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3.2.1. Controlling ETM programming
When programming the ETM 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.
You must use the ETM main enable in the TRCPRGCTLR to disable
all trace operations during programming. See Programming Control Register. Figure 3.1 shows the procedure
Figure 3.1. Programming ETM-R7 registers
The Cortex-R7 MPCore processor does not have to be in the
debug state while you program the ETM registers.
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