User manual

MPLAB

REAL ICE

™

IN-CIRCUIT

EMULATOR USER’S GUIDE

Chapter 8. Debug for 32-Bit Devices

8.1 INTRODUCTION

The following debug functions are specific to 32-bit devices:

• Data Capture and Runtime Watches

• PIC32 Instruction Trace

8.2 DATA CAPTURE AND RUNTIME WATCHES

At this time, MPLAB REAL ICE in-circuit emulator does not support data capture for

32-bit devices. Runtime watches, however, are supported.

A runtime watch provides updating of a variable in the following windows during

program execution instead of on halt:

• Watch – View menu

• File Register – View menu

• Special Function Register (SFR) – View menu

To set up runtime watches:

1. Select View>Watch

to open the Watch window to set up runtime watches for

specific data addresses. See Section 11.3.9 “Watch Window - Data Cap-

ture/Runtime Watch” for more information.

2. Select Debugger>Settings

and click the Clock tab. The emulator needs to know

the instruction cycle speed. (See Section 11.5.6 “Settings Dialog, Clock Tab”

for more information.) Enter your information here.

3. Rebuild the project (Project>Build All

) and reprogram the target device

(Debugger>Program

4. Run the program. Watch variable values change in an MPLAB IDE window.

8.3 PIC32 INSTRUCTION TRACE

This section will discuss trace for 32-bit devices and how to use it.

• Requirements for Trace

• Setting Up and Using Trace

• Trace Hardware Specifications

8.3.1 Requirements for Trace

The following is required to use trace for 32-bit (PIC32MX) devices:

• MPLAB IDE v8.00 and above

• MPLAB ASM32/LINK32/C32 v1.00 and above

• PIC32MX Plug-In Module (PIM) containing a device that supports trace and a

trace port

• PIC32MX Trace Interface Kit (AC244006) containing a 12-inch trace cable and a

trace adapter board