esp-idf/components/esp32s2/include/esp32s2/rtc.h
2020-08-10 15:11:38 +08:00

40 lines
1.0 KiB
C

// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file esp32s2/rtc.h
*
* This file contains declarations of rtc related functions.
*/
/**
* @brief Get current value of RTC counter in microseconds
*
* Note: this function may take up to 1 RTC_SLOW_CLK cycle to execute
*
* @return current value of RTC counter in microseconds
*/
uint64_t esp_rtc_get_time_us(void);
#ifdef __cplusplus
}
#endif