, the conversion subproblem and second being converted between the first signal and Wishbone signal
Conversion subproblem between signal and Wishbone signal.And since Wishbone bus marco is simple, it is easy to accomplish, after conversion
Two sub-problems it is opposite be easier to solve, the complexity of communication issue between foreign peoples's bus can be reduced, further can be significantly
The research and development for reducing research staff are time-consuming, and since Wishbone bus marco is simple, corresponding service logic is also more simple,
It is not easy to make mistakes.
It should be noted that based on the above embodiment, the embodiment of the invention also provides be correspondingly improved scheme.Excellent
It can mutually be referred between step or corresponding steps same with the above-mentioned embodiment involved in choosing/improvement embodiment, it is corresponding beneficial
Effect can also be cross-referenced, no longer repeats one by one in preferred/improvement embodiment of this paper.
In embodiments of the present invention, the signal transmitted in bus can also be controlled.For controlling second signal, control
The second signal obtained after the second bus transfer conversion Wishbone signal is made, can be specially to obtain transmission control parameters, and press
The configured transmission of the second bus transfer second signal is controlled according to transmission control parameters；Wherein, configured transmission includes frequency and data
Width.
Wherein, transmission control parameters are obtained, it can be by reading destination register value, according to configured transmission and register value
Corresponding relationship determine transmission control parameters.Wherein, destination register is pre-set to read for user or upper layer application
The register write, and in embodiments of the present invention, it can be also the corresponding relationship of the numerical value setting and configured transmission of destination register,
For example, frequency is the integral multiple of first 4 corresponding numerical value of target register values, data width is latter 4 of target register values
Corresponding numerical value.
Preferably, user can also realize transmission control by way of sending control instruction.Have, i.e. reception user
Control instruction executes user's control instruction to adjust destination register value.Concrete implementation process and configuration and setting module pair
The specific adjustment process of configured transmission, this is no longer going to repeat them.
Preferably, in embodiments of the present invention, it is communicated when the first bus need to be realized with third bus, i.e., when data are transmitted,
Then following steps can be executed after executing above-mentioned steps S102:
Step 1: according to the Corresponding matching relationship of Wishbone agreement and third transport protocol, to Wishbone signal into
Row conversion；
Step 2: the third signal obtained after control third bus transfer conversion Wishbone signal
Wherein, third transport protocol, the first transport protocol, the second transport protocol and Wishbone agreement are different.
Above-mentioned steps one and step 2 can be cross-referenced with step S103, the step S104 in embodiment one, and this is no longer going to repeat them.
Embodiment two:
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of bus communicating devices, are described below
Bus communicating devices can correspond to each other reference with above-described bus communication.
Shown in Figure 5, which comprises the following modules:
First signal acquisition module 101, for obtaining the first signal transmitted in the first bus according to the first transport protocol；
First signal conversion module 102, for the Corresponding matching relationship according to Wishbone agreement and the first transport protocol,
First signal is converted, Wishbone signal is obtained；
Second signal conversion module 103, for the Corresponding matching relationship according to Wishbone agreement and the second transport protocol,
Wishbone signal is converted；Wherein, the mutual not phase of the first transport protocol, Wishbone agreement and the second transport protocol
Together；
Second signal transmission module 104, for control the second bus transfer conversion Wishbone signal after obtain second
Signal.
Using device provided by the embodiment of the present invention, obtain in the first bus according to the first of the transmission of the first transport protocol
Signal；According to the Corresponding matching relationship of Wishbone agreement and the first transport protocol, the first signal is converted, is obtained
Wishbone signal；According to the Corresponding matching relationship of Wishbone agreement and the second transport protocol, Wishbone signal is carried out
Conversion；Wherein, the first transport protocol, Wishbone agreement and the second transport protocol are different；Control the second bus transfer
The second signal obtained after conversion Wishbone signal.
Wishbone bus is a kind of bus of open architecture, and wide-spread using for a long time, control mode is simple.In
It is simple by control mode when needing to realize the communication between the first bus of foreign peoples and the second bus in the present apparatus
Wishbone bus realizes foreign peoples's bus communication between the first bus and Wishbone bus, i.e., by as medium first
The first signal transmitted in one bus is converted to the Wishbone signal that can be transmitted in Wishbone bus；It then, then will
Wishbone signal is converted to the second signal that can be transmitted in the second bus.As it can be seen that will directly convert the first signal in the present apparatus
Challenge between second signal, the conversion subproblem and second being converted between the first signal and Wishbone signal
Conversion subproblem between signal and Wishbone signal.And since Wishbone bus marco is simple, it is easy to accomplish, after conversion
Two sub-problems it is opposite be easier to solve, the complexity of communication issue between foreign peoples's bus can be reduced, further can be significantly
The research and development for reducing research staff are time-consuming, and since Wishbone bus marco is simple, corresponding service logic is also more simple,
It is not easy to make mistakes.
