CN210199751U - CANFD bus interface card with MiniPCIE interface - Google Patents
CANFD bus interface card with MiniPCIE interface Download PDFInfo
- Publication number
- CN210199751U CN210199751U CN201921726995.4U CN201921726995U CN210199751U CN 210199751 U CN210199751 U CN 210199751U CN 201921726995 U CN201921726995 U CN 201921726995U CN 210199751 U CN210199751 U CN 210199751U
- Authority
- CN
- China
- Prior art keywords
- interface
- controller
- canfd
- canfd2
- canfd1
- 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.)
- Expired - Fee Related
Links
- 238000002955 isolation Methods 0.000 claims abstract description 30
- 230000010354 integration Effects 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Landscapes
- Power Sources (AREA)
Abstract
The utility model discloses a CANFD bus interface card with MiniPCie interface, including microcontroller MCU, CANFD1 controller, CANFD2 controller, CANFD1 receiving and dispatching isolation circuit and CANFD2 receiving and dispatching isolation circuit, microcontroller MCU connects CANFD1 controller, CANFD2 controller and high-speed USB controller respectively, and CANFD1 controller connects CANFD1 receiving and dispatching isolation circuit, and CANFD1 receiving and dispatching isolation circuit connects terminal resistance dial switch and first filter circuit respectively, and first filter circuit passes through first protection circuit and connects first CANFD interface, CANFD2 controller connects CANFD2 receiving and dispatching isolation circuit, and CANFD2 receiving and dispatching isolation circuit connects terminal resistance dial switch and second filter circuit respectively, and second filter circuit connects second CANFD interface through second protection circuit, the USB controller still connects the miniPCie interface. The utility model discloses make things convenient for embedded mainboard integration, for embedded computer, the computer development CANFD bus application of reinforcement computer etc. facilitates, also provides many interfaces for the integrated CANFD interface card of other computers and selects.
Description
Technical Field
The utility model relates to an interface card specifically is a CANFD bus interface card with MiniPCie interface.
Background
Because a computer does not integrate a CANFD bus interface, CANFD bus application software is developed on the computer or CANFD bus equipment is debugged, and external interfaces of the computer, such as a USB interface, an Ethernet interface and a serial port, are required to be used for expanding the CANFD bus interface. Therefore, a CANFD bus interface card which is small in size and can be integrated on an industrial control mainboard is developed, and integration and installation can be facilitated.
At present, all modules used for expanding a CANFD bus interface of a computer are external interfaces of the computer, such as a USB interface, an Ethernet interface and a serial port, and the interfaces are only suitable for external connection of the computer and are inconvenient to integrate in a case. The external data line is connected, and the interface also becomes flexible easily, and inconvenient equipment removes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a CANFD bus interface card with MiniPCie interface to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a CANFD bus interface card with a MiniPCie interface comprises a microcontroller MCU, a CANFD1 controller, a CANFD2 controller, a CANFD1 transceiving isolation circuit and a CANFD2 transceiving isolation circuit, wherein the microcontroller MCU is respectively connected with a CANFD1 controller, a CANFD2 controller and a high-speed USB controller, a CANFD1 controller is connected with a CANFD1 transceiving isolation circuit, the CANFD1 transceiving isolation circuit is respectively connected with a terminal resistance dial switch and a first filter circuit, the first filter circuit is connected with a first CANFD interface through a first protection circuit, the CANFD2 controller is connected with a CANFD2 transceiving isolation circuit, the CANFD2 transceiving isolation circuit is respectively connected with a terminal resistance dial switch and a second filter circuit, the second filter circuit is connected with a second CANFD interface through a second protection circuit, and the high-speed USB controller is further connected with an ipncie interface.
As a further aspect of the present invention: the system also comprises an I/0 interface connected with the microcontroller MCU.
As a further aspect of the present invention: the I/O interface is connected with a status indicator lamp.
As a further aspect of the present invention: the microcontroller MCU adopts a 32-bit ARM processor.
As a further aspect of the present invention: the MiniPCie interface provides a direct-current 3.3V power supply, provides a working power supply for the microcontroller MCU, and provides a power supply for the CANFD1 isolation transceiver circuit and the CANFD2 isolation transceiver circuit after boosting 3.3V to 5V.
