Question, i.MX28 DISABLE_STEPPING bit

Aemj — Tue, 09 Dec 2014 04:33:31 GMT

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

Re: Question, i.MX28 DISABLE_STEPPING bit

art — Tue, 30 Dec 2014 11:48:22 GMT

Q1. If one desires to disable default stepping behavior, does one need to set DISABLE_STEPPING-bit every time TRG bit is changed?

A1. No.

Q2. Change TRG then set DISABLE_STEPPING bit, Or, set DISABLE_STEPPING then change TRG?

A2. Set DISABLE_STEPPING then change TRG.

Q3. Is it possible for internal DCDC converter to have incorrect voltage by incorrect procedure of setting DISABLE_STEPPING bit?

A3. This is not a known issue.

Have a great day,
Artur

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Question, i.MX28 DISABLE_STEPPING bit

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