In a kind of specific embodiment of the invention, second signal transmission module 104 is specifically used for obtaining transmission control
Parameter, and according to the configured transmission of transmission control parameters the second bus transfer second signal of control；Wherein, configured transmission includes frequency
Rate and data width.
In a kind of specific embodiment of the invention, second signal transmission module 104 is specifically used for reading target deposit
Device numerical value determines transmission control parameters according to the corresponding relationship of configured transmission and register value.
In a kind of specific embodiment of the invention, further includes:
Configuration and setting module executes user's control instruction for receiving user's control instruction to adjust destination register number
Value.
In a kind of specific embodiment of the invention, the first signal acquisition module 101 is specifically used for obtaining ESPI bus
On according to ESPI protocol transmit ESPI signal.
In a kind of specific embodiment of the invention, further includes:
Third signal conversion module is right for the Corresponding matching relationship according to Wishbone agreement and third transport protocol
Wishbone signal is converted；
Third signal transmission module, for controlling the third letter obtained after third bus transfer conversion Wishbone signal
Number；Wherein, third transport protocol, the first transport protocol, the second transport protocol and Wishbone agreement are different.
In a kind of specific embodiment of the invention, the first signal conversion module 102, for according to Wishbone agreement
With the Corresponding matching relationship of the first transport protocol, the first signal is converted, and is transmitted in Wishbone bus
Wishbone signal.
Embodiment three:
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of bus communication devices, are described below
A kind of bus communication device can correspond to each other reference with a kind of above-described bus communication.
CPLD, the first bus port and the second bus port, and CPLD respectively with the first bus port and the second bus end
Mouth is connected；
Wherein, the first bus port, for being connect with external first bus；
Second bus port, for being connect with external second bus；
CPLD, for obtaining the first signal transmitted in the first bus according to the first transport protocol；It is assisted according to Wishbone
The Corresponding matching relationship of view and the first transport protocol, converts the first signal, obtains Wishbone signal；According to
The Corresponding matching relationship of Wishbone agreement and the second transport protocol, converts Wishbone signal；Wherein, the first transmission
Agreement, Wishbone agreement and the second transport protocol are different；After controlling the second bus transfer conversion Wishbone signal
The second signal of acquisition
Using bus communication provided by above method embodiment, correspondingly, institute of the embodiment of the present invention in CPLD
Also the technical effect that there is the bus communication device of offer above method embodiment to have, this is no longer going to repeat them.
It in practical applications, can be by the functional module of the building realization above method step in CPLD.Realize that I2C is total below
For line, UART bus are communicated with the realization of ESPI bus, it is described in detail.
Referring to FIG. 6, Fig. 6 is ESPI bus a kind of in the embodiment of the present invention, the signal of UART and I2C bus communication principle
Figure.
Firstly, CPLD building I2C control module, Wishbone bus module, UART control module, Wishbone bus and
ESPI port control modules.Wherein, I2C control module is used to control the data transmission of I2C bus, and obtains transmission signal extremely
Wishbone bus module；UART module is used to control the data transmission of UART bus, and obtains transmission signal to Wishbone
Bus module；ESPI port control modules are for controlling ESPI bus data transfer, and it is total to Wishbone to obtain transmission signal
Line traffic control module；Wishbone bus module, which converts the transmission signal received to Wishbone bus, to be transmitted, and again
It is secondary to be converted into the identifiable data information of transfer bus.That is Wishbone bus control module serves as intermediate conversion wherein
Signal is controlled engineering simplification by medium.
Wherein, the communication interaction between I2C control module and Wishbone bus module, UART control module with
It is logical between communication interaction and ESPI port control modules and Wishbone bus module between Wishbone bus module
Letter interaction can refer to the interactive process between Wishbone bus and ESPI bus herein, and specific implementation module,
This is no longer going to repeat them.
