DM300018 datasheet(95/115 Pages) MICROCHIP

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Hardware

DS51558A-page 89

14.1.2

dsPIC30F Device Sockets

The left side of the dsPICDEM 2 Development Board includes sockets (U2B1 and

U2A1) for 28 and 40-pin devices, respectively, in the Motor Control family. The right

side of the board includes sockets (U1C1, U1B1 and U1A1) for 18, 28 and 40-pin

devices, respectively, in the dsPIC30F General Purpose and Sensor family of devices.

These sockets are concentrically arranged headers that allow supported devices in DIP

packages to be plugged directly into the development board.

Table 14-2 lists the devices accommodated by each socket.

TABLE 14-2:

DEVICE/SOCKET LOCATIONS

The schematic for the general purpose and sensor device sockets is shown in Figure

A-2: “dsPICDEM™ 2 Development Board Schematic (Sheet 1 of 7)”. The

schematic for the motor control device socket is shown in Figure A-3: “dsPICDEM™

2 Development Board Schematic (Sheet 2 of 7)”.

14.1.3

Oscillators

Device clocking is provided by on-board crystal oscillators. A 7.3728 MHz crystal

oscillator(Y2) provides a system clock for the Motor Control family of devices. Another

7.3728 MHz crystal oscillator (Y5) provides a system clock for the General Purpose and

Sensor family of devices.

Through-holes and pads are provided for a user-furnished watch-type crystal and two

capacitors (Y3 and Y6) connected across pins SOSC1 and SOSC2 on the dsPIC30F

device. Such crystals may be used for real-time clock operation.

External clock connections are available for motor control devices at Y1 and general

purpose and sensor devices at Y4.

The schematics showing resistor and capacitor values for all oscillator options are

provided in Figure A-6: “dsPICDEM™ 2 Development Board Schematic (Sheet 5

of 7)”

14.1.4

Programming/Debugging

An RJ11 header has been provided on the dsPICDEM 2 Development Board in

order to interface with device programmers and debuggers like MPLAB ICD 2

and PRO MATE™ 3. DIP switches in S2, S3 and S4 are provided to connect

the PRO MATE 3 or MPLAB ICD 2 In-Circuit Debugger to the programming and

debugging pins on the installed dsPIC30F device.

Switches within S2 should always be used to designate the device being programmed

by MPLAB ICD2. These switches connect the clock and data lines from ICD 2 to the

Programming and Default Debugging channels (PGC/EMUC and PGD/EMUD) on the

dsPIC30F device. In some instances, users may find that their application uses certain

peripherals multiplexed on either the PGC/EMUC or the PGD/EMUD pins. In such

cases, they may avail of alternate debugging channels, EMUC1 & EMUD1 or EMUC2

& EMUD2 or EMUC3 & EMUD3. The dsPICDEM 2 Development Board supports the

Header Label

dsPIC30F Devices Accommodated

General Purpose and Sensor Family

U1A1

dsPIC30F3014, 4013

U1B1

dsPIC30F2012, 3013

U1C1

dsPIC30F2011, 3012

Motor Control Family

U2A1

dsPIC30F3011, 4011

U2B1

dsPIC30F2010, 3010,4012

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