Microchip Technology PIC32 User’s Guide

Getting Started with PIC32

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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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, Accuron, dsPIC, K

EELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,

PICSTART, PRO MATE, rfPIC and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

FilterLab, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL, SmartSensor 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, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM, PICDEM.net, PICtail, PIC

logo, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, 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

GETTING STARTED WITH PIC32

Table of Contents

Preface ........................................................................................................................... 1

Chapter 1. PIC32 Features

1.1 Introduction ..................................................................................................... 7

1.2 Highlights ........................................................................................................ 7

Chapter 2. PIC32 Product Family

2.1 Introduction ..................................................................................................... 9

Chapter 3. PIC32 Architecture

3.1 Introduction ................................................................................................... 11

Chapter 4. PIC32 Tools

4.1 Introduction ................................................................................................... 15

4.2 Highlights ...................................................................................................... 15

4.3 MPLAB

4.4 MPLAB

4.5 Peripheral Libraries ...................................................................................... 17

4.6 Software Solutions ....................................................................................... 19

4.7 Demonstration, Development and Evaluation Boards .................................. 20

4.8 Technical Documentation ............................................................................. 20

IDE ................................................................................................ 15

C32 C Compiler ............................................................................. 16

Chapter 5. Step-by-Step Procedures to Setup, Build, and Run a Demo Project

5.1 Introduction ................................................................................................... 21

5.2 Highlights ...................................................................................................... 21

5.3 MPLAB IDE Setup ........................................................................................ 21

5.4 Step-by-step Guide Overview ...................................................................... 22

5.5 Selecting the Device ..................................................................................... 23

5.6 Creating the Project ...................................................................................... 24

5.7 Setting Up Language Tools .......................................................................... 25

5.8 Naming the Project ....................................................................................... 26

5.9 Adding Files to the Project ........................................................................... 27

5.10 Attaching the Debugger .............................................................................. 31

5.11 Building the Project .................................................................................... 32

5.12 Testing the Code ........................................................................................ 32

Chapter 6. Technical Support Resources

6.1 Introduction ................................................................................................... 37

Index ............................................................................................................................. 39

Worldwide Sales and Service .................................................................................... 40

Getting Started with PIC32

NOTES:

GETTING STARTED WITH PIC32

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 online help files.

INTRODUCTION

This document is intended to enable new PIC32 users to get a basic hardware and software understanding of the PIC32 architecture and quickly get started with software development for PIC32 products.

This document is primarily written for anyone wanting to get overview knowledge of PIC32 microcontrollers and associated technical collateral provided by Microchip and its third party tools partners. A basic understanding of embedded systems development and 'C' programming knowledge is required, if you are planning to follow step-by-step instructions provided later in this document.

This chapter contains general information that will be useful to know before using the PIC32. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• Recommended Reading

• The Microchip Web Site

• Development Systems Customer Change Notification Service

• Customer Support

• Document Revision History

IDE online help.

Getting Started with PIC32

DOCUMENT LAYOUT

This document is divided into 6 sections. Sections 1 through 4 provide an overview of PIC32 products. Section 5 provides an overview of PIC32 development tools. Section 6 describes the procedure to setup a development environment and debug a sample application. The manual layout is as follows:

• Chapter 1. PIC32 Features

• Chapter 2. PIC32 Product Family

• Chapter 3. PIC32 Architecture

• Chapter 4. PIC32 Tools

• Chapter 5. Step-by-Step Procedures to Setup, Build, and Run a Demo Project

• Chapter 6. Technical Support Resources

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

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 brackets and pipe character: { | }

Ellipses... Replaces repeated text var_name [,

Preface

IDE User’s Guide

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...]

void main (void)

{ ...

}

Getting Started with PIC32

1.1 INTRODUCTION

The PIC32 is a 32-bit family of general purpose microcontrollers from Microchip Technology. It offers 80+ DMIPS performance with a wide variety of on-chip peripherals. It employs industry leading M4K MIPS32 core from MIPS Technologies, Inc. All members in the PIC32 family use programming interface similar to other Microchip PIC patible with the PIC24FJ128GA family of 16-bit microcontrollers.

1.2 HIGHLIGHTS

The PIC32 family offers a number of features to enable a wide variety of applications. The following subsections list all the key features grouped in major categories.

Performance:

• Up to 80 MHz, MIPS M4K 32-bit core with 5 stage pipeline

• High-performance hardware multiply/divide unit – 1 multiply per clock

• Programmable user and kernel memory partition for enhanced application stability

• Multiple register sets for reduced interrupt latency

• Hardware assisted single-cycle register bits manipulations

• 128-bit wide Flash memory to shorten individual instruction fetch time

• 256 bytes of high-speed cache memory with instruction and ROM data prefetch buffer

• Available DMA controller with integrated CRC calculation and pattern-based transfer termination

• Includes USB On-The-Go controller for USB device, host, or dual-role applications

• USB controller has own dedicated DMA interface

GETTING STARTED WITH PIC32

Chapter 1. PIC32 Features

microcontrollers. In addition, PIC32 microcontrollers are pin-to-pin com-

Power Management:

• 2.3 to 3.6V operation

• Full-speed operation over entire voltage range

• Various low-power modes including RUN, IDLE and SLEEP

• I/O transfers via DMA in IDLE mode

• Programmable peripheral clock

• Individual peripheral ON/OFF control and operation during IDLE mode

• Multiple clock sources

Scalability:

• Industry known MIPS32-compatible M4K CPU core with 5 stage pipeline

• Large family of devices with Flash memory options from 32 KB to 512 KB

• Pin compatible with 64/100 pin PIC24FJXXXGA family of 16-bit microcontrollers

Getting Started with PIC32

Ease of Use:

•PIC® microcontroller “look and feel” peripherals

• Standard MPLAB REAL ICE™, and MPLAB ICD 2.

