CN203133136U - Testing device based on FPGA - Google Patents
Testing device based on FPGA Download PDFInfo
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- CN203133136U CN203133136U CN 201220725454 CN201220725454U CN203133136U CN 203133136 U CN203133136 U CN 203133136U CN 201220725454 CN201220725454 CN 201220725454 CN 201220725454 U CN201220725454 U CN 201220725454U CN 203133136 U CN203133136 U CN 203133136U
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- processor
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Abstract
The utility model discloses a testing device based on an FPGA. The testing device based on the FPGA includes an amplifier, a first A/D converter, a second A/D converter, a processor, an LED display and a keyboard; the first A/D converter, the second A/D converter and the keyboard are respectively connected with input ends of the processor; an output end of the processor is connected with the LED display; and an output end of the amplifier is connected with the first A/D converter. Through utilizing the high processing ability of an FPGA chip and combining with the amplifier, the A/D converter devices and the like, the testing device based on the FPGA realizes the functions of an oscilloscope and a digital voltage meter. The testing device based on the FPGA is advantageous in few used components, simple circuit structure, small size, portable convenience, low development cost, and excellent effect.
Description
Technical field
The utility model relates to digital and electronic, Analog Electronics Technique field, is specifically related to a kind of palm proving installation based on FPGA.
Background technology
Oscillograph, digital multimeter etc. all are purposes electronic measuring instruments very widely.But all at a certain Specialty Design, perhaps function ratio is more single for these products.In order to run an experiment, need kinds of experiments equipment, the more important thing is that these equipment all are desk-top, the cost height, volume is big, carries inconvenience, leaves the laboratory work of just having no idea.Over past ten years, the size of the student body and the enrollment of each colleges and universities of China constantly enlarge, and have promoted the flourish of higher education, have also occurred some corresponding problems simultaneously.For example: laboratory scale is little, does not satisfy the requirement of student experimenting, and Course Exercise, graduation project lack place and equipment especially.Because the continuous increase of students' quantity has caused colleges and universities' educational resource shortage.
Summary of the invention
All be a certain specialty of deflection at present teaching equipment and instrument, perhaps function singleness, and these equipment all are desk-top, the cost height, volume is big, carries inconvenient defective, and the purpose of this utility model is, a kind of cheap, portable palm proving installation based on FPGA is provided, the function of oscillograph and voltage table is provided.
In order to realize above-mentioned task, the utility model is taked following solution:
A kind of proving installation based on FPGA, comprise amplifier, first A/D converter, second A/D converter, processor, light-emitting diode display and keyboard, wherein, first A/D converter, second A/D converter and keyboard are connected the input end of processor respectively, the output terminal of processor connects light-emitting diode display, and the output terminal of amplifier connects first A/D converter.
Other technologies characteristics of the present utility model:
Described amplifier adopts the LM358 operational amplifier.
Described first A/D converter adopts the TLC5510 converter.
Described second A/D converter adopts the ADC0809 converter.
Described processor adopting EP1C12Q240C chip.
This device utilizes the efficient processing power of fpga chip, and devices such as combining amplifier, A/D converter have been realized the function of oscillograph and digital voltmeter.This installs, and used device is few, and circuit structure is simple, and this device volume little, be easy to carry, cost of development is low, is effect palm experiment test device preferably.
Description of drawings
Fig. 1 is annexation synoptic diagram of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
Defer to technique scheme, present embodiment has provided a kind of proving installation based on FPGA, as shown in Figure 1, comprise amplifier, first A/D converter, second A/D converter, processor, light-emitting diode display and keyboard, wherein, first A/D converter, second A/D converter and keyboard are connected the input end of processor respectively, and the output terminal of processor connects light-emitting diode display, and the output terminal of amplifier connects first A/D converter.
In the present embodiment, amplifier adopts the LM358 operational amplifier.LM358 inside include two independently, the dual operational amplifier of high-gain, internal frequency compensation, being suitable for the very wide single supply of supply voltage scope uses, also be applicable to the dual power supply mode of operation, under the condition of work of recommending, source current and independent of power voltage.Its usable range comprises the occasion of the use operational amplifier of sensor amplifier, DC current gain module and other all available single power supplies.Amplifier inserts signal source in this device, plays the effect that signal amplifies.