As a further aspect of the present invention: the termination resistance dial switch may enable termination resistances of the first CANFD interface and the second CANFD interface.
As a further aspect of the present invention: the first protection circuit and the second protection circuit comprise overcurrent and overvoltage protection circuits.
As a further aspect of the present invention: the CANFD1 controller, the CANFD2 controller and the high-speed USB controller are all integrated into a microcontroller MCU.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the integrated USB communication protocol stack of interface card firmware, utilize USB interface and the computer communication of MiniPCie interface, microcontroller MCU is as the data link of CANFD and USB, realize two-way retransmission, reach the purpose of computer transceiver CANFD bus data, can support Windows, Linux, Android operating system, be applied to X86 framework mainboard and ARM framework mainboard, make things convenient for embedded mainboard integration, for embedded computer, the development CANFD bus application of ruggedized computer etc. facilitates, also provide many interfaces for the integrated CANFD interface card of other computers and select.
Drawings
Fig. 1 is a schematic block circuit diagram of a CANFD bus interface card with minipci interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a CANFD bus interface card with minipci interface includes a microcontroller MCU, a CANFD1 controller, a CANFD2 controller, a CANFD1 transceiving isolation circuit, and a CANFD2 transceiving isolation circuit, where the microcontroller MCU is connected to a CANFD1 controller, a CANFD2 controller, and a high-speed USB controller, a CANFD1 controller is connected to a CANFD1 transceiving isolation circuit, the CANFD1 transceiving isolation circuit is connected to a terminal resistor dial switch and a first filter circuit, the first filter circuit is connected to a first CANFD interface through a first protection circuit, the CANFD2 controller is connected to a CANFD2 transceiving isolation circuit, the CANFD2 transceiving isolation circuit is connected to a terminal resistor dial switch and a second filter circuit, the second filter circuit is connected to a second CANFD interface through a second protection circuit, and the high-speed USB controller is further connected to a minipci interface. The first protection circuit and the second protection circuit comprise overcurrent and overvoltage protection circuits.
The CANFD1 controller, the CANFD2 controller and the high-speed USB controller are all integrated into a microcontroller MCU.
The utility model discloses CANFD bus interface card still includes the I/0 interface of being connected with microcontroller MCU, the IO interface is used for driving status indicator, microcontroller MCU adopts 32 position ARM treater.
The two paths of CANFD interfaces can be used for connecting 2 CANFD bus networks, the terminal resistor dial switch can enable the terminal resistors of the first CANFD interface and the second CANFD interface, and the status indicator lamp can indicate the running state of a microcontroller MCU program and the data receiving and transmitting state of a CANFD bus.
The MiniPCie interface provides a direct-current 3.3V power supply, provides a working power supply for the microcontroller MCU, and provides a power supply for the CANFD1 isolation transceiver circuit and the CANFD2 isolation transceiver circuit after boosting 3.3V to 5V.
The utility model discloses the integrated USB communication protocol stack of interface card firmware, utilize USB interface and the computer communication of MiniPCie interface, microcontroller MCU is as the data link of CANFD and USB, realize two-way retransmission, reach the purpose of computer transceiver CANFD bus data, can support Windows, Linux, Android operating system, be applied to X86 framework mainboard and ARM framework mainboard, make things convenient for embedded mainboard integration, for embedded computer, the development CANFD bus application of ruggedized computer etc. facilitates, also provide many interfaces for the integrated CANFD interface card of other computers and select.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The CANFD bus interface card with the MiniPCie interface is characterized by comprising a microcontroller MCU, a CANFD1 controller, a CANFD2 controller, a CANFD1 transceiving isolation circuit and a CANFD2 transceiving isolation circuit, wherein the microcontroller MCU is respectively connected with a CANFD1 controller, a CANFD2 controller and a high-speed USB controller, the CANFD1 controller is connected with a CANFD1 transceiving isolation circuit, the CANFD1 transceiving isolation circuit is respectively connected with a terminal resistance dial switch and a first filter circuit, the first filter circuit is connected with a first CANFD interface through a first protection circuit, the CANFD2 controller is connected with a CANFD2 transceiving isolation circuit, the CANFD2 transceiving isolation circuit is respectively connected with a terminal resistance dial switch and a second filter circuit, the second filter circuit is connected with a second CANFD interface through a second protection circuit, and the high-speed USB controller is further connected with a minipcine interface.