• Software Peripheral Libraries compatible with those for Microchip 16-bit microcontrollers

• Microchip developed middleware modules such as TCP/IP and 16-bit file system

tool-suite – MPLAB IDE, MPLAB C32 C Compiler, MPLAB

Chapter 2. PIC32 Product Family

2.1 INTRODUCTION

The PIC32 family includes scalable devices ranging from 32KB to 512KB of Flash memory. Also a rich set of peripherals – Five timers, 16 channels of 10-bit A/D Converters and communication interfaces: SPI, I

Please consult the “PIC32MX Family Data Sheet” (DS61143) for a complete list of family variants, core and peripheral characteristics.

FIGURE 2-1: PIC32 MCU MODULES

GETTING STARTED WITH PIC32

C™ and UART.

VREG

RTCC

USB

OTG

SPI

(2)

44--W

JTAG

Debug

I2C

(2)

Boundary

Scan

Vectored

Interrupts

CPU

Bus

Matrix

EUART

(2)

22--W

(5)

WDT,

BOR.

CVRef

DMAC

CRC

Ext

OCOMP

/PWM

(5)

55--W

Trace

TMR

(5)

RAM

128--

128

Flash

bit

MCHP

Debug

INTs

(5)

Change

Notice

(21)

/GPIO

(85)

ADC

(16ch,

10b)

Enh..

Enh

PMP

Analog

Comp.

(2)

Getting Started with PIC32

NOTES:

Chapter 3. PIC32 Architecture

3.1 INTRODUCTION

The PIC32 family of MCUs combines the MIPS M4K core together with powerful peripherals and embedded Flash and RAM memory to address a wide range of applications.

FIGURE 3-1: PIC32 BLOCK DIAGRAM

PORTA

PORTB

PORTC

PORTD

PORTE

GETTING STARTED WITH PIC32

ENVREG

USBCLK

SYSCLK

PBCLK

DMAC

DDCORE/VCAP

Volt age

Regulator

Precision Band Gap Reference

(1)

Peripheral Bridge

ICD

Power-up

(1)

Oscillator

Start-up Timer

Power-on

Watchdog

Brown-out

Reset

Timer

Reset

Timer

(2)

Peripheral Bus Clocked by PBCLK

MCLR

CN1-22

PWM

OC 1,5

IC 1,5

SPI 1,2

I2C 1,2

PMP

(1)

OSC2/CLKO OSC1/CLKI

(1)(4)

(1)

JTAG

BSCAN

EJTAG INT

MIPS M4K CPU Core

IS DS

Pre-Fetch

Module

OSC/SOSC

Oscilla tors

FRC/LPRC

Oscillators

PLL

DIVIDERS

PLL-USB

Timing

Generati on

Peripheral Bus Clocked by SYSCLK

Priority

Interrupt

Controlle r

Bus Matrix

(1)

Data RAM

USB

(1)

PORTF

PORTG

(1)

Time r1

128

128-bit wide

Program Flash

Peripheral Bus Clocked by PBCLK

Time r2

Time r3

Memory

UART 1,2

Flash

Controller

Time r5Time r4

RTCC

10-bit ADC

Comparators

Peripheral Bus

Note 1: Not all pins or features are implemented on all device pinout configurations.

See Table 1-4 for I/O port pin descriptions.

2: Some features are not available on certain device variants.

3: BOR functionality is provided when the on-board voltage regulator is enabled.

4: PORTA is not present on 64 pin devices

Getting Started with PIC32

Processor core:

• MIPS M4K with 5-stage pipeline

• MIPS32-compatible Release 2 Instruction Set

• MIPS16e™ Code Compression to improve code density by up to 40%

• GPR shadow registers to minimize latency for interrupt handlers

• Bit field manipulation instructions

• High-performance Multiply/Divide Unit:

- Maximum issue rate of one 32x16 multiply per clock

- Maximum issue rate of one 32x32 multiply every other clock

• Static implementation: minimum operating frequency 0 MHz

• 2.3 to 3.6V operation with full speed over entire range

• Low-power modes including RUN, IDLE, and SLEEP

Memory:

• Unified 4GB virtual memory space

• Fixed Memory Mapping Translation (FMT) mechanism

• Flexible partitioning into kernel and user accessible memory segments for increased application stability

Pre Fetch Cache:

• 16 lines, each 128-bit wide, instruction Prefetch buffer

• Ability to load and lock lines – useful to create SW breakpoints in Flash and minimize interrupt latency

Interrupt Controller:

• Fully programmable interrupt controller with Single or Multi vector mode, supporting up to 95 IRQs.

