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|Home > ETM-M33 Functional Description > Programmers Model > Modes of operation and execution > Controlling ETM-M33 programming|
When programming the ETM-M33 registers, you must enable all the changes at the same time.
For example, if the counter is reprogrammed, it might start to count based on incorrect events, before the trigger condition has been correctly set up.
To disable instruction trace operations during programming, use:
The following figure shows the procedure to use.
The Cortex®‑M33 processor does not have to be in debug state while you program the ETM-M33 registers.