Breakpoints

Current Breakpoints

Lists the breakpoints. Double-click a list item to modify the breakpoint definition.

Expression

Specifies a condition for which the breakpoint is triggered. Examples are provided in the description of the Breakpoint window.

Count

The value specifies how often the expression has to become true before the breakpoint is triggered.

Command

This command is executed when the breakpoint is triggered. µVision executes the command and resumes execution to the target program. Debug or signal functions can be used. To halt program execution from within a µVision function, set the _break_ system variable.

Define

Saves the changes or creates a new breakpoint.

Kill Selected

Removes the highlighted breakpoint.

Kill All

Removes all breakpoints.

Close

Closes the dialog.

Access

Read

Defines an access break that triggers when a memory read access occurs.

Write

Defines an access break that triggers when a memory write access occurs.

Size

Specifies the memory size that is checked for an read- or write access break.

Bytes

Defines the memory size in bytes.

Objects

Defines the memory size as objects.

Note

• When an Access Breakpoint (read or write) is set to a peripheral register (SFR) in the Simulator, the breakpoint might trigger even though the application did not access the peripheral register. This happens because the µVision Simulator makes no difference between application-driven and Simulator-internal accesses.