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220 lines
7.2 KiB
C
220 lines
7.2 KiB
C
// Copyright 2010-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _ROM_RTC_H_
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#define _ROM_RTC_H_
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#include "ets_sys.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include "soc/soc.h"
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#include "soc/rtc_cntl_reg.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \defgroup rtc_apis, rtc registers and memory related apis
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* @brief rtc apis
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*/
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/** @addtogroup rtc_apis
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* @{
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*/
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/**************************************************************************************
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* Note: *
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* Some Rtc memory and registers are used, in ROM or in internal library. *
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* Please do not use reserved or used rtc memory or registers. *
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* *
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*************************************************************************************
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* RTC Memory & Store Register usage
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*************************************************************************************
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* rtc memory addr type size usage
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* 0x3ff61000(0x50000000) Slow SIZE_CP Co-Processor code/Reset Entry
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* 0x3ff61000+SIZE_CP Slow 8192-SIZE_CP
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*
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* 0x3ff80000(0x400c0000) Fast 8192 deep sleep entry code
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*
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*************************************************************************************
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* RTC store registers usage
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* RTC_CNTL_STORE0_REG Reserved
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* RTC_CNTL_STORE1_REG RTC_SLOW_CLK calibration value
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* RTC_CNTL_STORE2_REG Boot time, low word
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* RTC_CNTL_STORE3_REG Boot time, high word
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* RTC_CNTL_STORE4_REG External XTAL frequency. The frequency must necessarily be even, otherwise there will be a conflict with the low bit, which is used to disable logs in the ROM code.
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* RTC_CNTL_STORE5_REG APB bus frequency
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* RTC_CNTL_STORE6_REG FAST_RTC_MEMORY_ENTRY
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* RTC_CNTL_STORE7_REG FAST_RTC_MEMORY_CRC
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*************************************************************************************
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*/
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#define RTC_SLOW_CLK_CAL_REG RTC_CNTL_STORE1_REG
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#define RTC_BOOT_TIME_LOW_REG RTC_CNTL_STORE2_REG
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#define RTC_BOOT_TIME_HIGH_REG RTC_CNTL_STORE3_REG
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#define RTC_XTAL_FREQ_REG RTC_CNTL_STORE4_REG
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#define RTC_APB_FREQ_REG RTC_CNTL_STORE5_REG
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#define RTC_ENTRY_ADDR_REG RTC_CNTL_STORE6_REG
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#define RTC_RESET_CAUSE_REG RTC_CNTL_STORE6_REG
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#define RTC_MEMORY_CRC_REG RTC_CNTL_STORE7_REG
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#define RTC_DISABLE_ROM_LOG ((1 << 0) | (1 << 16)) //!< Disable logging from the ROM code.
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typedef enum {
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AWAKE = 0, //<CPU ON
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LIGHT_SLEEP = BIT0, //CPU waiti, PLL ON. We don't need explicitly set this mode.
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DEEP_SLEEP = BIT1 //CPU OFF, PLL OFF, only specific timer could wake up
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} SLEEP_MODE;
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typedef enum {
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NO_MEAN = 0,
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POWERON_RESET = 1, /**<1, Vbat power on reset*/
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SW_RESET = 3, /**<3, Software reset digital core*/
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OWDT_RESET = 4, /**<4, Legacy watch dog reset digital core*/
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DEEPSLEEP_RESET = 5, /**<3, Deep Sleep reset digital core*/
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SDIO_RESET = 6, /**<6, Reset by SLC module, reset digital core*/
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TG0WDT_SYS_RESET = 7, /**<7, Timer Group0 Watch dog reset digital core*/
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TG1WDT_SYS_RESET = 8, /**<8, Timer Group1 Watch dog reset digital core*/
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RTCWDT_SYS_RESET = 9, /**<9, RTC Watch dog Reset digital core*/
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INTRUSION_RESET = 10, /**<10, Instrusion tested to reset CPU*/
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TGWDT_CPU_RESET = 11, /**<11, Time Group reset CPU*/
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SW_CPU_RESET = 12, /**<12, Software reset CPU*/
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RTCWDT_CPU_RESET = 13, /**<13, RTC Watch dog Reset CPU*/
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EXT_CPU_RESET = 14, /**<14, for APP CPU, reseted by PRO CPU*/
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RTCWDT_BROWN_OUT_RESET = 15, /**<15, Reset when the vdd voltage is not stable*/
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RTCWDT_RTC_RESET = 16 /**<16, RTC Watch dog reset digital core and rtc module*/
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} RESET_REASON;
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typedef enum {
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NO_SLEEP = 0,
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EXT_EVENT0_TRIG = BIT0,
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EXT_EVENT1_TRIG = BIT1,
