Microchip Technology dsPICDEM MCSM User Manual

dsPICDEM™ MCSM

Development Board

User’s Guide

 2009-2019 Microchip Technology Inc. DS70000610C

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and may be superseded by updates.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 unless otherwise stated.

Trademarks

The Microchip name and logo, the Microchip logo, Adaptec,
AnyRate, AVR, AVR logo, AVR Freaks, BesTime, BitCloud, chipKIT,
chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex,
flexPWR, HELDO, IGLOO, JukeBlox, KeeLoq, Kleer, LANCheck,
LinkMD, maXStylus, maXTouch, MediaLB, megaAVR, Microsemi,
Microsemi logo, MOST, MOST logo, MPLAB, OptoLyzer,
PackeTime, PIC, picoPower, PICSTART, PIC32 logo, PolarFire,
Prochip Designer, QTouch, SAM-BA, SenGenuity, SpyNIC, SST,
SST Logo, SuperFlash, Symmetricom, SyncServer, Tachyon,
TempTrackr, TimeSource, tinyAVR, UNI/O, Vectron, and XMEGA
are registered trademarks of Microchip Technology Incorporated in
the U.S.A. and other countries.

APT, ClockWorks, The Embedded Control Solutions Company,
EtherSynch, FlashTec, Hyper Speed Control, HyperLight Load,
IntelliMOS, Libero, motorBench, mTouch, Powermite 3, Precision
Edge, ProASIC, ProASIC Plus, ProASIC Plus logo, Quiet-Wire,
SmartFusion, SyncWorld, Temux, TimeCesium, TimeHub,
TimePictra, TimeProvider, Vite, WinPath, and ZL are registered
trademarks of Microchip Technology Incorporated in the U.S.A.

Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any
Capacitor, AnyIn, AnyOut, BlueSky, BodyCom, CodeGuard,
CryptoAuthentication, CryptoAutomotive, CryptoCompanion,
CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average
Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial
Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker,
KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF,
MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach,
Omniscient Code Generation, PICDEM, PICDEM.net, PICkit,
PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple
Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI,
SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC,
USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, 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.
The Adaptec logo, Frequency on Demand, Silicon Storage
Technology, and Symmcom are registered trademarks of Microchip
Technology Inc. in other countries.
GestIC is a registered trademark of Microchip Technology Germany
II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in
other countries.
All other trademarks mentioned herein are property of their
respective companies.

© 2009-2019, Microchip Technology Incorporated, All Rights
Reserved.

For information regarding Microchip’s Quality Management Systems,
please visit www.microchip.com/quality.

ISBN: 978-1-5224-5025-2

DS70000610C-page 2  2009-2019 Microchip Technology Inc.

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Table of Contents

Preface ........................................................................................................................... 5

Introduction............................................................................................................ 5

Document Layout .................................................................................................. 5

Conventions Used in this Guide ............................................................................ 6

Recommended Reading........................................................................................ 7

The Microchip Website .......................................................................................... 8

Product Change Notification Service..................................................................... 8

Customer Support ................................................................................................. 8

Document Revision History ................................................................................... 8

Chapter 1. Introduction.................................................................................................. 9

1.1 Overview ........................................................................................................ 9

1.2 Features ....................................................................................................... 11

1.3 What’s Included ............................................................................................ 11

1.4 Reference Documents and Webinars .......................................................... 12

Chapter 2. Getting Started........................................................................................... 13

2.1 Board Setup ................................................................................................. 13

2.2 Programming and Debugging Application Code .......................................... 14

Chapter 3. Hardware .................................................................................................... 15

3.1 Hardware Architecture .................................................................................. 15

3.2 Board Connectors ........................................................................................ 21

3.3 User Interface Hardware .............................................................................. 24

Appendix A. Board Layout and Schematics.............................................................. 25

Appendix B. Electrical Specifications........................................................................ 31

Index ............................................................................................................................. 33

Worldwide Sales and Service .................................................................................... 34

 2009-2019 Microchip Technology Inc. DS70000610C-page 3

dsPICDEM™ MCSM Development Board User’s Guide

NOTES:

DS70000610C-page 4  2009-2019 Microchip Technology Inc.

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 website
(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
“DSXXXXXXXXA”, where “XXXXXXXX” 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 online help files.

INTRODUCTION

®

IDE online 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

• Recommended Reading

• The Microchip Website

• Customer Support

• 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.

• 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.

 2009-2019 Microchip Technology Inc. DS70000610C-page 5

dsPICDEM™ MCSM Development Board User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

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

Initial caps A window the Output window

A dialog the Settings dialog
A menu selection select Enable Programmer

Quotes A field name in a window or

dialog

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 var_name [,

A menu path File>Save

A tab Click the Power tab

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’

Choice of mutually exclusive
arguments; an OR selection

Represents code supplied by
user

“Save project before build”

4‘b0010, 2‘hF1

any valid filename

[options]

errorlevel {0|1}

var_name...]

void main (void)
{ ...
}

®

IDE User’s Guide

DS70000610C-page 6  2009-2019 Microchip Technology Inc.

RECOMMENDED READING

This user’s guide describes how to use the dsPICDEM™ MCSM Development Board.
The device-specific data sheets contain current information on programming the specific
microcontroller or digital signal controller devices. Other useful documents are listed
below. The following Microchip documents are available and recommended as
supplemental reference resources:

MPLAB® XC16 C Compiler User’s Guide (DS50002071)

This user’s guide describes how to use the 16-bit MPLAB® XC16 C Compiler. Please
visit www.microchip.com/compilers for more information.

MPLAB® X IDE User’s Guide (DS50002027)

This document describes how to setup the MPLAB® X IDE software and use it to create
projects and program devices.

MPLAB® XC16 Assembler, Linker and Utilities User’s Guide
(DS50002106)

This user’s guide describes how to use GNU language tools to write code for 16-bit
applications.

Preface

Readme Files

For the latest information on using other tools, read the tool-specific Readme files in
the Readme subdirectory of the MPLAB
contain updated information and known issues that may not be included in this user’s
guide.

®

IDE installation directory. The Readme files

dsPIC33/PIC24 Family Reference Manuals

A specific Family Reference Manual (FRM) is available for each module, which
explains the operation of the dsPIC
modules. The specifics of each device family are discussed in their respective
data sheet.

®

DSC MCU family architecture and peripheral

dsPIC33CK64MP105 Motor Control Plug-In Module (PIM) Information
Sheet for External Op Amp Configuration (DS50002848)

Information Sheet for External Op Amp Configuration. This information sheet provides
information specific to the dsPIC33CK64MP105 External Op Amp Configuration Motor
Control Plug-In Module (PIM).

To obtain any of these documents, visit the Microchip website at www.microchip.com.

 2009-2019 Microchip Technology Inc. DS70000610C-page 7

dsPICDEM™ MCSM Development Board User’s Guide

THE MICROCHIP WEBSITE

Microchip provides online support via our website at www.microchip.com. This website
is used as a means to make files and information easily available to customers. The
website contains the following information:

• Product Support – Data sheets and errata, application notes and sample

programs, design resources, user’s guides and hardware support documents,
latest software releases and archived software

• General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program
member listing

• Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listing of seminars and events, listings of Microchip sales offices,
distributors and factory representatives

PRODUCT CHANGE NOTIFICATION SERVICE

Microchip’s customer notification service helps keep customers current on Microchip
products. Subscribers will receive e-mail notification whenever there are changes,
updates, revisions or errata related to a specified product family or development tool of
interest.

To register, access the Microchip website at www.microchip.com, click on Product

Change Notification and follow the registration instructions.

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

• Development Systems Information Line

Customers should contact their distributor, representative or field application engineer
(FAE) for support. Local sales offices are also available to help customers. A listing of
sales offices and locations is included in the back of this document.

Technical support is available through the website at: http://support.microchip.com

DOCUMENT REVISION HISTORY

Revision A (September 2009)

This is the initial released revision of this document.

Revision B (August 2019)

In this revision of the document, changes are made to mention that the board is for
Microchip Digital Signal Controller (DSC) devices in general, not specifically for the
dsPIC33F family of devices as mentioned in the previous revision.

Minor text and formatting edits throughout document.

Revision C (September 2019)

Changed the devlopment board part number in Section 1.3 “What’s Included”.

DS70000610C-page 8  2009-2019 Microchip Technology Inc.

The dsPICDEM™ MCSM Development Board is targeted to control both unipolar and
bipolar stepper motors with no hardware configuration changes. This flexible and cost­effective board can be configured in different ways for use with Microchip’s specialized
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 eight, six or four-wire stepper motors in either bipolar or
unipolar configurations. Topics covered include:

• Overview

• Features

• What’s Included

• Reference Documents and Webinars

1.1 OVERVIEW

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Chapter 1. Introduction

Figure 1-1 shows a photograph of the dsPICDEM™ MCSM Development Board. A

®

dsPIC
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.

device uses the MOSFET driver to drive the two full-bridge inverters that power

potentiometer and Fault signals)

 2009-2019 Microchip Technology Inc. DS70000610C-page 9

dsPICDEM™ MCSM Development Board User’s Guide

FIGURE 1-1: dsPICDEM™ MCSM DEVELOPMENT BOARD

DS70000610C-page 10  2009-2019 Microchip Technology Inc.

1.2 FEATURES

The key features of this board include the following:

• Motor Control PIM Device (U2) Socket:

• Motor Control Interfaces:

• Input/Output Control Switches:

• Communication Ports:

• Built-In Power Supplies:

• Power Supply Connectors:

• Programming Connectors:

Introduction

- 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 k 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: 11W

- 3.3V power supply, maximum power available: 2W

- 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

The dsPICDEM MCSM Development Board with the part number DM330022-1
contains the following:

• dsPICDEM MCSM Development Board

• dsPIC33CK64MP105 External Op Amp Motor Control Plug-In-Module
(P/N: MA330050-1)

• USB to Mini-USB cable

• Screwdriver

 2009-2019 Microchip Technology Inc. DS70000610C-page 11

dsPICDEM™ MCSM Development Board User’s Guide

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 “Stepper 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
website.

DS70000610C-page 12  2009-2019 Microchip Technology Inc.

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
warning could lead to malfunction of the board and the motor, and could result in
physical harm.

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.

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Chapter 2. Getting Started

WARNING

®

DSC device mounted on the socket. Failure to comply with this

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). This can be
ordered from the Microchip web site as part number AC300024.

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

2. Make sure that the dsPIC33CK64MP105 PIM or an appropriate PIM is mounted
in the socket.

3. Connect the stepper motor (Leadshine part # 42HS03 or a substitute stepper
motor) 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 Bipolar Series Bipolar Parallel Bipolar Half-winding Unipolar

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 —

 2009-2019 Microchip Technology Inc. DS70000610C-page 13

dsPICDEM™ MCSM Development Board User’s Guide

4. Connect the 24V power supply to J6. A power supply can be ordered from the
Microchip website as part number AC002013, or substitute any power adapter
compatible with the Phihong model PSAC60W-240 (24 volts, 2.5 amps, with a
center positive barrel DC output connector).

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 dsPIC33CK64MP105 PIM or an appropriate PIM is mounted
in the socket.

3. Connect the stepper motor (Leadshine part #42HS03 or a substitute stepper
motor) to J8. Connect motor phases in a bipolar series connection as described
in Ta b le 2 -1 .

4. Connect the 24V power supply to J6. A power supply can be ordered from the
Microchip website as part number AC002013, or substitute any power adapter
compatible with the Phihong model PSAC60W-240 (24 volts, 2.5 amps, with a
center positive barrel DC output connector).

5. Connect PICkit™ 3 or PICkit 4 In-Circuit Debugger/Programmer, MPLAB
or ICD 4, or 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 stepper motor (AN1307) code for the dsPIC33CK64MP105 from
the Microchip web site for the MCSM at www.microchip.com/mcsm.

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

9. Click the Run icon when in Debug mode.

th

microstep step setting stops

®

ICD 3

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

Section 1.4 “Reference Documents and Webinars”.

DS70000610C-page 14  2009-2019 Microchip Technology Inc.

dsPICDEM™ MCSM DEVELOPMENT

Plug In Module

(PIM)

Drivers

IMOTOR1

FAULT

IMOTOR2

Safe Current

Level

Amplifier

Amplifier

Comparator

PWM1H1

DC_BUS

24 VDC

BP1
BP2

J5

J7

J6

3.3V

Regulator

Regulator

PWM1L1
PWM1H2
PWM1L2
PWM1H3
PWM1L3
PWM2H1
PWM2L1

M1

M2

M3

M4

J8

M

UART

to

USB

USB

J4

ICD2

J1/J2

3.3V

POT

S1

DC_BUS

M1

M2

M3

M4

15V

BOARD USER’S GUIDE

Chapter 3. Hardware

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

• Hardware Architecture

• 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.

FIGURE 3-1: dsPICDEM™ MCSM DEVELOPMENT BOARD BLOCK DIAGRAM

 2009-2019 Microchip Technology Inc. DS70000610C-page 15

dsPICDEM™ MCSM Development Board User’s Guide

3.1.1 PIM Header

The dsPICDEM™ MCSM Development Board has been designed to accommodate
detachable Plug-in Modules (PIMs). The board supports 100-pin PIMs. The PIM pinout
and function on the dsPICDEM™ MCSM Development Board are provided in Table 3-2.

TABLE 3-1: PIM PIN DESCRIPTION

PIM Pin Number Signal Name Pinout Description

1— N/A

2V

3 PWM1H3 PWM Output

4 PWM2L1 PWM Output

5 PWM2H1 PWM Output

6— N/A

7— N/A

8— N/A

9— N/A

10 — N/A

11 — N/ A

12 — N/A

13 {MCLR

14 — N/A

15 VSS Digital Supply Ground

16 V

17 — N/A

18 PWM2H1 PWM Output

19 PWM2L1 PWM Output

20 POT Potentiometer Signal

21 — N/A

22 POT Potentiometer Signal

23 DC_REF DC Bus Voltage (downscaled)

24 IMOTOR2 Phase 1 Current Signal

25 IMOTOR1 Phase 2 Current Signal

26 PGC Device Programming Clock Line

27 PGD Device Programming Data Line

28 — N/A

29 — N/A

30 AV

31 AV

32 — N/A

33 — N/A

34 — N/A

35 DC_REF DC Bus Voltage (downscaled)

36 V

37 V

38 — N/A

39 — N/A

40 — N/A

DD Digital Supply

} Device Master Clear

DD Digital Supply

DD Analog Supply

SS Analog Supply Ground

SS Digital Supply Ground

DD Digital Supply

DS70000610C-page 16  2009-2019 Microchip Technology Inc.

TABLE 3-1: PIM PIN DESCRIPTION (CONTINUED)

PIM Pin Number Signal Name Pinout Description

41 POT Potentiometer Signal

42 — N/A

43 — N/A

44 — N/A

45 V

46 VDD Digital Supply

47 — N/A

48 — N/A

49 USB_RX UART Receive

50 USB_TX UART Transmit

51 USB_TX UART Transmit

52 USB_RX UART Receive

53 — N/A

54 USB_V

55 USB_3.3V N/A

56 USB_D- USB Data -

57 USB_D+ USB Data +

58 — N/A

59 — N/A

60 — N/A

61 — N/A

62 V

63 OSCI Crystal Oscillator In

64 OSCO Crystal Oscillator Out

65 V

66 — N/A

67 — N/A

68 FAULT_1 Fault Signal

69 — N/A

70 BTN_1 Push Button S1 Input

71 — N/A

72 — N/A

73 — N/A

74 — N/A

75 V

76 USB_TX UART Transmit

77 PWM2H1 PWM Output

78 PWM2L1 PWM Output

79 — N/A

80 — N/A

81 — N/A

82 — N/A

83 USB_TX UART Transmit

84 USB_RX UART Receive

85 — N/A

SS Digital Supply Ground

BUS USB VBUS

DD Digital Supply

SS Digital Supply Ground

SS Digital Supply Ground

Hardware

 2009-2019 Microchip Technology Inc. DS70000610C-page 17

dsPICDEM™ MCSM Development Board User’s Guide

TABLE 3-1: PIM PIN DESCRIPTION (CONTINUED)

PIM Pin Number Signal Name Pinout Description

86 VDD Digital Supply

87 — N/A

88 — N/A

89 — N/A

90 — N/A

91 — N/A

92 — N/A

93 PWM1L1 PWM Output

94 PWM1H1 PWM Output

95 — N/A

96 — N/A

97 — N/A

98 PWM1L2 PWM Output

99 PWM1H2 PWM Output

100 PWM1L3 PWM Output

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

• For FAULT_1: Remove R87 and solder R86

• For PWM2L1: Remove R86 and solder R87 (default)

Note 1: The “dsPIC33CK64MP105 Motor Control Plug-In Module (PIM) Informa-

tion Sheet for External Op Amp Configuration” is available from either the

PIM website: https://new.microchipdirect.com/product/search/all/

MA330050-1 or else from the Microchip website (www.microchip.com/
DS50002848).

2: Refer to www.microchip.com/mcsm for compatible PIMs released in the

future and their PIM information sheets.

3.1.2 Power Stage

The dsPICDEM™ MCSM Development Board features two full-bridge inverters to
accommodate a bipolar stepper motor. The full-bridge inverters can be powered from
a supply of up to 80V.

3.1.2.1 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.

DS70000610C-page 18  2009-2019 Microchip Technology Inc.

3.1.2.2 SWITCHING TOPOLOGY

T1 T2 T1 T2

PWM1H1PWM1L1

PWM1H2PWM1L2

PWM1H1

PWM1L1

PWM1H2

PWM1L2

T1

PWM1H1PWM1L1

PWM1H2PWM1L2

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

 2009-2019 Microchip Technology Inc. DS70000610C-page 19

dsPICDEM™ MCSM Development Board User’s Guide

Gain R

SHUNT

R

27

R28R29+

-----------------------=

Note: The default gain value is 0.75 V/A, allowing a resolution of 4.3 mA/count

with a 10-bit ADC.

DC_REF

1

28

----- - DC_BUS=

3.1.3 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

28

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

and R45.

39

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

27

27

EQUATION 3-2: DC_REF SIGNAL CALCULATION FORMULA

3.1.4 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.

WARNING

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

DS70000610C-page 20  2009-2019 Microchip Technology Inc.

Hardware

J8

D3-D10

S1

POT1

J2

J1

J4

J3

BP2

BP1

J7

J5

J6

RESET

U2

3.2 BOARD CONNECTORS

Figure 3-3 shows the various user interface components available on the dsPICDEM™

MCSM Development Board. Ta b le 3- 2 describes the hardware connection between the
PICkit™ 3, PICkit 4, MPLAB
Emulator, the power supply, and the dsPICDEM™ MCSM Development Board
connectors.

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

®

ICD 3 or ICD 4, or MPLAB REAL ICE™ In-Circuit

TABLE 3-2: dsPICDEM™ MCSM DEVELOPMENT BOARD USER INTERFACE

COMPONENTS

Designator Description

 2009-2019 Microchip Technology Inc. DS70000610C-page 21

BP1-BP2 Auxiliary Power Supply Connector

D3-D10 PWM LEDs

S1 Push Button Switch 1

RESET Device Reset Switch

POT1 Potentiometer

U2 Plug-In Module (PIM) Adapter

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

dsPICDEM™ MCSM Development Board User’s Guide

3.2.1 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 the
necessary 15V and 3.3V 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.

3.2.2 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 0V-80V DC power supply can be connected between BP1-BP2.

3.2.3 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 dsPIC devices on
different ports depending on the specific dsPIC device used. For the specific devices
that do not have remappable peripherals, additional UART RX/TX pins 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 0 resistors, and disable the PIC18 USB communication by removing R84 and R85.

3.2.4 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, ICD 4 or MPLAB REAL ICE In-Circuit Debugger
to the dsPIC device for programming and debugging purposes. The PICkit™ 3 or
PICkit 4 In-Circuit Debugger/Programmer can be connected to the board using a 6-pin
ICSP connector (J2).

3.2.5 ICSP for PIC18 (J3)

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

3.2.6 Motor Connector (J8)

The motor connector has eight terminals. Ta bl e 3 - 3 lists the functionality of each terminal.

TABLE 3-3: MOTOR CONNECTOR DETAILS

Terminal Number Designator Description

1 N/C 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 N/C Not Connected

DS70000610C-page 22  2009-2019 Microchip Technology Inc.

Hardware

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 N/C 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 Ta b le 3 - 3
for details on how to connect the motor wires to J8 for all possible configurations.

3.2.7 Test Points

Ta bl e 3 - 4 lists the test points that can be used to check various signals.

TABLE 3-4: TEST POINTS

Test Points Description

POT POT Signal

15V 15V MOSFET Driver Supply

3.3V 3.3V Digital Supply

AVDD Analog Supply (3.3V)

AVSS Analog Ground

IMOTOR1 Motor Current Phase 1

IMOTOR2 Motor Current Phase 2

REF Zero Current Reference Voltage

V

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

 2009-2019 Microchip Technology Inc. DS70000610C-page 23

dsPICDEM™ MCSM Development Board User’s Guide

3.3 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 3-5: 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 k potentiometer; it is connected to the 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 +3.3V regulator.

D15 Fault LED; indicates an overcurrent.

DS70000610C-page 24  2009-2019 Microchip Technology Inc.

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Appendix A. Board Layout and Schematics

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

 2009-2019 Microchip Technology Inc. DS70000610C-page 25

dsPICDEM™ MCSM Development Board User’s Guide

GND

+3.3V

GND

DNPR8

+3.3V

GND

GND

GND

+3.3V

AGND

AV

DD

+3.3V

GND

DNPR7

DNPR9

DNPR10

+3.3V

0.1 μF

C8

2

1

3

4

S1

0.1 μF

C11

AGND

POT

0.1 μF

C9

0.1 μF

C5

2

1

3

4

RESET

470R

R6

0R

R87

DNP

R86

+3.3V

CCW

CW

1

3

2

10K

POT1

GND

4.7K

R5

+3.3V

4.7K

R4

ICSP for PIM (PICkit™ 3/4)

+3.3V

dsPIC

®

DSC

+3.3V

GND

AV

DD

100R

R11

4.7K

R2

74

73

716870

676465

62

6155595658

53

52

32586

9

111412

15

172018

21

23

24

75

72

69

66

63

60

57

54

51

1

4

7

10

13

16

19

22

25

77

78

48

49

83

80

81

84

43

46

42

45

89

86

87

90

37

40

39

36

95

92

93

96

31

34

33

30

98

99

28

27

7650

7947

8244

85

41

8838

9135

9432

97

29

10026

U2

100-Pin PIM Header

BTN_1

BTN_1

D-

D+

DC_REF

DC_REF

FAULT_1

FAULT_1

IMOTOR1

IMOTOR2

MCLR

MCLR

OSCI

OSCO

PGC

PGD

POT

POT

POT

POT

PWM1H1

PWM1H2

PWM1H3

PWM1L1

PWM1L2

PWM1L3

PWM2H1

PWM2H1

PWM2H1

PWM2L1

PWM2L1

PWM2L1

USB_RX

USB_RX

USB_RX

USB_TX

USB_TX

USB_TXUSB_TX

VBUS

0.1 μF

C1

GND

+3.3V

ICSP™ for PIM (RJ11)

6

5

4

3

2

1

J1

25361

4

J2

MCLR

PGC

PGD

FIGURE A-2: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 1 OF 4)

DS70000610C-page 26  2009-2019 Microchip Technology Inc.

Board Layout and Schematics

GND

GND

33 pF

C16

AV

DD

10 μFC14

AGND

GND

0.1 μFC13

33 pF

C15

+3.3V

GND

0.1 μF

C17

8 MHz

Y2

BTN_1

DC_REF

FAULT_1

IMOTOR1

IMOTOR2

MCLR

OSCI

OSCO

PGC

PGD

POT

PWM1H1

PWM1H2

PWM1H3

PWM1L1

PWM1L2

PWM1L3

PWM2H1

PWM2L1

USB_RX

USB_TX

VDDCORE

GND GND GNDGND GND GND

1K

R13

1K

R15

D5

1K

R14

D4

1K

R17

D7

1K

R19

1K

R20

D9 D10

GND GND

PWM1L3

PWM1H3

PWM2L1

PWM2H1

PWM1L2

PWM1L1

PWM1H1

PWM1H2

1K

R18

D3 D8

1K

R16

D6

PWM1H1

PWM1H2

PWM1H3

PWM1L1

PWM1L2

PWM1L3

PWM2H1

PWM2L1

GND

22 pF

C3

GND

+3.3V

0R

R84

0.1 μFC2

470R

R3

10K

R1

GND

0R

R85

GND

470 nF

C6

22 pF

C4

Orange

D1

+3.3V

GND

1.0 μF

C7

USB

+3.3V

20 MHz

Y1

D-

D+

MCLR_18F

PGC_18F

PGD_18F

USB_RX

USB_TX

0.1 μF

C10

+3.3V

5

3

261

4

J3

ICSP™ for USB

GND

MCLR_18F

PGC_18F

PGD_18F

GND

GND

GND

470R

R12

USB Communication

GND

1.0 μF

C12

D2

5

V

BUS

1

4

D-2D+

3

Shield

6

J4

D-

D+

VBUS

PWM1H1/RB14

25

RB0/AN2/PGD1

4

AVDD

28

PWM1L2/RB13

24

RB1/AN3/PGC1

5

AVss

27

RA3/OSCO

10

PWM1H3/RB10

21

PWM1L3/RB11

22

PWM2L1/RB9

18

Vss

19

INT0/RB7

16

RB6

15

PWM1L1/RB15

26

PWM1H2/RB12

23

VDDCORE

20

RA2/OSCI

9

PWM2H1/RB8

17

MCLR1RA0/AN0

2

RB3/AN57Vss

8

RB4

11

RB514VDD

13

RA1/AN1

3

RB2/AN4

6

RA4

12

U3

dsPIC33FJ12MC202-I_SO

RA2/AN2

1

AN9/RB3

21

RX/DT/RC7

15

OSC2/CLKO

7

INT0/RB0

18

RA5/AN4

4

INT2/RB2

20

RA3/AN3

2

VDD

17

VSS

5

INT1/RB1

19

RA4/RCV3OSC1/CLKI

6

Vss

16

PGM/RB5

23

TX/CK/RC6

14

D+//VP/RC5

13

RC1/UOE

9

PGC/RB6

24

RA1/AN1

28

MCLR

26

RC2

10

AN11/RB4

22

D-/VM/RC4

12

RCO/T1CKI

8

PGD/RB7

25

VUSB

11

RA0/AN0

27

U1

PIC18F2450

FIGURE A-3: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 2 OF 4)

 2009-2019 Microchip Technology Inc. DS70000610C-page 27

dsPICDEM™ MCSM Development Board User’s Guide

27 pF

C31

10K

R33

27 pF

C27

AGND

IMOTOR2

AGND

IMOTOR1

GND

0.1 μF

C28

GND

1K

R38

GND

100 pF

C29

100 pF

C32

+3.3V

D15

0.1 μF

C50

10K

R40

10K

R41

10K

R43

10K

R44

Note:

0.75 V/A

0A = 1.65V

10K

R28

10K

R29

10K

R34

1K

R42

1K

R31

MCP6024

D

12

13

14

U4D

0.1 μF

C30

AGND

10KR32

10KR37

10K

R36

A

3

2

1

MCP6024

U4A

150K

R27

150K

R35

150K

R39

150K

R45

AVDD

7

2

1

SN74LVC2G02D

U5A

10K

R30

MCP6024

B

7

6

5

U4B

10K

R88

MCP6024

C

10

9

8

U4C

SN74LVC2G02D

3

6

5

U5B

FAULT_1

IMOTOR1

IMOTOR1

IMOTOR2

IMOTOR2

IREF

IREF

SHUNT_1

SHUNT_1_GND

SHUNT_2

SHUNT_2_GND

VREF

VREF

AGND

IREF

AGND

A

3

2

1

MCP6024

U6A

AGND

22K

R51

2.7K

R48

MCP6024

B

7

6

5

U6B

AGND

0.1 μF

C39

AGND

AGND

AVDD

0.1 μF

C35

AVDD

DC_REF

AGND

AGND

AVDD

0.1 μF

C37

AGND

AGND

27K

R47

DC+

MCP6024

C

10

9

8

U6C

0.1 μF

C36

10K

R46

10K

R50

VREF

0.1 μF

C34

1K

R49

0.1 μF

C33

0.1 μF

C38

DC_REF

IREF

VREF

Sensing

GND

3.3V

AGND

0.1 μF

C26

47 μF

C18

0.1 μF

C23

GND

D13

SS1P3L

0.01 μF

C19

GND GND

GND

1R

R21

100 μF

C20

AVDD

AVss

GND

GND GND

15V

0.1 μF

C49

100 μF

C48

0R

R24

AVDD

3.3V Supply

GND

231

J6

KLDX-0202-A

+15V SUPPLY

+15V

100K

R22

10K

R26

AGND

GND

D14

D11

BAT17

10 μH

L1

0.1 μF

C25

GND

GND

100 μF

C22

BOOST

1

SW

6

VIN5EN

4

GND

2

FB

3

VR2

LM2736Y

16.5K

R23

+3.3V

1K

R25

Power

GND

2

VIN

1

VOUT

3

MC7815CD2T/R4

VR1

24V

AGND

D12

1 2

J7

0.1 μF

C24

DC+

1 2

J5

VIN (+)

BP1

J5 connected by

default from Factory

GND (–)

BP2

470 μF

C21

24V

AGND

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

DS70000610C-page 28  2009-2019 Microchip Technology Inc.

Board Layout and Schematics

0.1 μF

C42

10K

R58

+15V

BAT41

D16

33R

R62

AGND

0.1R/2W

R66

33R

R65

BAT41

D17

+15V

10K R59

+15V

33R

R54

DC+

0R

R67

DC+

33R

R57

+15V

GND

10K R60

50R

R52

3.3 μF/50V

C40

10K R61

50R

R53

3.3 μF/50V

C41

0.1 μF

C43

GND

10K

R55

10K

R63

1 7

2

8

FDS3992

Q1A

FDS3992

3 6

4

5

Q1B

10K

R56

10K

R64

HO13VS12NC10LO

9

CSC

6

FO

5

HIN

3

SD

2

VB14NC11VSL

8

LIN

1

VDD

4

Vss

7

U8

FAN7384

HO

13

VS

12

NC

10

LO

9

CSC6FO

5

HIN3SD

2

VB

14

NC

11

VSL

8

LIN1VDD

4

Vss

7

U7

FAN7384

1 7

2

8

FDS3992

Q2A

FDS3992

3 6

4

5

Q2B

M1 M2PWM1H1

PWM1H2PWM1L1

PWM1L2

SHUNT_1

SHUNT_1_GND

GND

0.1 μF

C46

+15V

+15V

BAT41

D18

50R

R68

33R

R78

AGND

0.1R/2W

R82

33R

R81

BAT41

D19

+15V

33R

R70

DC+

0R

R83

DC+

33R

R73

+15V

10K

R75

GND

10K R76

FDS3992

3

6

4

5

Q3B

3.3 μF/50V

C44

10KR77

50R

R69

3.3 μF/50V

C45

0.1 μF

C47

10K R74

10K

R71

10K

R79

1

7

2

8

FDS3992

Q3A

10K

R72

10K

R80

HO13VS12NC10LO

9

CSC

6

FO

5

HIN

3

SD

2

VB14NC11VSL

8

LIN

1

VDD

4

Vss

7

U10

FAN7384

FDS3992

3

6

4

5

Q4B

HO

13

VS

12

NC

10

LO

9

CSC6FO

5

HIN3SD

2

VB

14

NC

11

VSL

8

LIN1VDD

4

Vss

7

U9

FAN7384

1 7

2

8

FDS3992

Q4A

M3 M4PWM1H3

PWM1L3 PWM2H1

PWM2L1

SHUNT_2

SHUNT_2_GND

Note:

PWM1H2/L2 and PWM2H1/L1 are swapped

to accommodatethe switching topology.

SeeUser’s Guide for more detail.

DC+

1

2

3

4

5

8

7

6

J8

M1

M2

M3

M4

FIGURE A-5: dsPICDEM™ MCSM DEVELOPMENT BOARD SCHEMATIC (SHEET 4 OF 4)

 2009-2019 Microchip Technology Inc. DS70000610C-page 29

dsPICDEM™ MCSM Development Board User’s Guide

NOTES:

DS70000610C-page 30  2009-2019 Microchip Technology Inc.

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 a 4.6 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)

40

24
80

(2,3)

V

DC

W

 2009-2019 Microchip Technology Inc. DS70000610C-page 31

dsPICDEM™ MCSM Development Board User’s Guide

NOTES:

DS70000610C-page 32  2009-2019 Microchip Technology Inc.

dsPICDEM™ MCSM DEVELOPMENT

BOARD USER’S GUIDE

Index

A

Amplifier Gain Calculation Formula.......................... 20

B

Block Diagram.......................................................... 10

Board Layout............................................................ 25

C

Connectors and Jumpers......................................... 21

Current Sensing....................................................... 20

Customer Support...................................................... 8

D

DC Bus Power Supply Connector (J5 and J7)......... 22

DC_REF Signal Calculation Formula....................... 20

Documentation

Conventions........................................................ 6

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

F

Fault LED (D15) ....................................................... 20

Fault Protection........................................................ 20

I

ICSP Connector for dsPIC DSC (J1/J2)................... 22

ICSP for PIC18 (J3) ................................................. 22

Indicators and Human Interfaces ............................. 24

Input Power Connector (J6, BP1-BP2) .................... 22

Internet Address......................................................... 8

K

Key Features............................................................ 11

Kit Contents ............................................................. 11

M

Microchip Internet Website......................................... 8

MOSFET PWM Assignment..................................... 19

Motor Configuration.................................................. 13

Motor Connector (J8) ............................................... 22

P

Plug-In Module (PIM) ................................................. 9

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

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

Switching Topology........................................... 19

R

Reading, Recommended ........................................... 7

S

Schematics

Sheet 1 of 4....................................................... 26

Sheet 2 of 4....................................................... 27

Sheet 3 of 4....................................................... 28

Sheet 4 of 4....................................................... 29

Signal Test Points .................................................... 23

Stepper Motors

Bipolar................................................................. 9

Unipolar............................................................... 9

U

USB Interface (J4).................................................... 22

User Interface Hardware.......................................... 24

W

WWW Address........................................................... 8

 2009-2019 Microchip Technology Inc. DS70000610C-page 33

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DS70000610C-page 34  2009-2019 Microchip Technology Inc.

05/14/19