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feat(esp_hw_support): support enable analog lowpower mode by API

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Closes https://github.com/espressif/esp-idf/issues/7882
This commit is contained in:
wuzhenghui
2025-06-08 11:28:57 +08:00
parent 0fa5b07c7e
commit e55d6d8b3c
7 changed files with 56 additions and 5 deletions
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7
components/ulp/ulp_fsm/ulp.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2010-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2010-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -74,10 +74,7 @@ esp_err_t ulp_run(uint32_t entry_point)
CLEAR_PERI_REG_MASK(SENS_SAR_START_FORCE_REG, SENS_ULP_CP_FORCE_START_TOP_M);
// set time until wakeup is allowed to the smallest possible
REG_SET_FIELD(RTC_CNTL_TIMER5_REG, RTC_CNTL_MIN_SLP_VAL, RTC_CNTL_MIN_SLP_VAL_MIN);
// make sure voltage is raised when RTC 8MCLK is enabled
SET_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, RTC_CNTL_BIAS_I2C_FOLW_8M);
SET_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, RTC_CNTL_BIAS_CORE_FOLW_8M);
SET_PERI_REG_MASK(RTC_CNTL_OPTIONS0_REG, RTC_CNTL_BIAS_SLEEP_FOLW_8M);
// enable ULP timer
SET_PERI_REG_MASK(RTC_CNTL_STATE0_REG, RTC_CNTL_ULP_CP_SLP_TIMER_EN);
#else