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.
Solved! Go to Solution.
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.