CN103345238A - Voltage output circuit with configurable network - Google Patents
Voltage output circuit with configurable network Download PDFInfo
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- CN103345238A CN103345238A CN2013103258788A CN201310325878A CN103345238A CN 103345238 A CN103345238 A CN 103345238A CN 2013103258788 A CN2013103258788 A CN 2013103258788A CN 201310325878 A CN201310325878 A CN 201310325878A CN 103345238 A CN103345238 A CN 103345238A
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Abstract
The invention discloses a voltage output circuit with a configurable network, belongs to the technical field of an electronic circuit, and solves the problems that remote debugging cannot be achieved by the traditional voltage output circuit, and the configuration content cannot be remotely modified. Data input and output ends of a network interface are connected to the data input and output ends of a network control circuit; second data input and output ends of the network control circuit are connected with the data input and output ends of a single chip circuit; the second data input and output ends of the single chip circuit are connected to the data input and output ends of an FPGA (field programmable gate array) control circuit; an address signal output end of the single chip circuit is connected with an address signal input end of the FPGA control circuit; a writing signal output end of the single chip circuit is connected to a writing signal input end of the FPGA control circuit; a voltage control signal output end and a voltage signal input end of the FPGA control circuit are connected with a voltage control signal input end and a voltage signal output end of the voltage output circuit. The voltage output circuit is suitable for the technical field of the electronic circuit.
Description
Technical field
The invention belongs to the electronic circuit technology field.
Background technology
Universalization is as the development trend of modular design, and one of them of its gordian technique is exactly the application of networking technology.Be mutually combining of the appearance of network technology of representative and it and other high and new technologies with the Internet, not only oneself begins to bring the intelligent Web product into the modern life, and for measurement and technical device have brought unprecedented development space and opportunity, networked measuring technique is arisen at the historic moment with the equipment that possesses network function.The application of networking technology has improved the dirigibility of equipment control greatly, but existing voltage follower circuit can not carry out the problem that remote debugging and deploy content can't remotely modifyings.
Summary of the invention
The present invention has proposed the configurable voltage follower circuit of a kind of network in order to solve the problem that existing voltage follower circuit can't realize that remote debugging and deploy content can't remotely modifyings.
The configurable voltage follower circuit of network of the present invention, this circuit comprise network interface, network control circuit, single chip circuit, FPGA control circuit, external memory storage and voltage follower circuit;
The data input/output terminal of network interface connects the data input/output terminal of network control circuit, No. two data input/output terminals of network control circuit connect the data input/output terminal of single chip circuit, No. two data input/output terminals of single chip circuit connect FPGA control circuit data input/output terminal, the address signal output terminal on monolithic road connects the address signal input end of FPGA control circuit, the write signal output terminal of single chip circuit connects FPGA control circuit write signal input end, the read signal output terminal of single chip circuit connects the read signal input end of FPGA control circuit, and the voltage control signal output of FPGA control circuit is connected voltage control signal input and the voltage signal output end of voltage follower circuit with the voltage signal input end;
The present invention carries out the transmission of control information through network interface, again through single chip circuit and FPGA control circuit, realizes the control to the voltage follower circuit output voltage, finally realizes the Long-distance Control of output voltage and the remotely modifying of deploy content
Description of drawings
Fig. 1 is the structural representation of the configurable voltage follower circuit of network of the present invention;
Fig. 2 is embodiment three described state machine redirect synoptic diagram;
Fig. 3 is the structural representation of embodiment two described FPGA control circuits.
Embodiment
Embodiment one, in conjunction with Fig. 1 present embodiment is described, the configurable voltage follower circuit of the described network of present embodiment, this circuit comprises network interface 1, network control circuit 2, single chip circuit 3, FPGA control circuit 4 and voltage follower circuit 6;
The data input/output terminal of network interface 1 connects the data input/output terminal of network control circuit 2, No. two data input/output terminals of network control circuit 2 connect the data input/output terminal of single chip circuit 3, No. two data input/output terminals of single chip circuit 3 connect FPGA control circuit 4 data input/output terminals, the address signal output terminal of single chip circuit 3 connects the address signal input end of FPGA control circuit 4, the write signal output terminal of single chip circuit 3 connects FPGA control circuit 4 write signal input ends, the read signal output terminal of single chip circuit 3 connects the read signal input end of FPGA control circuit 4, and the voltage control signal output of FPGA control circuit 4 is connected the voltage control signal input and voltage signal input end of voltage follower circuit 6 with voltage signal output end.
The described circuit debugging of present embodiment is convenient, only needs a netting twine to be connected with personal computer and can to finish, and the user can control and functional configuration circuit easily.