• Multiple priorities and subpriorities for each vector

• Highest priority interrupt has dedicated register set for reduced interrupt latency

DMA Controller:

• Up to 4 independent channels

• Memory-to-Memory, Memory-to-Peripheral, and Peripheral-to-Memory transfers

• Programmable trigger from any IRQ

• Chainable channels, stop on match detection, Auto-Enable mode

• Data transfers can occur while the core is in IDLE mode

• Integrated programmable CRC engine: calculates on the fly while the data is transferred.

Enhanced Parallel Master Port:

• 8- and 16-bit data interface

• Up to 16-bit address lines, expandable using GPIO lines

• 2 Chip Select lines

Communication channels:

PIC32 Architecture

• USB 2.0 compliant (FS. 12 Mbps), OTG, Host and Device-only capable

• 2 enhanced UART channels with hardware IrDA

• 2 Master/Slave/Frame mode SPI channels

• 2 Master/Slave I

C channels, 10/7 bits mode addressing, broadcast capable

Analog-to-Digital Converters:

• Up to 16 Channels, each 10-bit resolution ADCs

• Up to 500+ kilo-samples per second (ksps) conversion speed

• Software selectable Internal or External voltage reference

• Automatic Channel Scan mode

• Selectable conversion trigger source

• 16 word conversion result buffer

• Selectable Buffer Fill modes

• Eight result alignment options

• Operation during CPU Sleep mode

Timers:

• 5 16-bit timer/counter with the ability to form up to (2) 32-bit timer/counters

• Software-selectable internal or external clock source

• Asynchronous timer/counter with built-in oscillator

• Programmable interrupt generation and priority

• Gated external pulse counter

• Software-selectable prescalers.

• Operational during CPU Sleep mode

Core Timer:

• 32 bit timer in CPU for implementing a timer interrupt function.

RTCC (Real-Time Clock and Calendar):

• Time with hours, minutes and seconds

• Calendar with weekday, date, month and year

• Leap year detection

• Highly configurable alarm

• Calibration of up to 260 ppm of crystal error

Debug and Programming:

• 6 instructions and 2 data breakpoints

• 2 complex breakpoint logic blocks with qualified/primed breakpoint triggers, Pass counters, and stopwatch timers.

• 4-wire EJTAG and 2-wire Microchip interface

• 2-wire Microchip Interface:

- 6 real-time read/write capture logic blocks

- Read/write access to all data RAM and SFRs without stopping CPU

• Instruction Trace Port:

- 5-Wire, nonintrusive trace port

- Triggered by complex breakpoint logic block

Getting Started with PIC32

GPIO:

• 5V tolerant inputs

• Individual output pin open-drain enable/disable

• Individual input pin weak pull-up enable/disable

• Monitor selective inputs and generate interrupt on mismatch condition

Note: Input pin weak pull-up and interrupt on mismatch features are available

only on select I/O pins.

4.1 INTRODUCTION

The PIC32 microcontrollers are supported by the MPLAB Integrated Development Environment and its full range of hardware and software tools.

4.2 HIGHLIGHTS

Items discussed in this chapter are:

• MPLAB IDE

• MPLAB C32 C Compiler

• Peripheral Libraries

• Software Solutions

• Demonstration, Development and Evaluation Boards

• Technical Documentation

4.3 MPLAB IDE

The Microchip MPLAB IDE is a FREE development toolsuite for Microsoft Windows® that contains:

• A single graphical interface to all debugging tools:

- Simulator

- Programmers

-Emulators

- In-Circuit Debuggers

• A full-featured editor with color-coded context

• A project manager

• Customizable data windows with in-place editable contents

• High-level source code debugging

• Extensive on-line help

The MPLAB IDE provides integrated debugging and programming facilities using any of the following probes connected to the target processor/Development Board:

• MPLAB ICD 2 In-Circuit Debugger: a low-cost, run-time development tool.

• MPLAB REAL ICE In-Circuit Emulator: a high speed in-circuit emulator with hardware and software trace capabilities.

• FS2 JTAG probe: Developed by First Silicon Solutions, this probe uses 4-wire EJTAG interface to debug and program the PIC32 microcontrollers.

• MPLAB PM3 Device Programmer: a Microchip universal device programmer suitable for development and manufacturing purposes.

• MPLAB SIM32 Device Simulator: Accurately simulates many PIC32 peripherals and the CPU in selectable cycle and clock-accurate modes

GETTING STARTED WITH PIC32

Chapter 4. PIC32 Tools

Getting Started with PIC32

4.4 MPLAB C32 C COMPILER

The MPLAB C32 C Compiler package allows you to build your applications and contains the following key software components (see Figure 4-1).

• PIC32-gcc Compiler: complete ANSI C compiler with powerful integration capabil-

ities and efficient code optimization. The compiler provides symbol information that is used by the MPLAB IDE debugger.

• PIC32-gpp Macro Processor: used automatically by the compiler to transform the

program before compilation.

• PIC32-as Assembler: full-featured macro assembler.

• PIC32-ld Object Linker: links relocatable objects created by the

assembler/compiler with those from precompiled libraries.

