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i.MX6UL SNVS-LP-RTC low voltage detection

Question asked by ユーリ レリョーサ on Jun 1, 2016
Latest reply on Jun 6, 2016 by Yuri Muhin



We are planning on using the on-chip RTC module of the cpu.

We are now able to make it work and retain/make the clock running during power-off via external battery.

As with normal external RTC modules, they have a "Low voltage detected" function to judge whether power was cut off from the module. When low voltage is detected you cannot trust the RTC clock values so we reset to clock values to "0"


As we would like to use the CPU's internal RTC, is there a way to judge for "low voltage" or if RTC values can be "trusted"


Thank you

Best Regards,

Yuri Rellosa