sam4e system tick clock source

Discussion around product based on ARM Cortex M4 core.

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sccchang
Location: Taiwan, ROC
Posts: 1
Joined: Sun Apr 13, 2008 8:05 pm

sam4e system tick clock source

Mon Jul 27, 2015 2:19 am

Hi all,

According to the sam4e document, system tick clock source can be from prcossor or form external. However, I can't find and sample code and  the external clock pin was not defined ether. If I can use external clock as system tick clock source, I can slow down the processor clock before sleep and recover it after wakeup. I think this can make the power consumption much smaller when in sleep. This will be much simplaer than tickless approach. Is can any on can help?

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