102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
// Copyright 2020-2021 Beken
|
|
//
|
|
// 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 <common/bk_include.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* @brief Overview about this API header
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* @brief Get calibrated 32k clock frequency
|
|
*
|
|
* This API 26m digital clock measurement 32k analog clock.
|
|
*
|
|
* @return
|
|
* - alibrated 32k clock frequency value.
|
|
*/
|
|
double bk_rosc_32k_get_freq(void);
|
|
|
|
/**
|
|
* @brief Get calibrated 32k clock ppm
|
|
*
|
|
* This API tells the current clock ppm of rc32k.
|
|
*
|
|
* @return
|
|
* - alibrated 32k clock ppm value.
|
|
*/
|
|
bk_err_t bk_rosc_32k_get_ppm(void);
|
|
|
|
/**
|
|
* @brief Perform 32k frequency measurement
|
|
*
|
|
* This API 26m digital clock measurement 32k analog clock.
|
|
*
|
|
* @param count number of clock cycles
|
|
*
|
|
* @return
|
|
* - BK_OK: succeed
|
|
* - others: other errors.
|
|
*/
|
|
bk_err_t bk_rosc_32k_ckest_prog(uint32_t count);
|
|
|
|
/**
|
|
* @brief Perform 32k frequency calibration
|
|
*
|
|
* This API start a thread to calibrate the rosc clock to 32K which will cost about 100ms to finish.
|
|
* If the calibration fail, rc32k will be set to trig mode.
|
|
*
|
|
* @return
|
|
* - BK_OK: succeed
|
|
* - others: other errors.
|
|
*/
|
|
bk_err_t bk_rosc_32k_calib(void);
|
|
|
|
/**
|
|
* @brief Get tick diff for rtc tick compensation
|
|
*
|
|
* This API tells the current tick diff for compensation.
|
|
*
|
|
* @param tick current tick value
|
|
*
|
|
* @return
|
|
* - tick diff value.
|
|
*/
|
|
int64_t bk_rosc_32k_get_tick_diff(uint64_t tick);
|
|
|
|
/**
|
|
* @brief Get time diff for mac time compensation
|
|
*
|
|
* This API tells the current time diff for compensation.
|
|
*
|
|
* @return
|
|
* - time diff value.
|
|
*/
|
|
int64_t bk_rosc_32k_get_time_diff(void);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|