CN201156341Y - Multifunctional experiment development and teaching apparatus based on DSP chip - Google Patents

Abstract

The utility model provides a multi-functional experiment development teaching device based on DSP chips, belonging to the teaching electric equipment production field. The utility model is characterized in that a TMS320LF2407A core board M1, a TMS320VC5416 core board M2, a motor control module M3, a liquid crystal display module M4, a serial port communication module M5, a memory module M6, a USB communication module M7, a D/A conversion module M8, a indicator light and trigger switch module M9, an A/D conversion module M10, an aural signal sampling and processing module M11, an analogue signal generation module M12, an aural signal acquisition and playback module M13, keyboard module 14, and a power switch M15 are fixed on a bottom board M17 without direction connection with each other. The modules all comprise a conductive jack module M19. The modules of the utility model are independent comparatively, and can design and connect a plurality of circuits according to different task requirements by using the conductive jack modules M19 and the contact pin of a core unit board.

Description

Multi-functional experimental development instructional device based on dsp chip

Affiliated technical field

The utility model belongs to electronic equipment and makes field, the particularly sub-experimental facilities of teaching consuming energy.

Background technology:

Digital signal processor DSP (Digital Signal Processor) be a kind of novel, based on very large scale integration technology and computer technology, be applicable to the high speed multidigit one-chip computer that high-speed digital signal is handled.The DSP technology has been widely used in communication, voice, image, control automatically, measurement and various military affairs and the consumer electronics product, and the talent of DSP technology is badly in need of grasping in each research unit of society and enterprise at present.Domestic in recent years each big universities and colleges relevant speciality has all been offered DSP technology series course in succession, purpose is to understand the forward position knowledge of this subject in order to cultivate the student, grasp up-to-date, as to have using value most scientific theory and technology, cultivate creativity consciousness and integration capability, develop demand rapidly the talent to adapt to modern science and technology.

At present, be used for the teaching and experiment equipment of DSP experiment course on the market, hardware configuration is enclosed, and its all pin all adopts the mode of fixedlying connected with interface, and the user can not do any change, can not carry out the hardware design experiment.Therefore, experimental project only limits to the checking of algorithm and the form of software emulation.

The utility model content

The purpose of this utility model just is to overcome the deficiencies in the prior art, provides a kind of hardware configuration open, can finish the design of circuit and the experimental development device that is connected according to different mission requirementses.

The utility model includes casing M18, be fixed on the base plate M17 in the casing M18, be plugged on TMS320LF2407A core board M1 and TMS320VC5416 core board M2 that base plate M17 goes up does not also have the direct circuit connection with it, be fixed on base plate M17 go up mutually between the motor control module M3 of no direct circuit connection, LCD MODULE M4, be used for the serial communication modular M5 that is connected with PC, memory module M6, be used for the usb communication module M7 that is connected with PC, D/A modular converter M8, pilot lamp and trigger switch module M9, A/D modular converter M10, sampled audio signal processing module M11, simulating signal generation module M12, the audio collection playback module M13 of band loudspeaker, Keysheet module M14, power switch M15, conductive jack group M19; Wherein be connected by pin groups between TMS320LF2407A core board M1 and the base plate M17, be connected by pin groups between TMS320VC5416 core board M2 and the base plate M17, the part pin of TMS320LF2407A core board M1 and TMS320VC5416 core board M2 top chip directly connects contact pin, motor control module M3, LCD MODULE M4, be used for the serial communication modular M5 that is connected with PC, memory module M6, be used for the usb communication module M7 that is connected with PC, D/A modular converter M8, pilot lamp and trigger switch module M9, A/D modular converter M10, sampled audio signal processing module M11, simulating signal generation module M12, the audio collection playback module M13 of band loudspeaker, Keysheet module M14 contains the conduct thin M19 of conductive jack of the external circuit interface of module separately.

