CN109218299A - A kind of PCIe based on VPX framework and CAN bus conversion equipment - Google Patents
A kind of PCIe based on VPX framework and CAN bus conversion equipment Download PDFInfo
- Publication number
- CN109218299A CN109218299A CN201811029324.2A CN201811029324A CN109218299A CN 109218299 A CN109218299 A CN 109218299A CN 201811029324 A CN201811029324 A CN 201811029324A CN 109218299 A CN109218299 A CN 109218299A
- Authority
- CN
- China
- Prior art keywords
- vpx
- chip
- pcie
- bus
- programmable logic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
Abstract
The present invention provides a kind of PCIe based on VPX framework and CAN bus conversion equipment, it is related to communication bus protocol conversion equipment technical field, comprising: programmable logic device, bridging chip, 3U-VPX connector, electrical level transferring chip, CAN controller, photoelectric isolated chip and CAN transceiver；Programmable logic device is Local Bus agreement and CAN decoding circuit；Bridging chip is PCIe and Local Bus protocol conversion circuitry；3U-VPX connector includes PCIe standard interface；Programmable logic device is connect by bridging chip with 3U-VPX connector, programmable logic device also passes through electrical level transferring chip and is connected with CAN controller, CAN controller, photoelectric isolated chip and CAN transceiver are sequentially connected with, and CAN transceiver is connect with 3U-VPX connector.The technical solution realizes the conversion of PCIe and CAN bus agreement based on VPX framework, to alleviate the difficult technical problem of the bus protocol conversion of the existing technology based on VPX framework.
Description
Technical field
The present invention relates to communication bus protocol conversion equipment technical field, more particularly, to a kind of based on VPX framework
PCIe and CAN bus conversion equipment.
Background technique
Currently, VPX bus is high-speed serial bus standard of new generation, there are higher transmission rate and higher back panel straps
Width is suitble to high speed signal plate to the connection between plate.PXI express technology is introduced in PXI, significantly improves bus bar
It is wide.PCI express is integrated into PXI standard by PXI, can satisfy more application demands.PCI-express(is referred to as
PCIe a kind of high-speed serial bus for PCI, PCI-X and AGP bus standard proposition that) to be INTEL substituted in 2001.Mesh
Before, PCIe bus has been widely used for all trades and professions, including commercial PC machine, aerospace, industrial automation etc..PCI
Express technology is desirably integrated into backboard, while maintaining the backwards compatibility with existing system.CAN bus is as a kind of skill
Art is advanced, high reliablity, perfect in shape and function, telecommunication network communication control of reasonable cost, be widely applied to it is each from
In dynamic networked control systems.CAN full name is " Controller Area Network ", i.e. controller LAN, is to apply in the world
One of widest fieldbus.CAN bus is a kind of serial communication bus of more host node modes, with incomparable excellent
More property.In realizing process of the present invention, inventor has found that existing PCIe and CAN bus conversion equipment exist and is based on VPX framework
The difficult technical problem of bus protocol conversion.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of PCIe based on VPX framework and CAN bus conversion equipment,
To alleviate the difficult technical problem of the bus protocol conversion existing in the prior art based on VPX framework.
The embodiment of the invention provides a kind of PCIe based on VPX framework and CAN bus conversion equipment, which is characterized in that
It include: programmable logic device, bridging chip, 3U-VPX connector, electrical level transferring chip, CAN controller, photoelectric isolated chip
And CAN transceiver；
Programmable logic device is Local Bus agreement and CAN decoding circuit；Bridging chip is PCIe and Local Bus agreement
Conversion circuit；3U-VPX connector includes PCIe standard interface；
Programmable logic device is connect by bridging chip with 3U-VPX connector, and programmable logic device also passes through level conversion
Chip is connected with CAN controller, and CAN controller, photoelectric isolated chip and CAN transceiver are sequentially connected with, CAN transceiver with
The connection of 3U-VPX connector.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, 3U-
VPX connector includes power supply P0 interface, board resets P1 interface and CAN signal draws P2 interface；
Power supply P0 interface is connect with power conversion chip, and board resets P1 interface and connect with mainboard reset circuit, and CAN signal is drawn
P2 interface is connect with CAN transceiver out.
Further, it in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, can compile
Journey logical device is FPGA module or CPLD module.
Further, it in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, can compile
Journey logical device model EP3C5F256 I7N.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, level
Conversion chip model SN74LVC4245APW.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, bridge joint
Chip model is PEX8311AA66BCF.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, CAN
Controller is SJA1000T controller.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, photoelectricity
Isolating chip model HCPL0631.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, CAN
Transceiver is TJA1040T transceiver.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, 3U-
VPX connector is VPX RT2 connector.
