CN110365566B - Self-adaptive matching method for high-speed data communication bus - Google Patents
Self-adaptive matching method for high-speed data communication bus Download PDFInfo
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- CN110365566B CN110365566B CN201910560247.1A CN201910560247A CN110365566B CN 110365566 B CN110365566 B CN 110365566B CN 201910560247 A CN201910560247 A CN 201910560247A CN 110365566 B CN110365566 B CN 110365566B
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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
- H04L12/40052—High-speed IEEE 1394 serial bus
- H04L12/40078—Bus configuration
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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
- H04L12/4013—Management of data rate on the bus
- H04L12/40136—Nodes adapting their rate to the physical link properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
Abstract
The invention relates to a self-adaptive matching method of a high-speed data communication bus, which comprises the following two steps according to the characteristics of a high-speed signal transmission system: the first step is the reconfiguration of bottom layer link parameters and the resetting of the link working flow; secondly, carrying out handshake interaction again on the link relation of the link; the method and the device have the advantages that the link characteristics of the communication system are reset and configured, the system with the newly configured configuration effective can work quickly, the problems that link parameters cannot be modified in the operation process of the conventional high-speed transmission system, and the operation state cannot form a stable and dynamically configurable reliable operation state can be solved thoroughly, so that the effects that the operation state of the system can be dynamically configured, the operation state is stable and reliable after the link state is switched at will are achieved, the whole operation process is simple and easy, the operation period is short, the construction is reliable, and the connection speed is high.
Description
Technical Field
The invention relates to a self-adaptive matching method for a high-speed data communication bus, belonging to the technical field of high-speed serial data.
Background
The adaptive matching of the high-speed bus is widely applied in civil and commercial fields around the world, the application of the system in industrial control and communication neighborhood is the most extensive, parameter reconfiguration and link re-handshake of the high-speed communication system in the working process are always a technical difficulty, and the traditional adaptive matching process is completed during initialization, so that the process is complicated, and the fault locking state is easy to occur.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a high-speed data communication bus self-adaptive matching method, which realizes the dynamic resettable design of high-speed link communication through system parameter resetting and link handshake control, so that the system can flexibly modify various parameters according to the use requirements of users at any time.
The invention adopts the following technical scheme for solving the technical problems: the invention designs a self-adaptive matching method of a high-speed data communication bus, which is used for realizing the switching selection of link states by link equipment on two sides of a target high-speed data communication link and comprises the following steps:
step A, according to the intercommunication of the states of the link equipment at the two sides of the target high-speed data communication link, determining the states of each link to be selected corresponding to the target high-speed data communication link, obtaining link parameters respectively corresponding to the states of each link to be selected, and entering the step B;
b, creating a link state modification process corresponding to the target high-speed data communication link, and entering the step C;
step C, selecting a link state to be selected which does not participate in the operations from the step C to the step F from the link states to be selected, updating the link state to be selected as a link state to be switched, and entering the step D;
d, updating and loading the link parameters corresponding to the link state to be switched into a link state modification process, processing the loaded link parameters by the link state modification process, respectively configuring the link parameters on the two sides of the link equipment, and then entering the step E;
step E, controlling the resetting of the link equipment at the two sides, namely applying the state of a link to be switched to a target high-speed data communication link between the link equipment at the two sides, then starting the communication handshake processing between the link equipment at the two sides, and entering the step F;
step F, judging whether the link equipment on the two sides successfully handshake within the preset duration, if so, indicating that the target high-speed data communication link between the link equipment on the two sides is successfully switched to the link state to be switched for communication, and starting the service process of the system; otherwise, returning to the step C.
As a preferred technical scheme of the invention: in the step a, the method further includes performing combined coding on each link state to be selected, the link state to be selected, and a storage path of a link parameter corresponding to the link state to be selected, to obtain a unique identification code corresponding to the link state to be selected, and further to obtain a unique identification code corresponding to each link state to be selected;
in the step C, a unique identification code of the link state to be selected which does not participate in the operations from the step C to the step F is selected from unique identification codes corresponding to the link states to be selected respectively, and the unique identification code is updated to be used as the unique identification code of the link state to be switched;
in the step D, the unique identification code of the link state to be switched is analyzed, the storage path of the link parameter of the link state to be selected corresponding to the unique identification code is obtained, then the link parameter corresponding to the link state to be selected is obtained according to the storage path, the link parameter is updated and loaded into the link state modification process, and the link state modification process processes the loaded link parameter and respectively configures the link parameter to the link devices on both sides.
As a preferred technical scheme of the invention: and performing combined coding by using 16-system data aiming at the link state to be selected and the storage path of the link parameter corresponding to the link state to be selected to obtain the unique identification code corresponding to the link state to be selected.
As a preferred technical scheme of the invention: in the step A, if the link devices on both sides of the target high-speed data communication link know the states of the other side, the link states applicable to the link devices on both sides in the target high-speed data communication link are used as the states of the links to be selected; if the link devices on both sides of the target high-speed data communication link do not know the state of the other side, all link states corresponding to the target high-speed data communication link are used as the states of the links to be selected.
Compared with the prior art, the self-adaptive matching method for the high-speed data communication bus has the following technical effects that by adopting the technical scheme:
the invention designs a self-adaptive matching method of a high-speed data communication bus, which can thoroughly solve the problems that the prior high-speed transmission system can not modify link parameters in the operation process and the operation state can not form a stable and dynamically configurable reliable operation state, thereby achieving the effects that the operation state of the system can be dynamically configured, the operation state is stable and reliable after the link state is randomly switched, and the whole operation process is simple and easy, the operation period is short, the construction is reliable and the connection speed is high.
Drawings
FIG. 1 is a block diagram of a high-speed data communication bus adaptive matching method according to the present invention.
Detailed Description
The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.
The invention designs a high-speed data communication bus self-adaptive matching method, which is used for realizing the switching selection of link states by link equipment on two sides of a target high-speed data communication link, and in practical application, as shown in figure 1, the method specifically comprises the following steps.
And step A, determining the states of all links to be selected corresponding to the target high-speed data communication link according to the intercommunication of the states of the link equipment on the two sides of the target high-speed data communication link, and obtaining link parameters corresponding to the states of all the links to be selected respectively.
In practical application, if the link devices on both sides of the target high-speed data communication link know the states of the other side, the link states applicable to the link devices on both sides in the target high-speed data communication link are used as the states of the links to be selected; if the link devices on both sides of the target high-speed data communication link do not know the state of the other side, all link states corresponding to the target high-speed data communication link are used as the states of the links to be selected.
In practical application, for the link parameter corresponding to each link state to be selected, for example, the link state is S1、S2、S3、......SnThe link parameter corresponding to each link state is P1、P2、P3、......Pn。
And then, respectively aiming at each link state to be selected, aiming at the link state to be selected and the storage path of the link parameter corresponding to the link state to be selected, applying 16-system data to carry out combined coding to obtain the unique identification code corresponding to the link state to be selected, further obtaining the unique identification code corresponding to each link state to be selected, and then entering the step B.
And B, creating a link state modification process corresponding to the target high-speed data communication link, and entering the step C.
And C, selecting a unique identification code of the link state to be selected which does not participate in the operations from the step C to the step F from the unique identification codes corresponding to the link states to be selected respectively, updating the unique identification code as the unique identification code of the link state to be switched, and entering the step D.
Step D. unique to link state to be switchedAnalyzing the identification code, acquiring a storage path of the link parameter of the link state to be selected corresponding to the unique identification code, then acquiring the link parameter corresponding to the link state to be selected according to the storage path, and updating and loading the link parameter into a link state modification process, such as a link state S2Link parameter P of2Updating and loading the link state modification process, processing the loaded link parameters by the link state modification process, respectively configuring the link parameters to the link equipment on the two sides, and then entering the step E.
