additional information: The ULP wakeup every 5 minutes, which we assume is derived from the same clock source (either 32kHz crystal or 150kHr RC) does happen relatively sharp every 5 minutes. We do see a difference in accuracy between the crystal and the RC oscillator - as to be expected - but not t...

We're developing an IoT application around the Wrover module. In this application, the ULP collects sensor data every five minutes while the main processors are in deep sleep. Once every hour, the main processor wakes up, collects the measurement data from the ULP and decides on proper actions. Beca...

Does anyone have an example of a deep sleep wake stub using i2c communication ?

According to official documentation, deep sleep wake stub code can only call functions implemented in ROM or loaded into RTC Fast Memory.
How/where can I find which functions have been implemented in ROM ?

Hi, I'm trying to set up the IDF development environment according to instructions on http://esp-idf.readthedocs.io/en/latest/get-started/ IDF_PATH environment variable is set up and compiling from the mingw32 shell works fine. However, after a lot of effort I still fail to set up Eclipse to compile...