• PIC32-ar Archiver and Librarian: manages the creation and modification of library

files of precompiled code.

• PIC32-conv: converts ELF executable files into ASCII or binary format, suitable

for downloading onto a PROM programmer or evaluation board.

FIGURE 4-1: MPLAB

Libraries

MPLAB IDE Archiver

(PIC32-ar)

MPLAB IDE Converter

(PIC32-conv)

IDE DEVELOPMENT TOOLS COMPONENTS

MPLAB® IDE Text Editor

MPLAB IDE Compiler

(PIC32-gcc)

MPLAB IDE Linker

(PIC32-ld)

MPLAB IDE Debugger

MPLAB IDE Macro

Processor

(PIC32-cpp)

MPLAB IDE Assembler

(PIC32-as)

MPLAB IDE Simulator

MPLAB ICD 2 Emulator/

Programmer

MPLAB REAL ICE™

Emulator/Programmer

4.5 PERIPHERAL LIBRARIES

PIC32 MCUs integrate a large number of on-chip high-performance peripherals.

To accelerate the usage of these peripherals, the MPLAB C32 compiler for PIC32 includes software peripheral libraries compatible with the 16-bit Microchip MCUs. The peripheral libraries are distributed in source and object format along with a detailed API description document. Software applications using MPLAB C32 compiler may call peripheral library functions by simply including the appropriate header file in their source files – the MPLAB C32 compiler has built-in knowledge of library header and archive files.

The peripheral include files are located in C:\Program Files\Microchip\MPLAB

C32\pic32mx\include\peripheral and the full source code is located in C:\Program Files\Microchip\MPLAB C32\pic32-libs\peripheral loca-

tion in corresponding peripheral sub-directory.

The Peripheral Library contains following include files:

PIC32 Tools

Getting Started with PIC32

TABLE 4-1: PERIPHERAL LIBRARY

Peripheral Header File Description

ADC adc10.h Library for the Analog-to-Digital converters support

Memory Org bmx.h Library for configuring the Bus Matrix internal buses, priorities

Analog Comparators cmp.h Library for the Comparator modules support

Comparator Voltage Reference

DMA Controller dma.h Library for the DMA Controller and CRC module support

Nonvolatile (Flash) Memory

C™ i2c.h Library for I2C™ module support

Input Capture incap.h Library for the Input Capture module suport

Interrupts int.h Library for the vectored Interrupt Controller support

Lock lock.h Library for the system lock and unlock support

Output Compare outcompare.h Library for Output Compare module support

Oscillator osc.h Library for Oscillators support

Prefetch Cache pcache.h Library for prefetch-cache module support

Power Modes power.h Library for Sleep and Idle operationsl power modes support

cvref.h Library for the Comparators Voltage reference support

nvm.h Library providing access to Flash erase/program functions

and memory layout

Parallel Master Port pmp.h Library for Parallel Master Port support

GPIO ports.h Library for configuring the I/O ports, reading or writing I/O

data

Reset reset.h Library for Reset control and status

RTCC rtcc.h Library for Real-Time Clock and Calendar support

SYSTEM system.h Library for system level operations

SPI spi.h Library for Serial Peripheral Interface support

Timer timer.h Library to support 16 and 32-bit timers

UART uart.h Library supporting the enhanced UART module

Watchdog wdt.h Library to support the Watchdog Timer module

4.6 SOFTWARE SOLUTIONS

At the time of writing this document, Microchip had not released any drivers. Microchip does intend to develop drivers for key communication peripherals.

4.6.1 Middleware

The following list provides the Microchip middleware components available at the time of writing this document:

• 16-bit file system on SD Memory to support Microsoft MS-DOS file system.

• Two types of TCP/IP stack – 1) Microchip legacy TCP/IP Stack – fully compatible with Microchip 8- and 16-bit Stack, 2) Microchip BSD TCP/IP Stack – A Berkeley socket API stack with many advanced features.

• TCP/IP middleware:

- FTP server to allow the application running on the target PIC32 machine to be

a File Transfer Protocol server.

- SNMP Agent to monitor PIC32 products using SNMP protocol.

- Web server to accept HTTP requests from Web browsers clients.

•USB middleware:

- USB Embedded Host Stack (HID and Mass Storage)

- USB Device Stack (HID, Mass Storage and CDC class)

PIC32 Tools

4.6.2 3rd Party Tools

Check the PIC32 home page (www.microchip.com/PIC32) to learn about the list of companies with support for PIC32.

Getting Started with PIC32

4.7 DEMONSTRATION, DEVELOPMENT AND EVALUATION BOARDS

A wide variety of demonstration, development and evaluation boards for PIC32 MCUs allow quick application development on fully functional systems. Most boards include prototyping areas for adding custom circuitry and provide application firmware and source code for examination and modification. These boards support a variety of features, including LEDs, switches, RS-232 interfaces, LCD displays, etc. The demonstration and development boards can be used in teaching environments, for prototyping custom circuits and for learning about various microcontroller applications.

