CN109992552A - A kind of managing device and management method of IIC - Google Patents
A kind of managing device and management method of IIC Download PDFInfo
- Publication number
- CN109992552A CN109992552A CN201910285638.7A CN201910285638A CN109992552A CN 109992552 A CN109992552 A CN 109992552A CN 201910285638 A CN201910285638 A CN 201910285638A CN 109992552 A CN109992552 A CN 109992552A
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- iic
- cpld
- equipment
- managing device
- interface
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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
- G06F13/40—Bus structure
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
-
- 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
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0016—Inter-integrated circuit (I2C)
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Computer And Data Communications (AREA)
Abstract
The managing device of a kind of IIC provided herein, comprising: CPLD, the CPLD are established IIC from equipment and connect with communication main equipment and communication respectively by default I/O interface；The CPLD is used to obtain the data information of the IIC and is stored in default storage medium.Design by using independent CPLD as system IIC administrative center, manager of the CPLD as IIC, principal and subordinate's terminal device of link information exchange, the processing of information can be easily carried out using coded program inside CPLD, summarized, and the I/O port of CPLD supports most level, the equipment that other various varying levels can be connected, also facilitate tester to IIC communication test and Debug test.The application also provides the management method of IIC a kind of, has above-mentioned beneficial effect.
Description
Technical field
This application involves server field, in particular to the managing device and management method of a kind of IIC.
Background technique
In general server or the system of storage, iic bus uses very extensive.Iic bus only uses two letters
Number line, SCL and SDA, using the mechanism of master-slave communication, SCL is only issued by Master, and SDA is both-way communication, using specific
Protocol mode, by 7 bit address lines, the equipment that can support multiple Slave, with the more and more of IIC chip type are supported, in fact
Existing function is also more abundant, it is this it is simple, facilitate the bus of extension to be increasingly designed people to receive and use.But with skill
The development of art, the structure and topology of system become to become increasingly complex, and the management of system is also more difficult.Due to the main pipe of system
The IIC interface number for managing chip is limited, and may will affect the efficiency and matter of communication when the multiple Device of a Master carry
Amount, therefore, the cascade of the IIC of system is more and more, and topology becomes to become increasingly complex.
Therefore how the IIC problem of management in settlement server system or storage system is that those skilled in the art need
The technical issues of solution.
Summary of the invention
The purpose of the application is to provide the managing device and management method of a kind of IIC, solves IIC chip mistake in the prior art
In system caused by more the problem of iic bus difficult management.
In order to solve the above technical problems, the application provides the managing device of IIC a kind of, specific technical solution is as follows:
CPLD, the CPLD are established IIC from equipment and connect with communication main equipment and communication respectively by default I/O interface；
The CPLD is used to obtain the data information of the IIC and is stored in default storage medium.
Wherein, the default I/O interface is the default I/O interface for supporting hot plug.
Wherein, the default storage medium that the register analog that the default storage medium is the CPLD obtains.
Wherein, the main module and described communicate from equipment that the CPLD is simulated using logical code establish connection, utilize
The slave module and the communication main equipment that the logical code simulates establish connection.
Wherein, the CPLD includes external interface, and the external interface reads the data letter of the IIC for managing chip
Breath.
Wherein, the quantity of the I/O interface is corresponding with the iic bus quantity on the CPLD.
Wherein, the default storage medium is ROM.
The application also provides the management method of IIC a kind of, the managing device applied to IIC described above, comprising:
It receives communication main equipment respectively using CPLD and communicates the data information from the IIC of equipment；Wherein, the CPLD is logical
Default I/O interface is crossed to establish IIC with the communication main equipment and the communication from equipment and connect；
The default storage medium data information being stored on the CPLD.
The managing device of a kind of IIC provided herein, comprising: CPLD, the CPLD are distinguished by default I/O interface
IIC is established from equipment and is connect with communication main equipment and communication；The CPLD is used to obtain the data information of the IIC and is stored in
Default storage medium.
The application uses independent CPLD as the design of system IIC administrative center, and CPLD is as intermediate manager, connection
Principal and subordinate's terminal device of information interchange, the inside CPLD can easily carry out the processing of information using coded program, summarize, and CPLD
I/O port support most level, the equipment that other various varying levels can be directly connected to, also facilitate tester to IIC communicate into
Row test and Debug test.The application also provides the management method of IIC a kind of, has above-mentioned beneficial effect, no longer superfluous herein
It states.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, 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
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of the managing device of IIC provided by the embodiment of the present application；
Fig. 2 is a kind of management method flow chart of IIC provided by the embodiment of the present application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of the managing device of IIC provided by the embodiment of the present application, the pipe
Managing device includes:
CPLD, the CPLD are established IIC from equipment and connect with communication main equipment and communication respectively by default I/O interface；
The CPLD is used to obtain the data information of the IIC and is stored in default storage medium.
Communicating main equipment is usually BMC, and communicating from equipment may include register or other bottom chips etc..It needs
Bright, the application is using another CPLD as the managing device of IIC, and in non-used existing server system or storage system
CPLD module.CPLD (Complex Programmable Logic Device) is Complex Programmable Logic Devices, essence
It is large-scale integrated circuit, i.e. digital integrated electronic circuit, has that flexible in programming, integrated level be high, applied widely, design cost
Low, the advantages that design process is easy, using CPLD as the management device of IIC, without complicated programming process and design process
Convenient for the management to IIC, in addition, the high integration of CPLD is also convenient for being applied in server system or storage system.
CPLD manages the intermediate medium of topology as whole system IIC, and the equipment at connection communication principal and subordinate both ends, inside uses
Logical code simulates Master Dcvice or the Slave Dcvice of IIC, and arbitrary IO can be used and carry out IIC interface
Extension, can support more equipment.In application scenes, CPLD can also do summarizing and handling for some information in centre,
The information of intercommunication is stored in default storage medium, the reading and operation of other management modules can be supplied.It is right at this
It is not construed as limiting in default storage medium, such as the ROM etc. that can be obtained for the register analog of CPLD.
It should be noted that not all I/O interfaces can be connected with iic bus on CPLD, some interfaces need to pull up
It could use, usually keep high level mode, this interface usually can not be as the I/O interface being connected with iic bus.
Default I/O interface can be the default I/O interface for supporting hot plug, can reduce between chip chamber, plate and be isolated in IIC link
The use of chip.Isolating chip be commonly used in plate between it is anti-tampering, prevent the intermodule of different voltages using iic bus progress information
Low voltage chip receives the impacting with high pressure of high voltage chip when interaction, and the I/O interface of CPLD usually supports hot plug, then is not necessarily to
The impact for worrying high pressure, reduces the use of isolating chip.
It should be noted that the main module (i.e. " Master Module " in Fig. 1) that CPLD is simulated using logical code
Connection is established from equipment with communication, the slave module simulated using logical code is ((i.e. " Slave Module " in Fig. 1) and logical
News main equipment establishes connection.In other words, CPLD is equivalent to as the intermediate point between the existing master and slave equipment of communication, therefore is needed
Allow the master and slave equipment of communication to be connected respectively with from module and main module, that is, it is corresponding from module to remain communication main equipment, communicate from
Equipment corresponds to main module.Communication main equipment is " Master Device " in Fig. 1, and communicating from equipment is in Fig. 2
"Slave Device".However, main module and from module be not practical IIC opposite equip., its essence is by CPLD utilization patrol
The virtual bench that code simulation goes out is collected, but substantially, main module and the function that corresponding equipment can be played from module.Citing
For, by taking Fig. 1 as an example, it is assumed that Master Device1 is connected with Slave Device1, and pipe of the CPLD as IIC is added at this time
After managing medium, inside is respectively formed Master Module1 and Slave Module1, at this point, Master Module1 and Slave
Device1 is direct-connected, and Slave Module1 and Master Device1 is direct-connected, and passes through the interaction of information, Master Module1
It is available to contents such as the facility informations of Master Device1, Slave Module1 is also available to arrive Slave
The contents such as the facility information of Device1, when actually carrying out IIC communication, even if main equipment and from increasing CPLD between equipment,
The information exchange between two equipment is nor affected on, while CPLD can also obtain the data information of IIC, plays the pipe to IIC
Reason effect.
It can be existing it should be noted that being not construed as limiting herein for the concrete form and content of the data information of IIC
Any form of data information in IIC transmission process.
Preferably, which can also include external interface, and external interface reads the data letter of IIC for managing chip
Breath.Here managing chip generally refers to third-party chip, naturally it is also possible to for a certain main equipment that is connected with CPLD or from
Managing chip in equipment.When needing to read the data information of IIC using chips such as BMC, external interface progress can use
It reads.The type of external interface and interface standard are not construed as limiting herein, those skilled in the art are retouched in design the application
The interface of working standard can be reserved when the CPLD stated as external interface.
It should be noted that the quantity of I/O interface is corresponding with iic bus quantity on CPLD.Although in existing system
Iic bus quantity is more, but the scale of same CPLD can also increase accordingly according to the demand of iic bus, and few having is several
Ten pin, more even up to 300 pin, therefore CPLD can solve the count issue of iic bus in existing system completely, no
It must worry that the quantity of iic bus exceeds the processing capacity of CPLD.
The application is by realizing between centralized processing system and bottom chip using CPLD as the management medium of IIC
Communication, simplify the topological structure of IIC.Simultaneously because the CPLD used is strengthened as unified management device for IIC's
Telecommunication management improves the quality and efficiency of IIC communication.Compatible different electrical, timing requirements collection may be implemented by CPLD
At chip, more multi-communication devices can be extended.Further, it is set convenient for the exploitation for server apparatus and storage equipment
Meter.In addition, can directly detect the data information preset in storage medium in CPLD in equipment fault.Be conducive to service
The investigation and maintenance of problem in device system and storage system.
