CN206162512U - MCU and wireless serial module's connection structure - Google Patents
MCU and wireless serial module's connection structure Download PDFInfo
- Publication number
- CN206162512U CN206162512U CN201620920942.6U CN201620920942U CN206162512U CN 206162512 U CN206162512 U CN 206162512U CN 201620920942 U CN201620920942 U CN 201620920942U CN 206162512 U CN206162512 U CN 206162512U
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- mcu
- wireless serial
- serial module
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Abstract
The utility model belongs to the technical field of the telecommunications, concretely relates to MCU and wireless serial module's connection structure. Make wireless serial module's parameter rewritten by the mistake easily in solving prior art, can not realize fast switch over operating condition's technical problem, provide a MCU and wireless serial module's connection structure, include MCU and the wireless serial module who is connected with MCU, MCU's a GPIO pin is connected with wireless serial module's MD0 pin, MCU's the 2nd GPIO pin is connected with wireless serial module's MD1 pin, MCU's RXD pin is connected with wireless serial module's TXD pin, MCU's TXD pin is connected with wireless serial module's RXD pin, MCU's GPIOINT pin is connected with wireless serial module's AUX pin. The utility model discloses can realize operating condition's fast switch over, use more in a flexible way, can satisfy more user demands.
Description
Technical field
The utility model belongs to electronic communication technology field, and in particular to a kind of MCU is tied with the connection of wireless serial module
Structure.
Background technology
At present the wireless serial module of existing wireless serial module all has 4 pins, is respectively：Power supply（VCC）, ground
（GND）, serial ports output（TXD）, serial ports input（RXD）.Wireless serial module, i.e., carry out the mould of radio communication by serial ports
Block, is usually made up of radio transmitting and receiving chip and a MCU with serial ports.Existing radio transmitting and receiving chip power consumption is higher, works as place
When reason device is connected with radio transmitting and receiving chip, and due to rewriting module parameter and data transfer exported by serial ports（TXD）With
Serial ports is input into（RXD）To complete, so being easy to the data to be transmitted as the order for rewriting parameter so that wireless serial mould
The parameter of block is mistakenly rewritten；Therefore, the connected mode of existing processor and wireless serial module limits the application of client, when
The parameter change operation of mistake is easily produced when the input and output that need frequently to enter line parameter and data, information security is caused
Hidden danger.
Utility model content
The purpose of this utility model is to solve technical problem present in above prior art, there is provided one kind can quickly cut
The MCU of the state that changes jobs and the attachment structure of wireless serial module.
The purpose of this utility model is achieved through the following technical solutions：
The attachment structure of a kind of MCU and wireless serial module, including MCU and the wireless serial module that is connected with MCU；
First GPIO pin of the MCU is connected with the MD0 pins of wireless serial module；
Second GPIO pin of the MCU is connected with the MD1 pins of wireless serial module；
The RXD pins of the MCU are connected with the TXD pins of wireless serial module；
The TXD pins of the MCU are connected with the RXD pins of wireless serial module；
The GPIO/INT pins of the MCU are connected with the AUX pins of wireless serial module.
Further improvement be, MCU models MCU-51 or MCU-AVR or MCU-ARM or MCU-ST.
The utility model is relative to the beneficial effect of prior art：MCU of the present utility model and wireless serial module
Attachment structure is connected using MCU with MD0 the and MD1 pins of wireless serial module, increases by 4 kinds of mode of operation, is allowed and wirelessly go here and there
Mouth mold block enters different functional modes, realizes being switched fast；The attachment structure of MCU of the present utility model and wireless serial module
Rewriting module parameter and data transfer can be made to complete in different modes, therefore module parameter will not be mistakenly rewritten, in addition
A pin (AUX) be increased as state instruction, using more flexibly, more use demands can be met.
Description of the drawings
The theory diagram of the attachment structure of Fig. 1 MCU of the present utility model and wireless serial module.
Specific embodiment
Below in conjunction with drawings and Examples to a kind of MCU of the present utility model and the skill of the attachment structure of wireless serial module
Art scheme is described in detail, so that those skilled in the art can be abundant on the basis of the utility model book has been read
Complete realizes the technical solution of the utility model, and solves to be asked present in prior art to be solved in the utility model
Topic.It should be noted that be only below preferred embodiment of the present utility model, for one of ordinary skill in the art comes
Say, on the premise of design is created without departing from the utility model, can also make some deformations and improvement, these should be belonged to
Protection domain of the present utility model.