The embodiment of the present invention brings following the utility model has the advantages that the PCIe based on VPX framework provided by the embodiment of the present invention
With CAN bus conversion equipment, comprising: programmable logic device, bridging chip, 3U-VPX connector, electrical level transferring chip, CAN
Controller, photoelectric isolated chip and CAN transceiver；Programmable logic device is Local Bus agreement and CAN decoding circuit；Bridge
Connecing chip is PCIe and Local Bus protocol conversion circuitry；3U-VPX connector includes PCIe standard interface；Programmable logic device
Part is connect by bridging chip with 3U-VPX connector, and programmable logic device also passes through electrical level transferring chip and CAN controller
It is connected, CAN controller, photoelectric isolated chip and CAN transceiver are sequentially connected with, and CAN transceiver is connect with 3U-VPX connector.
The technical solution is matched by using CAN circuit with programmable logic device, realizes PCIe and CAN based on VPX framework
The conversion of bus protocol is asked to alleviate the difficult technology of the bus protocol conversion of the existing technology based on VPX framework
Topic.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation of the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment
Figure.
Icon:
100- programmable logic device；200- bridging chip；300-3U-VPX connector；400- electrical level transferring chip；510-CAN
Controller；520- photoelectric isolated chip；530-CAN transceiver.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some 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.
Currently, CAN bus is as a kind of technologically advanced, high reliablity, perfect in shape and function, telecommunication network of reasonable cost communication
Control mode has been widely applied in each automatic control system.Although CAN bus is a kind of the serial of multiple host pattern
Communication bus, it but has incomparable superiority.It is full that inventor has found that existing PCIe and CAN bus conversion equipment are difficult to
There is the difficult technical problem of the bus protocol conversion based on VPX framework, be based on this, the present invention is real in the demand of sufficient developer
A kind of PCIe based on VPX framework and CAN bus conversion equipment for applying example offer, may be implemented the PCIe based on VPX framework
With the conversion of CAN bus agreement.
Referring to Fig. 1, the knot of PCIe and CAN bus conversion equipment provided by the embodiment of the present invention based on VPX framework
Structure schematic diagram.PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, comprising: programmable logic
Device 100, bridging chip 200,3U-VPX connector 300, electrical level transferring chip 400, CAN controller 510, photoelectric isolated chip
520 and CAN transceiver 530.
In PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, programmable logic device
For Local Bus agreement and CAN decoding circuit, the decoding of Local Bus agreement and CAN controller is realized；Further, this hair
In the PCIe and CAN bus conversion equipment based on VPX framework that bright embodiment provides, programmable logic device be FPGA module or
CPLD module.
Further, it in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, can compile
Journey logical device model EP3C5F256 I7N.
In PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, bridging chip PCIe
With Local Bus protocol conversion circuitry, realize that PCIe is converted to the chip of Local Bus agreement；Further, the present invention is implemented
In the PCIe and CAN bus conversion equipment based on VPX framework that example provides, bridging chip model PEX8311AA66BCF.
In PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, 3U-VPX connector packet
Include PCIe standard interface；Further, the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment
In, 3U-VPX connector is VPX RT2 connector.3U-VPX connector uses modular VPX RT2 connector, the connection
Device includes controllable impedance, and low insertion loss, at highest 6.25Gbaud, crosstalk is less than 3%.Its unique 7 row RT2 connector,
Together with cascade block, realize that 46 module of VITA and back plate design, PCIe bussing technique are quoted by VPX framework.
In PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, programmable logic device
It is connect by bridging chip with 3U-VPX connector, programmable logic device also passes through electrical level transferring chip and CAN controller phase
Connection, further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, level conversion
Chip model is SN74LVC4245APW, realizes 5V and the 3.3V level conversion of CAN controller and programmable logic device, such as two
Person's level is consistent, then without conversion.
In PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, CAN controller, photoelectricity
Isolating chip is sequentially connected with CAN transceiver, and CAN transceiver is connect with 3U-VPX connector.CAN bus and extraneous CAN bus
It when device talk, needs by CAN transceiver, and completes necessary level conversion and signal transmission.Power supply conversion portion electricity
Road is realized specifically, the P0 connector of VPX is provided as interface board 5V and 3.3V power supply, which is conducive to switch
The investigation that power supply goes wrong, and reduce this interface and power supply aspect failure occur to the adverse effect of mainboard.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment；Photoelectricity
Isolating chip model HCPL0631；CAN transceiver is TJA1040T transceiver, CAN bus transponder chip TJA1040T, branch
Hold high-speed CAN and low speed CAN, have the characteristics that differential receiver have wider common mode range can electromagnetism interference EMI, chip
Realize that the CAN interface interconnection of this interface module and external equipment communicates.CAN controller is SJA1000T controller.CAN bus control
Device chip SJA1000T processed is independent CAN controller, has two kinds of operation modes of BasicCAN and PeliCAN, and have spirit
Processor interface living, allows to access most microprocessor and microcontroller, and CAN bit frequency is up to 1Mbit/s, covers
All ranges of bit frequency, including high-speed applications are covered.The technical solution passes through programming device, bridgt circuit and level conversion
Circuit realizes the conversion of PCIe bus and CAN bus.
