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Question, i.MX6S PUE/PKE setting

Question asked by AVNET JAPAN FAE (team share account) on May 24, 2015
Latest reply on May 25, 2015 by igorpadykov

Hi All,

 

I would like to ask about the electrical specification of the pads of i.MX6.

What my customer wants to know is;

Does the electrical specification change at the moment which PUE or PKE bit is re-written with the same values as written already?

Does it make sense?

In my customer’s lab, they found their software re-write some PUE/PKE settings on the DDR related pins with the same value after the setting is done already. And their product has been already shipped into market.

Properly speaking, the setting of second time should not be done because the second time is executed during the software is running with DDR memory.

Though the second setting is to re-write with the same value, they need to know if the writing to the register itself can impact the electrical specification at the moment of writing register.

If it can impact, they consider the firmware update because the change of electrical specification can occur during DDR access.

 

Thanks,

Miyamoto

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