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ADSP-2181 EZ-KIT Lite Evaluation System Manual

3-1

3 EZ-KIT HARDWARE

REFERENCE

This chapter discusses the hardware design of the ADSP-2181 EZ-KIT
Lite board. The following topics are covered:

•

“System Architecture” on page 3-2

Illustrates the configuration of the ADSP-2181 EZ-KIT Lite

board.

•

“Board Layout” on page 3-3

Shows the location and describes the function of the configuration

jumpers, switches, and user LEDs.

•

“Connectors” on page 3-5

Shows the location and describes the function of the expansion

connectors.

•

“Designing EZ-ICE Compatible Systems” on page 3-14

Outlines the ICE emulator theory of operation to aid your

EZ-ICE compatible system designs.

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Содержание ADSP-2181

Страница 1: ...a ADSP 2181 EZ KIT Lite Evaluation System Manual Revision 2 1 October 2003 Part Number 82 000543 01 Analog Devices Inc One Technology Way Norwood Mass 02062 9106 ...

Страница 2: ...o change this product without prior notice Information furnished by Analog Devices is believed to be accurate and reliable However no responsibility is assumed by Analog Devices for its use nor for any infringement of patents or other rights of third parties which may result from its use No license is granted by impli cation or otherwise under the patent rights of Analog Devices Inc Trademark and ...

Страница 3: ...w in This Manual xi Technical or Customer Support xi Supported Processors xii Product Information xiii MyAnalog com xiii DSP Product Information xiii Related Documents xiv Online Documentation xv Printed Manuals xvi VisualDSP Documentation Set xvi Hardware Manuals xvi Data Sheets xvi Contacting DSP Publications xvii Notation Conventions xvii ...

Страница 4: ...DSP and EZ KIT Lite Software 1 5 Installing VisualDSP License 1 6 USING EZ KIT LITE SOFTWARE EZ KIT Lite License Restrictions 2 2 Memory Map 2 2 Standard Operations 2 3 Default Settings 2 3 Input and Output Devices 2 3 Flags 2 4 Interrupts 2 4 Serial Ports 2 5 POST Routines 2 5 Memory Checks 2 6 UART Checks 2 6 AD1847 Codec Check and Initialization 2 7 Monitor Program Operations 2 7 Halt loop 2 7 ...

Страница 5: ... Interface 2 10 Developing Programs 2 10 Starting Visual DSP 2 11 Debugging With EZ KIT Lite 2 13 Loading Programs 2 13 Registers and Memory 2 14 Setting Breakpoints and Stepping 2 14 Resetting EZ KIT Lite Board 2 14 Example Programs 2 15 ADPCM 2 15 DTMF 2 15 ECHO 2 15 FIRDEMO 2 16 LPC2K4 2 16 LPC7K8 2 16 PRIMES 2 17 EZ KIT HARDWARE REFERENCE System Architecture 3 2 Board Layout 3 3 Socketed Memor...

Страница 6: ...s 3 5 Expansion Port Connectors 3 7 Power Connector 3 9 European Power Supply Connections 3 9 AD1847 Codec Connectors 3 9 EPROM Jumper Settings 3 10 EZ ICE Connector 3 12 Hardware Operation 3 13 Hardware Debugging 3 13 Designing EZ ICE Compatible Systems 3 14 RESTRICTIONS BILL OF MATERIALS INDEX ...

Страница 7: ...sualDSP software gives you the ability to perform advanced application code development and debug such as Create compile assemble and link application programs written in C C and ADSP 2181 assembly Load run step halt and set breakpoints in application program Read and write data and program memory Read and write core and peripheral registers Plot memory You can access the ADSP 2181 processor from ...

Страница 8: ... stereo codec Analog Inputs One stereo pair of 2V RMS AC coupled line level inputs One stereo pair of 20 mV RMS AC coupled microphone inputs Analog Outputs One stereo pair of 1V RMS AC coupled line level outputs Power Source 8 to 10V DC at 300 mA Environment 0 to 70o centigrade 10 to 90 percent relative humidity non condensing RS 232 Interface Socketed EPROM User push buttons Expansion connectors ...