Example IV:
Corresponding to above method embodiment, the embodiment of the invention also provides a kind of readable storage medium storing program for executing, are described below
A kind of readable storage medium storing program for executing can correspond to each other reference with a kind of above-described bus communication.
A kind of readable storage medium storing program for executing is stored with computer program on readable storage medium storing program for executing, and computer program is held by processor
The step of bus communication of above method embodiment is realized when row.
The readable storage medium storing program for executing be specifically as follows USB flash disk, mobile hard disk, read-only memory (Read-Only Memory,
ROM), the various program storage generations such as random access memory (Random Access Memory, RAM), magnetic or disk
The readable storage medium storing program for executing of code.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
Claims (10)
1. a kind of bus communication characterized by comprising
Obtain the first signal transmitted in the first bus according to the first transport protocol；
According to the Corresponding matching relationship of Wishbone agreement and first transport protocol, first signal is converted,
Obtain Wishbone signal；
According to the Corresponding matching relationship of the Wishbone agreement and the second transport protocol, the Wishbone signal is turned
It changes；Wherein, first transport protocol, the Wishbone agreement and second transport protocol are different；
It controls the second bus transfer and converts the second signal obtained after the Wishbone signal.
2. bus communication according to claim 1, which is characterized in that described in the conversion of the second bus transfer of the control
The second signal obtained after Wishbone signal, comprising:
Transmission control parameters are obtained, and control second signal described in second bus transfer according to the transmission control parameters
Configured transmission；Wherein, the configured transmission includes frequency and data width.
3. bus communication according to claim 2, which is characterized in that the acquisition transmission control parameters, comprising:
Destination register value is read, determines the transmission control ginseng according to the corresponding relationship of the configured transmission and register value
Number.
4. bus communication according to claim 3, which is characterized in that further include:
User's control instruction is received, executes the user's control instruction to adjust the destination register value.
5. bus communication according to claim 1, which is characterized in that passed in the first bus of the acquisition according to first
First signal of defeated agreement transmission, comprising:
Obtain the ESPI signal transmitted in ESPI bus according to ESPI protocol.
6. bus communication according to claim 1, which is characterized in that further include:
According to the Corresponding matching relationship of the Wishbone agreement and third transport protocol, the Wishbone signal is turned
It changes；
Control third bus transfer converts the third signal obtained after the Wishbone signal；Wherein, third transmission association
View, first transport protocol, second transport protocol and the Wishbone agreement are different.
7. bus communication according to any one of claims 1 to 6, which is characterized in that according to Wishbone agreement with
The Corresponding matching relationship of first transport protocol converts first signal, obtains Wishbone signal, comprising:
According to the Corresponding matching relationship of the Wishbone agreement and first transport protocol, first signal is turned
It changes, and transmits the Wishbone signal in Wishbone bus.
8. a kind of bus communicating devices characterized by comprising
First signal acquisition module, for obtaining the first signal transmitted in the first bus according to the first transport protocol；
First signal conversion module is right for the Corresponding matching relationship according to Wishbone agreement and first transport protocol
First signal is converted, and Wishbone signal is obtained；
Second signal conversion module, it is right for the Corresponding matching relationship according to the Wishbone agreement and the second transport protocol
The Wishbone signal is converted；Wherein, first transport protocol, the Wishbone agreement and second transmission
Agreement is different；
Second signal transmission module converts the second letter obtained after the Wishbone signal for controlling the second bus transfer
Number.
9. a kind of bus communication device characterized by comprising
CPLD, the first bus port and the second bus port, and the CPLD respectively with first bus port and described
Two lines bus port is connected；
Wherein, first bus port, for being connect with external first bus；
Second bus port, for being connect with external second bus；
The CPLD, for obtaining the first signal transmitted in the first bus according to the first transport protocol；It is assisted according to Wishbone
The Corresponding matching relationship of view and first transport protocol, converts first signal, obtains Wishbone signal；It presses
According to the Corresponding matching relationship of the Wishbone agreement and the second transport protocol, the Wishbone signal is converted；Its
In, first transport protocol, the Wishbone agreement and second transport protocol are different；Control the second bus
The second signal obtained after the Wishbone signal is converted in transmission.
10. a kind of readable storage medium storing program for executing, which is characterized in that be stored with computer program, the meter on the readable storage medium storing program for executing
It is realized when calculation machine program is executed by processor as described in any one of claim 1 to 7 the step of bus communication.
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