Brownout Detection ISR for ESP32-S3 WROOM1

[Prathik]

We are trying to trigger an interrupt when Brown out occurs. In the ISR we want to write few bytes of data to NVS.
We tried searching for example programs but were unsucessful. It would be very helpful if someone could provide an example program the same.
Please note: We are using Espressif-IDE V2.9.1

[Prathik]

Any help is appreciated.