iMX8MM SNVS mode

[siva_prabhakara]

how to enter SNVS or RTC mode on iMX8MM.

Section 3.1.6 on this document https://www.nxp.com/docs/en/nxp/data-sheets/IMX8MMCEC.pdf

says about a SNVS oower mode with just SNVS power rails active.

[siva_prabhakara]

hi Igor,

thanks, i read that document, how to turn off these rails? Can it be done via Software?

[igorpadykov · Accepted solution]

Hi siva_prabhakara

one can try linux poweroff command

https://man7.org/linux/man-pages/man8/poweroff.8.html

 

Best regards
igor

[igorpadykov]

Hi siva_prabhakara

for entering SNVS mode it is necessary to turn off all power supplies,

leave only VDD_SNVS_0P8 (0.8 V), NVCC_SNVS_1P8 (1.8 V) powered from

battery or other external source.

 

Best regards
igor