rt-thread-official/bsp/stm32f40x/drivers/stm32f4_rtc.h

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/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
* Change Logs:
* Date Author Notes
* 2015-09-29 FlyM the first version
*/
#ifndef __STM32F4_RTC_H__
#define __STM32F4_RTC_H__
#define RTC_CLOCK_SOURCE_LSE
void rt_hw_rtc_init(void);
#endif