CN204423772U - A kind of portable DSP experiment porch - Google Patents
A kind of portable DSP experiment porch Download PDFInfo
- Publication number
- CN204423772U CN204423772U CN201520096571.XU CN201520096571U CN204423772U CN 204423772 U CN204423772 U CN 204423772U CN 201520096571 U CN201520096571 U CN 201520096571U CN 204423772 U CN204423772 U CN 204423772U
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- experiment porch
- portable
- dsp experiment
- functional module
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Abstract
The utility model relates to a kind of teaching experiment system, especially a kind of portable DSP experiment porch.Described portable DSP experiment porch adopts substrate and core cpu plate two-tier system, described substrate comprises following functional module: cpu i/f unit, power supply unit, DDS signal source unit, TFT liquid crystal display unit, LED display unit, 8 bit digital quantity input-output units, matrix press-key unit, D/A converting unit, A/D converting unit, radio-frequency card recognition unit, RS232 serial port unit, CAN/RS485 bus unit and power amplifier unit, each functional module adopts open connection, is arranged to be connected with core cpu plate or independent open uses by toggle switch.The each functional module of substrate of described DSP experiment porch is separate, and total interface is all opened to the outside world, user in use can to each module flexible combination to realize different functions, can the expansion of implementation platform function easily, provides safeguard to the secondary development of platform.
Description
Technical field
The utility model relates to a kind of teaching experiment system, especially a kind of portable DSP experiment porch.
Background technology
Existing DSP experiment porch volume is comparatively large, is inconvenient to carry; Only by ac power supply, use is subject to certain restrictions; The line of each functional module and CPU element is fixed, and extensibility is poor.
Summary of the invention
For the weak point of above-mentioned technology, the utility model provides a kind of DSP experiment porch be convenient for carrying.
A kind of portable DSP experiment porch, described platform adopts substrate and core cpu plate two-tier system, described substrate comprises following functional module: cpu i/f unit, power supply unit, DDS signal source unit, TFT liquid crystal display unit, LED display unit, 8 bit digital quantity input-output units, matrix press-key unit, D/A converting unit, A/D converting unit, radio-frequency card recognition unit, RS232 serial port unit, CAN/RS485 bus unit and power amplifier unit, each functional module adopts open connection, arranged by toggle switch and to be connected with core cpu plate or independent open uses.
Further, at least one core cpu plate supported by described platform, can change core cpu plate as required.
Further, the built-in chargeable polymer Li-ion rechargeable battery of described portable DSP experiment porch, civil power and internal battery dual power supply can be adopted, meet the portable needs of some special occasions, and each functional module is all provided with independent current source switch in platform, the no functional module of convenient closedown is to save electricity.
Further, described DDS signal source unit have employed the signal source circuit based on DDS chip.
Further, described LED display unit have employed " rice " font LED charactron.
Further, described D/A converting unit, A/D converting unit debug high precision analogue and D/A converting circuit for user.
Further, the battery electric quantity that described DDS signal source is built-in to portable DSP experiment porch carries out Real-Time Monitoring and display.
The beneficial effects of the utility model are: described DSP experiment porch adopts substrate and CPU board two-tier system, in substrate, each functional module is separate, and total interface is all opened to the outside world, user in use can to each module flexible combination to realize different functions, can the expansion of implementation platform function easily, the secondary development of platform is provided safeguard; The CPU board that compatible TMS320F2000 and TMS320C5000 two kinds of platform is serial simultaneously, when not needing to change any configuration, changes the related experiment that CPU board can be the dissimilar DSP of TI company.
In addition, this experiment porch is applicable to theory and the experimental teaching of the relevant specialities such as electronic information, communication, signal transacting, computing machine, observing and controlling, the scientific research task doing relevant speciality for teacher is offered help, simultaneously also for undergraduate Electronic Design Competition, graduation project and comprehensive design experiment provide platform.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
A kind of portable DSP experiment porch, described platform adopts substrate and core cpu plate 1 two-tier system, described substrate comprises following functional module: cpu i/f unit 2, power supply unit 3, DDS signal source unit 4, TFT liquid crystal display unit 5, LED display unit 6, 8 bit digital quantity input-output units 7, matrix press-key unit 8, D/A converting unit 9, A/D converting unit 10, radio-frequency card recognition unit 11, RS232 serial port unit 12, CAN/RS485 bus unit 13 and power amplifier unit 14, each functional module adopts open connection, arranged by toggle switch and to be connected with core cpu plate or independent open uses.
1, power supply unit 3: the built-in chargeable polymer Li-ion rechargeable battery of platform, civil power and internal battery dual power supply can be adopted, meet the portable needs of some special occasions, and each functional module is all provided with independent current source switch in platform, the no functional module of convenient closedown is to save electricity.
1) power according to electric main, with AC power cord, experiment porch is connected with 220V electric main, open the AC power master switch of experiment porch, afterwards interchange/battery single-pole double-throw switch (SPDT) is allocated to AC power side, now+5V AC power pilot lamp and+3.3V pilot lamp are lit, power supply unit and exportable+5V and+3.3V voltage.
2) power according to lithium polymer battery, then cell switch is beaten to the right, time afterwards, interchanges/battery single-pole double-throw switch (SPDT) is allocated to battery side, now+5V Battery Indicator Light and ten 3.3V pilot lamp are lit, power supply unit and exportable+5V and+3.3V voltage.
3) if desired charge the battery, with AC power cord, experiment porch is connected with 220V electric main, open AC power master switch afterwards.The red charging indicator light be now positioned on the left of switch is lighted, and indicates currently to charge the battery; If battery electric quantity is full of, then the green indicating lamp be positioned at below red charging indicator light is lighted.Note, when platform adopts electric main to power, also can charge to battery.
4) circuit has drawn the power interface of 4 tunnel+5V and the power interface of 4 tunnel+3.3V, can for other circuit outside experiment porch.
2,8 bit digital quantity input-output units 7: the button that platform adopts and LED are integrated into one, consider the portable needs of platform and design.8 toggle switchs on the left of TFT liquid crystal display unit lower right, are used for the mode of connection of control 8 bit switch, and when switch is all allocated to upper, switch is connected with DSP core board; When under switch is all allocated to, circuit can depart from CPU board and independently use, and its keystroke interface of 8 is drawn by its external interface.8 toggle switchs on the right side of TFT liquid crystal display unit lower right, are used for the mode of connection of control 8 LED, and when switch is all allocated to upper, LED and DSP core board connects; When under switch is all allocated to, circuit can depart from CPU board and independently use, and its LED interface of 8 is drawn by its external interface.Single-pole double-throw switch (SPDT) on the left of unit is used for the selection of level state when button is pressed, and switch is dialled and exports as high level, and switch is set aside and exported as low level.The selection of magnitude of voltage when switch on the right side of unit is for exporting high level, the high level voltage exported dialled by switch is+5V, and the high level voltage that output set aside by switch is+3.3V.
3, matrix press-key unit 8: form 4 × 4 matrix keyboards by 16 buttons, this button total interface is all opened to the outside world, can independently use, and also can be used for the frequency values setting of DDS signal source.Control its connected mode by the toggle switch below DDS signal source unit, when toggle switch is all upwards dialled, matrix press-key is used for the setting of DDS signal source frequency; When toggle switch is all to when setting aside, matrix press-key independently uses, and define the function of each button by programming, its keystroke interface of 8 is drawn by its external interface.
Further, at least one core cpu plate 1 supported by described platform, can change core cpu plate 1 as required.
Further, described DDS signal source unit 4 have employed the signal source circuit based on DDS chip.
Further, described LED display unit 6 have employed " rice " font LED charactron.
Further, described D/A converting unit 9, A/D converting unit 10 debug high precision analogue and D/A converting circuit for user.
Further, the battery electric quantity that described DDS signal source 4 pairs of portable DSP experiment porchs are built-in carries out Real-Time Monitoring and display.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a portable DSP experiment porch, it is characterized in that, described platform adopts substrate and core cpu plate two-tier system, described substrate comprises following functional module: cpu i/f unit, power supply unit, DDS signal source unit, TFT liquid crystal display unit, LED display unit, 8 bit digital quantity input-output units, matrix press-key unit, D/A converting unit, A/D converting unit, radio-frequency card recognition unit, RS232 serial port unit, CAN/RS485 bus unit and power amplifier unit, each functional module adopts open connection, arranged by toggle switch and to be connected with core cpu plate or independent open uses.
2. portable DSP experiment porch according to claim 1, is characterized in that, the built-in chargeable polymer Li-ion rechargeable battery of described power supply unit.
3. portable DSP experiment porch according to claim 1, is characterized in that, at least one core cpu plate supported by described platform, can change core cpu plate as required.
4. portable DSP experiment porch according to claim 1, is characterized in that, described DDS signal source unit have employed the signal source circuit based on DDS chip.
5. portable DSP experiment porch according to claim 1, is characterized in that, described LED display unit have employed " rice " font LED charactron.
6. portable DSP experiment porch according to claim 1, is characterized in that, described D/A converting unit, A/D converting unit debug high precision analogue and D/A converting circuit for user.
7. portable DSP experiment porch according to claim 1, is characterized in that, the described DDS signal source battery electric quantity built-in to portable DSP experiment porch carries out Real-Time Monitoring and display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520096571.XU CN204423772U (en) | 2015-02-11 | 2015-02-11 | A kind of portable DSP experiment porch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520096571.XU CN204423772U (en) | 2015-02-11 | 2015-02-11 | A kind of portable DSP experiment porch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204423772U true CN204423772U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520096571.XU Expired - Fee Related CN204423772U (en) | 2015-02-11 | 2015-02-11 | A kind of portable DSP experiment porch |
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| Country | Link |
|---|---|
| CN (1) | CN204423772U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992595A (en) * | 2015-07-03 | 2015-10-21 | 中国电子科技集团公司第四十一研究所 | Teaching experiment circuit capable of reducing cable assembly connection |
| CN108520683A (en) * | 2018-04-11 | 2018-09-11 | 广东松山职业技术学院 | The shared single platform experimental teaching unit of more kernels |
-
2015
- 2015-02-11 CN CN201520096571.XU patent/CN204423772U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104992595A (en) * | 2015-07-03 | 2015-10-21 | 中国电子科技集团公司第四十一研究所 | Teaching experiment circuit capable of reducing cable assembly connection |
| CN104992595B (en) * | 2015-07-03 | 2018-02-13 | 中国电子科技集团公司第四十一研究所 | A kind of teaching experiment circuit for reducing connecting cable component |
| CN108520683A (en) * | 2018-04-11 | 2018-09-11 | 广东松山职业技术学院 | The shared single platform experimental teaching unit of more kernels |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20180211 |