And E, controlling the link equipment on the two sides to reset, namely applying the state of the link to be switched to a target high-speed data communication link between the link equipment on the two sides, starting the communication handshake processing between the link equipment on the two sides, and entering the step F.
Step F, judging whether the link equipment on the two sides successfully handshake within the preset duration, if so, indicating that the target high-speed data communication link between the link equipment on the two sides is successfully switched to the link state to be switched for communication, and starting the service process of the system; otherwise, returning to the step C.
The invention designs a self-adaptive matching method of a high-speed data communication bus, which divides the whole method into two steps according to the characteristics of a high-speed signal transmission system: the first step is the reconfiguration of bottom layer link parameters and the resetting of the link working flow; secondly, carrying out handshake interaction again on the link relation of the link; the method and the device have the advantages that the link characteristics of the communication system are reset and configured, the system with the newly configured configuration effective can work quickly, the problems that link parameters cannot be modified in the operation process of the conventional high-speed transmission system, and the operation state cannot form a stable and dynamically configurable reliable operation state can be solved thoroughly, so that the effects that the operation state of the system can be dynamically configured, the operation state is stable and reliable after the link state is switched at will are achieved, the whole operation process is simple and easy, the operation period is short, the construction is reliable, and the connection speed is high.
The design method of the invention can be popularized and applied to the dynamic configuration application of all high-speed communication systems at present and in the future, and has great application prospect because a user may modify the operation parameters of equipment in the communication process, and the dynamic link parameter configuration method does not exist in the market at present.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (1)
1. A high-speed data communication bus self-adaptive matching method is used for realizing the switching selection of link states by link equipment on two sides of a target high-speed data communication link, and is characterized by comprising the following steps:
step A, according to the intercommunication existence of the states of link equipment at two sides of a target high-speed data communication link, determining each link state to be selected corresponding to the target high-speed data communication link, obtaining link parameters corresponding to each link state to be selected, then respectively carrying out combined coding on each link state to be selected, aiming at the link state to be selected and a storage path of the link parameters corresponding to the link state to be selected, obtaining a unique identification code corresponding to the link state to be selected, further obtaining a unique identification code corresponding to each link state to be selected, and entering the step B; the method comprises the steps that 16-system data are applied to carry out combined coding aiming at a link state to be selected and a storage path of a link parameter corresponding to the link state to be selected, and a unique identification code corresponding to the link state to be selected is obtained;
in the step a, if the link devices on both sides of the target high-speed data communication link know the states of the other side, the link state applicable to the link devices on both sides in the target high-speed data communication link is used as each link state to be selected; if the link devices at the two sides of the target high-speed data communication link do not know the state of the other side, taking all link states corresponding to the target high-speed data communication link as the states of all links to be selected;
b, creating a link state modification process corresponding to the target high-speed data communication link, and entering the step C;
c, selecting a unique identification code of the link state to be selected which does not participate in the operations from the step C to the step F from the unique identification codes corresponding to the link states to be selected respectively, updating the unique identification code as the unique identification code of the link state to be switched, and entering the step D;
d, analyzing the unique identification code of the link state to be switched, acquiring a storage path of the link parameter of the link state to be selected corresponding to the unique identification code, then acquiring the link parameter corresponding to the link state to be selected according to the storage path, updating and loading the link parameter into a link state modification process, processing the loaded link parameter by the link state modification process, respectively configuring the link parameter on the link equipment at two sides, and then entering the step E;
step E, controlling the resetting of the link equipment at the two sides, namely applying the state of a link to be switched to a target high-speed data communication link between the link equipment at the two sides, then starting the communication handshake processing between the link equipment at the two sides, and entering the step F;
step F, judging whether the link equipment on the two sides successfully handshake within the preset duration, if so, indicating that the target high-speed data communication link between the link equipment on the two sides is successfully switched to the link state to be switched for communication, and starting the service process of the system; otherwise, returning to the step C.
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