Datasheet

Introduction

1.4 FUNCTIONALITY AND FEATURES

The dsPICDEM 80-Pin Starter Development Board provides the following capabilities:

Development Board Power

• On-board variable voltage regulator for 3.3V and 5.0V output with direct input from 9V,

AC/DC wall adapter

• 9 VDC power source input jack for development board

• Power-on indicator LED

MPLAB ICD 2 and MPLAB ICE 4000 Connections

• MPLAB ICD 2 programming connector

• Emulation header for connection to MPLAB ICE 4000

• Pad location for 80-pin TQFP dsPIC DSC device

Serial Communication Channel

• Single RS-232 communication channel

Analog

• One 10 kΩ Potentiometer (RP2)

• Microchip MCP41010 Digital Potentiometer

• Microchip MCP6022 Operational Amplifier

- Output configured as low-pass filter for digital potentiometer

- Input configured as low-pass filter for sampling input signals with the ADC

Device Clocking

• 7.37 MHz crystal (Y1) for dsPIC DSC device

Miscellaneous

• Reset push button switch (S3) for resetting the dsPIC DSC device

• Four red LEDs (RD4-RD7)

• Two push button switches (S1-S2) for external input stimulus

• 80-pin dual-row header with labeled pinouts.

• Prototype area for user hardware

• Supports 100-to-80-pin dsPIC33F and PIC24 Plug-in Modules

1.5 dsPICDEM 80-PIN STARTER DEVELOPMENT BOARD DEMONSTRATION

PROGRAM

The dsPICDEM 80-Pin Starter Development Board is supplied with a pre-loaded

demonstration program that exercises principal CPU functions and peripheral options

that allow interaction with the program as follows:

• Demonstrates interrupt handling by using switches S1 and S2 to blink LEDs RD4

and RD5, respectively.

• Demonstrates digital-to-analog conversion by generating an audio tone on LINE

OUT.

• Demonstrates analog-to-digital conversion by adjusting Potentiometer RP2 and

transmitting the resulting digital value to the HyperTerminal on a PC.

Refer to Chapter 3. “Demonstration Program Operation” for details on the

demonstration code operation.