A slice model that TMS320LF2407A core board M1 comprises printed circuit board (PCB) and is fixed in the printed circuit board (PCB) relevant position is that the RAM chip U2 of the dsp chip U1 of TMS320LF2407A, two expansions, two 16 buses isolator U4,8 bi-directional transceiver U6 of a low-voltage, a Transistor-Transistor Logic level are to serial ports level shifting circuit U7, power supply chip U3, the chip U9 that resets, a CAN transmitter U10 who gives dsp chip periphery and kernel power supply usefulness; A slice model that TMS320VC5416 core board M2 comprises printed circuit board (PCB) and is fixed in relevant position on the printed circuit board (PCB) is the dsp chip U1 of TMS320VC5416, a logical circuit control chip U5, a power supply chip U3 who powers usefulness for the peripheral and kernel of dsp chip.

On TMS320LF2407A core board M1, the part pin of the RAM chip U2 of expansion, 16 buses isolator U4,8 bi-directional transceiver U6 of low-voltage, serial ports level shifting circuit U7, CAN transmitter U10 is communicated with the corresponding pin of dsp chip U1, and other part pins of 16 buses isolator U4 directly patch pin; On TMS320VC5416 core board M2, logical circuit control chip U5 is CPLD, the JTAG plug of the JTAG plug of dsp chip U1 and logical circuit control chip U5 is drawn with contact pin, and the A0-A5 of dsp chip U1, A12-A15 and 20-25 pin are communicated with 102～92,20～No. 25 pins of logical circuit control chip U5 respectively.

Motor control module M3 comprises a stepper motor that is fixed on this module base plate, a direct current generator, a buffer and two comparers; LCD MODULE M4 comprises the graphic lcd of a band GB Chinese word library that is fixed on this module base plate, a liquid crystal backlight lighteness regulator and a lcd contrast regulator; Serial communication modular M5 comprises the deserializer of the serial data of be fixed on this module base plate one coupling UART and the transmitting-receiving of DSP parallel data and a slice Transistor-Transistor Logic level conversion chip to the RS232 level; Memory module M6 comprises the high speed static RAM chip U8 that a slice that is fixed on this module base plate is used for system's running memory expansion, and a slice is used for the Flash chip U11 of programming DSP program, and a slice is used to deposit the NandFlash storer U12 of Large Volume Data; Usb communication module M7 comprises a slice USB interface chip and data transmission pilot lamp that is fixed on this module base plate; D/A modular converter M8 comprises one 3/8 code translator and D/A that is fixed on this module base plate; Pilot lamp and trigger switch module M9 comprise a d type flip flop that is fixed on this module base plate, eight pilot lamp and eight triggering buttons; A/D modular converter M10 comprises a simulating signal being fixed on this module base plate conversion chip to digital signal; High precision audio collection processing module M11 comprises an audio codec that is fixed on this module base plate; Simulating signal generation module M12 comprises an operational amplifier that is fixed on this module base plate, two waveform generators; Audio collection playback module M13 comprises an AD sampling A that is fixed on this module base plate, four high gain operational amplifiers, a rejection gate integrated circuit and a low-voltage sound signal amplifier.

Each module of the present utility model is relatively independent, the conductive jack group M19 by separately and the contact pin of core cell plate, the design that can finish multiple circuit according to different mission requirementses be connected experiment, comprise and carry out speech signal collection, processing and transmission experiment; Electric Machine Control experiment, and the experiment of CAN bus network.

Description of drawings:

Fig. 1 is the utility model one-piece construction figure;

Fig. 2 is the synoptic diagram of TMS320LF2407A core board M1;

Fig. 3 is the synoptic diagram of TMS320VC5416 core board M2;

Fig. 4 be RAM Flash Nandflash memory module synoptic diagram;

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.It is emphasized that the state of the art that is embodied as of majority circuit syndeton in the utility model, believe that those skilled in the art can independently realize according to corresponding principle, are not described in more detail in this article.

As seen from Figure 1, the utility model is exploitation, experiment, the tutoring system that has comprised TI company two big series of products, wherein 2 core boards are installed on the base by double or single contact pin, and these 2 core boards can be pulled down very easily, are used alone as algorithm development and experiment.Two blocks of functional unit plates have comprised concrete functional unit, and are relatively independent between each functional unit.

