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4 years, 10 months ago.
Saving current state to be used after reboot or reset
We are using a state machine in an embedded device and want to be able to restore its previous state after a warm reboot caused by either a fatal error or the hardware watchdog which triggers the reset pin. Ideally we are looking for a solution that works after both a cold or warm reset. But anything that only works in case of a warm reset is also great
We looked into misusing some of the functions described here to store the current state in a persistent way by logging it as a warning or error (haven't tried yet). Does anyone know a more elegant solution?
Thank you in advance!
Device: Nucleo F446RE mbed version: mbed-os-5.12.4
1 Answer
4 years, 10 months ago.
Hello Mo K,
You can try to use Mbed's NVStore API to save the status of state machine for next reboot.