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ULP coprocessor wakeup + RTC_PERIPH ON

Posted: Mon Dec 02, 2019 5:49 am
by boarchuz
The Sleep Modes documentation notes:
Revisions 0 and 1 of the ESP32 only support [ULP coprocessor wakeup] when RTC peripherals are not forced to be powered on (i.e. ESP_PD_DOMAIN_RTC_PERIPH should be set to ESP_PD_OPTION_AUTO).
https://docs.espressif.com/projects/esp ... sor-wakeup

With ESP32-WROOM32Ds reporting revision 1, ULP CP wakeup is working perfectly fine regardless of whether RTC peripherals are being set to auto or forced to be powered on. (I've used an RTCIO to confirm that peripherals are definitely forced on.)

Can I disregard this note?

Re: ULP coprocessor wakeup + RTC_PERIPH ON

Posted: Wed Dec 11, 2019 1:25 am
by boarchuz
bump