Ask for an interview Fig. 1 to 4, specific embodiment includes casing M18, be fixed on the base plate M17 in the casing M18, be plugged on TMS320LF2407A core board M1 and TMS320VC5416 core board M2 that base plate M17 goes up does not also have the direct circuit connection with it, be fixed on base plate M17 go up mutually between the motor control module M3 of no direct circuit connection, LCD MODULE M4, be used for the serial communication modular M5 that is connected with PC, memory module M6, be used for the usb communication module M7 that is connected with PC, D/A modular converter M8, pilot lamp and trigger switch module M9, A/D modular converter M10, sampled audio signal processing module M11, simulating signal generation module M12, the audio collection playback module M13 of band loudspeaker, Keysheet module M14, power switch M15, conductive jack group 19; Wherein be connected by pin groups between TMS320LF2407A core board M1 and the base plate M17, be connected by pin groups between TMS320VC5416 core board M2 and the base plate M17; Audio collection playback module M13, the Keysheet module M14 of motor control module M3, LCD MODULE M4, the serial communication modular M5, the memory module M6 that are used for being connected with PC, usb communication module M7, the D/A modular converter M8, pilot lamp and the trigger switch module M9 that are used for being connected with PC, A/D modular converter M10, sampled audio signal processing module M11, simulating signal generation module M12, band loudspeaker contains as the conductive jack group M19 of the external circuit interface of module separately.

TMS320LF2407A core board M1 is the minimum system of a TMS320LF2407A, and a slice model that comprises printed circuit board (PCB) and be fixed in the printed circuit board (PCB) relevant position is the dsp chip U1 of TMS320LF2407A, the RAM chip U2 of two expansions (model is CY7C1021), two 16 buses isolator U4 (model is SN74ALVTH16245), 8 bi-directional transceiver U6 of a low-voltage (model is 74LVX245), Transistor-Transistor Logic level is to the change-over circuit U7 (model is MAX232) of serial ports level, a power supply chip U3 (model is TPS7333) who gives dsp chip periphery and kernel power supply usefulness, the chip U9 that resets (model is MAX811), a CAN transmitter U10 (model is UC5350).Wherein, the RAM chip U2 of two expansions and dsp chip U1 are communicated with by 16 position datawires and 16 bit address lines, 89,93,84, No. 87 pins of dsp chip U1 respectively and read/write, the sheet of the RAM chip U2 of two expansions select control line to be communicated with, the concrete number of pins of all chips can be looked into the chip handbook, and the back will no longer illustrate.Two 16 buses isolator U4 and dsp chip U1 are communicated with by 16 position datawires, and 26,27,29,30,32,33,35,36,37,38,40,41,43,44,46, No. 47 pins of 16 buses isolator U4 are all guided on the contact pin; 13 of change-over circuit U7, No. 14 pin connects the 3rd of 9 needle serial ports respectively, No. 2 pins, No. 25 pins of No. 11 pins of U7 and U1 are communicated with, No. 14 pins of No. 12 pins of change-over circuit U7 and 8 bi-directional transceiver U6 of low-voltage are communicated with, No. 3 pins of 8 bi-directional transceiver U6 of low-voltage and No. 70 pins of dsp chip U1 are communicated with by 10K resistance, 6 of 8 bi-directional transceiver U6 of low-voltage, 2, No. 13 pins respectively with 26 of dsp chip U1,123, No. 121 pin is communicated with, reset No. 16 pins of No. 2 pins of chip U9 and 8 bi-directional transceiver U6 of low-voltage and No. 8 pins of power supply chip U3 are communicated with, No. 72 pins of No. 1 pin of CAN transmitter U10 and dsp chip U1 are communicated with, No. 17 pins of No. 4 pins of CAN transmitter U10 and 8 bi-directional transceiver U6 of low-voltage are communicated with, but other pin reference manual and reference circuits.This minimum system can carry out the experiment of RS232 serial communication, serial synchronous peripheral interface (SPI) communication experiment; Finish fast Flourier (FFT) conversion, FIR/IIR Design of Filter scheduling algorithm exploitation experiment, the experiment of CAN bus communication.

TMS320VC5416 core board M2 is the minimum system of a TMS320VC5416.TMS320VC5416 core board M2 comprises the dsp chip U1 that a slice model is TMS320VC5416; A logical circuit control chip U2 (model is XILINX95144XL); Give the power supply chip U3 (model is TPS767D301) that dsp chip U1 is peripheral and kernel is powered for one, the voltage that provides is respectively peripheral 3.3V, core 1.6V; The A0-A5 of dsp chip U1, A12-A15 and 20-25 pin are connected with 102～92,20～No. 25 pins of logical circuit control chip U2 respectively, the JTAG plug of the JTAG plug of dsp chip U1 and logical circuit control chip U2 is connected contact pin and draws, power supply chip U3 is 75K/210K according to chip handbook collocation resistance ratio, output 1.6V voltage, dsp chip U1 and logical circuit control chip U2 draw except that power supply and other pins the ground all are connected contact pin.This minimum system can be finished fast Flourier (FFT) conversion, FIR/IIR Design of Filter, image processing algorithm, Audio Signal Processing algorithm scheduling algorithm exploitation experiment.

Motor control module M3 comprises a stepper motor that is fixed on this module base plate, a direct current generator, a buffer (model is 74LS244) and two comparers (model is MAX942), 1, No. 7 pin of two comparers is linked the conductive jack group M19 of this module respectively by the resistance of 50 Ω, 3, No. 5 pins of two comparers are received 12,14,16, No. 18 pins of buffer respectively, and 2,4,6, No. 8 pins of buffer are connected respectively to the conductive jack group M19 of this module.This system can receive 1-4 road pulse waveform, and comes control step rotating speed of motor and corner by duty of ratio and frequency, and this module can be finished flow control experiment, the openings of sizes of coming by-pass valve control by the corner of accurate adjusting motor.

LCD MODULE M4 comprises the graphic lcd of be fixed on this module base plate one band GB Chinese word library, and (model is LCM12864ZK, resolution is 126 * 64, can show four lines, every row can show 8 Chinese characters), a liquid crystal backlight lighteness regulator and a lcd contrast regulator, the D0 of graphic lcd～D7 pin connects 8 buses, and the 6th, 7, No. 8 pin received the conductive jack group M19 of this module, and 19,20 connect the contrast adjustment device.This module can be used as literal, and the demonstration of picture is tested, and can be used as the output port of total system, and the real-time status of system is shown.

Serial communication modular M5 comprises with the deserializer (model is TL16C550C) of serial data that fixes on this module base plate one coupling UART and the transmitting-receiving of DSP parallel data and a slice Transistor-Transistor Logic level to RS232 level transferring chip (model is MAX232).This module is taked the method for expansion UART chip on the parallel bus of DSP, realizes the conversion of parallel data to serial data with the UART chip, to realize asynchronous data transfer.Wherein, 8 position datawires of TL16C550C chip link to each other with data bus, 14th, on No. 15 pins, its the 11st, 16,19,26,27,28,30, No. 35 pin guided to respectively on the conductive jack group M19 of this module, its No. 5 links to each other with No. 12 pin, 7th, No. 8 pins link to each other with the 12nd, No. 11 pin of MAX232 respectively, and the 13rd, No. 14 pin of MAX232 links to each other with the 3rd, No. 2 pin of standard DB9 serial port respectively.This module can be finished the serial communication experiment, and data transmission is tested, string and transition experiment, or cooperate other modules to do control mouthful usefulness.

Memory module M6 comprises a slice that is fixed on this module base plate and is used for the high speed static RAM chip U8 of system running memory expansion (model is IS61LV12816, specification is 128K * 16), a slice is used for the Flash chip U11 of programming DSP program, and (model is SST39VF800A, specification is 512K * 16), a slice is used to deposit the NandFlash storer U12 (model is K9F5608U0B, and capacity is 32M * 8) of Large Volume Data.17 address wire A0～A16 of high speed static RAM chip U8 link to each other by the corresponding pin of contact pin and DSP respectively, 16 data lines D0～D15 link to each other by 16 address wires of contact pin and DSP respectively, and the 6th, 17, No. 41 pin links to each other with CPLD by contact pin respectively; 19 address wire A0～A19 of Flash chip link to each other by 19 address wires of contact pin and DSP respectively, and 16 data lines D0～D15 link to each other by 16 address wires of contact pin and DSP respectively, and the 11st, 26, No. 28 pin links to each other with CPLD by contact pin respectively; 8 I/O mouths (I/O0-I/O7) of NandFlash chip link to each other with 8 bit data bus respectively, and the 7th, 8,9,16,17,18 pins are guided to respectively on the conductive jack group M19 of this module.As TMS320VC5416 chip internal 64K * can download to program on the expansion high speed static RAM of this module when 16 RAM are not enough; When we program burn writing to the Flash chip and the mode of operation of DSP when being set to the microcontroller mode of operation, experimental system just can break away from emulator autonomous operation program, this is to develop the state that the DSP product finally will reach; The effect of NandFlash chip is similar to flash memory, the various data that it can storage system work produces.

Usb communication module M7 comprises USB interface chip (model is PDIUSBD12) and data transmission pilot lamp that a slice that is fixed on this module base plate meets the USB1.1 agreement, the USB interface chip is the full speed USB interface device that has parallel bus, its 8 bit data pin is received on 8 bit data bus, and 11,14,15,16,20, No. 28 pins are connected respectively to the conductive jack group M19 of this module.The 8 bit parallel data-signals that it transmits DSP convert the USB mouth of the serial data transmission of USB to PC to, the usb data that PC can be transmitted simultaneously converts 8 bit parallel data to, be transferred to DSP, thereby realized that DSP communicates by letter with the USB interface of PC, usb protocol is realized by software.This module can be finished the usb communication experiment, also can do the high-speed data transmission experiment.

D/A modular converter M8 comprises one 3/8 code translator (model is 74LS138) and a D/A (model is DAC7625) that is fixed on this module base plate, pins such as the Y0～Y7 of code translator, A, B, C are drawn out to the conductive jack group M19 of this module, 2 of D/A, 3,8～23,26, No. 27 pins are drawn out to the conductive jack group M19 of this module.This module can be done the D/A transition experiment.

Pilot lamp and trigger switch module M9 comprise a latch (model is 74LS273) that is fixed on this module base plate, eight pilot lamp and eight triggering buttons.Trigger an end ground connection of button, the other end is connected on the conductive jack group M19 of this module by the resistance of one 220 Ω; One end of eight pilot lamp passes through resistance eutral grounding, the other end is connected respectively to the 2nd, 5,6,9,12,15,16, No. 19 pin of 74LS273 chip, and the 1st, 3,4,7,8,11,13,14,17, No. 18 pin of 74LS273 chip linked respectively on the conductive jack group M19 of this module.In the experiment of carrying out man-machine interaction, use, be used for the state of manually giving trigger pip and passing through pilot lamp Real Time Observation dsp operation program.

A/D modular converter M10 comprises a simulating signal being fixed on this module base plate conversion chip (model is TLV2544C) to digital signal, 1,2,3,13, No. 16 pin of chip TLV2544C is connected respectively to the conductive jack group M19 of this module, and 4,5, No. 11 pins are connected to the conductive jack group M19 of this module respectively by 0 Ω resistance.This module can be finished the A/D experiment.

High precision audio collection processing module M11 comprises an audio codec chip (model is TLV320AIC23) that is fixed on this module base plate, they are 3～7 years old, 23～No. 25 pins are linked the conductive jack group M19 of this module respectively, 9, No. 10 pins are earphone output, 17, No. 18 pins are the microphone input, 19, No. 20 is the circuit input pin, it has independently control interface and digital interface, control interface is used to receive the command word of controller, data-interface and DSP finish the exchange of speech data, this module the is integrated digital interpolation wave filter of high sampling rate, the function that has comprised A/D and D/A converter, its digital transmission word length can be 16,20,24,32Bit, it supports the sampling rate of 8～96KHz, precision is very high, can finish the collection and the playback of voice signal, cooperates memory module can record the voice signal that is thirty minutes long, can also finish the speech pattern recognition experiment, the voice coding experiment.

Simulating signal generation module M12 comprises an operational amplifier (model is LF356N) that is fixed on this module base plate, two waveform generators (model is ICL8038), the the 2nd, No. 3 pin of waveform generator guided to the conductive jack group M19 of this module by 2K resistance, and No. 9 pins are guided to the conductive jack group M19 of this module by 10K resistance.This module can produce two road high-precision square waves, sawtooth wave and sine wave, can cooperate dsp chip to finish various signal Processing experiments by the signal that produces.

Audio collection playback module M13 comprises an AD sampling A that is fixed on this module base plate, four high gain operational amplifiers, a rejection gate integrated circuit and a low-voltage sound signal amplifier.

Keysheet module M14 includes 18 buttons, is respectively several buttons of 0～9, and the alphabet key of A～F has been represented 16 codes of 16 systems, also has " ESC " key and " # " key.This module is used as the selection of option and withdraws from interactive the time, also can cooperate other experiments as parameter input, control etc.The circuit of Keysheet module is one 3 * 6 a matrix structure, and each intersection point is determined a button, and 9 lines are connected respectively to the conductive jack group M19 of this module.

Logical circuit control chip U5 on the TMS320VC5416 core board M2 is CPLD, and it mainly acts on is to do logic control and sequential adjustment.Do logic by CPLD when calling a plurality of module at the same time and select, in the usb data transmission,, must mate by CPLD because the read-write time delay of USB controller and DSP is inconsistent.In addition can be by emulator to the CPLD reprogramming, so it can be used as the EDA contrived experiment.

Whole Design of device has contained the current DSP mainstream chip 2000 of TI company and the main contents and the knowledge point of 5000 series.Open hardware interface offers the user with the jack form, makes it design hardware circuit voluntarily, forms various application systems.

Each functional module of present embodiment is relatively independent, and each module all has and is fixed in conductive jack group M19 on each module, and two core boards can be connected with conductive jack group M19 by the contact pin of drawing, and connects circuit, and corresponding module is called by two dsp chips.

With TMS320LF2407A and TMS320VC5416 is that two core boards of master chip can separate with other modules, works alone as development board.

Claims (4)

1. multi-functional experimental development instructional device based on dsp chip, it is characterized in that: this device contains casing (M18), be fixed on the base plate (M17) in the casing (M18), be plugged on base plate (M17) and go up and do not have with it the TMS320LF2407A core board (M1) and the TMS320VC5416 core board (M2) of direct circuit connection, be fixed on base plate (M17) go up mutually between the motor control module (M3) of no direct circuit connection, LCD MODULE (M4), be used for the serial communication modular (M5) that is connected with PC, memory module (M6), be used for the usb communication module (M7) that is connected with PC, D/A modular converter (M8), pilot lamp and trigger switch module (M9), A/D modular converter (M10), sampled audio signal processing module (M11), simulating signal generation module (M12), the audio collection playback module (M13) of band loudspeaker, Keysheet module (M14), power switch (M15), conductive jack group (M19); Wherein be connected by pin groups between TMS320LF2407A core board (M1) and the base plate (M17), be connected by pin groups between TMS320VC5416 core board (M2) and the base plate (M17), the part pin of TMS320LF2407A core board (M1) and TMS320VC5416 core board (M2) top chip directly connects contact pin and draws motor control module (M3), LCD MODULE (M4), be used for the serial communication modular (M5) that is connected with PC, memory module (M6), be used for the usb communication module (M7) that is connected with PC, D/A modular converter (M8), pilot lamp and trigger switch module (M9), A/D modular converter (M10), sampled audio signal processing module (M11), simulating signal generation module (M12), the audio collection playback module (M13) of band loudspeaker, Keysheet module (M14) all contains the conduct conductive jack group (M19) of the external circuit interface of module separately.