Страница 9: ...a PC This monitor program lets you download execute and debug ADSP 2181 programs You can also connect an EZ ICE in circuit emulator to the EZ KIT Lite Through the EZ ICE you can load programs start and stop pro gram execution observe and alter registers and memory and perform other debugging operations To learn more about Analog Devices emula tors and DSP development tools go to http www analog co...

Страница 10: ...evices 16 bit fixed point processors can use this manual in conjunction with the ADSP 218x DSP Hardware Reference and the ADSP 218x DSP Instruction Set Reference which describe the processor architecture and instruction set Program mers who are unfamiliar with VisualDSP should refer to the VisualDSP online Help and the VisualDSP user s or getting started guides For the locations of these documents...

Страница 11: ... New in This Manual This is the second revision of the ADSP 2181 EZ KIT Lite Evaluation Sys tem Manual The manual provides the updated listing of related documents updated installation procedure and Bill of Materials and additional information on the processor s internal memory Technical or Customer Support You can reach DSP Tools Support in the following ways Visit the DSP Development Tools websi...

Страница 12: ...181 EZ KIT Lite Evaluation System Manual Analog Devices Inc One Technology Way P O Box 9106 Norwood MA 02062 9106 USA Supported Processors The ADSP 2181 EZ KIT Lite evaluation system supports ADSP 2181 Analog Devices microprocessors ...

Страница 13: ... on products you are interested in You can also choose to receive weekly email notification containing updates to the webpages that meet your interests MyAnalog com provides access to books application notes data sheets code examples and more Registration Visit www myanalog com to sign up Click Register to use MyAnalog com Registration takes about five minutes and serves as means for you to select...

Страница 14: ...icrocomputer Data Sheet General functional description pinout and timing ADSP 218x DSP Hardware Reference Description of internal processor architecture and all register functions ADSP 218x DSP Instruction Set Reference Description of all allowed processor assembly instructions Table 2 Related VisualDSP Publications Title Description VisualDSP 3 5 User s Guide for 16 Bit Proces sors Detailed descr...

Страница 15: ...T Lite evaluation system To view VisualDSP Help click on the Help menu item or go to the Windows task bar and select Start Programs VisualDSP Visu alDSP Documentation To view ADSP 2181 EZ KIT Lite Help which now is a part of the Visu alDSP Help system go the Contents tab of the Help window and select Manuals ADSP BF533 EZ KIT Lite For more documentation please go to http www analog com technology ...

Страница 16: ... on our distributors log onto www analog com salesdir continent asp Hardware Manuals Printed copies of hardware reference and instruction set reference manuals can be ordered through the Literature Center or downloaded from the Analog Devices website The phone number is 1 800 ANALOGD 1 800 262 5643 The manuals can be ordered by a title or by product number located on the back cover of each manual ...

Страница 17: ...this document Example Description Close command File menu or OK Text in bold style indicates the location of an item within the VisualDSP environment s and boards menu system and user interface items this that Alternative required items in syntax descriptions appear within curly brackets separated by vertical bars read the example as this or that this that Optional items in syntax descriptions app...

Страница 18: ...st or identifying a related topic In the online version of this book the word Note appears instead of this symbol Caution A caution providing information about critical design or programming issues that influence operation of a product In the online version of this book the word Caution appears instead of this symbol Example Description ...

Страница 19: ...sented in Installation Tasks on page 1 3 The chapter includes the following sections Contents of EZ KIT Lite Package on page 1 2 Provides a list of the components shipped with this EZ KIT Lite evaluation system System Requirements on page 1 3 Describes the minimum requirements for the PC to work with the EZ KIT Lite evaluation system Installation Tasks on page 1 3 Describes the step by step proced...

