Fujitsu MB2146-401 Note d'application - Page 22

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4.3.3 Types of breakpoints and how to set

There are three types of breakpoint as follows:

Select [Breakpoint] from the [Debug] menu to open the [Break] dialog.

This dialog can also set breakpoints. It also provides a list of set breakpoints.

• Code breakpoint

Code breakpoint is a breakpoint to stop the program when the PC attempts to

execute a set address. For both Simulator and Emulator, the PC stop position

is a breakpoint before execution. Up to 256 code breakpoints can be set.

• Data breakpoint

Data breakpoint is a breakpoint to stop program when the PC accesses data

at a set address. Read, write, and read/write can be set as access conditions.

Up to two data breakpoints can be set.

• Sequence breakpoint

This breakpoint stops the program being executed when the program is

executed at two specified addresses from "Level 1" to "Level 2."

4.3.4 Trace Windows

When the trace function is enabled, data is always sampled and stored in the trace

buffer during execution.

Trace information to be actually displayed is that on the 16 branches immediately

preceding suspension of execution.

The trace buffer is structually a ring-shaped, so data is overwritten automatically

from the beginning of the sequence buffer when the trace buffer is full.

1. Select [Trace] from the [View] menu to open the trace window.

MCU-AN-395002-E-V10

MB2146-09 – Installation Guide

Chapter 4 Setting up the Emulation Software

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