Analog Devices MICROCONVERTER ADUC814-28TSSOP Скачать руководство пользователя страница 10

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ADuC814 Evaluation Board ReferenceGuide

Version 1.0 (01/05/02)

Page 10 of 10

S1 S2

Push button Switch

SMD sealed 6mm Push Button Switch

Farnell

177-807

Toggle Switch

Single Pole 2 Position Slide Switch

Farnell

733-647

T1 T2 T3 (Not populated)

Testpoint

Raised Loop Testpoint

Farnell

240-345

32.768 kHz XTAL

Seiko MC-306

Farnell

300-3127

PCB

Bare Board

Eval-ADuC814QS Rev. A Bare Board

Each Corner

PCB Stand-off

Stick on mounting feet

Farnell

148-922

Содержание MICROCONVERTER ADUC814-28TSSOP

Страница 1: ...a ADUC814 EVALUATION BOARD REFERENCE GUIDE MICROCONVERTER ADUC814 QUICKSTART DEVELOPMENT SYSTEM ...

Страница 2: ... 5 1 02 Page 2 of 10 CONTENTS Evaluation Board Reference Guide 1 Evaluation Board Overview 2 Evaluation Board Features 3 Using the LDR demo circuit 4 External Junctions Connectors 5 Parts List Figure 1 Reference Orientation of the ADuC814 Evaluation Board ...

Страница 3: ... output channel buffered to external header All device Ports are brought out to external header pins Surface Mount and Through Hole General Purpose Prototype Area NOTES 1 All references in this document to physical orientation placement of connectors and components are made with respect to a component side view of the board with the Battery Connector J1 appearing in the top right hand corner of th...

Страница 4: ...ce Single pin non intrusive emulation is possible using the ADuC814 by connecting an emulator to the DLOAD pin J5 allows direct connection to the emulator board External Data Memory Interface The Evaluation board incorporates 8K x 8 SPI FRAM U3 The 3 wire interface to this memory is SPI Mode 0 and Mode 3 compatible The FRAM is active by default but may be disabled by removing the zero ohm resistor...

Страница 5: ... side of the board beside the Reset Input It is driven directly to the INT0 INT0 input on the ADuC814 U2 Pin 5 User LED P3 3 on the ADuC814 drives the Display LED D4 The CLR instruction turns the LED on and the SETB instruction turns the LED off Switch S3 DLOAD Function Allows the user to select between Serial Download Debug mode or Normal mode Use Move S3 to DLOAD DEBUG position to enter serial d...

Страница 6: ...ematic an example LDR circuit is connected shown in Figure 2 below Figure 2 Circuit diagram of the LDR Circuit Using the sample code in C ADuC code adc adcldr asm the variation in the resistance of the ldr can be seen by the reducing brightness of the output led as the amount of light is decreased ADC DAC VDD VDD Application Code LK8 LK5 ...

Страница 7: ...l as the external VREF and CREF inputs The pinout and orientation of this connector is shown below Pin Function 1 ADC0 2 ADC1 3 ADC2 4 ADC3 5 ADC4 DAC0 6 ADC5 DAC1 7 CREF Buffered 8 VREF 9 AVDD 10 AGND Table 1 Pin functions for Analog I O connector J7 J5 Port 3 Port 1 0 and Port 1 1 This 10 way connector allows easy access to the general purpose port pins P3 0 P3 7 P1 0 and P1 1 to and from the AD...

Страница 8: ...age 8 of 10 J5 SPI I2C Connector J5 is situated to the right side of the board and gives access to both the SPI interfaces The orientation and pinout of the connector is given below Pin Function 1 SCLOCK 2 MOSI 3 MISO 4 SS Table 2 Pin functions for SPI connector J7 ...

Страница 9: ...1 D5 Green LED SMD LED Farnell 515 620 1 D6 Yellow LED SMD LED Farnell 515 619 1 J1 Battery Connector Pair of 9V Snap on Battery Connectors Farnell 723 988 1 J2 PCB Mounted Socket PCB Mounted Socket 2 1mm Pin Diameter Farnell 224 959 1 J3 2 Pin 5 Pin 90o Single Row Header Farnell 143 104 1 J4 4 Pin 90o Single Row Header Farnell 672 130 1 J5 J7 10 Pin Single Row Header Farnell 511 766 1 J6 4 Pin Si...

Страница 10: ...Switch Farnell 177 807 1 S3 Toggle Switch Single Pole 2 Position Slide Switch Farnell 733 647 3 T1 T2 T3 Not populated Testpoint Raised Loop Testpoint Farnell 240 345 1 Y1 32 768 kHz XTAL Seiko MC 306 Farnell 300 3127 1 PCB Bare Board Eval ADuC814QS Rev A Bare Board 4 Each Corner PCB Stand off Stick on mounting feet Farnell 148 922 ...

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