CN203535632U - GM812X based multi-serial-port communication device - Google Patents
GM812X based multi-serial-port communication device Download PDFInfo
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- CN203535632U CN203535632U CN201320705337.3U CN201320705337U CN203535632U CN 203535632 U CN203535632 U CN 203535632U CN 201320705337 U CN201320705337 U CN 201320705337U CN 203535632 U CN203535632 U CN 203535632U
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Abstract
The utility model discloses a GM812X based multi-serial-port communication device. The device comprises a micro controller, a GM812X multi-serial-port chip, a display module and an interface module. The micro controller is connected with the GM812X multi-serial-port chip and the display module, and the GM812X multi-serial-port chip is connected with the interface module. The device is capable of expanding a plurality of data serial ports.
Description
Technical field
The utility model relates to a kind of multiple serial port communication set based on GM812X, by multi-serial communication, realizes data transmission end to end, then by network, GSM, GPRS etc., realizes the function of wireless telecommunications.
Background technology
Data acquisition technology is one of important branch of information science, the problems such as collection, storage, processing and control of its research information data.Be widely used in the occasions such as needs while monitoring temperature, humidity and pressure such as industrial or agricultural.Current microcontroller (MCU) serial ports negligible amounts, or there is no UART(Universal Asynchronous Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter) interface, conventionally adopt the Single Chip Microcomputer (SCM) system of some function opposite independent to realize, therefore in multi-path data acquiring system, how reasonably extended serial port becomes the problem that must face.
Utility model content
Utility model object: the problem and shortage existing for above-mentioned prior art, the purpose of this utility model is to provide a kind of multiple serial port communication set based on GM812X, can expand a plurality of digital serial ports.
Technical scheme: for realizing above-mentioned utility model object, the technical solution adopted in the utility model is a kind of multiple serial port communication set based on GM812X, comprise microcontroller, the many serial port chip of GM812X, display module and interface module, described microcontroller connects the many serial port chip of GM812X and display module, and the many serial port chip of described GM812X are connection interface module also.The utility model be take microcontroller as core, by the many serial port chip of GM812X, expand a plurality of digital serial ports, what each digital serial port was separate carries out full-duplex communication with microcontroller, between them, also can intercom mutually, each digital serial port can connect respectively different external units, by microcontroller, coordinates the work between them.
Further, also comprise memory module and dual power supply level switch module, described dual power supply level switch module connects respectively microcontroller, the many serial port chip of GM812X and memory module, can expand the storage space of microcontroller, the mutual interface integrity problem that memory module, the microcontroller of solution different electrical power power voltage supply causes.Further, described memory module is Flash memory module.
Further, the quantity of described interface module is at least 4.
Further, described interface module is MAX232 chip.
Further, described microcontroller is single-chip microcomputer or ARM or FPGA.
Beneficial effect: the utility model provides the multiple serial port communication set based on GM812X, expand at least four digital serial ports, can intercom mutually, four digital serial ports can connect respectively different external units, thereby effectively prevented the interference between serial ports, and this installation cost is comparatively cheap, and reliability is strong.And this device has also been expanded FALSH storage space, can carry out Real-time Collection to outside data.By this device, can realize easily many serial ports data transmission end to end, data transmit-receive is realized simple, and workload seldom, takies I/O mouth resource few, and data processing speed is fast, and reliability is high.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the Multi-Serial Port Communication System based on GM812X of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
As shown in Figure 1, a kind of multiple serial port communication set based on GM812X of the present utility model, comprises microcontroller, the many serial port chip of GM812X, dual power supply level switch module, Flash memory module, display module and interface module.Below each ingredient and the mutual relationship of above-mentioned multiple serial port communication set are described in detail.
Described microcontroller, can select single-chip microcomputer, adopts 8 FLASH single chip computer AT, the 89 series A T89C52 of Atmel company, and 32, I/O mouth line conveniently further expands parallel storage and the storage of expansion NAND type.
Described Flash memory module, the K9F5608U0M of employing Samsung, the NAND flash memory of 32MB.
The many serial port chip of described GM812X, can control serial ports expansion mode of operation by microprocessor controls external pin, realize single channel mode of operation and hyperchannel mode of operation, female mouth of the many serial port chip of GM812X and the work baud rate in rim of the mouth are adjustable, and do not need to revise external circuit and crystal oscillator frequency.
Described dual power supply level switch module, for K9F5608UOM and the single-chip microcomputer of 5V power supply of 3.3V power supply carries out level conversion, provides reliably mutual interface, avoids the mutual string problem of electric current between two devices.And the power supply of the many serial port chip of GM812X is identical with single-chip microcomputer.
Described interface module, the single supply level transferring chip MAX232 chip that adopts rs-232 standard serial ports to design.
Described display module can be multiple display device, as LCD, TFT screen.
Claims (6)
1. the multiple serial port communication set based on GM812X, it is characterized in that, comprise microcontroller, the many serial port chip of GM812X, display module and interface module, described microcontroller connects the many serial port chip of GM812X and display module, and the many serial port chip of described GM812X are connection interface module also.
2. the multiple serial port communication set based on GM812X according to claim 1, it is characterized in that, also comprise memory module and dual power supply level switch module, described dual power supply level switch module connects respectively microcontroller, the many serial port chip of GM812X and memory module.
3. the multiple serial port communication set based on GM812X according to claim 2, is characterized in that, described memory module is Flash memory module.
4. the multiple serial port communication set based on GM812X according to claim 1, is characterized in that, the quantity of described interface module is at least 4.
5. the multiple serial port communication set based on GM812X according to claim 1, is characterized in that, described interface module is MAX232 chip.
6. the multiple serial port communication set based on GM812X according to claim 1, is characterized in that, described microcontroller is single-chip microcomputer or ARM or FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705337.3U CN203535632U (en) | 2013-11-11 | 2013-11-11 | GM812X based multi-serial-port communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705337.3U CN203535632U (en) | 2013-11-11 | 2013-11-11 | GM812X based multi-serial-port communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203535632U true CN203535632U (en) | 2014-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705337.3U Expired - Fee Related CN203535632U (en) | 2013-11-11 | 2013-11-11 | GM812X based multi-serial-port communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203535632U (en) |
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2013
- 2013-11-11 CN CN201320705337.3U patent/CN203535632U/en not_active Expired - Fee Related
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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: 20140409 Termination date: 20151111 |
|
| EXPY | Termination of patent right or utility model |