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deep sleep: add functions to check wakeup cause

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This change adds esp_deep_sleep_get_wakeup_cause, which returns the
source which has caused wakeup from deep sleep.

Similar to esp_deep_sleep_get_ext1_wakeup_status, a function is added
to check touch pad wakeup status: esp_deep_sleep_get_touchpad_wakeup_status.
This function returns the touch pad which has caused wakeup.
This commit is contained in:
Ivan Grokhotkov
2017-01-27 23:48:00 +08:00
parent 07ff47f103
commit a64181f14f
3 changed files with 76 additions and 3 deletions
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13
docs/api/system/deep_sleep.rst
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@@ -27,7 +27,7 @@ The following function can be used to enable deep sleep wakeup using a timer.
.. doxygenfunction:: esp_deep_sleep_enable_timer_wakeup
Touch pad
^^^^^
^^^^^^^^^
RTC IO module contains logic to trigger wakeup when a touch sensor interrupt occurs. You need to configure the touch pad interrupt before the chip starts deep sleep.
@@ -100,6 +100,17 @@ The following function can be used to enter deep sleep once wakeup sources are c
.. doxygenfunction:: esp_deep_sleep_start
Checking deep sleep wakeup cause
--------------------------------
The following function can be used to check which wakeup source has triggered wakeup from deep sleep mode. For touch pad and ext1 wakeup sources, it is possible to identify pin or touch pad which has caused wakeup.
.. doxygenfunction:: esp_deep_sleep_get_wakeup_cause
.. doxygenenum:: esp_deep_sleep_wakeup_cause_t
.. doxygenfunction:: esp_deep_sleep_get_touchpad_wakeup_status
.. doxygenfunction:: esp_deep_sleep_get_ext1_wakeup_status
Application Example
-------------------