iMX28 RESETN to initialize internal DC-DC converter

[nxp_jbmbtbklg]

Hi all,

Do you know if making a reset on the iMX28 (ball A14 of the IC) I will initialize its internal DC/DC converter?

I've checked the Reference Manual, 11.3.5 Reset Sequence but I'm lost yet

Thank You!

[nxp_jbmbtbklg]

I boot the iMX28 from a NAND Flash. This NAND Flash is powered from the iMX28 DCDC_VDDIO line (ball C17).

If the internal DC-DC converter makes a power down for any reason the flash becomes unpowered.

Do you think that I could reboot the iMX28 in this situation?

Thank You!

[igorpadykov · Accepted solution]

DCDC can be restarted as in initial power-up case,

just RESETN will not restart it.

Best regards
igor

[igorpadykov]

Hi Jesus

no, RESETN will not initialize DC/DC converter in general reset

is described in sect.11.3.5 Reset Sequence i.MX28 Reference Manual

http://cache.freescale.com/files/dsp/doc/ref_manual/MCIMX28RM.pdf

Best regards
igor
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