Microchip Technology dsPICDEM MCSM Development Board User guide

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dsPICDEM™ MCSM

Development Board

User’s Guide

Note the following details of the code protection feature on Microchip devices:

• Microchip products meet the specification contained in their particular Microchip Data Sheet.

• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.

Trademarks

The Microchip name and logo, the Microchip logo, dsPIC, K

EELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,

rfPIC and UNI/O are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, Octopus, Omniscient Code Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, PIC

logo, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.

All other trademarks mentioned herein are property of their respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.

MCUs and dsPIC® DSCs, KEELOQ

code hopping

Chapter 1. Introduction

1.1 Overview ...................................................................................................... 11

1.2 Features ....................................................................................................... 13

1.3 What’s Included ............................................................................................ 13

1.4 Reference Documents and Webinars .......................................................... 14

Chapter 2. Getting Started

2.1 Board Setup ................................................................................................. 15

2.2 Programming and Debugging Application Code .......................................... 16

Chapter 3. Hardware

3.1 Hardware Architecture .................................................................................. 17

3.2 PIM Configuration ......................................................................................... 20

3.3 Board Connectors ........................................................................................ 24

3.4 User Interface Hardware .............................................................................. 27

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Table of Contents

Chapter 4. Troubleshooting

4.1 Common Problems ....................................................................................... 29

Appendix A. Board Layout and Schematics

Appendix B. Electrical Specifications

dsPICDEM™ MCSM Development Board User’s Guide

NOTES:

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/ or tool descriptions may differ from those in this document. Please refer to our web site (www.microchip.com) to obtain the latest documentation available.

Documents are identified with a “DS” number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is “DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the document.

For the most up-to-date information on development tools, see the MPLAB Select the Help menu, and then Topics to open a list of available on-line help files.

INTRODUCTION

IDE on-line help.

This preface contains general information that will be useful to know before using the dsPICDEM™ Motor Control Stepper Motor (MCSM) Development Board. Topics discussed in this preface include:

• Document Layout

• Conventions Used in this Guide

• Warranty Registration

• Recommended Reading

• The Microchip Web Site

• Development Systems Customer Change Notification Service

• Customer Support

• Document Revision History

DOCUMENT LAYOUT

This user’s guide describes how to use the dsPICDEM MCSM Development Board. The document is organized as follows:

• Chapter 1. “Introduction” – This chapter introduces the dsPICDEM MCSM

Development Board and provides a brief overview of its features.

• Chapter 2. “Getting Started” – This chapter provides information on getting

started with the dsPICDEM MCSM Development Board.

• Chapter 3. “Hardware” – This chapter describes the hardware on the dsPICDEM

MCSM Development Board.

• Chapter 4. “Troubleshooting” – This chapter provides information for

troubleshooting problems encountered while using the dsPICDEM MCSM Development Board.

dsPICDEM™ MCSM Development Board User’s Guide

• Appendix A. “Board Layout and Schematics” – This appendix provides

diagrams of the hardware layout, as well as schematic diagrams for the dsPICDEM MCSM Development Board.

• Appendix B. “Electrical Specifications” – This appendix provides pertinent

electrical specifications for the dsPICDEM MCSM Development Board.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB® IDE User’s Guide

Initial caps A window the Output window

Quotes A field name in a window or

Underlined, italic text with right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Italic Courier New A variable argument file.o, where file can be

Square brackets [ ] Optional arguments mcc18 [options] file

Curly braces and pipe character: { | }

Ellipses... Replaces repeated text

Preface

Emphasized text ...is the only compiler...

A dialog the Settings dialog A menu selection select Enable Programmer

“Save project before build”

dialog A menu path File>Save

A tab Click the Power tab

4‘b0010, 2‘hF1 where N is the total number of digits, R is the radix and n is a digit.

Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1 Constants 0xFF, ‘A’

any valid filename

[options]

Choice of mutually exclusive arguments; an OR selection

Represents code supplied by user

errorlevel {0|1}

var_name [,

var_name...]

void main (void)

{ ...

}

dsPICDEM™ MCSM Development Board User’s Guide

WARRANTY REGISTRATION

Please complete the enclosed Warranty Registration Card and mail it promptly. Sending in the Warranty Registration Card entitles users to receive new product updates. Interim software releases are available at the Microchip web site.

Chapter 1. Introduction

The dsPICDEM MCSM Development Board is targeted to control both unipolar and bipolar stepper motors with no hardware configuration changes. This flexible and cost-effective board can be configured in different ways for use with Microchip’s specialized dsPIC33F Motor Control Digital Signal Controllers (DSCs).

The dsPICDEM MCSM Development Board offers a mounting option to connect either a 28-pin SOIC device or a generic 100-pin Plug-In Module (PIM). The board also has two full-bridge inverters. The hardware is designed in such a way that no hardware changes are necessary for 8-, 6- or 4-wire stepper motors in either bipolar or unipolar configurations. Topics covered include:

•Overview

•Features

• What’s Included

• Reference Documents and Webinars

1.1 OVERVIEW

Figure 1-1 shows a photograph of the dsPICDEM MCSM Development Board. A dsPIC33F device uses the MOSFET driver to drive the two full-bridge inverters that power the motor windings. The board includes various circuitries to perform the following functions:

• Drive two motor windings with the two on-board full-bridge inverters

• Measure feedback and other analog signals (i.e., current, DC voltage,

• Communicate with a host computer or an external device via USB

The dsPICDEM MCSM Development Board supports terminal voltages up to 80V and currents up to 3A. Refer to Appendix B. “Electrical Specifications” for more information.

Potentiometer and Fault signals)

dsPICDEM™ MCSM Development Board User’s Guide

FIGURE 1-1: dsPICDEM MCSM DEVELOPMENT BOARD

1.2 FEATURES

The key features of this board include the following:

• Devices supported:

• Motor control device (U2) socket

• Motor control interfaces:

• Input/output control switches:

• Communication Ports:

• Built-in power supplies

• Power supply connectors:

• Programming Connectors:

Introduction

- 28-pin to 100-pin dsPIC33FJ12MC202 PIM (MA330014) with a dsPIC33F

- 44-pin to 100-pin dsPIC33FJ32MC204 PIM (MA330017) and dsPIC33FJ128MC804 PIM (MA330018) with a dsPIC33F motor control device (U2) socket

- 100-pin to 100-pin dsPIC33FJ256MC710 PIM (MA330013) with a dsPIC33F

- The dsPIC33FJ12MC202 Motor Control device in SOIC package (U3) footprint

- Two full-bridge inverters

- Two phase current sense resistors

- DC bus voltage sense resistor

- Overcurrent protection

- One push button (S1)

- Reset push button (RESET)

-10 kΩ potentiometer (POT)

- LED indicators for PWM outputs arranged in a full-bridge format

- LED indicator for overcurrent

- UART communication via USB (J4)

- 15V power supply, maximum power available 11 W

- 3.3V power supply, maximum power available 2 W

- 24V power input connector (J6) for the controller and power stage

- Auxiliary Power Tab Fast-On connectors (BP1 and BP2) for the power stage

- ICSP™ connector for programming a dsPIC DSC device (J2)

- RJ11 connector for programming a dsPIC DSC device (J1)

- ICSP connector for programming the PIC18LF2450 USB-to-UART Bridge (J3)

1.3 WHAT’S INCLUDED

Note: The MCSM Development Board is available in two configurations:

• dsPICDEM MCSM Development Board

• dsPICDEM MCSM Development Board Kit

dsPICDEM™ MCSM Development Board User’s Guide

The dsPICDEM MCSM Development Board with the part number DM330022 contains the following:

• dsPICDEM MCSM Development Board

• dsPIC33FJ32MC204 Plug-In-Module

• USB-to-mini-USB cable

• Screwdriver

• dsPICDEM MCSM Development Board CD ROM, which includes:

- This user’s guide

- Data sheets for dsPIC families

- Example programs for use with the dsPIC DSC devices

The dsPICDEM MCSM Development Board Kit with part number DV330021 contains the following:

• dsPICDEM MCSM Development Board

• dsPIC33FJ32MC204 Plug-In-Module (PIM)

• USB-to-mini-USB cable

• Screwdriver

• dsPICDEM MCSM Development Board CD ROM, which includes:

- This user’s guide

- Data sheets for dsPIC DSC families

- Example programs for use with the dsPIC DSC devices

• 24V Power Supply

• Leadshine Stepping Motor (P/N 42HS03)

• use the following link:

http://www.leadshine.com

If you are missing any part of the kit, please contact your nearest Microchip sales office, which is listed on the last page of this manual.

1.4 REFERENCE DOCUMENTS AND WEBINARS

In addition to the documents listed in the “Recommended Reading” section, the following are also available from Microchip to support the use of the dsPICDEM MCSM Development Board.

•AN907 “Stepping Motors Fundamentals”

•AN906 “Stepper Motor Control Using the PIC16F684”

•AN822 “Motor Microstepping with PIC18C452”

• Stepper motor webinars are available at: http://techtrain.microchip.com/webseminars/Archived.aspx

- Stepper Motors Part 1: Types of Stepper Motors

- Stepper Motors Part 2: Stepper Motor Control

You can obtain these reference documents from your nearest Microchip sales office (listed in the last page of this document) or by downloading them from the Microchip web site.

This chapter describes how to set up the dsPICDEM MCSM Development Board hardware and software; and how to run the included demonstration software. Refer to Chapter 3. “Hardware” for detailed information on the board and its components.

Topics in this chapter include:

• Board Setup

• Programming and Debugging Application Code

2.1 BOARD SETUP

The dsPICDEM MCSM Development Board is intended to drive bipolar or unipolar stepper motors. Before connecting the motor, make sure that the power rating of the motor is equal to or less than the power rating of the board, as shown in Appendix B. “Electrical Specifications”. Also, make sure the configuration resistors are correct for the firmware and the specific dsPIC DSC device mounted on the socket. Failure to comply with this warning could lead to malfunction of the board and the motor, and could result in physical harm.

dsPICDEM™ MCSM

DEVELOPMENT BOARD

USER’S GUIDE

Chapter 2. Getting Started

WARNING

Before beginning the start-up procedure, complete a visual check of the board and the motor for connectivity and mechanical damage. If damage is found, DO NOT power-up the board. Otherwise, you may further damage the equipment. Contact Microchip’s local office or distributor immediately.

The following procedure describes how to set up the dsPICDEM MCSM Development Board to run with the demonstration software. The stepper motor used for the demonstration is the Leadshine Stepping Motor (P/N 42HS03).

1. Place the dsPICDEM MCSM Development Board on a sturdy insulated platform.

2. Make sure that the dsPIC33FJ32MC204 device or an appropriate PIM is mounted in the respective socket.

3. Connect the stepper motor (42HS03) to J8. Connect the motor phases in a bipolar series connection as described in Table 2-1.

TABLE 2-1: MOTOR CONFIGURATION TABLE

J8 Pin Number

J8 Pin Name

1 NC Green+Yellow — Yellow —

2 M1 Black Black+Yellow Black Black

3 DC+ — — Orange Green+Yellow

4 M2 Orange Green+Orange Green Orange

5 M3 Red Red+White Red Red

6 DC+ — — White Blue+White

7 M4 Brown Blue+Brown Blue Brown

8 NC Blue+White — Brown —

Bipolar

Series

Bipolar Parallel Bipolar Half-winding Unipolar

dsPICDEM™ MCSM Development Board User’s Guide

4. Connect the 24V power supply to J6.

5. Press S1 to run the motor.

6. Vary the motor’s speed with the potentiometer.

7. Press S1 to switch to full-step wave mode, full-step, half-step and various microstepping modes. Pushing S1 after the 256 the motor. Press S1 again to repeat the cycle.

Operating the dsPICDEM MCSM Development Board using the on-board POT and switch button cannot offer the flexibility required in most applications and it is only intended as a quick start demonstration. To have more control over the motor using a real-time communication tool, please refer to the next section.

2.2 PROGRAMMING AND DEBUGGING APPLICATION CODE

The following procedure describes how to program the dsPICDEM MCSM Development Board in Debug mode:

1. Place the dsPICDEM MCSM Development Board on a sturdy insulated platform.

2. Make sure that the dsPIC33FJ32MC204 device or an appropriate PIM is mounted in the respective socket.

3. Connect the stepper motor (42HS03) to J8. Connect motor phases in a bipolar series connection as described in Table 2-1.

4. Connect the 24V power supply to J6.

5. Connect PICkit™ 3 In-Circuit Debugger/Programmer, MPLAB REAL ICE™ In-Circuit Emulator to the computer and to the board at J1 or J2.

6. Connect the USB cable to J4 and to the computer.

7. Download the code for the dsPIC33FJ32MC204 from the Microchip web site .

8. Build the project and download the program into the processor.

9. Click the Run icon when in Debug mode.

microstep step setting stops

ICD 3 or MPLAB

Note: For more information on running stepper motors, refer to

Section 1.4 “Reference Documents and Webinars”.

Chapter 3. Hardware

dsPIC33FJXXXMCXXX

PIM

Drivers

IMOTOR1

FAULT

IMOTOR2

Safe Current

Level

Amplifier

Comparator

PWM1H1

DC_BUS

24 VDC

BP1

BP2

15V3.3V

Regulator

PWM1L1 PWM1H2 PWM1L2 PWM1H3 PWM1L3 PWM2H1 PWM2L1

UART

USB

ICD2

J1/J2

3.3V

POT

DC_BUS

This chapter describes the hardware used in the dsPICDEM MCSM Development Board. Topics covered include:

• Hardware Architecture

• PIM Configuration

• Board Connectors

• User Interface Hardware

3.1 HARDWARE ARCHITECTURE

The dsPIC DSC devices feature an 8-channel, high-speed PWM with Complementary mode output, a programmable ADC trigger on the PWM reload cycle, digital dead time control, internal shoot-through protection and hardware fault shutdown.

These features make the dsPIC DSC an ideal solution for high-performance stepper motor control applications where full control of the full-bridge inverter is required.

Figure 3-1 provides a simplified block diagram of the development board hardware.

dsPICDEM™ MCSM

DEVELOPMENT BOARD

USER’S GUIDE

FIGURE 3-1: dsPICDEM MCSM DEVELOPMENT BOARD BLOCK DIAGRAM

dsPICDEM™ MCSM Development Board User’s Guide

T1 T2 T1 T2

PWM1H1PWM1L1

PWM1H2PWM1L2

PWM1H1

PWM1L1

PWM1H2

PWM1L2

PWM1H1PWM1L1

PWM1H2PWM1L2

3.1.1 Power Stage

The dsPICDEM MCSM Development Board features two full-bridge inverters to accommodate a bipolar stepper motor. MOSFET gate signals are powered from a 15V permanent supply while the full-bridge inverters can be powered from a supply up to 80V.

3.1.1.1 MOSFET DRIVER

Although the dsPIC DSC devices can operate in Complementary PWM mode, Independent PWM mode is still possible. In this case, internal dead time control and shoot-through protection circuits are disabled. In order to protect the power stage from high shoot-through currents in Independent PWM mode, the chosen MOSFET driver also has a built-in shoot-through protection and a small fixed dead time. In Independent PWM mode, the development board is suitable for controlling two brushed DC motors with full direction control, or up to four DC motors with a single turning direction.

3.1.1.2 SWITCHING TOPOLOGY

Driving a stepper motor in a full-bridge topology requires switching the opposite diagonal MOSFETs on and off at the same time in order to reverse the drive current and to accommodate all possible decay modes. Since all PWMxHx pins are on at the same time (for example, PWM1H1 and PWM1H2), it is not possible to drive all of the high-side MOSFETs with the PWMxHx signals. Figure 3-2 shows the PWM and MOSFET assignment.

Driving the high PWM pins active will run the current through a motor winding in one direction, while driving the low PWM pins active will run the current through the winding in the opposite direction. By using this topology in addition to the dsPIC PWM Override feature, all decay modes for the winding current can be achieved.

Refer to Appendix A. “Board Layout and Schematics” for the complete schematic and PWM pin assignments.

FIGURE 3-2: MOSFET PWM ASSIGNMENT

Hardware

Gain R

SHUNT

R28R29+

---------------------- -

⋅=

Note: The default gain value is 0.75 V/A, allowing a resolution of 67 µA/bit with

a 10-bit ADC.

DC_REF

----- -

DC_BUS=

3.1.2 Current Sensing

Two shunt resistors are available for current sensing, one for each of the two motor windings. In order to read both positive and negative currents, the amplifier circuit is designed with an offset of V current range of ±2.2A.

To calculate the amplifier gain, use the formula provided in Equation 3-1:

EQUATION 3-1: AMPLIFIER GAIN CALCULATION FORMULA

The formula shown in Equation 3-1 is a simplified version of the complete formula and is only valid when R

are needed, use the above formula to calculate R and then replace both R changes for R

and R45.

The DC voltage supplied to the power stage is measured with a simple resistor divider. To calculate the DC_REF signal used for this purpose use the formula provided in Equation 3-2:

REF = AVDD/2. The amplifier gain allows for a maximum

= R29 = R33 = R34 and R27 = R35. If changes to the amplifier gain

corresponding to the desired gain,

and R35 with the calculated resistor value. Make the same

EQUATION 3-2: DC_REF SIGNAL CALCULATION FORMULA

This measurement is needed in the PI loop calculation and for algorithms such as automatic motor induction and resistance identification.

3.1.3 Fault Protection

The dsPICDEM MCSM Development Board features an overcurrent fault detection, which triggers a PWM shutdown. Each phase current is amplified and then compared with a fixed “safe” current value. A value of 1.7A is set for the dsPICDEM MCSM Development Board; however, the user can change this limit by changing the resistor divider made by R48 and R51. When either of the two phase currents is above the “safe” current level, a Fault signal is triggered and the dsPIC DSC hardware module automatically switches off all PWM outputs.

The Fault LED (D15) is active only when an overcurrent is present in the motor windings. It will go inactive immediately after the internal dsPIC Fault circuit shuts down the PWM pins. In this case, the LED will not be visible as the on-time is very short. The Fault LED will only be visible if the Fault is persistent, that is when the software fault shutdown is disabled.

For details about the PWM module Fault feature, please refer to Section 14. “Motor

Control PWM” (DS70187) in the “dsPIC33F Family Reference Manual”.

WARNING

If the Fault LED is permanently active, power off the board immediately to avoid damage to the power Mosfets.

dsPICDEM™ MCSM Development Board User’s Guide

3.2 PIM CONFIGURATION

This section summarizes the resistor configurations required to connect the PIM pins to the dsPIC DSC pins. The following PIMs can be configured on the dsPICDEM MCSM Development Board:

• dsPIC33FJ256MC710 PIM (MA330013)

• dsPIC33FJ12MC202 PIM (MA330014)

• dsPIC33FJ32MC204 PIM (MA330017)

• dsPIC33FJ128MC804 PIM (MA330018)

Table 3-1, Table 3-2 and Table 3-3 describe the PIM configuration details. The dsPIC33FJ32MC204 and dsPIC33FJ128MC804 PIMs are pin-compatible and share the same table.

Hardware

TABLE 3-1: dsPIC33FJ256MC710 CONFIGURATION DETAILS

PIM Pin

Number

3PWM1H3 3PWM3H/RE5 —

4 PWM2L1 4 PWM4L/RE6 —

5PWM2H1 5PWM4H/RE7 —

13 MCLR 13 MCLR

18 PWM2H1 — AN20/FLTA/INT1/RE8 Not used, set pin as input

19 FAULT_1 19 AN21/FLTB/INT2/RE9 Solder R86, remove R87

20 POT 20 AN5/QEB/CN7/RB5 Not used, set pin as input

22 POT 22 AN3/INDX/CN5/RB3 —

23 DC_REF 23 AN2/SS1/CN4/RB2 —

24 IMOTOR2 24 PGEC3/AN1/CN3/RB1 —

25 IMOTOR1 25 PGED3/AN0/CN2/RB0 —

26 PGC 26 PGEC1/AN6/OCFA/RB6 —

27 PGD 27 PGED1/AN7/RB7 —

35 DC_REF 35 AN11/RB11 Not used, set pin as input

41 POT 41 AN12/RB12 Not used, set pin as input

49 USB_RX 49 U2RX/CN17/RF4 —

50 USB_TX 50 U2TX/CN18/RF5 —

51 USB_TX 51 U1TX/RF3 —

52 USB_RX 52 U1RX/RF2 —

54 USB_VBUS — SDI1/RF7 Not used, set pin as input

55 USB_3.3V — SCK1/INT0/RF6 Not used, set pin as input

56 USB_D- — SDA1/RG3 Not used, set pin as input

57 USB_D+ — SCL1/RG2 Not used, set pin as input

63 OSCI 63 OSC1/CLKIN/RC12 —

64 OSCO 64 OSC2/CLKO/RC15 —

68 FAULT_1 68 IC1/RD8 Not used, set pin as input

70 BTN_1 70 IC3/RD10 —

76 USB_TX 76 OC2/RD1 Not used, set pin as input

77 PWM2H1 77 OC3/RD2 Not used, set pin as input

78 PWM2L1 78 OC4/RD3 Not used, set pin as input

83 USB_TX — OC7/CN15/RD6 Not used, set pin as input

84 USB_RX — OC8/UPDN//CN16/RD7 Not used, set pin as input

93 PWM1L1 93 PWM1L/RE0 —

94 PWM1H1 94 PWM1H/RE1 —

98 PWM1L2 98 PWM2L/RE2 —

99 PWM1H2 99 PWM2H/RE3 —

100 PWM1L3 100 PWM3L/RE4 —

Note 1: When using a dsPIC33FJ256MC710 it is necessary to set PIM pin 19 as FAULT_1. PIM Pin 19 can be

configured for FAULT_1 or PWM2L1 signals by soldering the appropriate resistor as follows:

Labels on the

MCSM Board

Pin Number Pin Name

dsPIC33FJ256MC710

(1)

Comment/Board

Resistor Configuration

—

• For FAULT_1 : Remove R87 and Solder R86

• For PWM2L1 : Remove R86 and Solder R87 (Default)

dsPICDEM™ MCSM Development Board User’s Guide

TABLE 3-2: dsPIC33FJ12MC202 CONFIGURATION DETAILS

PIM Pin

Number

3 PWM1H3 18 TDI/PWM1H3/RP10/CN16/RB10 Solder R12

4PWM2L1 — — —

5PWM2H1 — — —

13 MCLR 26 MCLR

18 PWM2H1 14 TCK/PWM2H1/SCL1/RP8/CN22/RB8 Solder R11

19 PWML1 15 TDO/PWM2L1/SDA1/RP9/CN21/RB9 Solder R14, solder R13

20 POT 2 PGC1/EMUC1/AN3/RP1/CN5/RB1 Solder R31, remove R21

22 POT — — Remove R9

23 DC_REF — — —

24 IMOTOR2 28 PGC2/EMUC2/AN1/VREF-/CN3/RA1 Solder R25, remove R26

25 IMOTOR1 27 PGD2/EMUD2/AN0/VREF+/CN2/RA0 Solder R24, remove R27

26 PGC 9 PGC3/EMUC3/SOSCO/T1CK/CN0/RA4 —

27 PGD 8 PGD3/EMUD3/SOSCI/RP4/CN1/RB4 —

35 DC_REF 1 PGD1/EMUD1/AN2/RP0/CN4/RB0 Solder R20, remove R28

41 POT — — —

49 USB_RX — — —

50 USB_TX — — —

51 USB_TX — — —

52 USB_RX — — —

54 USB_VBUS — — —

55 USB_3.3V — — —

56 USB_D- — — —

57 USB_D+ — — —

63 OSCI 6 OSCI/CLKI/CN30/RA2 —

64 OSCO 7 OSCO/CLKO/CN29/RA3 —

68 FAULT_1 11 ASDA1/RP5/CN27/RB5 Solder R6, remove R5, R33

70 BTN_1 13 INT0/RP7/CN23/RB7 Solder R10, remove R9

76 USB_TX — — —

77 PWM2H1 — — —

78 PWM2L1 — — —

83 USB_TX 3 AN4/RP2/CN6/RB2 Solder R30, remove R22

84 USB_RX 4 AN5/RP3/CN7/RB3 Solder R29, remove R23

93 PWM1L1 23 PWM1L1/RP15/CN11/RB15 Solder R19

94 PWM1H1 22 PWM1H1/ RP14/CN12/RB14 Solder R18

98 PWM1L2 21 PWM1L2/RP13/CN13/RB13 Solder R17

99 PWM1H2 20 PWM1H2/RP12/CN14/RB12 Solder R16

100 PWM1L3 19 TMS/PWM1L3/RP11/CN15/RB11 Solder R15

Note 1: No hardware changes are needed if the standard dsPICDEM MCSM Development Board is used with a

2: PIM Pin 19 can be configured for FAULT_1 or PWM2L1 signals by soldering the appropriate resistor as

Labels on the

MCSM Board

standard dsPIC33FJ12MC202 PIM.

follows:

Number

dsPIC33FJ12MC202

Pin Name

(1,2)

PIM Resistor

Configuration

—

• For FAULT_1 : Remove R87 and Solder R86

• For PWM2L1 : Remove R86 and Solder R87 (Default)

Hardware

TABLE 3-3: dsPIC33FJ32MC204 AND dsPIC33FJ128MC804 CONFIGURATION DETAILS

dsPIC33FJ32MC204

PIM Pin

Number

3 PWM1H3 8 PGED2/EMUD2/PWM1H3/RP10/CN16/RB10 Solder R6

4PWM2L1 — — —

5PWM2H1 — — —

13 MCLR 18 MCLR

18 PWM2H1 44 SCL1/RP8/CN22/RB8 Not used, set pin as input

19 PWM2L1 1 SDA1/RP9/CN21/RB9 Not used, set pin as input

20 POT 26 AN7/RP17/CN9/RC1 Not used, set pin as input

22 POT — — —

23 DC_REF — — —

24 IMOTOR2 20 AN1/VREF-/CN3/RA1 Solder R13

25 IMOTOR1 19 AN0/VREF+/CN2/RA0 Solder R12

26 PGC 42 PGEC3/EMUC3/ASCL1/RP6/CN24/RB6 —

27 PGD 41 PGED3/EMUD3/ASDA1/RP5/CN27/RB5 —

35 DC_REF 21 PGED1/EMUD1/AN2/C2IN-/RP0/CN4/RB0 Solder R14

41 POT 22 PGEC1/EMUC1/AN3/C2IN+/RP1/CN5/RB1 Solder R22

49 USB_RX — — —

50 USB_TX — — —

51 USB_TX — — —

52 USB_RX — — —

54 USB_VBUS — — —

55 USB_3.3V — — —

56 USB_D- — — —

57 USB_D+ — — —

63 OSCI 30 OSCI/CLKI/CN30/RA2 —

64 OSCO 31 OSCO/CLKO/CN29/RA3 —

68 FAULT_1 4 RP24/CN20/RC8 Solder R2, remove R18

70 BTN_1 43 INT0/RP7/CN23/RB7 Solder R3, remove R26

76 USB_TX 38 RP21/CN26/RC5 Solder R30

77 PWM2H1 2 PWM2H1/RP22/CN18/RC6 Solder R32

78 PWM2L1 3 PWM2L1/RP23/CN17/RC7 Solder R31

83 USB_TX 32 TDO/RA8 Not used, set pin as input

84 USB_RX 33 SOSCI/RP4/CN1/RB4 Solder R20

93 PWM1L1 15 PWM1L1/RP15/CN11/RB15 Solder R11

94 PWM1H1 14 PWM1H1/RP14/CN12/RB14 Solder R10

98 PWM1L2 11 PWM1L2/RP13/CN13/RB13 Solder R9

99 PWM1H2 10 PWM1H2/RP12/CN14/RB12 Solder R7

100 PWM1L3 9 PGEC2/EMUC2/PWM1L3/RP11/CN15/RB11 Solder R8

Note 1: No hardware changes are needed if the standard dsPICDEM MCSM Development Board is used with a

Labels on the

MCSM Board

standard dsPIC33FJ12MC204 or dsPIC33FJ128MC804 PIM.

2: PIM Pin 19 can be configured for FAULT_1 or PWM2L1 signals by soldering the appropriate resistor as

follows:

Number

• For FAULT_1 : Remove R87 and Solder R86

• For PWM2L1 : Remove R86 and Solder R87 (Default)

dsPIC33FJ128MC804

Pin Name

PIM Resistor

Configuration

—

dsPICDEM™ MCSM Development Board User’s Guide

D3-D10

POT1

BP2

BP1

RESET

3.3 BOARD CONNECTORS

Figure 3-3 shows the various user interface components available on the dsPICDEM MCSM Development Board. Table 3-4 describes the hardware connection between the PICkit™ 3, MPLAB supply, and the dsPICDEM MCSM Development Board connectors.

FIGURE 3-3: dsPICDEM MCSM DEVELOPMENT BOARD USER INTERFACE COMPONENTS

ICD 3 or MPLAB REAL ICE™ In-Circuit Emulator, the power

TABLE 3-4: dsPICDEM MCSM DEVELOPMENT BOARD USER INTERFACE

COMPONENTS

Designator Description

BP1-BP2 Auxiliary power supply connector

D3-D10 PWM LEDs

RESET Device Reset switch

POT1 Potentiometer

S1 Push button switch 1

U2 Plug-in Module (PIM) adaptor

J1 RJ11, 6-pin connector for programming a dsPIC

J2 ICSP connector for programming a dsPIC DSC device

J3 ICSP™ programmer interface connector for programming the PIC18LF2450

USB-to-UART bridge

J4 USB interface port

J5 24V power supply select jumper

J6 24V Input power supply connector

J7 Auxiliary power supply select jumper

J8 Motor power connector

DSC device

Hardware

3.3.1 Input Power Connector (J6, BP1-BP2)

The dsPICDEM MCSM Development Board receives the power for control circuits from a +24V power supply. The 24V supply is always needed as it supplies 15V and 3.3V necessary for the dsPIC DSC and for the interface between the dsPIC DSC and the power stage. The power stage DC bus voltage can be connected to the development board through the J6 or BP1-BP2 connectors.

3.3.2 DC Bus Power Supply Connector (J5 and J7)

By default, jumper J5 is short and jumper J7 is open, and the +24V input power supply connected to J6 supplies both the control circuits and the DC bus voltage to the development board. If jumper J7 is short and jumper J5 is open, the BP1-BP2 connectors supply the DC bus voltage to the development board power stage and J6 supplies the control circuits.

The 0-80V ADC power supply can be connected between BP1-BP2.

3.3.3 USB Interface (J4)

The development board uses an on-board PIC18 interface as a bridge between the UART and the USB. The PIC18 UART pins are connected to the dsPIC33F devices on different ports depending on the specific dsPIC33F device used. For the specific devices that do not have remappable peripherals, additional UART RX/TX are available on the device designated port for UART communication.

For dsPIC DSC devices that have an embedded USB port, populate R7, R8, R9 and R10 with 0Ω resistors, and disable the PIC18 USB communication by removing R84 and R85.

3.3.4 ICSP Connector for dsPIC DSC (J1/J2)

The MPLAB ICD 3 and MPLAB REAL ICE Connector is an RJ11 female connector (J1) that connects the MPLAB ICD 3 or MPLAB REAL ICE In-Circuit Debugger to the dsPIC33F device for programming and debugging purposes. The PICkit 3 In-Circuit Debugger/Programmer can be connected to the board using a 6-pin ICSP connector (J2).

3.3.5 ICSP for PIC18 (J3)

J3 is a 6-pin connector that connects the PICkit 3 In-Circuit Debugger/Programmer to the PIC18F device. The development board uses the on-board PIC18 interface as a bridge between the UART and USB. The PIC18F can be programmed for USB communication.

3.3.6 Motor Connector (J8)

The motor connector has eight terminals. Table 3-5 lists the functionality of each terminal.

TABLE 3-5: MOTOR CONNECTOR DETAILS

Terminal Number Designator Description

1 NC Not connected

2 M1 Motor wire 1 (phase 1)

3 DC+ DC bus voltage

4 M2 Motor wire 2 (phase 1)

5 M3 Motor wire 3 (phase 2)

6 DC+ DC bus voltage

7 M4 Motor wire 4 (phase 2)

8 NC Not connected

dsPICDEM™ MCSM Development Board User’s Guide

The connector is configured in such a way so that all eight motor wires can be connected in all possible configurations. Considering an eight-wire motor in a bipolar configuration (series- or half-winding), two wires will be left floating. The NC pins are available to accommodate the two floating wires.

The DC bus connection is placed between wires of two different phases to accommodate the center tap of a winding in unipolar configurations. Refer to Table 3 for details on how to connect the motor wires to J8 for all possible configurations.

3.3.7 Test Points

Table 3-6 lists the test points that can be used to check various signals.

TABLE 3-6: TEST POINTS

Test Points Description

POT POT signal

15V 15V MOSFET driver supply

3.3V 3.3V digital supply

DD Analog supply (3.3V)

AVSS Analog ground

IMOTOR1 Motor current phase 1

IMOTOR2 Motor current phase 2

REF Zero current reference voltage

DC_REF DC_BUS voltage input to ADC

IREF Reference current for Fault detection

PWM1H1 PWM output for wire 1 top switch

PWM1L1 PWM output for wire 1 bottom switch

PWM1H2 PWM output for wire 2 bottom switch

PWM1L2 PWM output for wire 2 top switch

PWM1H3 PWM output for wire 3 top switch

PWM1L3 PWM output for wire 3 bottom switch

PWM2H1 PWM output for wire 4 bottom switch

PWM2L1 PWM output for wire 4 top switch

3.4 USER INTERFACE HARDWARE

The dsPICDEM MCSM Development Board consists of the following push buttons, LEDs and potentiometers:

• One push button

• One potentiometer

• Eight PWM LEDs

• One power-on status LED

• Two USB LEDs

• One Fault LED

• Device Reset push button

TABLE 3-7: INDICATORS AND HUMAN INTERFACES

Label Hardware Element Description

S1 Push button; this push button is connected to a port pin. When momentarily

pressed, the switch connects the respective port pin to Ground.

POT1 10 kΩ potentiometer; it is connected to analog input pin.

RESET Push button; this push button, when pressed, causes a device Reset.

D1 USB communication indicator, which indicates the device has been detected.

D2 USB bus indicator, which indicates that the device is connected to the USB bus.

D3-D10 LEDs, which indicate the PWM pin status. When an LED is ON, the respective

PWM pin is high.

D14 Power-on status LED, which indicates the status of the

D15 Fault LED; indicates an overcurrent.

Hardware

+3.3V regulator.

dsPICDEM™ MCSM Development Board User’s Guide

NOTES:

Chapter 4. Troubleshooting

This chapter provides information for troubleshooting problems encountered while using the dsPICDEM MCSM Development Board.

4.1 COMMON PROBLEMS

1. Problem: USB connection in DMCI fail (amber and green LEDs are ON)

This condition is accompanied by the following error message:

FIGURE 4-1: DMCI CONNECTION FAILURE

dsPICDEM™ MCSM

DEVELOPMENT BOARD

USER’S GUIDE

Solution:

a) Disconnect the USB cable. When disconnected, the green LED turns OFF. b) Reconnect the USB cable. When reconnected, the amber LED turns OFF,

and the green LED turns ON.

2. Problem: Switching noise

While using a stepper motor, inductances are being switched on and off frequently. Switching noise is present and can be seen with an oscilloscope.

Solution: To properly measure a signal, connect a probe to the desired signal and one to ground and perform a division. The signal that results is what the dsPIC DSC sees.

dsPICDEM™ MCSM Development Board User’s Guide

NOTES:

dsPICDEM™ MCSM

DEVELOPMENT BOARD

USER’S GUIDE

Appendix A. Board Layout and Schematics

FIGURE A-1: dsPICDEM™ MCSM DEVELOPMENT BOARD LAYOUT (TOP)

dsPICDEM™ MCSM Development Board User’s Guide

PWM1L3

PWM1H3

PWM2L1

PWM2H1

PWM1L2

PWM1L1

PWM1H1

PWM1H2

FIGURE A-2: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 1 OF 3)

Board Layout and Schematics

D13

SS1P3L

D11

BAT17

FIGURE A-3: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 2 OF 3)

dsPICDEM™ MCSM Development Board User’s Guide

FIGURE A-4: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 3 OF 3)

dsPICDEM™ MCSM

DEVELOPMENT BOARD

USER’S GUIDE

Appendix B. Electrical Specifications

This appendix provides important electrical specifications for the dsPICDEM MCSM Development Board.

TABLE B-1: DC INPUT RATING

Parameter Condition Min Typ Max Unit

Power supply connected to J6 — 18 24 35 VDC

Power supply connected to BP1-BP2 J5 open, J7 closed 0 24 80 VDC

TABLE B-2: DC OUTPUT RATING (J8)

Parameter Condition Min Typ Max Unit

Voltage J5 closed, J7 open

J5 open, J7 closed

Peak Current — 0 1 3.5 A

Power Rating — 0 9

Note 1: While driving two phases ON at 1A each through 4.6Ω winding resistance.

2: Maximum power tested is 40W. 3: Maximum theoretical power with no additional heat sink is: 80V * 1.7A = 135W.

0 0

24 24

(1)

24 80

(2,3)

VDC

dsPICDEM™ MCSM Development Board User’s Guide

NOTES:

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Index

Amplifier Gain Calculation Formula.......................... 19

Block Diagram.......................................................... 12

Board Layout............................................................ 31

Connectors and Jumpers ......................................... 24

Current Sensing ....................................................... 19

Customer Notification Service.................................... 9

Customer Support.................................................... 10

DC Bus Power Supply Connector (J5 and J7) ......... 25

DC_REF Signal Calculation Formula....................... 19

Documentation

Conventions........................................................ 7

Layout ................................................................. 5

Fault LED (D15) ....................................................... 19

Fault Protection........................................................ 19

ICSP Connector for dsPIC DSC (J1/J2)................... 25

ICSP for PIC18 (J3) ................................................. 25

Indicators and Human Interfaces ............................. 27

Input Power Connector (J6, BP1-BP2) .................... 25

Internet Address......................................................... 9

Key Features............................................................ 13

Kit Contents ............................................................. 13

Microchip Internet Web Site....................................... 9

MOSFET PWM Assignment..................................... 18

Motor Configuration ................................................. 15

Motor Connector (J8) ............................................... 25

PIM Configuration .................................................... 20

dsPIC33FJ128MC804 ...................................... 23

dsPIC33FJ12MC202 ........................................ 22

dsPIC33FJ256MC710 ...................................... 21

dsPIC33FJ32MC204 ........................................ 23

Plug-In Module (PIM) ............................................... 11

Power Stage ............................................................ 18

MOSFET Driver ................................................ 18

Switching Topology........................................... 18

Reading, Recommended ........................................... 8

Schematics

Sheet 1 of 3....................................................... 32

Sheet 2 of 3....................................................... 33

Sheet 3 of 3....................................................... 34

Signal Test Points .................................................... 26

Stepper Motors

Bipolar............................................................... 11

Unipolar............................................................. 11

Troubleshooting

DMCI Connection Failure.................................. 29

Switching Noise ................................................ 29

USB Interface (J4).................................................... 25

User Interface Hardware .......................................... 27

Warranty Registration ................................................ 8

WWW Address........................................................... 9

Worldwide Sales and Service

AMERICAS

Corporate Office

2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com

Atlanta

Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455

Boston

Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088

Chicago

Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075

Cleveland

Independence, OH Tel: 216-447-0464 Fax: 216-447-0643

Dallas

Addison, TX Tel: 972-818-7423 Fax: 972-818-2924

Detroit

Farmington Hills, MI Tel: 248-538-2250 Fax: 248-538-2260

Kokomo

Kokomo, IN Tel: 765-864-8360 Fax: 765-864-8387

Los Angeles

Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608

Santa Clara

Santa Clara, CA Tel: 408-961-6444 Fax: 408-961-6445

Toronto

Mississauga, Ontario, Canada Tel: 905-673-0699 Fax: 905-673-6509

ASIA/PACIFIC

Asia Pacific Office

Suites 3707-14, 37th Floor Tower 6, The Gateway Harbour City, Kowloon Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431

Australia - Sydney

Tel: 61-2-9868-6733 Fax: 61-2-9868-6755

China - Beijing

Tel: 86-10-8528-2100 Fax: 86-10-8528-2104

China - Chengdu

Tel: 86-28-8665-5511 Fax: 86-28-8665-7889

China - Hong Kong SAR

Tel: 852-2401-1200 Fax: 852-2401-3431

China - Nanjing

Tel: 86-25-8473-2460 Fax: 86-25-8473-2470

China - Qingdao

Tel: 86-532-8502-7355 Fax: 86-532-8502-7205

China - Shanghai

Tel: 86-21-5407-5533 Fax: 86-21-5407-5066

China - Shenyang

Tel: 86-24-2334-2829 Fax: 86-24-2334-2393

China - Shenzhen

Tel: 86-755-8203-2660 Fax: 86-755-8203-1760

China - Wuhan

Tel: 86-27-5980-5300 Fax: 86-27-5980-5118

China - Xiamen

Tel: 86-592-2388138 Fax: 86-592-2388130

China - Xian

Tel: 86-29-8833-7252 Fax: 86-29-8833-7256

China - Zhuhai

Tel: 86-756-3210040 Fax: 86-756-3210049

ASIA/PACIFIC

India - Bangalore

Tel: 91-80-3090-4444 Fax: 91-80-3090-4080

India - New Delhi

Tel: 91-11-4160-8631 Fax: 91-11-4160-8632

India - Pune

Tel: 91-20-2566-1512 Fax: 91-20-2566-1513

Japan - Yokohama

Tel: 81-45-471- 6166 Fax: 81-45-471-6122

Korea - Daegu

Tel: 82-53-744-4301 Fax: 82-53-744-4302

Korea - Seoul

Tel: 82-2-554-7200 Fax: 82-2-558-5932 or 82-2-558-5934

Malaysia - Kuala Lumpur

Tel: 60-3-6201-9857 Fax: 60-3-6201-9859

Malaysia - Penang

Tel: 60-4-227-8870 Fax: 60-4-227-4068

Philippines - Manila

Tel: 63-2-634-9065 Fax: 63-2-634-9069

Singapore

Tel: 65-6334-8870 Fax: 65-6334-8850

Taiwan - Hsin Chu

Tel: 886-3-6578-300 Fax: 886-3-6578-370

Taiwan - Kaohsiung

Tel: 886-7-536-4818 Fax: 886-7-536-4803

Taiwan - Taipei

Tel: 886-2-2500-6610 Fax: 886-2-2508-0102

Thailand - Bangkok

Tel: 66-2-694-1351 Fax: 66-2-694-1350

EUROPE

Austria - Wels

Tel: 43-7242-2244-39 Fax: 43-7242-2244-393

Denmark - Copenhagen

Tel: 45-4450-2828 Fax: 45-4485-2829

France - Paris

Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79

Germany - Munich

Tel: 49-89-627-144-0 Fax: 49-89-627-144-44

Italy - Milan

Tel: 39-0331-742611 Fax: 39-0331-466781

Netherlands - Drunen

Tel: 31-416-690399 Fax: 31-416-690340

Spain - Madrid

Tel: 34-91-708-08-90 Fax: 34-91-708-08-91

UK - Wokingham

Tel: 44-118-921-5869 Fax: 44-118-921-5820

03/26/09

Microchip Technology dsPICDEM MCSM Development Board User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1. Introduction

1.1 OVERVIEW

FIGURE 1-1: dsPICDEM MCSM DEVELOPMENT BOARD

1.2 FEATURES

1.3 WHAT’S INCLUDED

1.4 REFERENCE DOCUMENTS AND WEBINARS

2.1 BOARD SETUP

Chapter 2. Getting Started

TABLE 2-1: MOTOR CONFIGURATION TABLE

2.2 PROGRAMMING AND DEBUGGING APPLICATION CODE

Chapter 3. Hardware

3.1 HARDWARE ARCHITECTURE

FIGURE 3-1: dsPICDEM MCSM DEVELOPMENT BOARD BLOCK DIAGRAM

3.1.1 Power Stage

3.1.1.1 MOSFET DRIVER

3.1.1.2 SWITCHING TOPOLOGY

FIGURE 3-2: MOSFET PWM ASSIGNMENT

3.1.2 Current Sensing

EQUATION 3-1: AMPLIFIER GAIN CALCULATION FORMULA

EQUATION 3-2: DC_REF SIGNAL CALCULATION FORMULA

3.1.3 Fault Protection

3.2 PIM CONFIGURATION

TABLE 3-3: dsPIC33FJ32MC204 AND dsPIC33FJ128MC804 CONFIGURATION DETAILS

3.3 BOARD CONNECTORS

FIGURE 3-3: dsPICDEM MCSM DEVELOPMENT BOARD USER INTERFACE COMPONENTS

3.3.1 Input Power Connector (J6, BP1-BP2)

3.3.2 DC Bus Power Supply Connector (J5 and J7)

3.3.3 USB Interface (J4)

3.3.4 ICSP Connector for dsPIC DSC (J1/J2)

3.3.5 ICSP for PIC18 (J3)

3.3.6 Motor Connector (J8)

TABLE 3-5: MOTOR CONNECTOR DETAILS

3.3.7 Test Points

TABLE 3-6: TEST POINTS

3.4 USER INTERFACE HARDWARE

TABLE 3-7: INDICATORS AND HUMAN INTERFACES

Chapter 4. Troubleshooting

4.1 COMMON PROBLEMS

FIGURE 4-1: DMCI CONNECTION FAILURE

Appendix A. Board Layout and Schematics

FIGURE A-1: dsPICDEM™ MCSM DEVELOPMENT BOARD LAYOUT (TOP)

FIGURE A-2: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 1 OF 3)

FIGURE A-3: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 2 OF 3)

FIGURE A-4: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 3 OF 3)

Appendix B. Electrical Specifications

TABLE B-1: DC INPUT RATING

TABLE B-2: DC OUTPUT RATING (J8)