Here is my project:
when I press continue, it always stop at the same place, but I didn't set any breakpoint.
How can I fix that?
My name is Stephen and I work at Arm.
Sorry, Arm DS does not provide any graphical data visualization capability like this.
The DSTREAM-ST family of debug probes offer debug and instruction trace of Arm targets, but again, with no graphical data visualization capability.
If using the Expression view in Arm Debugger, then enter the variable name ("cnt"). The Expressions view will be updated with the new value of the variable the next time the target stops. For global variables held in RAM (as opposed to local variables held in registers), you can use the auto timed-update feature of the Memory view to show continuously changing variables, even if the target is still running. You can do this by telling the debugger (in the Address field in the Memory view) which memory bus to access the variable on, by prefixing the variable name with the "address-of" operator and a bus name, e.g. "AHB:&cnt". However, the auto timed-update feature is really intended to much lower frequencies (~1 sec) than the 50uS you need.
Hope this helps