CN204229835U - A kind of USB interface modular converter - Google Patents
A kind of USB interface modular converter Download PDFInfo
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- CN204229835U CN204229835U CN201420534356.9U CN201420534356U CN204229835U CN 204229835 U CN204229835 U CN 204229835U CN 201420534356 U CN201420534356 U CN 201420534356U CN 204229835 U CN204229835 U CN 204229835U
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- microcontroller
- usb interface
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- modular converter
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Abstract
The utility model discloses a kind of USB interface modular converter, comprise USB interface, protocol conversion chip, microcontroller, CAN interface, universal serial port, CAN transceiver, 232 transceivers and power circuit that USB turns serial ports, USB interface connects the USB port of protocol conversion chip, and the virtual serial port of protocol conversion chip connects a UART mouth of microcontroller; The CAN mouth of microcontroller connects CAN transceiver, and CAN transceiver connects CAN interface; Microcontroller has at least a UART mouth to connect 232 transceivers, and 232 transceivers connect universal serial port.The utility model can realize USB and turn CAN and 232 serial ports simultaneously, meets the USB interface equipment needs that simultaneously carry out communicating with multiple interfaces equipment, while also possess that speed is high, dirigibility good, the feature of highly versatile.
Description
[technical field]
The utility model relates to the communication technology, particularly relates to a kind of USB interface modular converter.
[background technology]
USB, CAN and RS232 serial ports is all data communication interface relatively more conventional on equipment, when needing to communicate between the equipment of distinct interface, often need increase interface modular converter, existing USB turns CAN or USB and turns serial port module and usually only have a kind of interface conversion, in a lot of application scenario, often need to be communicated with the equipment of multiple interfaces by a USB interface simultaneously, so existing interface modular converter does not have the ability of carrying out with multiple devices communicating simultaneously, only there is limitation in actual use and lack dirigibility.
[summary of the invention]
The technical problems to be solved in the utility model is to provide and a kind ofly can meets USB simultaneously and turn the USB interface modular converter that serial ports and USB turn CAN mouth.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of USB interface modular converter, comprise USB interface, protocol conversion chip, microcontroller, CAN interface, universal serial port, CAN transceiver, 232 transceivers and power circuit that USB turns serial ports, USB interface connects the USB port of protocol conversion chip, and the virtual serial port of protocol conversion chip connects a UART mouth of microcontroller; The CAN mouth of microcontroller connects CAN transceiver, and CAN transceiver connects CAN interface; Microcontroller has at least a UART mouth to connect 232 transceivers, and 232 transceivers connect universal serial port.
Above-described USB interface modular converter, CAN transceiver and 232 transceivers are the PHY chip of CAN and the PHY chip of 232 respectively.
Above-described USB interface modular converter, power circuit comprises power supply chip, the power pins of the input termination USB interface of power supply chip.
Above-described USB interface modular converter, comprise the running LED of microcontroller, CAN receives and dispatches pilot lamp and serial ports transmitting-receiving pilot lamp, microcontroller running LED, CAN receives and dispatches pilot lamp and serial ports receives and dispatches the microcontroller running status indicator signal output terminal that pilot lamp connects microcontroller respectively, and CAN receives and dispatches indicator signal output terminal and serial ports transmitting-receiving indicator signal output terminal.
Above-described USB interface modular converter, described microcontroller is STM32 chip; STM32 chip comprises 5 UART mouths, and wherein a UART mouth connects the I/O mouth of protocol conversion chip, and other 4 UART mouths connect 4 232 transceivers respectively, and each 232 transceivers connect a universal serial port.
Above-described USB interface modular converter, comprises the eeprom chip of storage protocol conversion chip configuration information, and eeprom chip connects the I2C interface of protocol conversion chip.
Above-described USB interface modular converter, comprise jtag interface, jtag interface connects microcontroller.
The utility model USB interface modular converter can realize USB and turn CAN and 232 serial ports simultaneously, meets the needs that a USB interface equipment carries out communicating with multiple interfaces equipment simultaneously.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the theory diagram of the utility model embodiment USB interface modular converter.
[embodiment]
As shown in Figure 1, the protocol conversion chip (FT2232D) that USB interface modular converter comprises USB interface, USB turns serial ports of the utility model embodiment, microcontroller STM32 chip, CAN interface, universal serial port, CAN transceiver, 232 transceivers and power circuit, USB interface connects the USB port of protocol conversion chip, and the I/O mouth of protocol conversion chip connects a UART mouth of STM32 chip.The CAN mouth of STM32 chip connects CAN transceiver, and CAN transceiver connects CAN interface.Other 4 the UART mouths of STM32 chip connect 4 232 transceivers respectively, and each 232 transceivers connect a universal serial port respectively.
CAN transceiver and 232 transceivers are the PHY chip of CAN and the PHY chip of 232 respectively, are respectively used to the conversion realizing physical layer signal level.
