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Question, i.MX28 DISABLE_STEPPING bit

Question asked by AVNET JAPAN FAE (team share account) on Dec 8, 2014
Latest reply on Dec 30, 2014 by Artur Petukhov

Dear team,

 

I would like to ask about the DISABLE_STEPPING bit in HW_POWER_VDDDCTRL register of i.MX28.

(1)

If one desires to disable default stepping behavior, does one need to set DISABLE_STEPPING-bit every time TRG bit is changed?

(2)

And please let me know the correct sequence on setting DISABLE_STEPPING bit.

Change TRG then set DISABLE_STEPPING bit, Or, set DISABLE_STEPPING then change TRG?

(3)

Is it possible for internal DCDC converter to have incorrect voltage by incorrect procedure of setting DISABLE_STEPPING bit?

 

Thanks,

Miyamoto

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