Further, in the PCIe provided in an embodiment of the present invention based on VPX framework and CAN bus conversion equipment, 3U-
VPX connector includes power supply P0 interface, board resets P1 interface and CAN signal draws P2 interface；P0 interface of powering turns with power supply
Chip connection is changed, board resets P1 interface and connect with mainboard reset circuit, and CAN signal is drawn P2 interface and connect with CAN transceiver.
In PCIe and CAN bus conversion equipment provided by the embodiment of the present invention based on VPX framework, with mainboard communication
PCIe bus is introduced by PXI e interface, after PCIe bus is converted to local bus (Local Bus) via bridging chip, via electricity
Flat conversion chip is connect with CAN controller, and CAN bus signal arrives CAN bus transceiver after being isolated via photoelectric isolating circuit, most
CAN signal is connected on the customized point of PXIE interface afterwards, is completed and external CAN bus device talk.Compared with prior art,
Device provided by the embodiment of the present invention uses bridging chip and programmable logic device, realizes PCIE bus and CAN bus
Conversion, while providing higher reliability, have circuit simple, function realizes flexible feature.
PCIe and CAN bus conversion equipment provided by the embodiment of the present invention based on VPX framework, comprising: programmable to patrol
Collect device, bridging chip, 3U-VPX connector, electrical level transferring chip, CAN controller, photoelectric isolated chip and CAN transceiver；
Programmable logic device is Local Bus agreement and CAN decoding circuit；Bridging chip is PCIe and Local Bus protocol conversion
Circuit；3U-VPX connector includes PCIe standard interface；Programmable logic device is connected by bridging chip and 3U-VPX connector
Connect, programmable logic device also passes through electrical level transferring chip and is connected with CAN controller, CAN controller, photoelectric isolated chip with
CAN transceiver is sequentially connected with, and CAN transceiver is connect with 3U-VPX connector.The technical solution by using CAN circuit with can compile
Journey logical device matches, and the conversion of PCIe and CAN bus agreement based on VPX framework is realized, to alleviate existing skill
The difficult technical problem of the existing bus protocol conversion based on VPX framework of art.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of PCIe based on VPX framework and CAN bus conversion equipment characterized by comprising programmable logic device,
Bridging chip, 3U-VPX connector, electrical level transferring chip, CAN controller, photoelectric isolated chip and CAN transceiver；
The programmable logic device is Local Bus agreement and CAN decoding circuit；The bridging chip is PCIe and Local
Bus protocol conversion circuitry；The 3U-VPX connector includes PCIe standard interface；
The programmable logic device is connect by the bridging chip with the 3U-VPX connector, the programmable logic device
Part is also connected by the electrical level transferring chip with the CAN controller, the CAN controller, the photoelectric isolated chip
It is sequentially connected with the CAN transceiver, the CAN transceiver is connect with the 3U-VPX connector.
2. the apparatus according to claim 1, which is characterized in that the 3U-VPX connector includes power supply P0 interface, board
It resets P1 interface and CAN signal draws P2 interface；
The power supply P0 interface is connect with power conversion chip, and the board resets P1 interface and connect with mainboard reset circuit, institute
CAN signal extraction P2 interface is stated to connect with CAN transceiver.
3. the apparatus according to claim 1, which is characterized in that the programmable logic device is FPGA module or CPLD mould
Block.
4. device according to claim 1 or 3, which is characterized in that the programmable logic device model EP3C5F256
I7N。
5. the apparatus according to claim 1, which is characterized in that the electrical level transferring chip model
SN74LVC4245APW。
6. the apparatus according to claim 1, which is characterized in that the bridging chip model PEX8311AA66BCF.
7. the apparatus according to claim 1, which is characterized in that the CAN controller is SJA1000T controller.
8. the apparatus according to claim 1, which is characterized in that the photoelectric isolated chip model HCPL0631.
9. the apparatus according to claim 1, which is characterized in that the CAN transceiver is TJA1040T transceiver.
