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feat(pm): add internal pull-up/downs option for gpio used for deepsleep wakeup

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This commit is contained in:
Lou Tianhao 2023-09-19 11:10:53 +08:00
parent a48a845cfa
commit 0c09543d65
3 changed files with 16 additions and 3 deletions
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7
components/esp_hw_support/Kconfig
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@ -132,6 +132,13 @@ menu "Hardware Settings"
If you are seeing "flash read err, 1000" message printed to the If you are seeing "flash read err, 1000" message printed to the
console after deep sleep reset, try increasing this value. console after deep sleep reset, try increasing this value.
config ESP_SLEEP_GPIO_ENABLE_INTERNAL_RESISTORS
bool "Allow to enable internal pull-up/downs for the Deep-Sleep wakeup IOs"
default y
help
When using rtc gpio wakeup source during deepsleep without external pull-up/downs, you may want to
make use of the internal ones.
endmenu endmenu
menu "ESP_SLEEP_WORKAROUND" menu "ESP_SLEEP_WORKAROUND"

10
components/esp_hw_support/include/esp_sleep.h
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@ -258,9 +258,13 @@ esp_err_t esp_sleep_enable_ext1_wakeup(uint64_t mask, esp_sleep_ext1_wakeup_mode
* @note This function does not modify pin configuration. The pins are * @note This function does not modify pin configuration. The pins are
* configured inside esp_deep_sleep_start, immediately before entering sleep mode. * configured inside esp_deep_sleep_start, immediately before entering sleep mode.
* *
* @note You don't need to care to pull-up or pull-down before using this * @note You don't need to worry about pull-up or pull-down resistors before
* function, because this will be set internally in esp_deep_sleep_start * using this function because the ESP_SLEEP_GPIO_ENABLE_INTERNAL_RESISTORS
* based on the wakeup mode. BTW, when you use low level to wake up the * option is enabled by default. It will automatically set pull-up or pull-down
* resistors internally in esp_deep_sleep_start based on the wakeup mode. However,
* when using external pull-up or pull-down resistors, please be sure to disable
* the ESP_SLEEP_GPIO_ENABLE_INTERNAL_RESISTORS option, as the combination of internal
* and external resistors may cause interference. BTW, when you use low level to wake up the
* chip, we strongly recommend you to add external resistors (pull-up). * chip, we strongly recommend you to add external resistors (pull-up).
* *
* @param gpio_pin_mask Bit mask of GPIO numbers which will cause wakeup. Only GPIOs * @param gpio_pin_mask Bit mask of GPIO numbers which will cause wakeup. Only GPIOs

2
components/esp_hw_support/sleep_modes.c
View File

@ -1195,6 +1195,7 @@ static void gpio_deep_sleep_wakeup_prepare(void)
if (((1ULL << gpio_idx) & s_config.gpio_wakeup_mask) == 0) { if (((1ULL << gpio_idx) & s_config.gpio_wakeup_mask) == 0) {
continue; continue;
} }
#if CONFIG_ESP_SLEEP_GPIO_ENABLE_INTERNAL_RESISTORS
if (s_config.gpio_trigger_mode & BIT(gpio_idx)) { if (s_config.gpio_trigger_mode & BIT(gpio_idx)) {
ESP_ERROR_CHECK(gpio_pullup_dis(gpio_idx)); ESP_ERROR_CHECK(gpio_pullup_dis(gpio_idx));
ESP_ERROR_CHECK(gpio_pulldown_en(gpio_idx)); ESP_ERROR_CHECK(gpio_pulldown_en(gpio_idx));
@ -1202,6 +1203,7 @@ static void gpio_deep_sleep_wakeup_prepare(void)
ESP_ERROR_CHECK(gpio_pullup_en(gpio_idx)); ESP_ERROR_CHECK(gpio_pullup_en(gpio_idx));
ESP_ERROR_CHECK(gpio_pulldown_dis(gpio_idx)); ESP_ERROR_CHECK(gpio_pulldown_dis(gpio_idx));
} }
#endif
ESP_ERROR_CHECK(gpio_hold_en(gpio_idx)); ESP_ERROR_CHECK(gpio_hold_en(gpio_idx));
} }
// Clear state from previous wakeup // Clear state from previous wakeup