Use one of the following methods to set a break event (access type) that stops programs with the access to a variable/I/O register.

Perform this operation in the Editor panel/Disassemble panel in which the source text/disassembled text is displayed.

Follow the operation listed below from the context menu, in accordance with your desired access type, after selecting an arbitrary variable or I/O register on the source text or the disassembled text. Note, however, that only global variables, static variables inside functions, and file-internal static variables can be used.

 

At this time, if you have specified a value in the text box in the context menu, break will occur only when the specified value is used for the reading, writing or reading/writing. On the other hand, if no value is specified, reading., writing or reading/writing the selected variable by any value will cause the break to occur.

You can set break events in the Watch panel.

Follow the operation listed below from the context menu, in accordance with your desired access type, after selecting the registered watch-expression (multiple selections not allowed).

Note, however, that only global variables, static variables inside functions, file-internal static variables, and I/O register can be used.

 

At this time, if you have specified a value in the text box in the context menu, break will occur only when the specified value is used for the reading., writing or reading/writing. On the other hand, if no value is specified, reading., writing or reading/writing the selected watch-expression by any value will cause the break to occur.

 

When you have performed the above operation, the set break event (access type) is managed in the Events panel as a Hardware Break event (access type) (see "2.17 Manage Events" for details).