Module is without the need to other power supplys external, and power circuit comprises power supply chip, the power pins of the input termination USB interface of power supply chip, directly by USB interface power taking.5V power supply, after power supply IC is converted to 3.3V, provides 5V power supply or 3.3V power supply to each chip in module.
Status indicator lamp comprises indicator of the power supply status respectively, the running LED of STM32 chip, CAN receives and dispatches pilot lamp and serial ports transmitting-receiving pilot lamp, STM32 chip running LED, CAN receives and dispatches pilot lamp and serial ports receives and dispatches the STM32 chip running status indicator signal output terminal that pilot lamp connects STM32 chip respectively, and CAN receives and dispatches indicator signal output terminal and serial ports transmitting-receiving indicator signal output terminal.
The USB interface of protocol conversion chip supports USB2.0 full speed or high speed.Eeprom chip connects the I2C interface of protocol conversion chip, the configuration information of eeprom chip storage protocol conversion chip.The I/O mouth that configuration information comprises protocol conversion chip is configured to virtual serial port, realizes the function that USB is converted to virtual serial port, and the load of protocol conversion chip completes the transmission of the data on virtual serial port to USB interface.
Claims (7)
1. a USB interface modular converter, it is characterized in that, comprise USB interface, protocol conversion chip, microcontroller, CAN interface, universal serial port, CAN transceiver, 232 transceivers and power circuit that USB turns serial ports, USB interface connects the USB port of protocol conversion chip, and the virtual serial port of protocol conversion chip connects a UART mouth of microcontroller; The CAN mouth of microcontroller connects CAN transceiver, and CAN transceiver connects CAN interface; Microcontroller has at least a UART mouth to connect 232 transceivers, and 232 transceivers connect universal serial port.
2. USB interface modular converter according to claim 1, is characterized in that, CAN transceiver and 232 transceivers are the PHY chip of CAN and the PHY chip of 232 respectively.
3. USB interface modular converter according to claim 1, it is characterized in that, power circuit comprises power supply chip, the power pins of the input termination USB interface of power supply chip.
4. USB interface modular converter according to claim 1, it is characterized in that, comprise the running LED of microcontroller, CAN receives and dispatches pilot lamp and serial ports transmitting-receiving pilot lamp, microcontroller running LED, CAN receives and dispatches pilot lamp and serial ports receives and dispatches the microcontroller running status indicator signal output terminal that pilot lamp connects microcontroller respectively, and CAN receives and dispatches indicator signal output terminal and serial ports transmitting-receiving indicator signal output terminal.
5. USB interface modular converter according to claim 1, is characterized in that, described microcontroller is STM32 chip; STM32 chip comprises 5 UART mouths, and wherein a UART mouth connects the I/O mouth of protocol conversion chip, and other 4 UART mouths connect 4 232 transceivers respectively, and each 232 transceivers connect a universal serial port.
6. USB interface modular converter according to claim 1, is characterized in that, comprises the eeprom chip of storage protocol conversion chip configuration information, and eeprom chip connects the I2C interface of protocol conversion chip.
7. USB interface modular converter according to claim 1, is characterized in that, comprise jtag interface, jtag interface connects microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534356.9U CN204229835U (en) | 2014-09-17 | 2014-09-17 | A kind of USB interface modular converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534356.9U CN204229835U (en) | 2014-09-17 | 2014-09-17 | A kind of USB interface modular converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204229835U true CN204229835U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420534356.9U Expired - Fee Related CN204229835U (en) | 2014-09-17 | 2014-09-17 | A kind of USB interface modular converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN204229835U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105528323A (en) * | 2016-01-29 | 2016-04-27 | 深圳怡化电脑股份有限公司 | STM32F103 based USB (universal serial bus) and CAN (controller area network) multiplexer circuit |
| US20160335212A1 (en) * | 2015-05-11 | 2016-11-17 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Device for switching between communication modes |
| WO2020103097A1 (en) * | 2018-11-22 | 2020-05-28 | 北京比特大陆科技有限公司 | Data processing device |
| CN112181882A (en) * | 2020-09-23 | 2021-01-05 | 深圳市领峰电动智能科技有限公司 | Signal conversion method and device, electronic equipment and storage medium |
-
2014
- 2014-09-17 CN CN201420534356.9U patent/CN204229835U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160335212A1 (en) * | 2015-05-11 | 2016-11-17 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Device for switching between communication modes |
| US9804986B2 (en) * | 2015-05-11 | 2017-10-31 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Device for switching between communication modes |
| CN105528323A (en) * | 2016-01-29 | 2016-04-27 | 深圳怡化电脑股份有限公司 | STM32F103 based USB (universal serial bus) and CAN (controller area network) multiplexer circuit |
| WO2020103097A1 (en) * | 2018-11-22 | 2020-05-28 | 北京比特大陆科技有限公司 | Data processing device |
| CN112181882A (en) * | 2020-09-23 | 2021-01-05 | 深圳市领峰电动智能科技有限公司 | Signal conversion method and device, electronic equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20210917 |
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| CF01 | Termination of patent right due to non-payment of annual fee |