CN106980584A - A kind of USB turns the miniature integrated converter of CAN - Google Patents
A kind of USB turns the miniature integrated converter of CAN Download PDFInfo
- Publication number
- CN106980584A CN106980584A CN201710079781.1A CN201710079781A CN106980584A CN 106980584 A CN106980584 A CN 106980584A CN 201710079781 A CN201710079781 A CN 201710079781A CN 106980584 A CN106980584 A CN 106980584A
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- usb
- turns
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- converted
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 235000015429 Mirabilis expansa Nutrition 0.000 claims description 2
- 244000294411 Mirabilis expansa Species 0.000 claims description 2
- 235000013536 miso Nutrition 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 5
- 101100339482 Colletotrichum orbiculare (strain 104-T / ATCC 96160 / CBS 514.97 / LARS 414 / MAFF 240422) HOG1 gene Proteins 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010424 printmaking Methods 0.000 description 1
Classifications
-
- 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
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
Abstract
Turn the miniature integrated converter of CAN the invention discloses a kind of USB, on the basis of USB interface, the conversion circuit part that usb signal turns CAN signal is designed to miniature printed boards, on USB interface terminal, and CAN output signal lines are directly led out, 4 core connector interface modes are provided the user.Including：USB interface, USB turn CAN conversion printed board, cable and 4 core connector interfaces.USB interface is using the public mouth of USB A types, including four stitch VDD, DM, DP, GN)；USB turns the integrated printed board of CAN on USB interface, including usb signal is converted to SPI signal chip, SPI signal is converted to the binary code stream for meeting CAN agreement CAN controller, binary code stream is converted to the CAN transceiver of CAN differential signal, MCP2210 chips, MCP2510 chips and SN55HVD251 chips can be used respectively.Converter miniaturization is realized, facilitates user flexibility to use.
Description
Technical field
The invention belongs to field bus communication interface field, more particularly, to the communication converter and its interface of high integration
Designing technique.
Background technology
CAN is one of widest fieldbus of composition control LAN in electronic equipment, in order to be set to electronics
It is standby to be debugged, it is necessary to electronic equipment is connected on computer, and the communication interface that computer is used is mostly the general strings of USB
Row bus interface, so, it is necessary to using can be mutual by usb signal and CAN signal between electronic equipment and computer
The converter of conversion connects to realize communication.
Existing USB turn CAN converter use by conventional USB interface, cable, USB conversion circuit boards and
Interface is constituted, and its interface section is generally DB9 or binding post mode.
The subject matter of existing product be Interface Terminal in-convenience in use, if the form of binding post is, it is necessary to fixed；
If DB9 form, must be requested that the interface of the other end is also DB9.And in actual use, physical interface user is certainly
Oneself customizes, and particularly in the case where equipment volume requires less and less, the size of physical interface diminishes, and interface shape is different,
This just highlights the inconvenience that existing product is used.
The content of the invention
In view of the above-mentioned problems, the present invention, which proposes a kind of USB, turns the miniature integrated converter of CAN, the technical side of use
Case is as follows：
A kind of USB turns the miniature integrated converter of CAN, on the basis of USB physical interface, usb signal is turned into CAN total
The conversion circuit part of line signal is designed to miniature printed boards, on USB interface terminal, and the output signal of CAN
Line is directly led out, and provides the user 4 core connector interface modes.It is specifically included：USB interface, USB turn CAN conversion print
Making sheet, cable and 4 core connector interfaces.Described USB interface using the public mouth of USB-A types, including four stitch (VDD, DM, DP,
GND)；Described USB turns the integrated printed board of CAN and is converted to SPI signal on USB interface, including by usb signal
Chip, the CAN controller that SPI signal is converted to the binary code stream for meeting CAN agreement, binary code stream is converted to
The CAN transceiver of CAN differential signal, MCP2210 chips, MCP2510 chips and SN55HVD251 chips can be used respectively；
4 described core connector interfaces use the core connector H2544-04 of Du Pont 4, realize general connection.
Beneficial effects of the present invention：
(1) USB is turned to the circuit design of CAN signal into miniature printed boards, USB interface end is placed on, had
There is less physical size, realize the miniaturization of converter volume, be user-friendly.
(2) because lead-out terminal is the interface mode of 4 core connectors, it can directly be plugged on brassboard and carry out CAN
Communication, also directly can realize that USB is changed to the signal of CAN, switching device interface portion by user-defined form of terminal
It is divided into 4 core connector interface modes, interface has compatibility and flexibility well.
Brief description of the drawings
Fig. 1 is the design principle figure of the present invention；
Fig. 2 is the schematic circuit for the miniature integrated converter that USB of the present invention turns CAN.
Embodiment
The USB of the present invention turns the miniature integrated converter of CAN, by USB turn the circuit design of CAN signal into
Miniature printed boards, are positioned over USB interface end, and the output interface of simultaneous converter is the micro connector of only 4 leads, effectively
Ground reduces the physical size of converter, user is neatly selected interface mode according to the design of oneself.
The invention will be further described below in conjunction with the accompanying drawings.
Such as Fig. 1, integrated conversion printed board, cable and 4 cores of the present invention by USB interface, comprising IC1, IC2 and IC3 chip
Connector is constituted, and wherein USB interface is the standard USB-A type male interfaces for meeting USB2.0 agreements；Integrated conversion printed board peace
On USB terminals, comprising IC1 select MCP2210 chips, IC2 select MCP2510 chips, IC3 select SN55HVD251 cores
Piece, CAN interface uses the core connector H2544-04 of Du Pont 4.