First A/D converter adopts the TLC5510 converter, and TLC5510 is 8 half flash framework A/D converters of company of Texas Instruments (TI), adopts CMOS technology, significantly reduces the comparer number.The TLC5510 maximum can provide the sampling rate of 20Ms/s, and working power is 5V, and power consumption is 100mW.Built-in sampling hold circuit can be simplified periphery circuit design.This converter is used for signal is carried out analog to digital conversion.
Second A/D converter adopts ADC0809 converter, CMOS technology 8 passages, 8 successive approximation A/D analog to digital converters.There are 8 passage multi-way switchs its inside, and it can latch signal after the decoding according to address code, and one in a gating 8 road analog input signals is carried out the A/D conversion.
Described processor adopting EP1C12Q240C chip, this chip are a kind of fpga chips efficiently, and this chip internal comprises configurable logic blocks CLB, output load module IOB and three parts of interconnector.The logic of FPGA realizes by loading programming data to inner static storage cell, being stored in value in the memory cell has determined between the logic function of logical block and each module or the connecting mode between module and I/O, and final decision the FPGA function that can realize, this chip allows unlimited programming.
The effect of described keyboard is input oscillograph parameter, selection function etc.
This device connects the LM358 amplifier with outside source when realizing the oscillograph function.After this signal source is amplified shaping through the LE358 amplifier, send high-speed a/d converter TLC5510 to, after A/D converter carries out analog to digital conversion with signal, digital signal transfers is passed to the FPGA processor, to be further processed, the input signal source waveform after will handling then shows through light-emitting diode display.
When realizing the function of voltage table, analog DC voltage is connected the second A/D converter ADC0809, analog to digital converter ADC0809 is used for tested analog DC voltage is converted to digital quantity, fpga chip EP1C12Q240C is used for analog to digital conversion control and Measurement and Data Processing, and the voltage data that will obtain after will handling then shows by light-emitting diode display.Like this, digital D.C. voltmeter just can operate as normal.
The electronic devices and components that the utility model adopts are known product, and those skilled in the art are according to the i.e. concrete connected mode of electronic devices and components as can be known of the technical solution of the utility model.
Claims (5)
1. proving installation based on FPGA, it is characterized in that, comprise amplifier, first A/D converter, second A/D converter, processor, light-emitting diode display and keyboard, wherein, first A/D converter, second A/D converter and keyboard are connected the input end of processor respectively, the output terminal of processor connects light-emitting diode display, and the output terminal of amplifier connects first A/D converter.
2. the proving installation based on FPGA as claimed in claim 1 is characterized in that, described amplifier adopts the LM358 operational amplifier.
3. the proving installation based on FPGA as claimed in claim 1 is characterized in that, described first A/D converter adopts the TLC5510 converter.
4. the proving installation based on FPGA as claimed in claim 1 is characterized in that, described second A/D converter adopts the ADC0809 converter.
5. the proving installation based on FPGA as claimed in claim 1 is characterized in that, described processor adopting EP1C12Q240C chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725454 CN203133136U (en) | 2012-12-25 | 2012-12-25 | Testing device based on FPGA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725454 CN203133136U (en) | 2012-12-25 | 2012-12-25 | Testing device based on FPGA |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203133136U true CN203133136U (en) | 2013-08-14 |
Family
ID=48941107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725454 Expired - Fee Related CN203133136U (en) | 2012-12-25 | 2012-12-25 | Testing device based on FPGA |
Country Status (1)
| Country | Link |
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| CN (1) | CN203133136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306154A (en) * | 2015-09-25 | 2016-02-03 | 中国船舶重工集团公司第七二六研究所 | Emission detection unit based on FPGA (Field Programmable Gate Array) and implementation method thereof |
-
2012
- 2012-12-25 CN CN 201220725454 patent/CN203133136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105306154A (en) * | 2015-09-25 | 2016-02-03 | 中国船舶重工集团公司第七二六研究所 | Emission detection unit based on FPGA (Field Programmable Gate Array) and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHAANXI XINGCHEN ELECTRONICS TECHNOLOGY LLC Free format text: FORMER OWNER: CHANGAN UNIV. Effective date: 20150109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710064 XI'AN, SHAANXI PROVINCE TO: 710000 XI'AN, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150109 Address after: 710000 maple leaf building, hi tech Zone, Shaanxi, Xi'an Patentee after: Shaanxi stars Electronic Technology Co., Ltd. Address before: 710064 Xi'an Province, South Second Ring Road Patentee before: Changan Univ. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20161225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |