ESP32-S3 ULP_RISC-V interrupts to wake up the ULP after HALT()

[Mycael_]

The title says it all, can the ulp be woken up from "sleep" (halt) by using a gpio interrupt that was implemented in the ulp code?
I know it can be triggered by the timer if we don't specify timer_stop, but I want it to be woken up by the gpio interrupts previously implemented.

[MicroController]

https://github.com/espressif/esp-idf/tr ... _interrupt , and specifically
https://github.com/espressif/esp-idf/bl ... main.c#L85

[Mycael_]

I am assuming that I don't have a way to specify which pin woke up the ulp, unless I make some type of logic to be run and check the source of the signal after waking up, correct?

[MicroController]

Correct.
Plus: The GPIO wake-up is level-triggered, not edge-triggered; implies: the ULP will keep waking up as long as the specified input level is present.

[Mycael_]

Ok, thank you very much for the clarification