CN204423362U - A kind of single chip computer device of expanding digital analog-converted interface - Google Patents
A kind of single chip computer device of expanding digital analog-converted interface Download PDFInfo
- Publication number
- CN204423362U CN204423362U CN201520111952.0U CN201520111952U CN204423362U CN 204423362 U CN204423362 U CN 204423362U CN 201520111952 U CN201520111952 U CN 201520111952U CN 204423362 U CN204423362 U CN 204423362U
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- interface
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- chip microcomputer
- digital analog
- computer device
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Abstract
The utility model discloses a kind of single chip computer device of expanding digital analog-converted interface, comprise main processing block, main processing block is connected with expanding digital analog conversion module by module select signal line, SPI interface signal line, expanding digital analog conversion module comprises auxiliary process single-chip microcomputer, auxiliary process single-chip microcomputer is connected with AD5697 chip by IIC interface line, control line, and AD5697R chip has output analog interface.Achieve single-chip microcomputer by the multiple digital-to-analogue conversion interface of SPI Interface Expanding, single-chip microcomputer can be made to have the digital-to-analogue conversion interface of multiple external connection, meet the demand of people.
Description
Technical field
The utility model belongs to singlechip technology field, is specifically related to a kind of single chip computer device of expanding digital analog-converted interface.
Background technology
Current single-chip microcomputer is not usually or only have limited several digital-to-analogue conversion interfaces, but when the digital-to-analogue conversion interface quantity that Single Chip Microcomputer (SCM) system needs exceeds the digital-to-analogue conversion interface quantity that this single-chip microcomputer can provide, just need single-chip microcomputer extension digital-to-analogue conversion interface, digital-to-analogue conversion interface is a kind of functional interface commonly used, when a single-chip microcomputer needs to use multiple digital-to-analogue conversion interface, just need the multiple digital-to-analogue conversion interface of single-chip microcomputer extension, meet actual demand.
Utility model content
The purpose of this utility model is to provide a kind of single chip computer device of expanding digital analog-converted interface, and achieving single-chip microcomputer can by the multiple digital-to-analogue conversion interface of SPI Interface Expanding.
The technical scheme that the utility model adopts is, a kind of single chip computer device of expanding digital analog-converted interface, comprise main processing block, main processing block is connected with expanding digital analog conversion module by module select signal line, SPI interface signal line, expanding digital analog conversion module comprises auxiliary process single-chip microcomputer, auxiliary process single-chip microcomputer is connected with AD5697 chip by IIC interface line, control line, and AD5697R chip has output analog interface.
Feature of the present utility model is also,
Wherein main processing block is connected with auxiliary process single-chip microcomputer, and main processing single chip is MSP430F149 single-chip microcomputer.
Wherein auxiliary process single-chip microcomputer is MSP430F2132 single-chip microcomputer.
Wherein IIC interface line connects P1.0 interface and the P1.1 interface of auxiliary process single-chip microcomputer, and IIC interface line connects SCL interface and the SDA interface of AD5697 chip.
Wherein control line connects P1.2 interface and the P1.3 interface of auxiliary process single-chip microcomputer, and control line connects LDAC interface and the RESET interface of AD5697 chip.
Wherein export analog interface and comprise VoutA interface and VoutB interface.
Wherein SPI interface signal line connects the UCB0STE interface of auxiliary process single-chip microcomputer, UCB0SIMO interface, UCB0SOMI interface and UCB0CLK interface.
The beneficial effects of the utility model are that main processing block is connected with auxiliary process single-chip microcomputer by SPI interface signal line, module select signal line, auxiliary process single-chip microcomputer is MSP430F2132 single-chip microcomputer, auxiliary process single-chip microcomputer is connected with AD5697R chip by IIC interface line, control line, AD5697R chip has output analog interface, main processing block can be passed to the digital signal of auxiliary process single-chip microcomputer by SPI interface signal line, be converted to simulating signal by AD5697R chip again, and by exporting analog interface, simulating signal spread out of.Therefore digital signal can be converted to simulating signal by main processing block, and is exported by the output analog interface that expansion is multiple.
Accompanying drawing explanation
Fig. 1 is the structural representation of the single chip computer device of a kind of expanding digital analog-converted of the utility model interface;
Fig. 2 is the connection diagram of expanding digital analog-converted interface module in the single chip computer device of a kind of expanding digital analog-converted of the utility model interface.
