how to store 3 variable from a program on the Run and use these variables and also update after each run

[azwin]

in my current application program iam using nrf52840 . SDK 15.2.0 . i want to store 3 variables in the memory location /flash and want to use these variable for further calculation after that i need to update the 3 variable for the next further calculation 

[Jared]

Hi,

Couldn't you just use global variables or declare them as static? 

regards
Jared

[azwin]

i did this , but my program function , goes to sleep after it come back the variable are the same as declared not updated 

[Jared]

What kind of sleep are you using? System Off sleep or System On(IDLE)?

regards

Jared

[azwin]

system off sleep 

[azwin]

NVIC_SystemReset

[Jared]

Hi,

After waking up from System Off sleep the CPU will do a reset, which means that all variables not stored in non-volatile memory will also be reset.

regards

Jared