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How long does user need to wait after change the POST_PODF?

Question asked by ko-hey on Aug 1, 2017
Latest reply on Aug 28, 2017 by ko-hey

Hi all

 

I'm changing the DDR frequency dynamically in i.MX7D.

In particular, I'm changing MUX, PRE_PODF, POST_PODF of CCM_TARGET_ROOT 49, CCM_TARGET_ROOT 65.

 

After changing MUX, PRE_PODF, POST_PODF, please tell me how much to wait until the frequency is stably supplied to the peripheral.

 

If there are not any specific information, please tell me how to know the clock is stable or not.

 

Ko-hey

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