Storing variables in standby mode

[NZama.1]

Can anyone please help me with this problem. I want to store some values while the processor is in Standby mode. As, when it wakes up all the variables are reset. How can i make the variables static in case of standby mode. Any help will be appreciated. Thank you.

[Javier1]

which processor?

[NZama.1]

It's STM32F407VGT6 Discovery board

[MM..1]

STANDBY mode is only ended by aka reset MCU , then your code reinit all, but you can read about RTC backup registers ... This way only under power MCU hold values.

If you need store somethink after power lost , you need EEPROM external or emulated in flash...