CN103176419A - DSP (digital signal processing) control board compatible with TMS320F28x series - Google Patents
DSP (digital signal processing) control board compatible with TMS320F28x series Download PDFInfo
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- CN103176419A CN103176419A CN2013100819850A CN201310081985A CN103176419A CN 103176419 A CN103176419 A CN 103176419A CN 2013100819850 A CN2013100819850 A CN 2013100819850A CN 201310081985 A CN201310081985 A CN 201310081985A CN 103176419 A CN103176419 A CN 103176419A
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Abstract
The invention belongs to the technical field of current transformer control, and relates to a DSP (digital signal processing) control board compatible with a TMS320F28x series. The DSP control board comprises a DSP2812 minimum system board, a DSP28335 minimum system board and a bottom board. The DSP2812 minimum system board and the DSP28335 minimum system board can be connected with the bottom board separately. The DSP2812 minimum system board comprises a TMS320F2812 control chip, a reset circuit, a JTAG (joint test action group) download port, an external expansion RAM (random access memory), an external expansion Flash and external expansion pin interfaces, the reset circuit, the JTAG download port, the external expansion RAM, the external expansion Flash and the external expansion pin interfaces are all connected with the TMS320F2812 control chip, the reset circuit provides reset signals for the control chip, the external expansion RAM and the external expansion Flash are used for expanding program codes and compiled code memory space of the DSP control chip respectively, and an IS6ILV51216 chip is adopted to the external expansion RAM while an SST39VF800 chip is adopted to the external expansion Flash. The DSP control board has the advantages that compatibility is realized, requirement on DSP self function maximization is met, and complex algorithm control in the field of new energy such as wind power is achieved.
Description
Technical field
The invention belongs to current transformer control technology field, a kind of DSP control panel of compatible TMS320F28x series particularly is provided, be applicable to the new-energy grid-connected such as Electric Machine Control, wind-power electricity generation field converter control system, this control panel has the DSP function of compatible TI company's T MS320F28x series, complete function has good dirigibility, compatibility, selectivity and applicability.
Background technology
At present, DSP has the characteristics such as computing power, versatility and dirigibility of high speed processing complexity, and DSP is very extensive in Facing Digital control and motion control field application, the current transformer such as the new forms of energy such as Electric Machine Control, wind-powered electricity generation control field.Traditional DSP control panel is generally to use monolithic DSP(Digital Signal Processing, digital signal processing) chip is as control core, and DSP control chip and control panel are welded and fixed together.When usually experiment is used, can occur that control chip in use burns out or the problem such as renewal.
(1) when control chip burns out, need to change control chip for original, and when on control panel, the peripheral interface circuit of control chip does not need change conditions, but because control chip and control panel are welded and fixed together, still need to change whole control panel.
(2) control object changes, perhaps control chip DSP insufficiency of function is satisfied controls when requiring, such as needs use isonomic precision and the higher dsp chip of speed, due to the ability that does not possess compatible homologous series DSP control chip of control panel, also need structure and the line of control panel are readjusted.
Above two kinds of common situations all need control panel is changed.Embody that traditional control panel utilization factor is low, very flexible, do not possess compatibility and the deficiency such as systemic-function is incomplete.Thereby cause the problems such as the wasting of resources, design iterations, construction cycle length.
Summary of the invention
The object of the invention is to propose a kind of DSP control panel of compatible TMS320F28x series, solved the wasting of resources, design iterations, construction cycle length, very flexible, do not possessed the problems such as the similar homologous series control chip of compatible pin function.Realize compatibility, and satisfied the maximization of DSP self function, satisfied simultaneously the control requirement of friction speed and precision, realized the complicated algorithm control of the new energy fields such as wind-powered electricity generation.
The control chip of the C2000 series TMS320F28x of the compatible TI of this control panel energy company, and using much more relatively fixed point cake core TMS320F2812 and floating type TMS320F28335 as example in TMS320F28x, the design of control panel compatibility is described.
The present invention includes DSP2812 minimum system plate, DSP28335 minimum system plate and base plate.DSP2812 minimum system plate can be connected with base plate separately with DSP28335 minimum system plate.Be base plate compatible DSP2812 minimum system plate and DSP28335 minimum system plate simultaneously.
DSP2812 minimum system plate comprises that TMS320F2812 control chip, reset circuit, JTAG download mouth, extend out RAM, extend out Flash, extend out pin interface.Reset circuit, JTAG download mouthful, extend out RAM, extend out Flash, extend out pin interface all is connected with the TMS320F2812 control chip.Reset circuit provides reset signal for control chip.Extend out RAM, extend out Flash and be respectively DSP control chip extender code and compiled code storage space, extend out RAM and adopt the IS6ILV51216 chip, what extend out that Flash adopts is the SST39VF800 chip.Extend out the pin that pin interface extends out the TMS320F2812 control chip and comprise address bus, data bus, pwm signal, CAP/EQEP signal, ADC, SCI, McBSP, CAN, SPI, read-write chip selection signal, look-at-me, power supply signal.
The pin interface that extends out of DSP2812 minimum system plate and DSP28335 minimum system plate is two contact pin type interfaces, and the structure of two contact pin type interfaces is identical.Contrast the pin that extends out of DSP2812 minimum system plate and DSP28335 minimum system plate, incomplete same.DSP2812 minimum system plate and DSP28335 minimum system plate to extend out the function that major part in pin interface extends out pin be identical, and have compatible characteristics, only have the minority pin incompatible.The pin that extends out of DSP2812 and DSP28335 minimum system plate respectively is divided into two classes: homogeny pin and otherness pin.In extending out pin, the same class pin that function is identical, and quantity is also identical, is the homogeny pin with this class pinout, has compatible characteristics, for example: address bus A[0..18], data bus D[0..15] etc. extend out pin.Also having the minority pin not have compatible characteristics, is the otherness pin with this class pinout, and this class pin has three characteristics: 1) DSP2812 has the pin of this type of function, and DSP28335 does not have; 2) DSP38335 has the pin of this type of function, and DSP2812 does not have; 3) DSP2812 and DSP28335 have the pin of this type of function, but have quantitative difference, this type of functional pin that quantitatively has more.So according to the classification that extends out pin, the pin interface that extends out of DSP2812 minimum system plate can be divided into homogeny pin field and otherness pin field, in like manner, also the pin interface that extends out of DSP28335 minimum system plate can be divided into homogeny pin field and otherness pin field.
Base plate comprises FPGA (Field-Programmable Gate Array, field programmable gate array) chip, peripheral circuit and slot.Because the pin interface that extends out of minimum system plate is connected with the slot of base plate, extend out pin interface and be divided into homogeny pin field and otherness pin field, corresponding, the slot of base plate is divided into homogeny pin field and otherness pin field two parts.In slot, otherness pin field part is connected with FGPA, and FPGA is connected with peripheral circuit again.In slot, the pin field of homogeny directly is connected with peripheral circuit.
This connected mode makes the base plate compatible DSP2812 minimum system plate of energy and DSP28335 minimum system plate.The minimum system plate extends out the pin (being incompatible pin) of otherness in pin interface and guides the IO mouth of fpga chip by slot into, then is connected with peripheral circuit by the IO mouth of fpga chip.Because FPGA has hardware programmable, make the otherness pin can optionally be connected with peripheral circuit by FPGA, thereby arrive compatible purpose.That FPGA adopts is EP3C80, is the third generation product of the ATERAL Cyclone of company series.
Control panel adopts up and down lamination, separable structure, the upper strata is DSP2812 minimum system plate or DSP28335 minimum system plate, and lower floor is base plate, and the pin interface that extends out of two contact pin types is arranged at upper strata minimum system plate bottom, be inserted on the slot of lower floor's base plate, can mutually make up and separate.Can change different DSP minimum systems according to the needs that difference is controlled.
The beneficial effect that the present invention compares with existing control panel is that control panel has good dirigibility, selectivity and compatibility, complete function.Thereby needing in above-mentioned two situations effectively to avoid the problem to the control panel redesign, overcome very flexible in traditional control panel, do not possessed the deficiency of the similar homologous series control chip of compatible pin function.
Description of drawings
Fig. 1 is the functional unit schematic diagram of DSP minimum system plate.
Fig. 2 is base plate functional unit schematic diagram.
Fig. 3 is control panel structure vertical view.
Fig. 4 is control panel structure front elevation.
Fig. 5 is extended pin zone division schematic diagram.
Fig. 6 is base plate catenation principle schematic diagram.
Embodiment
The present invention includes DSP2812 minimum system plate, DSP28335 minimum system plate and base plate.DSP2812 minimum system plate can be connected with base plate separately with DSP28335 minimum system plate.Be base plate compatible DSP2812 minimum system plate and DSP28335 minimum system plate simultaneously.
1, specific embodiments is set forth:
The object of the invention is to propose a kind of DSP control panel design of compatible TMS320F28x series, the control chip of the C2000 series TMS320F28x of the compatible TI of this control panel energy company, and using much more relatively fixed point cake core TMS320F2812 and floating type TMS320F28335 as example in TMS320F28x, the design of control panel compatibility is described.
2, the present invention is described in further detail on principle below in conjunction with accompanying drawing
Fig. 1 and Fig. 2 are control panel functional unit schematic diagram.As shown in the figure, Fig. 1 is the functional unit schematic diagram of DSP minimum system plate, and Fig. 2 is base plate functional unit schematic diagram.DSP minimum system unit comprises that mainly reset circuit, JTAG download mouth, extend out RAM, extend out Flash, extend out pin interface, and base plate is mainly to comprise fpga chip, slot, peripheral circuit.
Compatibility to control panel on following structure and principle describes
(1) on structure
Fig. 3 and Fig. 4 are the control panel structural representation, (Fig. 3 is vertical view, Fig. 4 front elevation).What control panel adopted is lamination, separable structure.The upper strata is DSP2812 minimum system plate or DSP28335 minimum system plate, and lower floor is base plate, and the pin interface that extends out of two contact pin types is arranged at upper strata minimum system plate bottom, is inserted on the slot of lower floor's base plate.This structure can be changed the minimum system plate on upper strata easily, satisfies the purpose of base plate compatibility on structure.
(2) on principle
DSP2812 minimum system plate and DSP28335 minimum system plate are extended out in pin interface, the homogeny pin has compatible characteristics, directly cause peripheral circuit, and extend out the pin of otherness in pin, do not have compatibility, need to guide by backplane slot the IO mouth of fpga chip into, IO mouth by fpga chip causes peripheral circuit again, only need to carry out hardware programming to fpga chip, make the pin that extends out otherness in pin interface, repeat optionally to be connected with peripheral circuit, reach the purpose of base plate.The below is the implementation step of concrete operations.
At first according to the definition of above-mentioned homogeny and otherness, DSP2812 minimum system plate and DSP28335 minimum system plate are extended out the pin classification, pin interface be will extend out according to classification again and homogeny pin field and otherness pin field will be divided into, as shown in Figure 5, at last by reference to the accompanying drawings 6, base plate catenation principle schematic diagram is described, reaches the purpose of compatible DSP2812 minimum system plate and DSP28335 minimum system plate.
As shown in Figure 5, the extended pin interface is two contact pin type interfaces, is divided into homogeny pin field and otherness pin field, and wherein dash area is the otherness pin field.When design DSP3812 and DSP28335 minimum system plate, carry out rational cabling layout to extending out pin, the pin interface that extends out of minimum system plate can be divided into homogeny pin field and otherness pin field.Because the pin interface that extends out of minimum system plate is inserted on backplane slot, corresponding, the slot of base plate also is divided into the pin field of homogeny and the pin field of otherness.
Fig. 6 is base plate catenation principle schematic diagram, and the below describes Fig. 6.
Backplane slot is divided into homogeny pin field and function difference pin field, and this two classes pin is carried out respectively different connections:
1) pin of homogeny connects
These pins itself are the compatible characteristics that have, and directly are connected with the base plate peripheral circuit.
2) pin of otherness connects
This class pin does not possess compatible characteristics, need to guide by backplane slot the IO mouth of fpga chip into, and then is connected with peripheral circuit through the IO mouth of fpga chip.By fpga chip is carried out hardware programming, can be so that the minimum system plate extends out the otherness pin of pin interface to be connected with peripheral circuit flexibly selectively by fpga chip, thus make the DSP that control panel can compatible two TMS320F28x series.
Beneficial effect:
The present invention can be compatible TMS320F28x series two control chip, satisfy the control requirement of friction speed and precision.Have good dirigibility, selectivity, compatibility and applicability, complete function.
Claims (3)
1. the DSP control panel of a compatible TMS320F28x series, is characterized in that, comprises DSP2812 minimum system plate, DSP28335 minimum system plate and base plate; DSP2812 minimum system plate is connected with base plate separately with DSP28335 minimum system plate; Be base plate compatible DSP2812 minimum system plate and DSP28335 minimum system plate simultaneously;
DSP2812 minimum system plate comprises that TMS320F2812 control chip, reset circuit, JTAG download mouth, extend out RAM, extend out Flash, extend out pin interface; Reset circuit, JTAG download mouthful, extend out RAM, extend out Flash, extend out pin interface all is connected with the TMS320F2812 control chip; Reset circuit provides reset signal for control chip.Extend out RAM, extend out Flash and be respectively DSP control chip extender code and compiled code storage space,
The pin interface that extends out of DSP2812 minimum system plate and DSP28335 minimum system plate is two contact pin type interfaces, and the structure of two contact pin type interfaces is identical.Contrast the pin that extends out of DSP2812 minimum system plate and DSP28335 minimum system plate, incomplete same;
Base plate comprises fpga chip, peripheral circuit and slot; The pin interface that extends out of minimum system plate is connected with the slot of base plate, extends out pin interface and is divided into homogeny pin field and otherness pin field, and corresponding, the slot of base plate is divided into homogeny pin field and otherness pin field two parts; In slot, otherness pin field part is connected with FGPA, and FPGA is connected with peripheral circuit again; In slot, the pin field of homogeny directly is connected with peripheral circuit;
This connected mode makes the base plate compatible DSP2812 minimum system plate of energy and DSP28335 minimum system plate; The minimum system plate extends out the pin of otherness in pin interface and guides the IO mouth of fpga chip by slot into, then is connected with peripheral circuit by the IO mouth of fpga chip; Because FPGA has hardware programmable, make the otherness pin can optionally be connected with peripheral circuit by FPGA, arrive compatible purpose.
2. DSP control panel according to claim 1, is characterized in that, extends out RAM and adopt the IS6ILV51216 chip, and what extend out the Flash employing is the SST39VF800 chip; Extend out the pin that pin interface extends out the TMS320F2812 control chip and comprise address bus, data bus, pwm signal, CAP/EQEP signal, ADC, SCI, McBSP, CAN, SPI, read-write chip selection signal, look-at-me, power supply signal.
3. DSP control panel according to claim 1, is characterized in that, that FPGA adopts is EP3C80.
Control panel adopts up and down lamination, isolating construction, the upper strata is DSP2812 minimum system plate or DSP28335 minimum system plate, lower floor is base plate, the pin interface that extends out of two contact pin types is arranged at minimum system plate bottom, upper strata, be inserted on the slot of lower floor's base plate, realize combination mutually and separate, change different DSP minimum systems according to the needs that difference is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081985.0A CN103176419B (en) | 2013-03-14 | 2013-03-14 | The DSP control panel of compatible TMS320F28x series |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310081985.0A CN103176419B (en) | 2013-03-14 | 2013-03-14 | The DSP control panel of compatible TMS320F28x series |
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| CN103176419A true CN103176419A (en) | 2013-06-26 |
| CN103176419B CN103176419B (en) | 2015-10-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104111622A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Mechanical equipment and operation box thereof |
| CN105739348A (en) * | 2014-12-08 | 2016-07-06 | 上海机电工程研究所 | Embedded system control circuit based on DSP |
| CN107966925A (en) * | 2017-11-15 | 2018-04-27 | 北京理工大学 | A kind of high-precision multiple signals data testing system and test method based on DSP28335 |
| CN110413550A (en) * | 2018-04-27 | 2019-11-05 | 北京天诚同创电气有限公司 | A kind of chip serial ports program downloading control circuit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104111622A (en) * | 2014-06-16 | 2014-10-22 | 福建睿能科技股份有限公司 | Mechanical equipment and operation box thereof |
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| CN105739348A (en) * | 2014-12-08 | 2016-07-06 | 上海机电工程研究所 | Embedded system control circuit based on DSP |
| CN107966925A (en) * | 2017-11-15 | 2018-04-27 | 北京理工大学 | A kind of high-precision multiple signals data testing system and test method based on DSP28335 |
| CN110413550A (en) * | 2018-04-27 | 2019-11-05 | 北京天诚同创电气有限公司 | A kind of chip serial ports program downloading control circuit |
| CN110413550B (en) * | 2018-04-27 | 2022-02-25 | 北京天诚同创电气有限公司 | Chip serial port program downloading control circuit |
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| CN103176419B (en) | 2015-10-21 |
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