I'm facing problem regarding breakpoints in keil software when i was trying to use debug mode,i tried to put breakpoints,but breakpoint logo was of grey colour,which was disable.I can't put breakpoints in my program anywhere in any line,so what should be the issue?Whether problem is in software or in program? is it possible ,because of problem in program,can breakpoint be disable? i'm not getting the way to turn breakpoint on so that i can debug my program. please get me its solution