Cannot wakeup from deepsleep
Posted: Fri Sep 22, 2017 7:34 am
I have a strange issue with one of my ESP32 modules (AnalogLamb's ALB32-WROVER): the module cannot exit deepsleep once it enters it.
Tested with deepsleep example from esp-idf (esp-idf/examples/system/deep_sleep).
The example runs as expected on every other board/module I have, all wakeup sources wakes the ESP32 as expected. On ALB32-WROVER module, the deepsleep is entered, but none of the wakeup sources can cause the exit from it.
There is no other issues with that module, every application I've run on on it runs without problem.
The issue occurs even if nothing is connected to the board (except power).
My questions:
- Can ESP32 be damaged in a way that wakeup from deepsleep does not work (but everything else does work) ?
- Could some problem with the module design cause such a problem ?
- What else could cause such a behavior (if the wakeup source(s) are configured correctly) ?
Tested with deepsleep example from esp-idf (esp-idf/examples/system/deep_sleep).
The example runs as expected on every other board/module I have, all wakeup sources wakes the ESP32 as expected. On ALB32-WROVER module, the deepsleep is entered, but none of the wakeup sources can cause the exit from it.
There is no other issues with that module, every application I've run on on it runs without problem.
The issue occurs even if nothing is connected to the board (except power).
My questions:
- Can ESP32 be damaged in a way that wakeup from deepsleep does not work (but everything else does work) ?
- Could some problem with the module design cause such a problem ?
- What else could cause such a behavior (if the wakeup source(s) are configured correctly) ?