Mirrors/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2026-08-18 06:35:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'doc/add_description_for_pd_top_gpio_configuration_v5.2' into 'release/v5.2'

Browse Source 
docs(esp_pm): Adding notes on configuring GPIOs when using PD_TOP sleep (v5.2)

See merge request espressif/esp-idf!30799
This commit is contained in:
Jiang Jiang Jian
2024-06-05 18:47:54 +08:00
parent 05872cfc2d b2187bc619
commit 95dd9f119d
3 changed files with 26 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
docs/en/api-reference/system/power_management.rst
View File

@@ -163,6 +163,10 @@ Light-sleep Peripheral Power Down
For peripherals that do not support Light-sleep context retention, if the Power management is enabled, the ``ESP_PM_NO_LIGHT_SLEEP`` lock should be held when the peripheral is working to avoid losing the working context of the peripheral when entering sleep.
.. note::
When the peripheral power domain is powered down during sleep, both the IO_MUX and GPIO modules are inactive, meaning the chip pins' state is not maintained by these modules. To preserve the state of an IO during sleep, it's essential to call :cpp:func:`gpio_hold_dis` and :cpp:func:`gpio_hold_en` before and after configuring the GPIO state. This action ensures that the IO configuration is latched and prevents the IO from becoming floating while in sleep mode.
API Reference
-------------