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82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
// Copyright 2018 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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//
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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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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "esp_system.h"
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#define MWDT0_TICK_PRESCALER 40000
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#define MWDT0_TICKS_PER_US 500
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#define MWDT1_TICK_PRESCALER 40000
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#define MWDT1_TICKS_PER_US 500
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/**
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* @brief Internal function to restart PRO and APP CPUs.
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*
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* @note This function should not be called from FreeRTOS applications.
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* Use esp_restart instead.
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*
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* This is an internal function called by esp_restart. It is called directly
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* by the panic handler and brownout detector interrupt.
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*/
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void esp_restart_noos(void) __attribute__ ((noreturn));
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/**
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* @brief Similar to esp_restart_noos, but resets all the digital peripherals.
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*/
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void esp_restart_noos_dig(void) __attribute__ ((noreturn));
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/**
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* @brief Internal function to set reset reason hint
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*
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* The hint is used do distinguish different reset reasons when software reset
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* is performed.
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*
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* The hint is stored in RTC store register, RTC_RESET_CAUSE_REG.
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*
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* @param hint Desired esp_reset_reason_t value for the real reset reason
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*/
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void esp_reset_reason_set_hint(esp_reset_reason_t hint);
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/**
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* @brief Internal function to get the reset hint value
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* @return - Reset hint value previously stored into RTC_RESET_CAUSE_REG using
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* esp_reset_reason_set_hint function
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* - ESP_RST_UNKNOWN if the value in RTC_RESET_CAUSE_REG is invalid
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*/
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esp_reset_reason_t esp_reset_reason_get_hint(void);
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/**
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* @brief Get the time in microseconds since startup
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*
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* @returns time since g_startup_time; definition should be fixed by system time provider
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* no matter the underlying timer used.
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*/
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int64_t esp_system_get_time(void);
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/**
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* @brief Get the resolution of the time returned by `esp_system_get_time`.
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*
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* @returns the resolution in nanoseconds
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*/
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uint32_t esp_system_get_time_resolution(void);
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#ifdef __cplusplus
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}
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#endif
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