2. the multi-functional experimental development instructional device based on dsp chip according to claim 1 is characterized in that: a slice model that TMS320LF2407A core board (M1) comprises printed circuit board (PCB) and is fixed in the printed circuit board (PCB) relevant position is the dsp chip (U1) of TMS320LF2407A, the RAM chip (U2) of two expansions, two 16 buses isolators (U4), 8 bi-directional transceivers of low-voltage (U6), a Transistor-Transistor Logic level is to serial ports level shifting circuit (U7), a power supply chip (U3) of giving dsp chip periphery and kernel power supply usefulness, the chip that resets (U9), a CAN transmitter (U10); A slice model that TMS320VC5416 core board (M2) comprises printed circuit board (PCB) and is fixed in relevant position on the printed circuit board (PCB) is dsp chip (U1), the logical circuit control chip (U5) of TMS320VC5416, a power supply chip (U3) of powering usefulness for the peripheral and kernel of dsp chip.

3. the multi-functional experimental development instructional device based on dsp chip according to claim 2, it is characterized in that: on TMS320LF2407A core board (M1), the part pin of the RAM chip (U2) of expansion, 16 buses isolators (U4), 8 bi-directional transceivers of low-voltage (U6), serial ports level shifting circuit (U7), CAN transmitter (U10) is communicated with the corresponding pin of dsp chip (U1), and other part pins of 16 buses isolators (U4) directly patch pin; On TMS320VC5416 core board (M2), logical circuit control chip (U5) is CPLD, the JTAG plug of the JTAG plug of dsp chip (U1) and logical circuit control chip (U5) is drawn with contact pin, and A0-A5, the A12-A15 of dsp chip (U1) and 20-25 pin are communicated with 102～92,20～No. 25 pins of logical circuit control chip (U5) respectively.

4. the multi-functional experimental development instructional device based on dsp chip according to claim 1, it is characterized in that: motor control module (M3) comprises a stepper motor that is fixed on this module base plate, a direct current generator, a buffer and two comparers; LCD MODULE (M4) comprises the graphic lcd of a band GB Chinese word library that is fixed on this module base plate, a liquid crystal backlight lighteness regulator and a lcd contrast regulator; Serial communication modular (M5) comprises the deserializer of the serial data of be fixed on this module base plate one coupling UART and the transmitting-receiving of DSP parallel data and a slice Transistor-Transistor Logic level conversion chip to the RS232 level; Memory module (M6) comprises the high speed static RAM chip (U8) that a slice that is fixed on this module base plate is used for system's running memory expansion, a slice is used for the Flash chip (U11) of programming DSP program, and a slice is used to deposit the NandFlash storer (U12) of Large Volume Data; Usb communication module (M7) comprises a slice USB interface chip and data transmission pilot lamp that is fixed on this module base plate; D/A modular converter (M8) comprises one 3/8 code translator and D/A that is fixed on this module base plate; Pilot lamp and trigger switch module (M9) comprise a d type flip flop that is fixed on this module base plate, eight diode pilot lamp and eight triggering buttons; A/D modular converter (M10) comprises a simulating signal being fixed on this module base plate conversion chip to digital signal; High precision sampled audio signal processing module (M11) comprises an audio codec that is fixed on this module base plate; Simulating signal generation module (M12) comprises an operational amplifier that is fixed on this module base plate, two waveform generators; Audio collection playback module (M13) comprises an AD sampling A that is fixed on this module base plate, four high gain operational amplifiers, a rejection gate integrated circuit and a low-voltage sound signal amplifier.

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