if set breakpoint at DEF(), OK, ABC() can execute. if set breakpoint at ABC(), then Step(F11) in ABC() -- it's not function call, OK, if set breakpoint at ABC(), then StepOver(F10) ABC() -- Err!!
**JLink Warning: T-bit of XPSR is 0 but should be 1. Changed to 1.
at same time, the program running! there ABC(); DEF(); not a special function, but many case!
Main() //example { ...... ABC(); DEF(); ...... }