Страница 20: ...ograms ADSP 2181 EZ KIT Lite Evaluation System Manual this document If any item is missing contact the vendor where you purchased your EZ KIT Lite or contact Analog Devices Inc The EZ KIT Lite evaluation system contains ESD electrostatic discharge sensitive devices Electro static charges readily accumulate on the human body and equipment and can discharge without detection Permanent damage may occ...

Страница 21: ...the presented order to ensure correct operation of your software and hardware 1 EZ KIT Lite hardware setup VisualDSP and EZ KIT Lite soft ware installation 2 VisualDSP and EZ KIT Lite software installation 3 VisualDSP license installation Windows 98 ME 2000 XP Windows NTTM Windows 98 ME 2000 XP Windows NT 4 0 Service Pack 3 or later Pentium processor 166MHz or faster Pentium processor 166MHz or fa...

Страница 22: ...tion board 3 Plug the provided cord into a 120 Volt AC receptacle and plug the connector at the other end of the cable into J4 on the evaluation board Visually verify that all of the LEDs light up briefly The power green LED remains on and FL1 blinks If the LED does not light up check the power connections The EZ KIT Lite evaluation system contains ESD electrostatic discharge sensitive devices Ele...

Страница 23: ...Lite hardware design refer to Board Layout on page 3 3 Installing VisualDSP and EZ KIT Lite Software This EZ KIT Lite comes with the latest version of VisualDSP for 16 bit processors VisualDSP installation includes EZ KIT Lite installations To install VisualDSP and EZ KIT Lite software 1 Insert the VisualDSP installation CD into the CD ROM drive 2 If Autoplay is enabled on your PC you see the Inst...

Страница 24: ...ose Programs Analog Devices Visu alDSP 3 5 for 16 bit Processors VisualDSP Environment 3 The information screen asks if you would like to install a license Click Yes The About VisualDSP screen appears 4 Select the Licenses tab and click New 5 In the Install a New License dialog that opens select Single User Please note that the VisualDSP software that comes with your EZ KIT Lite is a demo version ...

Страница 25: ...eakpoints stepping through code and plotting a range of memory The information in this chapter is organized as follows EZ KIT Lite License Restrictions on page 2 2 Describes the restrictions of the VisualDSP license shipped with the EZ KIT Lite Memory Map on page 2 2 Defines the ADSP 2181 EZ KIT Lite board s memory map Standard Operations on page 2 3 Covers the standard operation of the EZ KIT Lit...

Страница 26: ...nnected and powered up in order to use VisualDSP with a kit license Memory Map The ADSP 2181 EZ KIT Lite board contains 80K bytes configured as 16K x 24 program memory and 16K x 16 of internal SRAM that can be used for either program or data storage Table 2 1 shows the memory map of the ADSP 2181 EZ KIT Lite The configuration of on chip SRAM is detailed in the ADSP 2181 Microcomputer Data Sheet Ta...

Страница 27: ...KIT Lite have the default settings shown in Table 2 2 You can change the settings in the dialog box that appears the first time you start VisualDSP Input and Output Devices The board s IO component are detailed in the following sections Flags on page 2 4 Interrupts on page 2 4 Serial Ports on page 2 5 DM 0x3E00 0x3FFF Available for user data DM 0x3B00 0x3DFF Reserved for monitor data Table 2 2 Use...

Страница 28: ... The ICNTL register also controls the interrupt sensitivity between level and edge To prevent an interrupt from being masked write to the IMASK register The monitor program running on the ADSP 2181 DSP uses one interrupt Timer for normal operation When downloading your own code through the monitor program the timer interrupt vector is protected and cannot be overwritten If these vectors are overwr...

Страница 29: ...l Asynchronous Receiver Transmitter UART Communications between the monitor and the host are through SPORT1 For more information on the Serial Ports refer to the ADSP 218x DSP Hardware Reference POST Routines Power On Self Test POST routines are a series of standard tests and ini tializations that the ADSP 2181 EZ KIT Lite performs on a power on reset To perform a power on reset disconnect power t...