In figure, 1. main processing block, 2. module select signal line, 3.SPI interface signal line, 4. expanding digital analog-converted interface module, 5. auxiliary process single-chip microcomputer, 6.AD5697R chip, 7.IIC interface line, 8. control line, 9. export analog interface.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model provides a kind of single chip computer device of expanding digital analog-converted interface, as shown in Figure 1, comprise main processing block 1, main processing block 1 is MSP430F149 single-chip microcomputer, and main processing block 1 is connected with expanding digital analog-converted interface module 4 by module select signal line 2, SPI interface signal line 3, as shown in Figure 2, expanding digital analog-converted interface module 4 comprises auxiliary process single-chip microcomputer 5, auxiliary process single-chip microcomputer 5 is MSP430F2132 single-chip microcomputer, and SPI interface signal line 3 connects the UCB0STE interface of auxiliary process single-chip microcomputer 5, UCB0SIMO interface, UCB0SOMI interface and UCB0CLK interface, signal wire 2 selected by auxiliary process single-chip microcomputer 5 also link block, auxiliary process single-chip microcomputer 5 is connected with AD5697R chip 6 with control line 8 by IIC interface line 7, connect P1.0 interface and the P1.1 interface of auxiliary process single-chip microcomputer 5, IIC interface line 7 connects SCL interface and the SDA interface of AD5697R chip 6, control line 8 connects P1.2 interface and the P1.3 interface of auxiliary process single-chip microcomputer, control line 8 connects LDAC interface and the RESET interface of AD5697 chip 6, AD5697 chip 6 has output analog interface 9, input analog interface 9 comprises VoutA interface and VoutB interface.
The using method of the single chip computer device of a kind of expanding digital analog-converted of the utility model interface is, auxiliary process single-chip microcomputer 5 is MSP430F2132 single-chip microcomputer, auxiliary process single-chip microcomputer 5 obtains the digital signal of main processing block 1 transmission by SPI interface signal line 3, auxiliary process single-chip microcomputer 5 is by IIC interface line 7, control line 8 by digital signal transfers to AD5697R chip 6, and AD5697R chip 6 is arranged by IIC interface mode by the P1.0 interface of auxiliary process single-chip microcomputer 5 and P1.1 interface, digital signal is converted to simulating signal by AD5697R chip 6, and by the output analog interface 9 on AD5697R chip by analog signal output.
Claims (7)
1. the single chip computer device of an expanding digital analog-converted interface, it is characterized in that, comprise main processing block (1), main processing block (1) is by module select signal line (2), SPI interface signal line (3) is connected with expanding digital analog conversion module (4), expanding digital analog conversion module (4) comprises auxiliary process single-chip microcomputer (5), auxiliary process single-chip microcomputer (5) is by IIC interface line (7), control line (8) is connected with AD5697 chip (6), AD5697R chip (6) has output analog interface (9).
2. the single chip computer device of a kind of expanding digital analog-converted interface according to claim 1, it is characterized in that, described main processing block (1) is connected with auxiliary process single-chip microcomputer (5), and main processing single chip (1) is MSP430F149 single-chip microcomputer.
3. the single chip computer device of a kind of expanding digital analog-converted interface according to claim 1, is characterized in that, described auxiliary process single-chip microcomputer (5) is MSP430F2132 single-chip microcomputer.
4. according to the single chip computer device of the expanding digital analog-converted interface in claim 1-3 described in any one, it is characterized in that, described IIC interface line (7) connects P1.0 interface and the P1.1 interface of auxiliary process single-chip microcomputer (5), and IIC interface line (7) connects SCL interface and the SDA interface of AD5697 chip (6).
5. according to the single chip computer device of the expanding digital analog-converted interface in claim 1-3 described in any one, it is characterized in that, described control line (8) connects P1.2 interface and the P1.3 interface of auxiliary process single-chip microcomputer (5), and control line (8) connects LDAC interface and the RESET interface of AD5697 chip (6).
6. according to the single chip computer device of the expanding digital analog-converted interface in claim 1-3 described in any one, it is characterized in that, described output analog interface (9) comprises VoutA interface and VoutB interface.
7. according to the single chip computer device of the expanding digital analog-converted interface in claim 1-3 described in any one, it is characterized in that, described SPI interface signal line (3) connects the UCB0STE interface of auxiliary process single-chip microcomputer (5), UCB0SIMO interface, UCB0SOMI interface and UCB0CLK interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520111952.0U CN204423362U (en) | 2015-02-16 | 2015-02-16 | A kind of single chip computer device of expanding digital analog-converted interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520111952.0U CN204423362U (en) | 2015-02-16 | 2015-02-16 | A kind of single chip computer device of expanding digital analog-converted interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204423362U true CN204423362U (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520111952.0U Expired - Fee Related CN204423362U (en) | 2015-02-16 | 2015-02-16 | A kind of single chip computer device of expanding digital analog-converted interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204423362U (en) |
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2015
- 2015-02-16 CN CN201520111952.0U patent/CN204423362U/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: 20150624 Termination date: 20160216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |