CN201293935Y

CN201293935Y - Embedded digital signal processing module

Info

Publication number: CN201293935Y
Application number: CNU2008202225673U
Authority: CN
Inventors: 李文峰; 韩非; 韩晓冰; 王山伟
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2008-11-24
Filing date: 2008-11-24
Publication date: 2009-08-19
Anticipated expiration: 2018-11-24

Abstract

The utility model discloses an embedded digital signal processing module, which comprises a control unit, an expansion storage unit, pluralities of functional module expansion pins and a power supply unit, wherein a plurality of functional modules are integrated in the control unit, the expansion storage unit is connected with the control unit, the functional module expansion pins are respectively connected with the control unit, and the power supply unit connected with an external power supply correspondingly converts power signals input by the external power supply. The power supply unit is connected with the control unit and the expansion storage unit respectively, and the functional module expansion pins are respectively connected with external interfaces of the functional modules. The utility model is simple in structure, flexible in use, reliable in property and high in cost performance, and can fast, simply, conveniently and reliably realize various industry control functions with low cost.

Description

The embedded digital signal processing module

Technical field

The utility model relates to the industrial control technology field, especially relates to a kind of embedded digital signal processing module that is applicable in the fields such as industrial automation control, Power Electronic Technique application, intelligent instrumentation and motor, motor servo-control system.

Background technology

In industrial control field, the application of digital signal processor such as DSP2812 is very extensive, as industrial automation control, motor servo-control system etc.Because this chip has a large amount of peripheral hardware resources, as: A/D, timer, various serial ports (synchronously with asynchronous), WATCHDOG, CAN bus, PWM generator, Digital I pin etc., be to use optimized DSP at control, in all DSP of TI, have only C2000 that FLASH is arranged, also having only this series that asynchronous serial port is arranged can be that asynchronous reception/dispensing device links to each other with the UART of PC; And DSP2812 is a low price, high performance chips.But also do not have DSP embedded 2812 modules in the market, have only the DSP2812 development board.Enterprise must design DSP2812 and relevant control voluntarily in order to do the DSP2812 Related product, needs.Enterprise has to drop into a large amount of funds and lot of manpower and material resources and carries out DSP2812 and relevant control design or system transplantation in order to do the DSP2812 Related product, and the system that has done also may not stablize.

Minority manufacturer production DSP module is also arranged now, but all are dsp chips of C5000, C6000 series, C5000 series principal feature is low-power consumption, is fit to individual, portable online and wireless communications application etc.; C6000 series is celebrated with high-performance, is fit to the digital video application scene, and power consumption is bigger.Their shortcoming is all not have a large amount of peripheral hardware resources, is not suitable for industrial automation control, and the industrial control field of motor servo-control system etc. is used.

The utility model content

Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of embedded digital signal processing module is provided, it is simple in structure, use is flexible, dependable performance and cost performance height, can the multiple Industry Control function of quick, easy, reliable and low-cost realization.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of embedded digital signal processing module, it is characterized in that: comprise that inside is integrated with the control module of a plurality of functional modules, the extension storage unit that joins with control module, a plurality of functional modules expansion contact pins that join with control module and the power supply unit that joins and power supply signal that described external power supply is imported is carried out corresponding conversion with external power supply respectively, described power supply unit joins with control module and extension storage unit respectively, and described a plurality of functional modules expansion contact pins join with the external tapping of described a plurality of functional modules respectively.

Described control module inside is provided with the reset switch that it is carried out initial reset.

The clock signal input interface of described control module is provided with the signal testing point that institute's input clock signal is detected.

Described control module is 32 fixed-point DSP chip TMS320F2812.

Described control module is 32 fixed-point DSP chip TMS320F2812PGFA.

Described extension storage unit is made up of the outer FLASH storer of sheet of the outer high speed random access memory ram of a 64K * 16 bit slices and 256K * 16 high-performance and low-power consumption; Described power supply unit is made up of chip REG1117_3.3 and two low difference voltage regulators of chip REG1117A_1.8, described external power supply is+the 5V direct supply, described+5V direct supply a road through output+3.3V voltage behind the chip REG1117_3.3 and its another road output+1.8V voltage behind chip REG1117A_1.8.

Described high speed random access memory ram is memory I S61LV25616AL, and described FLASH storer is storer SST39VF400.

Described reset switch is the IMP811S chip.

Described a plurality of functional module comprises A/D conversion functional module, CAN bus functionality module, Motor Control functional module, liquid crystal display functional module, SPI communication function module, JTAG copying module, RS-232 serial communication function module, RS-485 serial communication function module, interrupt function module, SCI-A serial communication functional module, MCBSP multichannel buffer serial communication functional module and timer function module.

The utility model compared with prior art has the following advantages, 1, simple in structure, use flexibly and cost performance high; 2, dependable performance, can be according to user's needs, flexibly, fast, easy, reliably and at low cost realize multiple Industry Control function, comprise the A/D conversion, the CAN bus, Motor Control, liquid crystal display, SPI communication, JTAG emulation, the RS-232 serial communication, the RS-485 serial communication, interrupt, the SCI-A serial communication, serial communication of MCBSP multichannel buffer and timer are provided with or the like, for example when realizing the A/D translation function, the user only needs the signal of gathering is transferred to by contact pin interface the A/D input end of DSP2812, signal is after DSP2812 handles, can store storer into, also can go to control industrial system by output pin; When realizing the CAN bus functionality, user's setting of only need programming goes to control other industrial system with the CAN bus interface; When realizing the Motor Control function, the user expands the rotating speed that contact pin removes to control motor by programming by motor, can realize multiple Industry Control function by that analogy; 3, the reset switch by special setting plays the time spent and can restPose immediately, guarantees the continuity of DSP embedded module work; This reset switch can be monitored the dsp chip power supply simultaneously; 4, use is easy and simple to handle, in the use, only need and to be connected to the correlation function interface pin of control module on the corresponding functional module expansion contact pin, and each functional module expansion contact pin Position Design has avoided the user from chip-scale design circuit plate in the place that is user-friendly to, is convenient to draw like this; 5, applied widely, no matter in Industry Control, or the other technologies field, superior data-handling capacity is arranged all, and expansion there is jumbo storer, can have in harsh application that require at some outstanding performance be arranged.In a word, the utility model provide one flexible, quick, easy, reliable and cost performance is high can customized chemical industry control solution, the integration of the system of giving provides greater flexibility, in the actual use, the user only needs it is embedded in self the design and just can develop the Related product of realization difference in functionality, thereby has very high market using value and economic worth.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Fig. 1 is a schematic block circuit diagram of the present utility model.

Description of reference numerals:

The 1-control module; 2-extension storage unit; 3-functional module expansion contact pin; The 4-power supply unit.

Embodiment

As shown in Figure 1, the utility model comprises extension storage unit 2 that inside is integrated with the control module 1 of a plurality of functional modules, joins with control module 1, a plurality of functional modules expansion contact pins 3 that join with control module 1 respectively and the power supply unit 4 that joins and power supply signal that described external power supply is imported is carried out corresponding conversion with external power supply, described power supply unit 4 joins with control module 1 and extension storage unit 2 respectively, and described a plurality of functional modules expansion contact pins 3 join with the external tapping of described a plurality of functional modules respectively.Simultaneously, described control module 1 inside is provided with the reset switch that it is carried out initial reset; And the clock signal input interface of control module 1 is provided with the signal testing point that institute's input clock signal is detected.Described a plurality of functional module comprises A/D conversion functional module, CAN bus functionality module, Motor Control functional module, liquid crystal display functional module, SPI communication function module, JTAG copying module, RS-232 serial communication function module, RS-485 serial communication function module, interrupt function module, SCI-A serial communication functional module, MCBSP multichannel buffer serial communication functional module and timer function module.

Described control module 1 is 32 fixed-point DSP chip TMS320F2812.In the present embodiment, control module 1 is 32 fixed-point DSP chip MS320F2812PGFA.This chip has powerful digital signal processing function, incident management function and embedded Control function, have a large amount of peripheral hardware resources, as the A/D translation interface, the CAN bus interface, the Motor Control interface, LCD interface, SPI interface (communication Serial Peripheral Interface), the JTAG emulation interface, the RS-232 serial communication interface, the RS-485 serial communication interface, interrupt interface, the SCI-A serial communication interface, MCBSP multichannel buffer serial communication interface and timer interface etc., that is to say that dsp chip MS320F2812PGFA inside is integrated with above a plurality of functional module.In the actual use, only need and to be connected to the correlation function interface pin of control module 1 on the corresponding functional module expansion contact pin 3, and each functional module expansion contact pin Position Design is in the place that is user-friendly to, is convenient to draw.

Described extension storage unit 2 is made up of the outer FLASH storer of sheet of the outer high speed random access memory ram of a 64K * 16 bit slices and 256K * 16 high-performance and low-power consumption, can effectively enlarge memory capacity by extension storage unit 2, overcome the little deficiency of dsp chip MS320F2812PGFA interior storage capacity.In the present embodiment, described high speed random access memory ram is memory I S61LV25616AL, and described FLASH storer is storer SST39VF400.

Described power supply unit 4 is made up of chip REG1117_3.3 and two low difference voltage regulators of chip REG1117A_1.8, described external power supply is+the 5V direct supply, described+5V direct supply a road through output+3.3V voltage behind the chip REG1117_3.3 and its another road output+1.8V voltage behind chip REG1117A_1.8.In the actual use, the utility model only needs external 5V direct supply, and passes through this power supply unit 4 with regard to exportable control module 1 and extension storage unit 2 needed digital 3.3V power supplys, simulation 3.3V power supply and digital 1.8V power supply.

Described reset switch is the IMP811S chip, can effectively guarantee the continuity of the utility model work by this reset switch.

The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.

Claims

1. embedded digital signal processing module, it is characterized in that: comprise that inside is integrated with the control module of a plurality of functional modules (1), the extension storage unit (2) that joins with control module (1), a plurality of functional modules expansion contact pins (3) that join with control module (1) and the power supply unit (4) that joins and power supply signal that described external power supply is imported is carried out corresponding conversion with external power supply respectively, described power supply unit (4) joins with control module (1) and extension storage unit (2) respectively, and described a plurality of functional modules expansion contact pins (3) join with the external tapping of described a plurality of functional modules respectively.

2. according to the described embedded digital signal processing module of claim 1, it is characterized in that: described control module (1) inside is provided with the reset switch that it is carried out initial reset.

3. according to claim 1 or 2 described embedded digital signal processing modules, it is characterized in that: the clock signal input interface of described control module (1) is provided with the signal testing point that institute's input clock signal is detected.

4. according to the described embedded digital signal processing module of claim 2, it is characterized in that: described control module (1) is 32 fixed-point DSP chip TMS320F2812.

5. according to the described embedded digital signal processing module of claim 4, it is characterized in that: described control module (1) is 32 fixed-point DSP chip TMS320F2812PGFA.

6. according to claim 4 or 5 described embedded digital signal processing modules, it is characterized in that: described extension storage unit (2) is made up of the outer FLASH storer of sheet of the outer high speed random access memory ram of a 64K * 16 bit slices and 256K * 16 high-performance and low-power consumption; Described power supply unit (4) is made up of chip REG1117_3.3 and two low difference voltage regulators of chip REG1117A_1.8, described external power supply is+the 5V direct supply, described+5V direct supply a road through output+3.3V voltage behind the chip REG1117_3.3 and its another road output+1.8V voltage behind chip REG1117A_1.8.

7. according to the described embedded digital signal processing module of claim 6, it is characterized in that: described high speed random access memory ram is memory I S61LV25616AL, and described FLASH storer is storer SST39VF400.

8. according to claim 4 or 5 described embedded digital signal processing modules, it is characterized in that: described reset switch is the IMP811S chip.

9. according to claim 1 or 2 described embedded digital signal processing modules, it is characterized in that: described a plurality of functional modules comprise A/D conversion functional module, CAN bus functionality module, Motor Control functional module, liquid crystal display functional module, SPI communication function module, JTAG copying module, RS-232 serial communication function module, RS-485 serial communication function module, interrupt function module, SCI-A serial communication functional module, MCBSP multichannel buffer serial communication functional module and timer function module.