Страница 30: ...stream back to the host This test determines whether the EZ KIT Lite board is set to the correct baud rate and verifies the external connections between the board and the host On power up the EZ KIT Lite board defaults to a baud rate of 9600 baud with 8 data bits 1 stop bit and no parity To change this rate wait for the POST routine to complete and then use the Settings Baud Rate command in the de...

Страница 31: ... The VisualDSP debugger is the interface for the monitor program Using the EZ KIT Lite as a target with the debugger lets you operate the board remotely There are three main components of the monitor program Halt loop UART ISR Command Processing Halt loop The monitor program idles in the halt loop when the program is not run ning user code While there you can READ and WRITE memory and registers do...

Страница 32: ...lowing restrictions should be observed to ensure correct board operation The host loses contact with the monitor while the user program is running if the user program disables the Timer interrupt or changes the Timer interrupt vector The host loses contact with the monitor while the program is run ning and it enters an Interrupt Service Routine when nesting is turned on The host cannot halt with t...

Страница 33: ...rate some basic codec operations It is recommended that you model your code using these examples AD1847 Codec Transmissions After initialization the AD1847 codec generates the clock used to transfer data across SPORT0 The ADSP 2181 DSP initiates all transmissions with the AD1847 device by sending a synchronization pulse Even though the AD1847 transmits the data clock it may not be ready for normal...

Страница 34: ... Loading Programs on page 2 13 Example Programs on page 2 15 For detailed information about VisualDSP features and operation see the VisualDSP 3 5 User s Guide for 16 Bit Processors and online Help Developing Programs A typical program development cycle using the VisualDSP environment includes the following steps 1 Creating a new project file 2 Setting target processor project options 3 Adding and...

Страница 35: ...two debugger interfaces to run more than one EZ KIT Lite session Starting Visual DSP After the VisualDSP software and license have been installed click the Windows Start menu 1 Select the Start button on the Windows taskbar then choose Pro grams Analog Devices VisualDSP 3 5 for 16 bit Processors VisualDSP Environment If you are running VisualDSP for the first time go to step 4 If you already have ...

Страница 36: ...Click OK and press the reset button on the board All the LEDs light up after a brief delay less than 2 seconds FL1 will then blink and the PWR LED will stay lit During the delay the POST tests run to verify the correct operation of the AD1847 codec and the EPROM 9 Click OK The initialization completes and the disassembly window opens The code in the disassembly window is the EZ KIT Lite monitor pr...

Страница 37: ...ing programs into a hardware target the load process takes a slightly longer period of time then loading in the simulator Wait for the Load Complete message in the Output window before you attempt any debug activities To load a program use the following procedure 1 From the File menu select Load The Open a Processor Program dialog box appears 2 Navigate to the folder where your DSP executable file...

Страница 38: ...f a do loop are allowed but this causes improper debugger operation Resetting EZ KIT Lite Board The EZ KIT Lite board can be reset with the push button switch on the board or with the Debug Reset command in the debugger After per forming a reset reload any programs you were running The Debug Restart command also resets the processor The processor however retains all debug information and memory co...

Страница 39: ...e same time or you can open two debugger interfaces to run more than one EZ KIT Lite session ADPCM This program demonstrates Adaptive Differential Pulse Code Modulation ADPCM capabilities ADPCM consists of a number of real time speech compression algorithms DTMF This demonstration generates Dual Tone Multi Frequency DTMF tones as used in the telephone network for push button signaling A DTMF tone ...

Страница 40: ...ould hear your voice through the speaker The filters have equivalent bandwidth and are evenly spaced on a logarith mic frequency axis All FIR filters are 256 taps and have been desired for 0 1 ripple LPC2K4 Push the Interrupt button on EZ KIT Lite to toggle between talk through and 2 4k LPC encoding The red LED lids when LPC encoding is in effect LPC7K8 Push the Interrupt button on EZ KIT Lite to ...

Страница 41: ...ADSP 2181 EZ KIT Lite Evaluation System Manual 2 17 Using EZ KIT LITE Software PRIMES This demonstration is a C program that generates the first 20 prime numbers ...

Страница 42: ...Using EZ KIT Lite VisualDSP Interface 2 18 ADSP 2181 EZ KIT Lite Evaluation System Manual ...

Страница 43: ...Illustrates the configuration of the ADSP 2181 EZ KIT Lite board Board Layout on page 3 3 Shows the location and describes the function of the configuration jumpers switches and user LEDs Connectors on page 3 5 Shows the location and describes the function of the expansion connectors Designing EZ ICE Compatible Systems on page 3 14 Outlines the ICE emulator theory of operation to aid your EZ ICE c...

Страница 44: ...re 3 2 ADSP 2181 EZ KIT Lite Evaluation System Manual System Architecture This section describes the processor configuration on the EZ KIT Lite board see Figure 3 1 Figure 3 1 ADSP 2181 EZ KIT Lite System Block Diagram ...

Страница 45: ...ware Reference Board Layout Figure 3 2 shows the layout of the EZ KIT Lite board This figure high lights the locations of the major components and connectors Each of these major components is described in the following sections Figure 3 2 EZ KIT Lite Board Layout ...

Страница 46: ...e ADSP 2181 processor Software can control the state of this indicator by writing to an internal register The D2 LED is a green light emitting diode which is on whenever the board has power Switches The S1 switch is the reset push button switch Pushing this button causes the ADSP 2181 processor and the AD1847 codec to enter the hardware reset state and remain there until it is released The switch ...

Страница 47: ...ormation see Power Connector on page 3 9 The JP1 jumper is a site for an eight pin header It can be used to configure the board for EPROM sizes other than the 1 Mbit 128K byte EPROM 27C010 shipped with the board Most users will not need this feature For more information see EPROM Jumper Settings on page 3 10 The JP2 jumper shown in Figure 3 3 is a six pin header It is used to configure input jack ...

Страница 48: ...C040 512K byte or 27C080 1 Mbyte EPROM This socket is connected to the ADSP 2181 processor s byte wide memory interface The R28 resistor is a site for a zero ohm resistor It this resistor is installed the ADSP 2181 processor can reset the board under soft ware control The software would assert reset by configuring the PF0 flag as an output and then setting it low The R29 resistor is another site f...

Страница 49: ...VENT pins are also available on this connector External port loading can effect external bus speed and performance Table 3 1 describes the signals available on the P2 and P3 pins Figure 3 4 Expansion Connector Table 3 1 Expansion Connectors P2 P3 Pin Number Signal Name Pin Number Signal Name Pin Number Signal Name Pin Number Signal Name 1 A0 2 A1 1 GND 2 IAD0 3 A2 4 A3 3 IAD1 4 IAD2 5 A4 6 A5 5 IA...

Страница 50: ... 30 PF5 31 D16 32 D17 31 PF6 32 PF7 33 D18 34 D19 33 FL0 34 FL1 35 D20 36 D21 35 FL2 36 CLK OUT 37 D22 38 D23 37 RESET 38 IRQL0 39 WR 40 RD 39 IRQL1 40 IRQ2 41 IOMS 42 BMS 41 PWD 42 PWDA CK 43 DMS 44 CMS 43 COD ECDIS 44 TXD0 45 PMS 46 BR 45 TFS0 46 RFS0 47 BGH 48 BG 47 RXD0 48 SCK0 49 VCC 50 GND 49 VCC 50 GND Table 3 1 Expansion Connectors Cont d P2 P3 Pin Number Signal Name Pin Number Signal Name...

Страница 51: ...uropean power supply specifications AD1847 Codec Connectors When the AD1847 codec is enabled on the EZ KIT Lite board you can access the audio input and output jacks on the board Each of the audio connectors are stereo mini jacks and accept standard commercially avail able stereo mini plugs Table 3 2 Power Connection Terminal Connection Center pin 8 10v dc 300mA Outer ring positive Table 3 3 Europ...