Embodiment
It is as shown in Figure 1, the attachment structure of a kind of MCU and wireless serial module, including MCU and the nothing that is connected with MCU
Line serial port module；
First GPIO pin of the MCU is connected with the MD0 pins of wireless serial module；
Second GPIO pin of the MCU is connected with the MD1 pins of wireless serial module；
The RXD pins of the MCU are connected with the TXD pins of wireless serial module；
The TXD pins of the MCU are connected with the RXD pins of wireless serial module；
The GPIO/INT pins of the MCU are connected with the AUX pins of wireless serial module.
Specifically, the positive pole phase of the VCC pin of the VCC pin of the MCU and wireless serial module and 3.3 ~ 5.5V power supplys
Connection；The GND pin and the GND pin of wireless serial module of the MCU is connected with the ground wire of power supply.
A kind of MCU as shown in Figure 1 and the attachment structure of wireless serial module, are received by MD0 and MD1 and are sent out from MCU
Go out using logic level represent 0 or 1 setting working condition, such as MD0 is input into 0, MD1 inputs 0；MD0 is input into 0, MD1 inputs
1；MD0 inputs 1, MD1, input 0；MD0 is input into 1, MD1 inputs 0；There are four kinds of combined situations, by setting to each combination
Fixed corresponding working condition carries out performing the corresponding purpose for instructing to reach；By the AUX pins of wireless serial module, will
The corresponding working condition of every kind of combination of wireless serial module feeds back to MCU, and MCU is by low and high level signal to MD0 and MD1
Working condition be adjusted；So as to realize monitor in real time and feedback operation state, when the work for needing to change wireless serial module
When making state, low and high level signal fast and accurately switch operating state is input into；Various work shapes are set by the utility model
State when needing to change parameter setting, by individually by the certain combination of the input of working condition and the low and high level of modification parameter
Match, so as to realize avoiding to run-time error caused by the erroneous judgement between parameter modification and data transfer；And drawn by AUX
The working condition of wireless serial module is fed back to MCU by pin, also can be adjusted in time even if there is the run-time error of small probability；So as to
Realize switching quickly and accurately between various mode of operations, the accuracy and operational efficiency of lifting means.
Further improvement be, MCU models MCU-51 or MCU-AVR or MCU-ARM or MCU-ST.
Using MCU models MCU-51 or MCU-AVR or MCU-ARM or MCU-ST, various work of the present utility model are made
The operation of state is more reliable and more stable, and serious forgiveness is higher, so as to realize quickly and accurately being operated the switching of state, reduce by
The energy loss caused by run-time error.
The technical solution of the utility model can fully be realized according to the content of this disclosure.
Claims (2)
1. the attachment structure of a kind of MCU and wireless serial module, it is characterised in that including MCU and the wireless string being connected with MCU
Mouth mold block；
First GPIO pin of the MCU is connected with the MD0 pins of wireless serial module；
Second GPIO pin of the MCU is connected with the MD1 pins of wireless serial module；
The RXD pins of the MCU are connected with the TXD pins of wireless serial module；
The TXD pins of the MCU are connected with the RXD pins of wireless serial module；
The GPIO/INT pins of the MCU are connected with the AUX pins of wireless serial module.
2. the attachment structure of MCU according to claim 1 and wireless serial module, it is characterised in that the MCU models
MCU-51 or MCU-AVR or MCU-ARM or MCU-ST.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620920942.6U CN206162512U (en) | 2016-08-22 | 2016-08-22 | MCU and wireless serial module's connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620920942.6U CN206162512U (en) | 2016-08-22 | 2016-08-22 | MCU and wireless serial module's connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206162512U true CN206162512U (en) | 2017-05-10 |
Family
ID=58648863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620920942.6U Active CN206162512U (en) | 2016-08-22 | 2016-08-22 | MCU and wireless serial module's connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206162512U (en) |
-
2016
- 2016-08-22 CN CN201620920942.6U patent/CN206162512U/en active Active
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