2. The CANFD bus interface card with MiniPCIe interface of claim 1, further comprising an I/0 interface to the microcontroller MCU.
3. The CANFD bus interface card with MiniPCIe interface of claim 2, wherein the I/O interface is connected to a status indicator light.
4. The CANFD bus interface card with MiniPCIe interface of claim 3, wherein the microcontroller MCU employs a 32-bit ARM processor.
5. The CANFD bus interface card with MiniPCIe interface of claim 4, wherein the MiniPCIe interface provides a dc 3.3V power supply, provides operating power supply for the microcontroller MCU, and provides power supply for the CANFD1 isolation transceiver circuit and the CANFD2 isolation transceiver circuit after boosting 3.3V to 5V.
6. The CANFD bus interface card with MiniPCIe interface of any of claims 1-5, wherein the termination resistance dial switch enables termination resistances of the first CANFD interface and the second CANFD interface.
7. The CANFD bus interface card with MiniPCIe interface of claim 6, wherein the first and second protection circuits comprise overcurrent, overvoltage protection circuits.
8. The CANFD bus interface card with MiniPCIe interface of claim 7, wherein the CANFD1 controller, CANFD2 controller and high speed USB controller are all integrated into a microcontroller MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726995.4U CN210199751U (en) | 2019-10-15 | 2019-10-15 | CANFD bus interface card with MiniPCIE interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726995.4U CN210199751U (en) | 2019-10-15 | 2019-10-15 | CANFD bus interface card with MiniPCIE interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210199751U true CN210199751U (en) | 2020-03-27 |
Family
ID=69878655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921726995.4U Expired - Fee Related CN210199751U (en) | 2019-10-15 | 2019-10-15 | CANFD bus interface card with MiniPCIE interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210199751U (en) |
-
2019
- 2019-10-15 CN CN201921726995.4U patent/CN210199751U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210199751U (en) | CANFD bus interface card with MiniPCIE interface | |
| CN202798652U (en) | Signal conversion circuit and interface switching equipment | |
| CN205103813U (en) | SpaceWire bus node communication module based on PCI interface | |
| CN205091734U (en) | SpaceWire bus node communication module based on CPCI interface | |
| CN112346403A (en) | Extend module connecting circuit | |
| CN209570926U (en) | A kind of signal converting module and multi-channel interface switching device | |
| CN204597988U (en) | The AFDX terminal test equipment of Based PC PCI interface | |
| CN209842613U (en) | Data transmission device | |
| CN217037179U (en) | Communication circuit and communication board | |
| CN206835123U (en) | A kind of RS485 automatic receiving-transmitting switching circuits | |
| CN202939599U (en) | ARINC429 bus test equipment | |
| CN211720677U (en) | Thing networking WIFI module development circuit | |
| CN210986125U (en) | Embedded industrial control all-in-one machine | |
| CN205210536U (en) | Digital output module of redundant output based on special CPU | |
| CN204597989U (en) | Based on the AFDX terminal test equipment of CPCI interface | |
| CN211015073U (en) | CAN bus interface equipment | |
| CN204440391U (en) | A kind of full isolated form RS485 bus transceiver | |
| CN103414620A (en) | Double-channel CAN simulation system based on CAN buses | |
| CN208905017U (en) | A kind of communication master-salve station mainboard based on Cortex-M3 processor | |
| CN215117503U (en) | Bus manager BA host machine for MVB communication of train | |
| CN206992448U (en) | Switching FPC general modules | |
| CN220208258U (en) | Circuit for realizing conversion from network port to serial port | |
| CN108931953A (en) | A kind of electric machine control system based on EtherCAT bus | |
| CN204652732U (en) | A kind of environment adjustment system | |
| CN112148321A (en) | Anti-interference upgrading system and method for automobile intelligent electronic equipment microcontroller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 |