Страница 52: ...e socket at U2 it is necessary to change the connections at JP1 as shown in Figure 3 5 Connections are made vertically between pads The pair of pads below each number constitutes the jumper position associated with that number Connections can be made in several ways If an eight pin header is installed and the etch connections on the back are cut EPROM size changes can be accommodated easily by ins...

Страница 53: ...he board is manufactured Connections for a 27C020 27C040 or 27C080 EPROM the connections should look like figure 5 7 This involves cutting the etch on the back of the board at jumper position 3 and adding a connection at jumper position 4 Figure 3 6 JP1 Jumper setting for 27C256 EPROM Figure 3 7 JP1 Jumper setting for 21C512 27C010 EPROM Figure 3 8 JP1 Jumper setting for 27C020 C040 27C080 EPROM ...

Страница 54: ...n other ADSP 2100 EZ ICEs The ADSP 2181 device need not be removed from the target system when using the EZ ICE nor are any adapters needed Due to the small foot print of the EZ ICE connector emulation can be supported in final board designs The EZ ICE performs provides In target operation Setting up to 30 breakpoints Single stepping or full speed operation Examining and altering registers and mem...

Страница 55: ...unded the processor boots from the byte wide memory interface which is connected to the EPROM socket If the EPROM supplied with the board is installed in the socket the opera tion of the board is proceed as documented in the software section of this manual Hardware Debugging If the green LED fails to light check your power connections Verify that your power supply has the proper size connector and...

Страница 56: ...platform to develop new applications targeting ADSP 2181 processors The EZ KIT Lite board is an example of a minimum implementation of an ADSP 2181 processor The socketed EPROM is connected to the pro cessor via the Byte DMA Port This interface uses only eight of the twenty four data lines to carry data D8 through D15 Eight of the spare data lines D16 through D23 are used to provide additional add...

Страница 57: ...ns are used to communicate with the host PC via the RS 232 interface J3 The Flag In and Flag Out pins carry the receive and transmit data Software running on the DSP emulates a UART to provide the proper protocol for asynchronous serial communications up to a data rate of 115K bits per second ...

Страница 58: ...Designing EZ ICE Compatible Systems 3 16 ADSP 2181 EZ KIT Lite Evaluation System Manual ...

Страница 59: ...the user program is running if the user program disables the Timer interrupt or changes the Timer interrupt vector 3 The host loses contact with the monitor while the program is run ning and in an ISR when nesting is turned on 4 Do not use the Reset button while the debugger is open unless the debugger requests you to do so This causes the debugger to stop communicating 5 Do not run more than one ...

Страница 60: ...A 2 ADSP 2181 EZ KIT Lite Evaluation System Manual ...

Страница 61: ... S1 S2 5 20 Capacitor 1206 0 1uF MCH315C104M C1 C3 C6 C11 C24 C28 C33 C38 C39 C42 C45 6 Capacitor 1206 0 33uF MCH312C334M C2 C12 C17 C19 C22 C29 C34 7 6 Capacitor 1206 18pF MCH315A180J C4 C5 C31 C32 C36 C37 8 2 Capacitor 1206 220pF MCH315SL221K C14 C21 9 2 Capacitor 1206 560pF MCH315SL561K C13 C23 10 7 Capacitor Aluminum 1 0uF SMT CB1 50BM C15 C16 C18 C20 C35 C40 C41 11 3 Capacitor Aluminum 10uF S...

Страница 62: ...SW 103 07 T Q JP2 21 1 LED Green 5mm LN31GPHL D2 22 1 LED Red 5mm LN21RPHL D1 23 1 IC CODEC AD1847JP U7 24 1 IC DSP ADSP2181KS U3 25 1 IC Hex inverter MC74HC14AD U1 26 1 IC Dual OPAMP SSM2135S U4 27 1 IC Regulator 5 Volt TO 220 LM78M05CT U6 28 1 IC RS 232 Interface ADM232AARN U5 29 1 PCB ESDSP 81 65 000286 01 30 3 Resistor 1 8W 5 1206 100K MCR18 EZHU J 104 R1 R3 R18 31 9 Resistor 1 8W 5 1206 10K M...