Embodiment two, in conjunction with Fig. 2 present embodiment is described, present embodiment is further specifying of the configurable voltage follower circuit of network that embodiment one is stated, and FPGA control circuit 4 is made up of decoding module and DAC control module;
No. two data input/output terminals of single chip circuit 3 connect decoding module 4-1 data input/output terminal, the address signal output terminal of single chip circuit 3 connects the address signal input end of decoding module 4-1, the write signal output terminal of single chip circuit 3 connects decoding logic module write signal input end, the read signal output terminal of single chip circuit 3 connects the read signal input end of decoding module 4-1, and the decoded signal output of decoding module 4-1 is connected the decoded signal input and coded signal output terminal of DAC control module 4-2 with the coded signal input end; The data select signal output terminal of DAC control module 4-2 connects the data select signal input end of voltage follower circuit 6, the serial data output terminal of DAC control module 4-2 connects the serial data input end of voltage follower circuit 6, the renewal voltage channel signal output part of DAC control module 4-2 connects the renewal voltage channel signal input part of voltage follower circuit 6, the loading DAC cache register signal output part of DAC control module 4-2 connects the loading DAC cache register signal input part of voltage follower circuit 6, the enable signal output terminal of DAC control module 4-2 connects the enable signal input end of voltage follower circuit 6, the concrete channel number signal output part of DAC control module 4-2 connects voltage follower circuit 6 concrete channel number signal input parts, and the selector channel signal output part of DAC control module 4-2 connects voltage follower circuit 6 selector channel signal input parts.
FPGA carries out data interaction by data line DATA, address wire ADDR, read-write control line RD and WR with single chip circuit.Single chip circuit is responsible for receiving and is sent network data on address wire, decoding logic, stores the data on the data line in the configuration register into when write signal is effective according to the address signal of input, in like manner, according to address and read signal the data in the configuration register are delivered to single chip circuit.
Embodiment three, present embodiment are further specifying the embodiment two configurable voltage follower circuits of described network, this circuit also comprises external memory storage 5, and the external data signal input/output terminal end of FPGA control circuit 4 connects the read-write end of external memory storage 5.
The FPGA control circuit carries out functional configuration by decoding logic with the network data that single chip circuit extracts, and stores configuration information into external memory storage, the output of control aanalogvoltage.
Embodiment four, in conjunction with Fig. 3 present embodiment is described, present embodiment is further specifying the embodiment two configurable voltage follower circuits of described network, DAC control module 4-2 adopts the redirect of state machine to realize logic control, and described state machine comprises 4 states: idle condition, selection mode, state of a control machine and the parallel serial state that changes;
Idle condition, 4-2 resets to the DAC control module, when detecting beginning switching signal Startflag==1﹠amp; ﹠amp; During Start==1, jump to the data selection mode;
The data selection mode, the data selection mode is selected signal according to the voltage channel that decoding module 4-1 decoding obtains, and selects voltage channel number, selects to finish when detecting concrete channel number, and state machine jumps to the parallel serial state that changes;
The parallel serial state that changes is converted to serial output with parallel data, and after detecting serial output and finishing, state machine jumps to state of a control;
State of a control, output voltage passage update signal and load DAC cache register signal changes output channel number, finishes behind the order Start==0 when detecting all passages outputs, and state machine jumps to idle condition, otherwise jumps to the data selection mode.
Embodiment five, present embodiment are to the further specifying of the configurable voltage follower circuit of embodiment one described network, and single chip circuit 3 adopts AVR single chip circuit ATmega128 to realize.
Embodiment six, present embodiment are to the further specifying of the configurable voltage follower circuit of embodiment one described network, and network control circuit 2 adopts the W5100 chips to realize.
Network control circuit uses W5100 can realize transmission and the extraction of the Internet protocol data, namely realizes ICP/IP protocol; The single chip circuit circuit is responsible for network data is read from the data buffer of W5100, sends to FPGA, also data can be sent to external network by W5100 simultaneously.
The communication of single chip circuit and W5100 uses the SPI interface of single chip circuit to realize, each port of initialization at first after single chip circuit starts, comprise the SPI interface, then by disposing the register of W5100 chip, the information such as physical address, default gateway, subnet mask that comprise equipment are used for realizing the physical connection of the network equipment.
Eight bit data line, address wire are used in the data interaction of single chip circuit and FPGA, and the read-write control signal line, by the FPGA control circuit to the data interaction of bus realization of decoding.Except the bus decoding logic, the FPGA control circuit also comprises external memory storage steering logic and voltage output control logic.
Single-chip microcomputer powers up back initialization single-chip microcomputer, by control SPI interface initialization W5100 chip, comprises that physical address, gateway, subnet mask, IP address arrange, and the Socket that uses arranges etc.By judging W5100 interrupt register internal interrupt type, single-chip microcomputer is carried out corresponding operation then.
Claims (6)
1. the configurable voltage follower circuit of network is characterized in that, this circuit comprises network interface (1), network control circuit (2), single chip circuit (3), FPGA control circuit (4) and voltage follower circuit (6);
The data input/output terminal of network interface (1) connects the data input/output terminal of network control circuit (2), No. two data input/output terminals of network control circuit (2) connect the data input/output terminal of single chip circuit (3), No. two data input/output terminals of single chip circuit (3) connect FPGA control circuit (4) data input/output terminal, the address signal output terminal of single chip circuit (3) connects the address signal input end of FPGA control circuit (4), the write signal output terminal of single chip circuit (3) connects FPGA control circuit (4) write signal input end, the read signal output terminal of single chip circuit (3) connects the read signal input end of FPGA control circuit (4), and the voltage control signal output of FPGA control circuit (4) is connected the voltage control signal input and voltage signal input end of voltage follower circuit (6) with voltage signal output end.
