pioduino/esp-idf
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'feature/vdd_sdio_pd_configurable' into 'master'

Browse Source 
system: add VDD_SDIO power domain configuration for light sleep

Closes IDFGH-2893

See merge request espressif/esp-idf!12481
This commit is contained in:
Angus Gratton
2021-03-26 08:23:41 +00:00
parent 96e3ba881c 49f5fb5112
commit 1dfa0e0aa1
4 changed files with 70 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/en/api-reference/system/sleep_modes.rst
+11
View File
@@ -1,6 +1,8 @@
Sleep Modes
===========
{IDF_TARGET_SPI_POWER_DOMAIN:default="VDD_SPI", esp32="VDD_SDIO"}
Overview
--------
@@ -132,6 +134,15 @@ This wakeup mode doesn't require RTC peripherals or RTC memories to be powered o
:cpp:func:`esp_sleep_enable_gpio_wakeup` function can be used to enable this wakeup source.
.. warning::
Before entering light sleep mode, check if any GPIO pin to be driven is part of the {IDF_TARGET_SPI_POWER_DOMAIN} power domain. If so, this power domain must be configured to remain ON during sleep.
For example, on ESP32-WROOM-32 board, GPIO16 and GPIO17 are linked to {IDF_TARGET_SPI_POWER_DOMAIN} power domain. If they are configured to remain high during
light sleep, the power domain should be configured to remain powered ON. This can be done with :cpp:func:`esp_sleep_pd_config()`::
esp_sleep_pd_config(ESP_PD_DOMAIN_VDDSDIO, ESP_PD_OPTION_ON);
UART wakeup (light sleep only)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^