Страница 63: ... EZHU J 202 R2 R4 35 2 Resistor 1 8W 5 1206 47K MCR18 EZHU J 473 R11 R13 36 6 Resistor 1 8W 5 1206 5 1K MCR18 EZHU J 512 R10 R12 R15 R16 R7 R8 37 1 Resistor 1 8W 5 1206 1 6 MCR18 EZHU K 1R6 R19 38 4 Rubber bumper gray SJ 5018924157 R 39 2 Shunt On header at JP2 40 1 Socket 32 Pin Dip 2 644018 5 U2 Reference Quantity Description Manufacturer Reference Design ...

Страница 64: ...B 4 ADSP 2181 EZ KIT Lite Evaluation System Manual ...

Страница 65: ...y map 2 2 resetting board 2 5 setting hardware 1 4 system architecture 3 2 VisualDSP interface 2 10 ADSP 2181 processor internal memory restrictions 2 2 analog audio interface viii see also AD1847 codec input viii microphone input 2 16 output viii assembly 3 12 asynchronous pin FL1 2 4 audio configuring board 1 5 input ix 3 9 output ix 3 9 B baud rate 2 6 2 7 BDMA 3 4 bill of materials B 1 BMODE p...

Страница 66: ... D DAC 2 15 data clock 2 9 transmissions 3 7 3 15 DEBUG command 2 5 debugger 2 6 2 11 2 14 A 1 debugging 2 9 2 13 3 12 default settings 2 3 developing programs 2 10 development cycle 2 10 DIP package 3 6 disassembly 3 12 DMA port 3 14 DTMF tones 2 15 E echo canceller 2 15 electrostatic discharge 1 2 1 4 emulation 3 12 port vii environment viii EPROM viii ix 2 6 3 4 3 6 jumper JP1 3 10 sizes 3 10 s...

Страница 67: ... licence 1 6 VisualDSP and EZ KIT Lite software 1 5 instruction rate viii internal RAM 2 6 interrupt disabled 2 4 nesting 2 4 request 2 9 switch 3 4 vector 2 4 2 8 A 1 IO devices 2 3 IRQE external interrupt 2 4 3 4 J J2 stereo jack 3 5 J3 RS 232 connector 3 5 3 15 J4 power jack connector 3 5 JP1 jumper 3 5 3 6 3 10 JP2 jumper 3 5 jumpers viii L LEDs 1 4 D1 red emitting diode 3 4 D2 green emitting ...

Страница 68: ...LEDs see LEDs push buttons viii 3 4 S1 reset switch 2 14 3 4 S2 external ISR 2 4 S2 external ISR switch 3 4 PWM_EVENT pins 3 7 R R28 resistor 3 6 R29 resistor 3 6 read write memory 2 7 register checking 2 14 3 12 reset 2 5 3 4 3 6 3 13 button S1 3 14 A 1 types 2 5 RESET command 2 5 resetting EZ KIT Lite 2 14 Restart command 2 14 RS 232 cable 1 2 1 4 interface viii 2 5 RX interrupt 2 9 S serial num...

Страница 69: ...ization pulse 2 9 synchronous serial port 3 14 system architecture 3 2 EZ ICE compatible 3 14 requirements PC 1 3 T testing memory 2 6 UART 2 6 Timer ISR 2 4 2 8 A 1 transmitted loop back routine 2 6 TX interrupt 2 9 U U2 socket 3 6 UART 2 5 baud rate 2 7 ISR 2 8 protocol 3 15 test protocol 2 6 user LEDs see LEDs V VisualDSP 1 2 documentation xvi installation 1 5 interface 2 10 license 1 6 online ...

Страница 70: ...INDEX I 6 ADSP 2181 EZ KIT Lite Evaluation System Manual ...

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