Currently, the following boards are available:

1. PIC32MX Starter kit (DM320001).

2. Explorer 16 board (DM240001) with PIC32 Plug-in Modules.

4.8 TECHNICAL DOCUMENTATION

The current set of documents that are available for PIC32 MCUs:

• Application Notes:

- AN833, “Microchip TCP/IP Stack” (DS00833)

- AN1107, “HTTP Server for the Microchip BSD TCP/IP Stack” (DS01107)

- AN1108, “Microchip TCP/IP Stack with BSD Socket API” (DS01108)

- AN1109, “An SNMP Agent for the Microchip TCP/IP Stack” (DS01109)

- AN 1111, “ The Microchip FTP Server Using BSD Socket API” (DS01111 )

- AN1140, “USB Embedded Host Stack” (DS01140)

- AN1141, “USB Embedded Host Stack Programmer’s Guide” (DS01141)

- AN1142, “USB Mass Storage Class on an Embedded Host” (DS01142)

- AN1143, “USB Generic Client on an Embedded Host” (DS01143)

- AN1144, “USB HID Class on an Embedded Host” (DS01144)

- AN1145, “Using a USB Flash Drive on an Embedded Host” (DS01145)

- AN1176, “USB Devcie Stack for PIC32 Programmer’s Guide” (DS01176)

- AN1166, “USB Generic Function on an Embedded Device” (DS01166)

- AN1163, “USB HID Class on an Embedded Device” (DS01163)

- AN1169, “USB Mass Storage Class on an Embedded Device” (DS01169)

- AN1164, “USB CDC Class on an Embedded Device” (DS01164)

• Data Sheets:

-DS61143 – PIC32MX Family Data Sheet

• Family Reference Manuals:

-DS61132 – PIC32MX Family Reference Manual

• Code Examples:

- PIC32 examples available in C:\ProgramFiles\Microchip\MPLAB C32\examples and on www.microchip.com/pic32.

• Errata (DS80350, DS80367)

• Migration Documents – available in future

• Design Notes, Tips and Tricks – available in future

• Development Tool Ordering Guide – available in future

GETTING STARTED WITH PIC32

Chapter 5. Step-by-Step Procedures to Setup, Build, and Run a Demo Project

5.1 INTRODUCTION

In this step-by-step procedure, the basic concepts of the MPLAB Project Manager, Editor and Debugger will be presented. You will create a simple project and understand the debug capabilities of MPLAB IDE.

No previous MPLAB IDE knowledge is assumed. For complete features set and comprehensive technical details of MPLAB IDE and its components, please visit our web site (www.microchip.com/ide).

5.2 HIGHLIGHTS

Items discussed in this chapter are:

• MPLAB IDE Setup

• Step-by-Step Guide Overview

• Selecting the Device

• Creating the Project

• Setting Up Language Tools

• Naming the Project

• Adding Files to the Project

• Attaching the Debugger

• Building the Project

• Testing the Code

5.3 MPLAB IDE SETUP

5.3.1 Install MPLAB IDE

To install the MPLAB on your system, you could either use the supplied installation CD or download the latest MPLAB IDE from the Microchip web site.

- To install from a CD-ROM, just place the disk into a CD drive and follow the on-screen prompts (you could use Windows Explorer to find and execute the CD-ROM menu, menu.exe).

- If the MPLAB IDE was downloaded from the Microchip web site, unzip the file and execute the resulting file to install.

Note: Administrative access will be required to install the MPLAB on a PC.

5.3.2 To uninstall MPLAB IDE

-Select Start>Settings>Control Panel to open the control panel.

- Double click on Add/Remove Programs. Find MPLAB IDE and select it.

- Click Change/Remove to remove the program from your system.

Note: Administrative access might be required in order to uninstall the MPLAB.

Getting Started with PIC32

5.3.3 Running MPLAB IDE

To start MPLAB IDE, double click on the icon installed on the desktop after installation or select Start>Programs>Microchip>MPLAB IDE vx.xx>MPLAB IDE display the MPLAB IDE logo followed by the MPLAB IDE desktop.

FIGURE 5-1: MPLAB IDE START SCREEN

. A screen will

5.4 STEP-BY-STEP GUIDE OVERVIEW

To create code that is executable by the PIC32 MCU, source files need to be part of a project. The code can then be built into executable code using selected language tools (assemblers, compilers, linkers, etc.). In MPLAB IDE, the project manager controls this process and will guide us through most of these steps.

All projects will have these basic steps:

- Select Device

The capabilities of MPLAB IDE vary according to which device is selected. Device selection should be completed before starting a project.

- Create Project

MPLAB IDE Project Wizard will be used to create a project.

- Select Language Tools

In the Project Wizard the language tools will be selected. For this tutorial, the PIC32 tools will be used. For other projects, either other Microchip or third party tools might be selected.

- Add Files in Project

We’ll add a template file and a linker script to the project.

- Create Code

Step-by-Step Procedures to Setup, Build, and Run a Demo Project

Some very simple code will be added to the template file to print a “Hello World…” string to a serial console connected to the evaluation board. We will use the UART Peripheral Library provided by Microchip.

- Build Project

The project will be built – causing the source files to be compiled and linked into machine code that can run on the selected PIC32 MCU.

- Test Code

Finally, the code will be tested by running it on the evaluation board.

Note: Some aspects of the user interface will change in future product releases

and the screen shots in this guide may not exactly match the appearance of the MPLAB IDE desktop in later releases.

5.5 SELECTING THE DEVICE

Choose Configure>Select Device from the top IDE menu. In the Device dialog, select the PIC32 variant from the drop-down list.

FIGURE 5-2: MPLAB IDE SELECT DEVICE

The “lights” indicate which MPLAB IDE components support this device.

- A green light indicates full support.

- A yellow light indicates preliminary support for an upcoming part by the particular MPLAB IDE tool component. Components with a yellow light instead of a green light are often intended for early adopters of new parts who need quick support and understand that some operations or functions may not be available.

- A red light indicates no support for this device. Support may be forthcoming or inappropriate for the tool.

Getting Started with PIC32

5.6 CREATING THE PROJECT

The next step is to create a project using the Project Wizard. A project is the way the files are organized to be compiled, assembled and linked. We will use a single “C” file for this project and a linker script.

Choose Project>Project Wizard

From the Welcome dialog, click on Next> to advance.

The Step One dialog allows you to select the device, which we’ve already done. Make sure that it displays the proper PIC32 variant. If not, select the required PIC32 variant from the drop down menu. Click Next>.

FIGURE 5-3: MPLAB IDE WIZARD SELECT DEVICE

Step-by-Step Procedures to Setup, Build, and Run a Demo Project

5.7 SETTING UP LANGUAGE TOOLS

Step Two of the Project Wizard sets up the language tools that are used with this project. Make sure the “Show all installed toolsuites” checkbox is checked. Select Microchip PIC32 C Compiler Toolsuite in the Active Toolsuite list box.

Then “MPLAB PIC32 Assembler (PIC32-as.exe)”, “MPLAB PIC32 C Compiler (PIC32-gcc.exe)”, “MPLAB PIC32 Object Linker (PIC32-ld.exe)”, and “MPLAB PIC32 Archiver (PIC32-ar.exe)”, should be visible in the Toolsuite Contents box. Click on each one to see its location. If MPLAB IDE was installed into the default directory, the paths for these files will be:

• for the MPLAB PIC32 assembler:

- C:\Program Files\Microchip\MPLAB IDE\ MPLAB C32\bin\PIC32-as.exe

• for the MPLAB PIC32 compiler:

- C:\Program Files\Microchip\MPLAB IDE\ MPLAB C32\bin\ PIC32-gcc.exe

• for the MPLAB PIC32 Object Linker:

- C:\Program Files\Microchip\MPLAB IDE\ MPLAB C32\bin\PIC32-ld.exe

• for the MPLAB PIC32 Archiver:

- C:\Program Files\Microchip\MPLAB IDE\ MPLAB C32\bin\PIC32-ar.exe

If these paths do not show up correctly, use the Browse button to set them to the proper files in the MPLAB IDE subfolders.

When you are finished, click Next>.

FIGURE 5-4: MPLAB IDE SELECT LANGUAGE TOOLSUITE

Getting Started with PIC32

5.8 NAMING THE PROJECT

Step Three of the wizard allows you to name the project and put it into a folder. This sample project will be called MyTestProject. Using the Browse button, place the project in a folder named Projects32. Click Next>.

FIGURE 5-5: MPLAB IDE NAMING THE PROJECT

Step-by-Step Procedures to Setup, Build, and Run a Demo Project

5.9 ADDING FILES TO THE PROJECT

Step Four of the Project Wizard allows file selection for the project. This is where we can add existing files to our project. In the current example we don’t have a previously created file but we’ll create one once we’re done with the new project setting.

Just press Next> and the following Summary Screen will show up:

FIGURE 5-6: MPLAB IDE SUMMARY SCREEN

Press Finish and the workspace dialog shows up:

FIGURE 5-7: MPLAB IDE SAVE WORKSPACE

Getting Started with PIC32

Be sure to save the workspace in the Projects32 directory and name this workspace using the same name as for the project: MyTestProject.

Click Save.

The project space is now completely created and it should look like that:

FIGURE 5-8: MPLAB IDE PROJECT SAVE

Now we’ll create our C source file. If the MPLAB IDE Editor window is not open, click

File->New

The Editor window will show up.

Let’s type in a very simple Hello World program in the Editor window and save it in Projects32 directory as main.c. We’ll use the UART Peripheral Library provided by Microchip:

from the top menu or the New File menu shortcut on the standard toolbar.

Step-by-Step Procedures to Setup, Build, and Run a Demo Project

FIGURE 5-9: MPLAB IDE MAIN.C FILE

To add the newly created main.c file to our project just right click on the Source Files folder in the MPLAB IDE MyTestProject.mcp window and select Add File. Browse and select main.c file from the Projects32 directory.

Note: If the Project window is not open, select View->Project from the top IDE

menu.

The linker script that’s needed for this project is selected automatically by the MPLAB IDE. We don’t need to add any other file to our project.

Getting Started with PIC32

Right click on MyTestProject.mcp window and select Save. The test project should be saved. The MyTestProject.mcp should look like:

FIGURE 5-10: MPLAB IDE PROJECT SAVED

TIP: Files can be added and projects saved by using the right mouse button in the project window. In case of error, files can be manually deleted by selecting them and using the right mouse click menu.

Step-by-Step Procedures to Setup, Build, and Run a Demo Project

5.10 ATTACHING THE DEBUGGER

In order to test the code using the PIC32 Starter Kit, please refer to the PIC32MX Starter Kit User’s Guide (DS61144 ) for a sample project and a step-by-step getting started info.

For the purpose of testing our code in this document we will use an Explorer 16 Development board (DM240001), a MPLAB REAL ICE In-Circuit Debugger (DV244005) and a PIC32MX360F512L PIM (MA320001) together with a 9V universal power supply, a serial cable and a USB cable for connecting the REAL ICE to the development board.

FIGURE 5-11: EXPLORER 16, MPLAB

PIC32MX360F512L PIM

Take the following steps to ensure proper connection of the REAL ICE to the Explorer 16 development board:

1. Connect the MPLAB REAL ICE module to the PC with the USB cable.

2. Connect the MPLAB REAL ICE to the Explorer 16 Development Board with the short RJ-11 cable.

3. Apply power to the Explorer 16 board.

4. From the Debugger menu, click Select Tool > MPLAB REAL ICE MPLAB REAL ICE as the debug tool in MPLAB IDE.

5. From the Debugger menu, select Connect to connect the debugger to the device. MPLAB IDE should report in the Output window that it found the PIC32MX360F512L device.

REAL ICE™ AND

to set the

Note: MPLAB IDE may need to download new firmware if this is the first time the

MPLAB REAL ICE is being used with a PIC32 device. Allow it to do so.

Once you have performed these steps, go to the MPLAB IDE window and from the

Debugger->Select Tool

board (i.e., MPLAB REAL ICE should be within the available choices).

Once you have selected the tool, the “Debug Toolbar” should be present just below the main menu bar, together with other toolbars that may be selected.

Note: Be sure to select Debug from the MPLAB IDE Build Configuration drop

down list.

menu select the debugging tool you’re using to connect to the

Getting Started with PIC32

5.11 BUILDING THE PROJECT

From the Project menu, we can compile and link the current files.

To build the project, select either:

Project>Build All

- Right click on the project name in the project window and select Build All

- Click the Build All icon on the Project toolbar. Hover the mouse over icons to see pop-up text of what they represent.

The Output window shows the result of the build process. There should be no errors on any step.

FIGURE 5-12: MPLAB IDE PROJECT BUILD

5.12 TESTING THE CODE

First download the hex image of the program we just built by selecting Debugger->Program from the Debugger menu or directly program from the “Debug Toolbar”. The programming operation should occur with no errors.

In order to test our example application, we need to set-up the PC part too.

Connect a serial cable between the board RS-232 connector and one of the PC’s COM ports and open a Hyper Terminal application on the PC (Programs->Accessories->Communications->Hyper Terminal).

Select a proper name for this connection, click OK and then, in the “Connect To” screen select the COM port that’s connected to the development board.

Step-by-Step Procedures to Setup, Build, and Run a Demo Project

FIGURE 5-13: HYPER TERMINAL CONNECTION SCREEN

Click OK and, on the next screen, select the following communication settings:

• Bits Per Second: 57600

•Data Bits: 8

• Parity: None

• Stop Bits: 1

• Flow Control: None

Click OK and the Hyper Terminal session should be connected to the serial port on the development board.

Now return to the MPLAB IDE and double click on the line:

return nc; in the MPLAB IDE Editor window, the main.c program, to set a breakpoint on that line,

just after the call to strlen().

Click Debugger->Run from the main menu, or Run from the Debug toolbar. The program should start running and it will reach the set breakpoint. The MPLAB IDE window will look very similar to this one:

Getting Started with PIC32

FIGURE 5-14: MPLAB IDE BREAKPOINT REACHED

1. The debugging tool selected to connect to the demo board

2. The device selected on the target board

3. The menus available under the Debugger top menu

4. The Debug toolbar

5. The Source window, with the breakpoint reached

6. The Disassembly window

7. The Output window

8. The Program Memory window

Now, if you take a look to the PC Hyper Terminal window, you should see the output sent by our simple test program to the serial line:

FIGURE 5-15: HYPER TERMINAL RECEIVED CHARACTERS

Step-by-Step Procedures to Setup, Build, and Run a Demo Project

Also, if you look at the Explorer 16 board, you should see the LED D9 lit on.

This shows that the PIC32 Explorer16 demo board and the MPLAB IDE operate correctly.

We just made our first “Hello World” program for PIC32.

There are many other things that you can do in the MPLAB IDE to debug your program. For example, you can notice in that by hovering the mouse over the variable “nc” we can see its actual value (which should be the number of characters sent to the serial port by the putsUART2() function).

Other MPLAB IDE debug features:

• Watch window: you can add variables of peripheral SFRs to the watch window

and monitor their values

• Complex Breakpoint manipulation

• All the useful debug commands: step into, step over, etc, using both the C Source

window and the disassembly listing window.

• Profile your code execution and calculate delay times between different points in

your program.

We presented here the essential steps for getting started with PIC32 using the MPLAB IDE. You are now ready to continue exploring the capabilities of PIC32 and MPLAB IDE. For further information about PIC32 please see the documentation list provided in this document. For more information about the MPLAB IDE please see the “MPLAB IDE Quick Start Guide” (DS51281) available on our site at www.microchip.com following the Design link.

Getting Started with PIC32

NOTES:

Chapter 6. Technical Support Resources

6.1 INTRODUCTION

For information about the Technical Support provided please visit Support.microchip.com.

GETTING STARTED WITH PIC32

Getting Started with PIC32

NOTES:

GETTING STARTED WITH PIC32

Index

Attaching the Debugger

Connecting MPLAB REAL ICE ........................ 31

Customer Notification Service ................................... 5

Customer Support ..................................................... 5

Documentation

Conventions ....................................................... 3

Layout ................................................................ 2

Internet Address ........................................................ 4

Microchip Internet Web Site ...................................... 4

MPLAB .................................................................... 15

MPLAB C32 C Compiler

PIC32-ar Archiver and Librarian ...................... 16

PIC32-as Assembler ........................................ 16

PIC32-conv Converts ELF ............................... 16

PIC32-gcc Compiler ......................................... 16

PIC32-gpp Macro Processor ........................... 16

PIC32-ld Object Linker ..................................... 16

MPLAB IDE

First Silicon Solutions ...................................... 15

MPLAB IDE MyTestProject.mcp ............................. 29

MPLAB IDE Setup .................................................. 21

Install MPLAB IDE ........................................... 21

Running MPLAB IDE ....................................... 22

To Uninstall MPLAB IDE .................................. 21

PIC32 Features

MPLAB Tool-Suite ............................................. 8

PIC32 Tools

MPLAB C32 C Compiler .................................. 16

MPLAB ICD 2 .................................................. 15

MPLAB Integrated Development Environment 15

MPLAB PM3 .................................................... 15

MPLAB REAL ICE In-Circuit Emulator ............. 15

MPLAB SIM32 Device Simulator ..................... 15

Reading, Recommended .......................................... 4

Readme .................................................................... 4

Step-by Step Procedures to Setup, Build, and Run a Demo Project

MPLAB Project Manager ................................. 21

Step-by-Step Guide Overview ................................. 22

WWW Address .......................................................... 4

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

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Boston

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Chicago

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Dallas

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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

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China - Nanjing

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

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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: 91-80-4182-8400 Fax: 91-80-4182-8422

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

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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

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

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Philippines - Manila

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Singapore

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

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Tel: 886-3-572-9526 Fax: 886-3-572-6459

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

01/02/08

Microchip Technology PIC32 User’s Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

1.1 INTRODUCTION

1.2 HIGHLIGHTS

Chapter 1. PIC32 Features

Chapter 2. PIC32 Product Family

2.1 INTRODUCTION

FIGURE 2-1: PIC32 MCU MODULES

Chapter 3. PIC32 Architecture

3.1 INTRODUCTION

FIGURE 3-1: PIC32 BLOCK DIAGRAM

4.1 INTRODUCTION

4.2 HIGHLIGHTS

4.3 MPLAB IDE

Chapter 4. PIC32 Tools

4.4 MPLAB C32 C COMPILER

4.5 PERIPHERAL LIBRARIES

4.6 SOFTWARE SOLUTIONS

4.7 DEMONSTRATION, DEVELOPMENT AND EVALUATION BOARDS

4.8 TECHNICAL DOCUMENTATION

Chapter 5. Step-by-Step Procedures to Setup, Build, and Run a Demo Project

5.1 INTRODUCTION

5.2 HIGHLIGHTS

5.3 MPLAB IDE SETUP

FIGURE 5-1: MPLAB IDE START SCREEN

5.4 STEP-BY-STEP GUIDE OVERVIEW

5.5 SELECTING THE DEVICE

FIGURE 5-2: MPLAB IDE SELECT DEVICE

5.6 CREATING THE PROJECT

FIGURE 5-3: MPLAB IDE WIZARD SELECT DEVICE

5.7 SETTING UP LANGUAGE TOOLS

FIGURE 5-4: MPLAB IDE SELECT LANGUAGE TOOLSUITE

5.8 NAMING THE PROJECT

FIGURE 5-5: MPLAB IDE NAMING THE PROJECT

5.9 ADDING FILES TO THE PROJECT

FIGURE 5-6: MPLAB IDE SUMMARY SCREEN

FIGURE 5-7: MPLAB IDE SAVE WORKSPACE

FIGURE 5-8: MPLAB IDE PROJECT SAVE

FIGURE 5-9: MPLAB IDE MAIN.C FILE

FIGURE 5-10: MPLAB IDE PROJECT SAVED

5.10 ATTACHING THE DEBUGGER

5.11 BUILDING THE PROJECT

FIGURE 5-12: MPLAB IDE PROJECT BUILD

5.12 TESTING THE CODE

FIGURE 5-13: HYPER TERMINAL CONNECTION SCREEN

FIGURE 5-14: MPLAB IDE BREAKPOINT REACHED

FIGURE 5-15: HYPER TERMINAL RECEIVED CHARACTERS

Chapter 6. Technical Support Resources

6.1 INTRODUCTION

WORLDWIDE SALES AND SERVICE