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GPIO_TRIG = BIT2,
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TIMER_EXPIRE = BIT3,
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SDIO_TRIG = BIT4,
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MAC_TRIG = BIT5,
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UART0_TRIG = BIT6,
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UART1_TRIG = BIT7,
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TOUCH_TRIG = BIT8,
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SAR_TRIG = BIT9,
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BT_TRIG = BIT10
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} WAKEUP_REASON;
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typedef enum {
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DISEN_WAKEUP = NO_SLEEP,
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EXT_EVENT0_TRIG_EN = EXT_EVENT0_TRIG,
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EXT_EVENT1_TRIG_EN = EXT_EVENT1_TRIG,
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GPIO_TRIG_EN = GPIO_TRIG,
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TIMER_EXPIRE_EN = TIMER_EXPIRE,
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SDIO_TRIG_EN = SDIO_TRIG,
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MAC_TRIG_EN = MAC_TRIG,
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UART0_TRIG_EN = UART0_TRIG,
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UART1_TRIG_EN = UART1_TRIG,
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TOUCH_TRIG_EN = TOUCH_TRIG,
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SAR_TRIG_EN = SAR_TRIG,
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BT_TRIG_EN = BT_TRIG
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} WAKEUP_ENABLE;
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typedef enum {
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NO_INT = 0,
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WAKEUP_INT = BIT0,
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REJECT_INT = BIT1,
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SDIO_IDLE_INT = BIT2,
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RTC_WDT_INT = BIT3,
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RTC_TIME_VALID_INT = BIT4
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} RTC_INT_REASON;
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typedef enum {
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DISEN_INT = 0,
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WAKEUP_INT_EN = WAKEUP_INT,
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REJECT_INT_EN = REJECT_INT,
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SDIO_IDLE_INT_EN = SDIO_IDLE_INT,
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RTC_WDT_INT_EN = RTC_WDT_INT,
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RTC_TIME_VALID_INT_EN = RTC_TIME_VALID_INT
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} RTC_INT_EN;
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/**
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* @brief Get the reset reason for CPU.
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*
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* @param int cpu_no : CPU no.
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*
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* @return RESET_REASON
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*/
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RESET_REASON rtc_get_reset_reason(int cpu_no);
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/**
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* @brief Get the wakeup cause for CPU.
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*
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* @param int cpu_no : CPU no.
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*
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* @return WAKEUP_REASON
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*/
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WAKEUP_REASON rtc_get_wakeup_cause(void);
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/**
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* @brief Get CRC for Fast RTC Memory.
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*
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* @param uint32_t start_addr : 0 - 0x7ff for Fast RTC Memory.
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*
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* @param uint32_t crc_len : 0 - 0x7ff, 0 for 4 byte, 0x7ff for 0x2000 byte.
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*
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* @return uint32_t : CRC32 result
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*/
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uint32_t calc_rtc_memory_crc(uint32_t start_addr, uint32_t crc_len);
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/**
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* @brief Set CRC of Fast RTC memory 0-0x7ff into RTC STORE7.
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*
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* @param None
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*
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* @return None
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*/
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void set_rtc_memory_crc(void);
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/**
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* @brief Software Reset digital core.
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*
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* It is not recommended to use this function in esp-idf, use
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* esp_restart() instead.
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*
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* @param None
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*
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* @return None
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*/
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void __attribute__((noreturn)) software_reset(void);
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/**
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* @brief Software Reset digital core.
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*
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* It is not recommended to use this function in esp-idf, use
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* esp_restart() instead.
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*
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* @param int cpu_no : The CPU to reset, 0 for PRO CPU, 1 for APP CPU.
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*
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* @return None
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*/
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void software_reset_cpu(int cpu_no);
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ROM_RTC_H_ */
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