5.8. Filtering the ETMv1 trace

The ETM has a TraceEnable function that you can use to enable or disable tracing during a trace run. This signal is typically used to select the areas of code that are traced and to disable the trace when code is executed that is of limited use to the debugging process. The advantage of disabling the trace information is that it effectively increases the amount of useful information that can be captured by a given size of buffer in the TPA, enabling selective tracing over a longer time period.

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