|ARM Technical Support Knowledge Articles|
DAPCLK is the clock for the debug bus which connects your chosen DP with the AHB-AP contained inside the Cortex-M3. It is specified to be fully asynchronous to all other clocks in the system, but for simple systems (and in the example CortexM3Integration.v we provide) it may be (and is) driven from the same source as HCLK.
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