10. the apparatus according to claim 1, which is characterized in that the 3U-VPX connector is VPX RT2 connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029324.2A CN109218299A (en) | 2018-09-05 | 2018-09-05 | A kind of PCIe based on VPX framework and CAN bus conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029324.2A CN109218299A (en) | 2018-09-05 | 2018-09-05 | A kind of PCIe based on VPX framework and CAN bus conversion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109218299A true CN109218299A (en) | 2019-01-15 |
Family
ID=64986825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811029324.2A Withdrawn CN109218299A (en) | 2018-09-05 | 2018-09-05 | A kind of PCIe based on VPX framework and CAN bus conversion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109218299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350916A (en) * | 2020-09-24 | 2021-02-09 | 天津市英贝特航天科技有限公司 | PCIE low-frequency optical fiber bridging system and method based on FPGA |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201163783Y (en) * | 2007-12-18 | 2008-12-10 | 杭州东信金融技术服务有限公司 | Multi-serial port card based on CAN bus |
| CN204925719U (en) * | 2015-08-19 | 2015-12-30 | 北京立华莱康平台科技有限公司 | Signal conversion equipment and system |
| CN106407150A (en) * | 2016-08-26 | 2017-02-15 | 天津市英贝特航天科技有限公司 | 1553B bus protocol module based on COM-Express |
| CN106933165A (en) * | 2017-05-05 | 2017-07-07 | 天津市英贝特航天科技有限公司 | Method and equipment for multi-way switching value input and output |
| JP2017134475A (en) * | 2016-01-25 | 2017-08-03 | 株式会社東芝 | Computer system, and initial installation method of software |
-
2018
- 2018-09-05 CN CN201811029324.2A patent/CN109218299A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201163783Y (en) * | 2007-12-18 | 2008-12-10 | 杭州东信金融技术服务有限公司 | Multi-serial port card based on CAN bus |
| CN204925719U (en) * | 2015-08-19 | 2015-12-30 | 北京立华莱康平台科技有限公司 | Signal conversion equipment and system |
| JP2017134475A (en) * | 2016-01-25 | 2017-08-03 | 株式会社東芝 | Computer system, and initial installation method of software |
| CN106407150A (en) * | 2016-08-26 | 2017-02-15 | 天津市英贝特航天科技有限公司 | 1553B bus protocol module based on COM-Express |
| CN106933165A (en) * | 2017-05-05 | 2017-07-07 | 天津市英贝特航天科技有限公司 | Method and equipment for multi-way switching value input and output |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350916A (en) * | 2020-09-24 | 2021-02-09 | 天津市英贝特航天科技有限公司 | PCIE low-frequency optical fiber bridging system and method based on FPGA |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205353873U (en) | Consolidate notebook based on VPX framework | |
| CN105446930A (en) | Single selection end SPI (Serial Peripheral Interface) master-slave multi-machine bidirectional communication method | |
| CN107015507A (en) | A kind of central controller integrates extension system | |
| CN204145280U (en) | The multiple stage synchronous circuit of switching regulator power of alterating and direct current supply | |
| CN110362525A (en) | A kind of method, system and board for realizing Multi-serial port switching based on CPLD | |
| CN109218299A (en) | A kind of PCIe based on VPX framework and CAN bus conversion equipment | |
| CN107480085A (en) | Multiplex roles integrated test system | |
| CN104516850A (en) | Connecting method for modularized products, modularized products using method and family service bus for method | |
| CN109510750A (en) | A kind of circuit board, server and server network | |
| CN214042097U (en) | PLC serial port communication extension module capable of customizing protocol | |
| CN108170091A (en) | A kind of PLC controller, PLC controller group system | |
| CN209132754U (en) | A kind of DEU data exchange unit | |
| CN209860929U (en) | Communication bus structure | |
| CN106408506A (en) | Image acquisition platform, FMC daughter card and image processing system | |
| CN207882745U (en) | A kind of PLC controller, PLC controller group system | |
| CN207184485U (en) | A kind of optical module switching device and system | |
| CN108234262A (en) | A kind of data/address bus based on optical fiber transmission extends device and method | |
| CN105577415B (en) | Intelligent optical distribution network equipment | |
| CN209708602U (en) | Receive card pinboard and display system | |
| CN108228489A (en) | A kind of method that more network interface cards are connected based on OCP standards | |
| CN110518937A (en) | Junction cable and augmented reality system | |
| CN108156182A (en) | A kind of communication adapter board, communication forwarding method and communication adapting system | |
| CN1219261C (en) | Method and apparatus for plugging optical transcreceiving module internal E2 PROM for read broadband network device | |
| CN103529913B (en) | Communication equipment distributed system and backboard BASE bus self adaptation implementation method thereof | |
| CN109522265A (en) | A kind of DEU data exchange unit and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190115 |
|
| WW01 | Invention patent application withdrawn after publication |