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fix(uart): reduce current consumption in sleep mode

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This commit is contained in:
Song Ruo Jing
2026-09-03 16:03:19 +08:00
parent 82564356d0
commit 052731a91a
3 changed files with 23 additions and 15 deletions
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components/esp_hw_support/sleep_gpio.c
+16 -10
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@@ -130,6 +130,21 @@ void esp_sleep_config_gpio_isolate(void)
}
}
#if CONFIG_ESP_CONSOLE_UART
#if CONFIG_ESP_CONSOLE_UART_CUSTOM
const gpio_num_t uart_tx_gpio = (CONFIG_ESP_CONSOLE_UART_TX_GPIO >= 0) ? CONFIG_ESP_CONSOLE_UART_TX_GPIO : U0TXD_GPIO_NUM;
const gpio_num_t uart_rx_gpio = (CONFIG_ESP_CONSOLE_UART_RX_GPIO >= 0) ? CONFIG_ESP_CONSOLE_UART_RX_GPIO : U0RXD_GPIO_NUM;
#else
const gpio_num_t uart_tx_gpio = U0TXD_GPIO_NUM;
const gpio_num_t uart_rx_gpio = U0RXD_GPIO_NUM;
#endif
// Pull up TX and RX lines to avoid garbled data during sleep
gpio_sleep_set_pull_mode(uart_tx_gpio, GPIO_PULLUP_ONLY);
gpio_sleep_set_pull_mode(uart_rx_gpio, GPIO_PULLUP_ONLY);
// TX pin can be isolated, but RX pin may be used for wakeup, so configure RX pin as input
gpio_sleep_set_direction(uart_rx_gpio, GPIO_MODE_INPUT);
#endif
#if CONFIG_ESP_SLEEP_MSPI_NEED_ALL_IO_PU && !SOC_MSPI_HAS_INDEPENT_IOMUX
gpio_sleep_set_pull_mode(esp_mspi_get_io(ESP_MSPI_IO_CLK), GPIO_PULLUP_ONLY);
gpio_sleep_set_pull_mode(esp_mspi_get_io(ESP_MSPI_IO_Q), GPIO_PULLUP_ONLY);
@@ -157,16 +172,7 @@ void esp_sleep_enable_gpio_switch(bool enable)
ESP_EARLY_LOGI(TAG, "%s automatic switching of GPIO sleep configuration", enable ? "Enable" : "Disable");
uint64_t gpio_sleep_sel_dis_mask = 0;
#if CONFIG_ESP_CONSOLE_UART
#if CONFIG_ESP_CONSOLE_UART_CUSTOM
const gpio_num_t uart_tx_gpio = (CONFIG_ESP_CONSOLE_UART_TX_GPIO >= 0) ? CONFIG_ESP_CONSOLE_UART_TX_GPIO : U0TXD_GPIO_NUM;
const gpio_num_t uart_rx_gpio = (CONFIG_ESP_CONSOLE_UART_RX_GPIO >= 0) ? CONFIG_ESP_CONSOLE_UART_RX_GPIO : U0RXD_GPIO_NUM;
#else
const gpio_num_t uart_tx_gpio = U0TXD_GPIO_NUM;
const gpio_num_t uart_rx_gpio = U0RXD_GPIO_NUM;
#endif
gpio_sleep_sel_dis_mask |= BIT64(uart_tx_gpio) | BIT64(uart_rx_gpio);
#endif
/* If the PSRAM is disable in ESP32xx chips equipped with PSRAM, there will be a large current leakage. */
#if CONFIG_ESP_SLEEP_PSRAM_LEAKAGE_WORKAROUND && CONFIG_SPIRAM & !SOC_MSPI_HAS_INDEPENT_IOMUX
const gpio_num_t psram_cs_gpio = (gpio_num_t)esp_mspi_get_io(ESP_MSPI_IO_CS1);