Referring to fig. 2, Fig. 2 is a kind of management method flow chart of IIC provided by the embodiment of the present application, and the application also provides
A kind of management method of IIC, the management method may include:
S101: receiving communication main equipment using CPLD respectively and communicates the data information from the IIC of equipment；
Wherein, the CPLD establishes IIC from equipment by default I/O interface and the communication main equipment and the communication and connects
It connects；
S102: the default storage medium data information being stored on the CPLD.
The received data information of CPLD predominantly communicates main equipment and communicates from the data interaction confidence between equipment, existing
Communicated in technology main equipment and communication from be between equipment it is direct-connected, cause IIC data circuit complicated, data information management ability
Difference.Data information is acquired by using CPLD, is stored, convenient for the number to IIC in storage system or server system
It is believed that breath is managed.In the process, CPLD is effectively equivalent to the terminal of an IIC data information.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For embodiment provide method and
Speech, since it is corresponding with the managing device of IIC that embodiment provides, so being described relatively simple, related place is referring to dress
Set part explanation.
Specific examples are used herein to illustrate the principle and implementation manner of the present application, and above embodiments are said
It is bright to be merely used to help understand the present processes and its core concept.It should be pointed out that for the ordinary skill of the art
For personnel, under the premise of not departing from the application principle, can also to the application, some improvement and modification can also be carried out, these improvement
It is also fallen into the protection scope of the claim of this application with modification.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Claims (8)
1. a kind of managing device of IIC characterized by comprising
CPLD, the CPLD are established IIC from equipment and connect with communication main equipment and communication respectively by default I/O interface；
The CPLD is used to obtain the data information of the IIC and is stored in default storage medium.
2. managing device according to claim 1, which is characterized in that the default I/O interface is to support presetting for hot plug
I/O interface.
3. managing device according to claim 1, which is characterized in that the default storage medium is the deposit of the CPLD
The default storage medium that device is simulated.
4. managing device according to claim 1, which is characterized in that the main mould that the CPLD is simulated using logical code
Block and described communicate from equipment establish connection, and the slave module simulated using the logical code and the communication main equipment are established
Connection.
5. managing device according to claim 1, which is characterized in that the CPLD includes external interface, described to external
Mouth reads the data information of the IIC for managing chip.
6. managing device according to claim 1, which is characterized in that on the CPLD quantity of the I/O interface with it is described
Iic bus quantity is corresponding.
7. managing device according to claim 3, which is characterized in that the default storage medium is ROM.
8. a kind of management method of IIC, the managing device applied to any one of the claim 1-7 IIC, which is characterized in that
Include:
It receives communication main equipment respectively using CPLD and communicates the data information from the IIC of equipment；Wherein, the CPLD passes through pre-
If I/O interface is established IIC from equipment and is connect with the communication main equipment and the communication；
The default storage medium data information being stored on the CPLD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285638.7A CN109992552A (en) | 2019-04-10 | 2019-04-10 | A kind of managing device and management method of IIC |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910285638.7A CN109992552A (en) | 2019-04-10 | 2019-04-10 | A kind of managing device and management method of IIC |
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| CN109992552A true CN109992552A (en) | 2019-07-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111124981A (en) * | 2019-11-29 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Management system and method for server I2C equipment |
| CN111813731A (en) * | 2020-06-11 | 2020-10-23 | 中国长城科技集团股份有限公司 | Method, device, server and medium for reading memory information |
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| CN102243619A (en) * | 2011-06-23 | 2011-11-16 | 天津光电通信技术有限公司 | FPGA (Field Programmable Gate Array)-based method for realizing multi-path I2C (Inter-Integrated Circuit) bus port expansion |
| CN105095139A (en) * | 2014-05-08 | 2015-11-25 | 中兴通讯股份有限公司 | Inter-integrated circuit system and data operation and transmission method thereof |
| CN105159860A (en) * | 2015-10-10 | 2015-12-16 | 上海斐讯数据通信技术有限公司 | Inter-integrated circuit (IIC) extended system and method |
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| CN102023953A (en) * | 2009-09-17 | 2011-04-20 | 研祥智能科技股份有限公司 | Control method of system having many inter-integrated circuit (I2C) buses |
| CN102243619A (en) * | 2011-06-23 | 2011-11-16 | 天津光电通信技术有限公司 | FPGA (Field Programmable Gate Array)-based method for realizing multi-path I2C (Inter-Integrated Circuit) bus port expansion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111124981A (en) * | 2019-11-29 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Management system and method for server I2C equipment |
| CN111124981B (en) * | 2019-11-29 | 2021-11-23 | 苏州浪潮智能科技有限公司 | Management system and method for server I2C equipment |
| CN111813731A (en) * | 2020-06-11 | 2020-10-23 | 中国长城科技集团股份有限公司 | Method, device, server and medium for reading memory information |
| CN111813731B (en) * | 2020-06-11 | 2022-10-25 | 中国长城科技集团股份有限公司 | Method, device, server and medium for reading memory information |
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Application publication date: 20190709 |