ESP32C3 does not store variable value in RTC_DATA_ATTR

[PJ_Glasso]

Hi there,
Ah’ I see that now, I stopped comprehending after “does not store variable” Snap!
low hanging fruit first
I have sleep code w/ wake button included in the Grove Expansion Flash Upgrade Demo on here. One is for Nrf52840 and the other is for Xiao ESP32C3 with that boot count code working, I don’t recall same issues, it’s battery and USB, works both ways.
May be off your mark slightly but good info just the same.
HTH
GL PJ

swing and a miss,
I found this one , It’s the preferences LIB, Works and saved across resets.

Saving interrupt count on QSPI flash

Hi There, Code looks good, I would add that the Count Variable needs to be declared as “Volatile” for one and you may have to Write a Page at a time with the QSPI as Block device? HTH GL PJ [block device] So I tried this way and it works across resets, From the Wiki… #include <Preferences.h> Preferences preferences; void setup() { Serial.begin(115200); delay(3000); Serial.println(); // Open Preferences with my-app namespace. Each application module, library, …