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Viewing Variables during debug

Question asked by LPCware Support on Mar 31, 2016

Local Variables

 

All of the local variables for the current stack frame can be viewed in the Variables view.

 

Global Variables

 

Unlike LPCXpresso IDE v4 and earlier, in LPCXpresso v6 globals are not accessible through the Variables view.To view the values of global variables whilst debugging, you need to add them to the Expressions view. A simple way to do this is to highlight the variable of interest in the Editor view, then right click and use the "Add Watch Expression..." option. The value of each global added will then be updated each time execution of your application is paused or a breakpoint hit.

 

Alternatively, you can use the "List, select and add globals to view" icon in the Expressions View

 

GlobExpr1.jpg

 

to show a list of available global variables in a pick list. Simply select the variables that you are interested in

 

GlobExpr2.jpg

 

and they will be added to the Expressions view for you.

 

GlobExpr3.jpg

 

Displaying address of variables

 

It is possible to optionally display the actual address of globals that you have added to the Expressions view (and also the address of a local in the Variables view). To do this, click on the "View Menu" icon (the downward facing triangle on the right hand side of the Expressions/Variables View), and select:

 

View Menu : Layout - Select Columns - Address

 

Changing format variables displayed in

 

Variables displayed in the Expressions view (and Variables view) are displayed typically in decimal in the "Value" column, and then in several bases in the detailed information pane for the currently selected variable. You can change the base used for displaying in the "Value" column by clicking on the "View Menu" icon (the downward facing triangle on the right hand side of the Expressions/Variables View), and selecting :

 

View Menu : Number format

 

Note - although there is a workspace preference for setting a default format for Variables and Expressions, this does not currently get picked up by the views themselves.

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