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CSE8E10-2

Using breakpoints

IAR C-SPY® Hardware Debugger Systems

User Guide

Break At

Specify the location of the breakpoint in the Break At text box. Alternatively, click the

Edit browse button to open the Enter Location dialog box; see the IAR Embedded

Workbench® IDE User Guide.

Action

You can optionally connect an action to a breakpoint. Specify an expression, for instance

a C-SPY macro function, which is evaluated when the breakpoint is triggered and the

condition is true.

Conditions

You can specify simple and complex conditions.

When a software code breakpoint is set in the internal flash ROM of the target

microcomputer, a number of instructions must be rewritten and processed every time it

is triggered, which makes software code breakpoints slow.

THE BREAK CONDITION DIALOG BOX

To set a data breakpoint, right-click in the View>Breakpoints window. On the context

menu, choose New Breakpoint>Break Condition to set a new break condition.

Alternatively, to modify an existing break condition, select one in the Breakpoint

window and choose Edit on the context menu.

Conditions Description

Expression A valid expression conforming to the C-SPY expression syntax.

Condition true The breakpoint is triggered if the value of the expression is true.

Condition changed The breakpoint is triggered if the value of the expression has changed

since it was last evaluated.

Skip count The number of times that the breakpoint must be fulfilled before a break

occurs (integer).

Table 10: Software breakpoint conditions

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 40 41

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