The USB of wherein USB terminals and computer is joined directly together.Turn CAN in dashed box for the designed USB of the present invention
Integrated conversion printed board, IC1 is responsible for usb signal being converted into spi bus signal, and IC2 is responsible for spi bus signal being converted into symbol
The binary code stream of CAN agreement is closed, IC3 is responsible for binary code stream being converted into the differential signal of CAN.Output is about
1 meter of cable, is eventually connected on the core connector H2544-04 of Du Pont 4.
If Fig. 2 is the circuit catenation principle figure of the present invention, DM and DP signals are connected respectively in described USB interface
D- the and D+ pins of MCP2210 chips, by GP0, MISO, MOSI, SCK, GP6 pin of MCP2210 chips respectively with MCP2510
CS, SO, SI, SCK, the pin of chip are connected, and MCP2510 TXCAN and RXCAN and SN55HVD251 chips D and R are drawn
Pin is connected, and CANH, CANL pin by SN55HVD251 CANH, CANL pin respectively with 4 core connectors are connected.
In addition, MCP2510 OSC1, OSC2 pin connects ZTTCE20MT OSC1, OSC2 pin respectively.ZTTCE20MT
Oscillator signal is provided to MCP2510.
Converter USB ends are inserted to the USB of computer, the connection of 4 core connector interfaces needs the electronic equipment communicated.
When computer and electronic equipment are communicated, DM and DP signals are converted to SPI by chip MCP2210 in the incoming USB of computer
Signal is simultaneously sent to chip MCP2510；Chip MCP2510 is used to generate CAN frames and with binary code as CAN controller
The mode of stream issues chip SN55HVD251, and is parsed from chip SN55HVD251 reception binary code streams；Chip
SN55HVD251 realizes the transmitting-receiving of CAN signal as CAN transceiver, the conversion of completion binary code stream and differential signal,
The mutual conversion of computer USB universal serial bus signals and electronic equipment CAN signal is realized from this.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and optimal implementation effect
Really, non-essential technical characteristic can be increased and decreased according to actual needs, to meet the demand of different situations.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (8)
1. a kind of USB turns the miniature integrated converter of CAN, it is characterised in that USB interface, the USB connect including being sequentially connected turns
CAN conversion printed board, connector；The USB, which turns CAN conversion printed board, to be included usb signal being converted to SPI signal
Chip, SPI signal is converted to the CAN controller for the binary code stream for meeting CAN agreement, binary code stream is changed
For the CAN transceiver of CAN differential signal.
2. a kind of USB according to claim 1 turns the miniature integrated converter of CAN, it is characterised in that described by USB
The chip that signal is converted to SPI signal uses MCP2210 chips；Described be converted to SPI signal meets the two of CAN agreement
The CAN controller of system code stream uses MCP2510 chips；The CAN that binary code stream is converted to CAN differential signal
Transceiver uses SN55HVD251 chips.
3. a kind of USB according to claim 2 turns the miniature integrated converter of CAN, it is characterised in that in USB interface
DM and DP signals connect D- the and D+ pins of MCP2210 chips, GP0, MISO, MOSI, SCK, GP6 of MCP2210 chips respectively
Pin is connected with the CS of MCP2510 chips, SO, SI, SCK, pin respectively, by MCP2510 TXCAN and RXCAN with
D with the R pins of SN55HVD251 chips are connected, SN55HVD251 CANH, CANL pin respectively with 4 core connectors
CANH, CANL pin are connected.
4. a kind of USB according to claim 1 turns the miniature integrated converter of CAN, it is characterised in that the USB connects
Mouth is the standard USB-A type male interfaces for meeting USB2.0 agreements.
5. a kind of USB according to claim 1 turns the miniature integrated converter of CAN, it is characterised in that the USB turns
CAN is changed passes through cable connection between printed board and the connector.
6. a kind of USB according to claim 1 turns the miniature integrated converter of CAN, it is characterised in that the connector
For 4 core connectors.
7. a kind of USB according to claim 6 turns the miniature integrated converter of CAN, it is characterised in that 4 core connects
Device is connect using the core connector H2544-04 of Du Pont 4.
8. a kind of USB according to claim 1 turns the miniature integrated converter of CAN, it is characterised in that the connector
Equipment of the connection with CAN interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079781.1A CN106980584A (en) | 2017-02-15 | 2017-02-15 | A kind of USB turns the miniature integrated converter of CAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079781.1A CN106980584A (en) | 2017-02-15 | 2017-02-15 | A kind of USB turns the miniature integrated converter of CAN |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106980584A true CN106980584A (en) | 2017-07-25 |
Family
ID=59338609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710079781.1A Pending CN106980584A (en) | 2017-02-15 | 2017-02-15 | A kind of USB turns the miniature integrated converter of CAN |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106980584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3974997A1 (en) * | 2020-09-23 | 2022-03-30 | Shenzhen Lingfeng Intelligent Technology Co., Ltd. | A method of signal conversion, a device, an electronic device and a storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090240852A1 (en) * | 2008-03-20 | 2009-09-24 | Aten International Co., Ltd. | Uart/usb converting apparatus |
| CN202694039U (en) * | 2012-07-09 | 2013-01-23 | 四川九洲电器集团有限责任公司 | Adapter circuit |
-
2017
- 2017-02-15 CN CN201710079781.1A patent/CN106980584A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090240852A1 (en) * | 2008-03-20 | 2009-09-24 | Aten International Co., Ltd. | Uart/usb converting apparatus |
| CN202694039U (en) * | 2012-07-09 | 2013-01-23 | 四川九洲电器集团有限责任公司 | Adapter circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3974997A1 (en) * | 2020-09-23 | 2022-03-30 | Shenzhen Lingfeng Intelligent Technology Co., Ltd. | A method of signal conversion, a device, an electronic device and a storage medium |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170725 |
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| RJ01 | Rejection of invention patent application after publication |