2. the configurable voltage follower circuit of network according to claim 1 is characterized in that, FPGA control circuit (4) is made up of decoding module (4-1) and DAC control module (4-2);
No. two data input/output terminals of single chip circuit (3) connect decoding module (4-1) data input/output terminal, the address signal output terminal of single chip circuit (3) connects the address signal input end of decoding module (4-1), the write signal output terminal of single chip circuit (3) connects decoding logic module write signal input end, the read signal output terminal of single chip circuit (3) connects the read signal input end of decoding module (4-1), and the decoded signal output of decoding module (4-1) is connected the decoded signal input and coded signal output terminal of DAC control module (4-2) with the coded signal input end; The data select signal output terminal of DAC control module (4-2) connects the data select signal input end of voltage follower circuit (6), the serial data output terminal of DAC control module (4-2) connects the serial data input end of voltage follower circuit (6), the renewal voltage channel signal output part of DAC control module (4-2) connects the renewal voltage channel signal input part of voltage follower circuit (6), the loading DAC cache register signal output part of DAC control module (4-2) connects the loading DAC cache register signal input part of voltage follower circuit (6), the enable signal output terminal of DAC control module (4-2) connects the enable signal input end of voltage follower circuit (6), the concrete channel number signal output part of DAC control module (4-2) connects the concrete channel number signal input part of voltage follower circuit (6), and the selector channel signal output part of DAC control module (4-2) connects voltage follower circuit (6) selector channel signal input part.
3. the configurable voltage follower circuit of network according to claim 1 is characterized in that, this circuit also comprises external memory storage (5), and the external data signal input/output terminal end of FPGA control circuit (4) connects the read-write end of external memory storage (5).
4. the configurable voltage follower circuit of network according to claim 1, it is characterized in that, the DAC control module adopts the redirect of state machine to realize logic control, and described state machine comprises 4 states: idle condition, selection mode, state of a control machine and the parallel serial state that changes;
Idle condition resets to the DAC control module, when detecting beginning switching signal Startflag==1﹠amp; ﹠amp; During Start==1, jump to the data selection mode;
The data selection mode, the data selection mode is selected signal according to the voltage channel that decoding module decoding obtains, and selects voltage channel number, selects to finish when detecting concrete channel number, and state machine jumps to the parallel serial state that changes;
The parallel serial state that changes is converted to serial output with parallel data, and after detecting serial output and finishing, state machine jumps to state of a control;
State of a control, output voltage passage update signal and load DAC cache register signal changes output channel number, finishes behind the order Strart==0 when detecting all passages outputs, and state machine jumps to idle condition, otherwise jumps to the data selection mode.
5. the configurable voltage follower circuit of network according to claim 1 is characterized in that, single chip circuit (3) adopts AVR single chip computer AT mega128 to realize.
6. the configurable voltage follower circuit of network according to claim 1 is characterized in that, network control circuit (2) adopts the W5100 chip to realize.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310325878.8A CN103345238B (en) | 2013-07-31 | 2013-07-31 | Voltage output circuit with configurable network |
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| CN201310325878.8A CN103345238B (en) | 2013-07-31 | 2013-07-31 | Voltage output circuit with configurable network |
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| CN103345238B CN103345238B (en) | 2015-08-19 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1233328A2 (en) * | 2001-02-16 | 2002-08-21 | Nallatech, Ltd. | Programmable power supply for field programmable gate array modules |
| CN101957410A (en) * | 2010-09-03 | 2011-01-26 | 尹东山 | Personal laboratory system integrating device |
| CN201837866U (en) * | 2010-10-09 | 2011-05-18 | 无锡市同舟电子实业有限公司 | Modular power source capable of adjusting voltage output |
| CN102346464A (en) * | 2011-06-14 | 2012-02-08 | 武汉科技大学 | 0-20mA or 4-20mA direct current analog quantity output device |
| CN203025276U (en) * | 2012-12-28 | 2013-06-26 | 江长海 | Tester of capacitive touch screen module |
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2013
- 2013-07-31 CN CN201310325878.8A patent/CN103345238B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1233328A2 (en) * | 2001-02-16 | 2002-08-21 | Nallatech, Ltd. | Programmable power supply for field programmable gate array modules |
| CN101957410A (en) * | 2010-09-03 | 2011-01-26 | 尹东山 | Personal laboratory system integrating device |
| CN201837866U (en) * | 2010-10-09 | 2011-05-18 | 无锡市同舟电子实业有限公司 | Modular power source capable of adjusting voltage output |
| CN102346464A (en) * | 2011-06-14 | 2012-02-08 | 武汉科技大学 | 0-20mA or 4-20mA direct current analog quantity output device |
| CN203025276U (en) * | 2012-12-28 | 2013-06-26 | 江长海 | Tester of capacitive touch screen module |
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| CN103345238B (en) | 2015-08-19 |
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