You do not debug the DSPF, You debug the driver program, RPG, CL, COBOL, etc.
You can set break points just before and after instructions the interface with the DSPF.
Then you can check the values of the variables and the indicators going to and from the DSPF.
If this does not help you, please give us more information as the the problm you are having and possibly post you source code.
Last Wiki Answer Submitted: September 15, 2011 12:43 pm by CharlieBrowne32,825 pts.