CN204832865U - 4 way serial communication interface controller based on CH432 chip - Google Patents
4 way serial communication interface controller based on CH432 chip Download PDFInfo
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- CN204832865U CN204832865U CN201520542009.5U CN201520542009U CN204832865U CN 204832865 U CN204832865 U CN 204832865U CN 201520542009 U CN201520542009 U CN 201520542009U CN 204832865 U CN204832865 U CN 204832865U
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Abstract
The utility model discloses a 4 way serial communication interface controller based on CH432 chip relates to controller interface extension technical field. The utility model discloses have a treater and power conversion module, microprocessor is corresponding to be connected with a serial communication interface, the 2nd serial communication interface and CH432 chip, and the correspondence of CH432 chip is connected with the 3rd serial communication interface and fourth serial communication interface, the power conversion module input is connected, and microprocessor and the power supply of CH432 chip are given respectively to power conversion module output 3.3V DC voltage. The advantage: read 4 way serial communication interface data simultaneously to can effectual monitoring cost, resources are saved.
Description
Technical field
The utility model relates to a kind of controller expansion technique field, specifically a kind of 4 road serial communication interface controllers based on CH432 chip.
Background technology
In the epoch of the CPU high speed development of single-chip microcomputer, the multiple different framework model of ARM, DSP etc., large multisensor, transmitter, instrument and meter are all by data packing compression, serial communication interface is sent to the baud rate code stream form of regulation, read desired data to facilitate during slip-stick artist's secondary development, carry out further data analysis research.General single-chip microcomputer can have dual serial communication interface, still can often occur in actual use, the problem that the serial communication interface of single-chip microcomputer is not enough, and use the contour performance chip of ARM, DSP greatly can improve the cost of product, finally have no alternative but to change scheme, or the high performance CPU of choice for use.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the utility model provides a kind of 4 road serial communication interface controllers based on CH432 chip, and solve the problem that conventional one-piece machine serial communication interface is not enough, read 4 road serial communication interface data, cost is low simultaneously.
The utility model realizes with following technical scheme: a kind of 4 road serial communication interface controllers based on CH432 chip, comprise microprocessor and power transfer module, described microprocessor correspondence is connected with the first serial communication interface, the second serial communication interface and CH432 chip, and described CH432 chip correspondence is connected with the 3rd serial communication interface and the 4th serial communication interface; Power transfer module input end connects power supply, and power transfer module output terminal exports 3.3V DC voltage respectively to microprocessor and CH432 chip power supply.
It is further: described microprocessor adopts single-chip microcomputer STC12LE5A60S2.
Described power transfer module adopts voltage stabilizer AMS1117-3.3.
The beneficial effects of the utility model are: read 4 road serial communication interface data simultaneously, and can effectively control cost, economize on resources.
Accompanying drawing explanation
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
As shown in Figure 1, based on 4 road serial communication interface controllers of CH432 chip, comprise single-chip microcomputer STC12LE5A60S2, CH432 chip, the first serial communication interface, the second serial communication interface, the 3rd serial communication interface, the 4th serial communication interface and power supply.Wherein power acquisition 5V power supply, 5V power supply is converted to 3.3V DC voltage respectively to single-chip microcomputer STC12LE5A60S2 and CH432 chip power supply through power transfer module, 41 pin of CH432 chip connect 3.3V positive pole, 17 pin connect 3.3V negative pole, 1 pin of single-chip microcomputer STC12LE5A60S2, 9 pin, 4 pin, 2 pin, 3 pin are respectively at 2 pin of CH432 chip, 1 pin, 20 pin, 17 pin, 16 pin correspondences are connected, 8 pin of single-chip microcomputer STC12LE5A60S2, 6 pin connect the first serial communication interface, 46 pin of single-chip microcomputer STC12LE5A60S2, 45 pin connect the second serial communication interface, 18 pin of CH432 chip connect 3.3V positive pole, 3 pin connect 3.3V negative pole, 4 pin of CH432 chip, 6 pin connect the 3rd serial communication interface, 11 pin of CH432 chip, 13 pin connect the 4th serial communication interface.
That CPU adopts is self STC12LE5A60S2 with 2 road serial communication interfaces, and that serial communication interface extended chip adopts is CH432, and power conversion chip adopts voltage stabilizer AMS1117-3.3, and power supply system takes 5V to power.
Claims (3)
1. 4 road serial communication interface controllers based on CH432 chip, comprise microprocessor and power transfer module, it is characterized in that: described microprocessor correspondence is connected with the first serial communication interface, the second serial communication interface and CH432 chip, described CH432 chip correspondence is connected with the 3rd serial communication interface and the 4th serial communication interface; Power transfer module input end connects power supply, and power transfer module output terminal exports 3.3V DC voltage respectively to microprocessor and CH432 chip power supply.
2. a kind of 4 road serial communication interface controllers based on CH432 chip according to claim 1, is characterized in that: described microprocessor adopts single-chip microcomputer STC12LE5A60S2.
3. a kind of 4 road serial communication interface controllers based on CH432 chip according to claim 1 and 2, is characterized in that: described power transfer module adopts voltage stabilizer AMS1117-3.3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542009.5U CN204832865U (en) | 2015-07-23 | 2015-07-23 | 4 way serial communication interface controller based on CH432 chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520542009.5U CN204832865U (en) | 2015-07-23 | 2015-07-23 | 4 way serial communication interface controller based on CH432 chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204832865U true CN204832865U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520542009.5U Expired - Fee Related CN204832865U (en) | 2015-07-23 | 2015-07-23 | 4 way serial communication interface controller based on CH432 chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204832865U (en) |
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2015
- 2015-07-23 CN CN201520542009.5U patent/CN204832865U/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: 20151202 Termination date: 20160723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |