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/********************************************************************************************************//** |
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* @file rtc_driver.c |
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* |
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* @brief File containing the APIs for configuring the RTC peripheral. |
| 5 |
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* |
| 6 |
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* Public Functions: |
| 7 |
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* - void RTC_PerClkCtrl(uint8_t en_or_di) |
| 8 |
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* - void RTC_ClkSource(RTC_ClkSource_t clk_source) |
| 9 |
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* - void RTC_Init(RTC_Config_t RTC_Cfg) |
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* - void RTC_SetTime(RTC_Time_t time) |
| 11 |
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* - void RTC_GetTime(RTC_Time_t* time) |
| 12 |
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* - void RTC_SetDate(RTC_Date_t date) |
| 13 |
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* - void RTC_GetDate(RTC_Date_t* date) |
| 14 |
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* - void RTC_ClearRSF(void) |
| 15 |
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* - uint8_t RTC_GetRSF(void) |
| 16 |
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* - void RTC_SetAlarm(RTC_Alarm_t alarm) |
| 17 |
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* - void RTC_GetAlarm(RTC_Alarm_t* alarm) |
| 18 |
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* - uint8_t RTC_CheckAlarm(RTC_AlarmSel_t alarm) |
| 19 |
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* - uint8_t RTC_ClearAlarm(RTC_AlarmSel_t alarm) |
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* - uint8_t RTC_DisableAlarm(RTC_AlarmSel_t alarm) |
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* - void RTC_Alarm_IRQHandling(void) |
| 22 |
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* - void RTC_AlarmEventCallback(RTC_AlarmSel_t alarm) |
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* |
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* @note |
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* For further information about functions refer to the corresponding header file. |
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*/ |
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#include "rtc_driver.h" |
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#include "stm32f446xx.h" |
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#include <stdint.h> |
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| 32 |
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/***********************************************************************************************************/ |
| 33 |
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/* Static Function Prototypes */ |
| 34 |
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/***********************************************************************************************************/ |
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| 36 |
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/** |
| 37 |
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* @brief Function for unlocking the RTC write protected registers. |
| 38 |
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* @return void. |
| 39 |
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*/ |
| 40 |
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static void RTC_Unlock(void); |
| 41 |
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| 42 |
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/** |
| 43 |
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* @brief Function for entering in configuration mode for the RTC. |
| 44 |
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* @return void. |
| 45 |
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*/ |
| 46 |
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static void RTC_EnterConfig(void); |
| 47 |
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| 48 |
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/** |
| 49 |
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* @brief Function for exiting from configuration mode for the RTC. |
| 50 |
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* @return void. |
| 51 |
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*/ |
| 52 |
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static void RTC_ExitConfig(void); |
| 53 |
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| 54 |
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/***********************************************************************************************************/ |
| 55 |
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/* Public API Definitions */ |
| 56 |
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/***********************************************************************************************************/ |
| 57 |
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| 58 |
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✗ |
void RTC_PerClkCtrl(uint8_t en_or_di){ |
| 59 |
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| 60 |
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✗ |
if(en_or_di == ENABLE){ |
| 61 |
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✗ |
RTC_PCLK_EN(); |
| 62 |
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} |
| 63 |
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else{ |
| 64 |
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✗ |
RTC_PCLK_DI(); |
| 65 |
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} |
| 66 |
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} |
| 67 |
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| 68 |
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✗ |
void RTC_ClkSource(RTC_ClkSource_t clk_source){ |
| 69 |
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| 70 |
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/* Disable backup protection */ |
| 71 |
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✗ |
PWR_PCLK_EN(); |
| 72 |
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✗ |
PWR->CR |= (1 << PWR_CR_DBP); |
| 73 |
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| 74 |
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✗ |
RCC->BDCR &= ~(0x3 << RCC_BDCR_RTCSEL); |
| 75 |
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✗ |
RCC->BDCR |= (clk_source << RCC_BDCR_RTCSEL); |
| 76 |
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} |
| 77 |
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| 78 |
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✗ |
void RTC_Init(RTC_Config_t RTC_Cfg){ |
| 79 |
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| 80 |
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✗ |
uint32_t temp = 0; |
| 81 |
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| 82 |
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✗ |
RTC_Unlock(); |
| 83 |
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✗ |
RTC_EnterConfig(); |
| 84 |
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| 85 |
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/* Set hours format */ |
| 86 |
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✗ |
RTC->CR &= ~(1 << RTC_CR_FMT); |
| 87 |
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✗ |
RTC->CR |= (RTC_Cfg.RTC_HoursFormat << RTC_CR_FMT); |
| 88 |
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| 89 |
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✗ |
temp |= ((RTC_Cfg.RTC_Time.SecondUnits << RTC_TR_SU) | |
| 90 |
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✗ |
(RTC_Cfg.RTC_Time.SecondTens << RTC_TR_ST) | |
| 91 |
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✗ |
(RTC_Cfg.RTC_Time.MinuteUnits << RTC_TR_MNU) | |
| 92 |
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✗ |
(RTC_Cfg.RTC_Time.MinuteTens << RTC_TR_MNT) | |
| 93 |
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✗ |
(RTC_Cfg.RTC_Time.HourUnits << RTC_TR_HU) | |
| 94 |
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✗ |
(RTC_Cfg.RTC_Time.HourTens << RTC_TR_HT) | |
| 95 |
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✗ |
(RTC_Cfg.RTC_Time.PM << RTC_TR_PM)); |
| 96 |
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| 97 |
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/* Set time */ |
| 98 |
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✗ |
RTC->TR &= ~(0xFFFFFFFF); |
| 99 |
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✗ |
RTC->TR = temp; |
| 100 |
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| 101 |
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✗ |
temp = 0; |
| 102 |
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✗ |
temp |= ((RTC_Cfg.RTC_Date.DateUnits << RTC_DR_DU) | |
| 103 |
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✗ |
(RTC_Cfg.RTC_Date.DateTens << RTC_DR_DT) | |
| 104 |
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✗ |
(RTC_Cfg.RTC_Date.MonthUnits << RTC_DR_MU) | |
| 105 |
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✗ |
(RTC_Cfg.RTC_Date.MonthTens << RTC_DR_MT) | |
| 106 |
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✗ |
(RTC_Cfg.RTC_Date.WeekDayUnits << RTC_DR_WDU) | |
| 107 |
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✗ |
(RTC_Cfg.RTC_Date.YearUnits << RTC_DR_YU) | |
| 108 |
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✗ |
(RTC_Cfg.RTC_Date.YearTens << RTC_DR_YT)); |
| 109 |
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| 110 |
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/* Set date */ |
| 111 |
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✗ |
RTC->DR &= ~(0xFFFFFFFF); |
| 112 |
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✗ |
RTC->DR = temp; |
| 113 |
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| 114 |
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✗ |
RTC_ExitConfig(); |
| 115 |
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} |
| 116 |
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| 117 |
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✗ |
void RTC_SetTime(RTC_Time_t time){ |
| 118 |
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| 119 |
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✗ |
uint32_t temp = 0; |
| 120 |
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| 121 |
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✗ |
temp |= ((time.SecondUnits << RTC_TR_SU) | |
| 122 |
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✗ |
(time.SecondTens << RTC_TR_ST) | |
| 123 |
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✗ |
(time.MinuteUnits << RTC_TR_MNU) | |
| 124 |
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✗ |
(time.MinuteTens << RTC_TR_MNT) | |
| 125 |
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✗ |
(time.HourUnits << RTC_TR_HU) | |
| 126 |
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✗ |
(time.HourTens << RTC_TR_HT) | |
| 127 |
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✗ |
(time.PM << RTC_TR_PM)); |
| 128 |
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| 129 |
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✗ |
RTC_Unlock(); |
| 130 |
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✗ |
RTC_EnterConfig(); |
| 131 |
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| 132 |
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/* Set time */ |
| 133 |
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✗ |
RTC->TR &= ~(0xFFFFFFFF); |
| 134 |
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✗ |
RTC->TR = temp; |
| 135 |
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| 136 |
|
✗ |
RTC_ExitConfig(); |
| 137 |
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} |
| 138 |
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| 139 |
|
✗ |
void RTC_GetTime(RTC_Time_t* time){ |
| 140 |
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| 141 |
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✗ |
time->SecondUnits = (RTC->TR >> RTC_TR_SU) & 0xF; |
| 142 |
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✗ |
time->SecondTens = (RTC->TR >> RTC_TR_ST) & 0x7; |
| 143 |
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✗ |
time->MinuteUnits = (RTC->TR >> RTC_TR_MNU) & 0xF; |
| 144 |
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✗ |
time->MinuteTens = (RTC->TR >> RTC_TR_MNT) & 0x7; |
| 145 |
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✗ |
time->HourUnits = (RTC->TR >> RTC_TR_HU) & 0xF; |
| 146 |
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✗ |
time->HourTens = (RTC->TR >> RTC_TR_HT) & 0x3; |
| 147 |
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✗ |
time->PM = (RTC->TR >> RTC_TR_PM) & 0x1; |
| 148 |
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} |
| 149 |
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| 150 |
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✗ |
void RTC_SetDate(RTC_Date_t date){ |
| 151 |
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| 152 |
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✗ |
uint32_t temp = 0; |
| 153 |
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| 154 |
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temp |= ((date.DateUnits << RTC_DR_DU) | |
| 155 |
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✗ |
(date.DateTens << RTC_DR_DT) | |
| 156 |
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✗ |
(date.MonthUnits << RTC_DR_MU) | |
| 157 |
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✗ |
(date.MonthTens << RTC_DR_MT) | |
| 158 |
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(date.WeekDayUnits << RTC_DR_WDU) | |
| 159 |
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✗ |
(date.YearUnits << RTC_DR_YU) | |
| 160 |
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✗ |
(date.YearTens << RTC_DR_YT)); |
| 161 |
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| 162 |
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✗ |
RTC_Unlock(); |
| 163 |
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✗ |
RTC_EnterConfig(); |
| 164 |
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| 165 |
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/* Set date */ |
| 166 |
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✗ |
RTC->DR &= ~(0xFFFFFFFF); |
| 167 |
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✗ |
RTC->DR = temp; |
| 168 |
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| 169 |
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✗ |
RTC_ExitConfig(); |
| 170 |
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} |
| 171 |
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| 172 |
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✗ |
void RTC_GetDate(RTC_Date_t* date){ |
| 173 |
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| 174 |
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✗ |
date->DateUnits = (RTC->DR >> RTC_DR_DU) & 0xF; |
| 175 |
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✗ |
date->DateTens = (RTC->DR >> RTC_DR_DT) & 0x3; |
| 176 |
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✗ |
date->WeekDayUnits = (RTC->DR >> RTC_DR_WDU) & 0x7; |
| 177 |
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✗ |
date->MonthUnits = (RTC->DR >> RTC_DR_MU) & 0xF; |
| 178 |
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✗ |
date->MonthTens = (RTC->DR >> RTC_DR_MT) & 0x1; |
| 179 |
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✗ |
date->YearUnits = (RTC->DR >> RTC_DR_YU) & 0xF; |
| 180 |
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✗ |
date->YearTens = (RTC->DR >> RTC_DR_YT) & 0xF; |
| 181 |
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} |
| 182 |
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| 183 |
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✗ |
void RTC_ClearRSF(void){ |
| 184 |
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| 185 |
|
✗ |
RTC_Unlock(); |
| 186 |
|
✗ |
RTC->ISR &= ~(1 << RTC_ISR_RSF); |
| 187 |
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} |
| 188 |
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| 189 |
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✗ |
uint8_t RTC_GetRSF(void){ |
| 190 |
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| 191 |
|
✗ |
uint8_t ret = 0; |
| 192 |
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| 193 |
|
✗ |
if(RTC->ISR & (1 << RTC_ISR_RSF)){ |
| 194 |
|
✗ |
ret = 1; |
| 195 |
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} |
| 196 |
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| 197 |
|
✗ |
return ret; |
| 198 |
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} |
| 199 |
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| 200 |
|
✗ |
void RTC_SetAlarm(RTC_Alarm_t alarm){ |
| 201 |
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| 202 |
|
✗ |
uint32_t temp = 0; |
| 203 |
|
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|
| 204 |
|
✗ |
temp |= ((alarm.DateMask << RTC_ALRMxR_MSK4) | |
| 205 |
|
✗ |
(alarm.WeekDaySelec << RTC_ALRMxR_WDSEL) | |
| 206 |
|
✗ |
(alarm.DateTens << RTC_ALRMxR_DT) | |
| 207 |
|
✗ |
(alarm.DateUnits << RTC_ALRMxR_DU) | |
| 208 |
|
✗ |
(alarm.HoursMask << RTC_ALRMxR_MSK3) | |
| 209 |
|
✗ |
(alarm.PM << RTC_ALRMxR_PM) | |
| 210 |
|
✗ |
(alarm.HourTens << RTC_ALRMxR_HT) | |
| 211 |
|
✗ |
(alarm.HourUnits << RTC_ALRMxR_HU) | |
| 212 |
|
✗ |
(alarm.MinutesMask << RTC_ALRMxR_MSK2) | |
| 213 |
|
✗ |
(alarm.MinuteTens << RTC_ALRMxR_MNT) | |
| 214 |
|
✗ |
(alarm.MinuteUnits << RTC_ALRMxR_MNU) | |
| 215 |
|
✗ |
(alarm.SecondsMask << RTC_ALRMxR_MSK1) | |
| 216 |
|
✗ |
(alarm.SecondTens << RTC_ALRMxR_ST) | |
| 217 |
|
✗ |
(alarm.SecondUnits << RTC_ALRMxR_SU)); |
| 218 |
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| 219 |
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/* Configure and enable the EXTI Line 17 in interrupt mode and select the rising edge sensitivity */ |
| 220 |
|
✗ |
if(alarm.IRQ == 1){ |
| 221 |
|
✗ |
EXTI->IMR |= (1 << 17); |
| 222 |
|
✗ |
EXTI->RTSR |= (1 << 17); |
| 223 |
|
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} |
| 224 |
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|
| 225 |
|
✗ |
RTC_Unlock(); |
| 226 |
|
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|
| 227 |
|
✗ |
switch(alarm.AlarmSel){ |
| 228 |
|
✗ |
case RTC_ALARM_A: |
| 229 |
|
|
/* Clear ALRAE in RTC_CR register to disable Alarm A */ |
| 230 |
|
✗ |
RTC->CR &= ~(1 << RTC_CR_ALRAE); |
| 231 |
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|
/* Poll ALRAWF in RTC_ISR until it is set to make sure the access to alarm reg is allowed */ |
| 232 |
|
✗ |
while(!(RTC->ISR & (1 << RTC_ISR_ALRAWF))); |
| 233 |
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|
/* Set alarm A values */ |
| 234 |
|
✗ |
RTC->ALRMAR &= ~(0xFFFFFFFF); |
| 235 |
|
✗ |
RTC->ALRMAR = temp; |
| 236 |
|
|
/* Set ALRAE in the RTC_CR register to enable Alarm A */ |
| 237 |
|
✗ |
RTC->CR |= (1 << RTC_CR_ALRAE); |
| 238 |
|
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/* Set ALRAIE in the RTC CR register to enable Alarm A interrupt */ |
| 239 |
|
✗ |
if(alarm.IRQ == 1){ |
| 240 |
|
✗ |
RTC->CR |= (1 << RTC_CR_ALRAIE); |
| 241 |
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|
} |
| 242 |
|
✗ |
break; |
| 243 |
|
✗ |
case RTC_ALARM_B: |
| 244 |
|
|
/* Clear ALRBE in RTC_CR register to disable Alarm B */ |
| 245 |
|
✗ |
RTC->CR &= ~(1 << RTC_CR_ALRBE); |
| 246 |
|
|
/* Poll ALRBWF in RTC_ISR until it is set to make sure the access to alarm reg is allowed */ |
| 247 |
|
✗ |
while(!(RTC->ISR & (1 << RTC_ISR_ALRBWF))); |
| 248 |
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/* Set alarm B values */ |
| 249 |
|
✗ |
RTC->ALRMBR &= ~(0xFFFFFFFF); |
| 250 |
|
✗ |
RTC->ALRMBR = temp; |
| 251 |
|
|
/* Set ALRBE in the RTC_CR register to enable Alarm B */ |
| 252 |
|
✗ |
RTC->CR |= (1 << RTC_CR_ALRBE); |
| 253 |
|
|
/* Set ALRBIE in the RTC CR register to enable Alarm B interrupt */ |
| 254 |
|
✗ |
if(alarm.IRQ == 1){ |
| 255 |
|
✗ |
RTC->CR |= (1 << RTC_CR_ALRBIE); |
| 256 |
|
|
} |
| 257 |
|
✗ |
break; |
| 258 |
|
✗ |
default: |
| 259 |
|
✗ |
break; |
| 260 |
|
|
} |
| 261 |
|
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} |
| 262 |
|
|
|
| 263 |
|
✗ |
void RTC_GetAlarm(RTC_Alarm_t* alarm){ |
| 264 |
|
|
|
| 265 |
|
|
uint32_t alarm_reg; |
| 266 |
|
|
|
| 267 |
|
✗ |
switch(alarm->AlarmSel){ |
| 268 |
|
✗ |
case RTC_ALARM_A: |
| 269 |
|
✗ |
alarm_reg = RTC->ALRMAR; |
| 270 |
|
✗ |
break; |
| 271 |
|
✗ |
case RTC_ALARM_B: |
| 272 |
|
✗ |
alarm_reg = RTC->ALRMBR; |
| 273 |
|
✗ |
break; |
| 274 |
|
✗ |
default: |
| 275 |
|
✗ |
break; |
| 276 |
|
|
} |
| 277 |
|
|
|
| 278 |
|
✗ |
alarm->DateMask = (alarm_reg >> RTC_ALRMxR_MSK4) & 0x1; |
| 279 |
|
✗ |
alarm->WeekDaySelec = (alarm_reg >> RTC_ALRMxR_WDSEL) & 0x1; |
| 280 |
|
✗ |
alarm->DateTens = (alarm_reg >> RTC_ALRMxR_DT) & 0x3; |
| 281 |
|
✗ |
alarm->DateUnits = (alarm_reg >> RTC_ALRMxR_DU) & 0xF; |
| 282 |
|
✗ |
alarm->HoursMask = (alarm_reg >> RTC_ALRMxR_MSK3) & 0x1; |
| 283 |
|
✗ |
alarm->PM = (alarm_reg >> RTC_ALRMxR_PM) & 0x1; |
| 284 |
|
✗ |
alarm->HourTens = (alarm_reg >> RTC_ALRMxR_HT) & 0x3; |
| 285 |
|
✗ |
alarm->HourUnits = (alarm_reg >> RTC_ALRMxR_HU) & 0xF; |
| 286 |
|
✗ |
alarm->MinutesMask = (alarm_reg >> RTC_ALRMxR_MSK2) & 0x1; |
| 287 |
|
✗ |
alarm->MinuteTens = (alarm_reg >> RTC_ALRMxR_MNT) & 0x7; |
| 288 |
|
✗ |
alarm->MinuteUnits = (alarm_reg >> RTC_ALRMxR_MNU) & 0xF; |
| 289 |
|
✗ |
alarm->SecondsMask = (alarm_reg >> RTC_ALRMxR_MSK1) & 0x1; |
| 290 |
|
✗ |
alarm->SecondTens = (alarm_reg >> RTC_ALRMxR_ST) & 0x7; |
| 291 |
|
✗ |
alarm->SecondUnits = (alarm_reg >> RTC_ALRMxR_SU) & 0xF; |
| 292 |
|
|
} |
| 293 |
|
|
|
| 294 |
|
✗ |
uint8_t RTC_CheckAlarm(RTC_AlarmSel_t alarm){ |
| 295 |
|
|
|
| 296 |
|
✗ |
uint8_t ret = 0; |
| 297 |
|
|
|
| 298 |
|
✗ |
switch(alarm){ |
| 299 |
|
✗ |
case RTC_ALARM_A: |
| 300 |
|
✗ |
if(RTC->ISR & (1 << RTC_ISR_ALRAF)){ |
| 301 |
|
✗ |
ret = 1; |
| 302 |
|
|
} |
| 303 |
|
✗ |
break; |
| 304 |
|
✗ |
case RTC_ALARM_B: |
| 305 |
|
✗ |
if(RTC->ISR & (1 << RTC_ISR_ALRBF)){ |
| 306 |
|
✗ |
ret = 1; |
| 307 |
|
|
} |
| 308 |
|
✗ |
break; |
| 309 |
|
✗ |
default: |
| 310 |
|
✗ |
ret = 2; |
| 311 |
|
✗ |
break; |
| 312 |
|
|
} |
| 313 |
|
|
|
| 314 |
|
✗ |
return ret; |
| 315 |
|
|
} |
| 316 |
|
|
|
| 317 |
|
✗ |
uint8_t RTC_ClearAlarm(RTC_AlarmSel_t alarm){ |
| 318 |
|
|
|
| 319 |
|
✗ |
uint8_t ret = 0; |
| 320 |
|
|
|
| 321 |
|
✗ |
switch(alarm){ |
| 322 |
|
✗ |
case RTC_ALARM_A: |
| 323 |
|
✗ |
RTC->ISR &= ~(1 << RTC_ISR_ALRAF); |
| 324 |
|
✗ |
break; |
| 325 |
|
✗ |
case RTC_ALARM_B: |
| 326 |
|
✗ |
RTC->ISR &= ~(1 << RTC_ISR_ALRBF); |
| 327 |
|
✗ |
break; |
| 328 |
|
✗ |
default: |
| 329 |
|
✗ |
ret = 1; |
| 330 |
|
✗ |
break; |
| 331 |
|
|
} |
| 332 |
|
|
|
| 333 |
|
✗ |
return ret; |
| 334 |
|
|
} |
| 335 |
|
|
|
| 336 |
|
✗ |
uint8_t RTC_DisableAlarm(RTC_AlarmSel_t alarm){ |
| 337 |
|
|
|
| 338 |
|
✗ |
uint8_t ret = 0; |
| 339 |
|
|
|
| 340 |
|
✗ |
RTC_Unlock(); |
| 341 |
|
|
|
| 342 |
|
✗ |
switch(alarm){ |
| 343 |
|
✗ |
case RTC_ALARM_A: |
| 344 |
|
✗ |
RTC->CR &= ~(1 << RTC_CR_ALRAE); |
| 345 |
|
✗ |
break; |
| 346 |
|
✗ |
case RTC_ALARM_B: |
| 347 |
|
✗ |
RTC->CR &= ~(1 << RTC_CR_ALRBE); |
| 348 |
|
✗ |
break; |
| 349 |
|
✗ |
default: |
| 350 |
|
✗ |
ret = 1; |
| 351 |
|
✗ |
break; |
| 352 |
|
|
} |
| 353 |
|
|
|
| 354 |
|
✗ |
return ret; |
| 355 |
|
|
} |
| 356 |
|
|
|
| 357 |
|
✗ |
void RTC_Alarm_IRQHandling(void){ |
| 358 |
|
|
|
| 359 |
|
|
/* Clear the EXTI PR register corresponding to the Alarm (EXTI 17) */ |
| 360 |
|
✗ |
if(EXTI->PR & (1 << 17)){ |
| 361 |
|
|
/* clear */ |
| 362 |
|
✗ |
EXTI->PR |= (1 << 17); |
| 363 |
|
|
} |
| 364 |
|
|
|
| 365 |
|
✗ |
if(RTC->ISR & (1 << RTC_ISR_ALRAF)){ |
| 366 |
|
✗ |
RTC_AlarmEventCallback(RTC_ALARM_A); |
| 367 |
|
|
} |
| 368 |
|
✗ |
else if(RTC->ISR & (1 << RTC_ISR_ALRBF)){ |
| 369 |
|
✗ |
RTC_AlarmEventCallback(RTC_ALARM_B); |
| 370 |
|
|
} |
| 371 |
|
|
else{ |
| 372 |
|
|
/* do nothing */ |
| 373 |
|
|
} |
| 374 |
|
|
} |
| 375 |
|
|
|
| 376 |
|
✗ |
__attribute__((weak)) void RTC_AlarmEventCallback(RTC_AlarmSel_t alarm){ |
| 377 |
|
|
|
| 378 |
|
|
/* This is a weak implementation. The application may override this function */ |
| 379 |
|
|
(void)alarm; |
| 380 |
|
|
} |
| 381 |
|
|
|
| 382 |
|
|
/***********************************************************************************************************/ |
| 383 |
|
|
/* Static Function Definitions */ |
| 384 |
|
|
/***********************************************************************************************************/ |
| 385 |
|
|
|
| 386 |
|
✗ |
static void RTC_Unlock(void){ |
| 387 |
|
|
|
| 388 |
|
✗ |
RTC->WPR |= 0xCA; |
| 389 |
|
✗ |
RTC->WPR |= 0x53; |
| 390 |
|
|
} |
| 391 |
|
|
|
| 392 |
|
✗ |
static void RTC_EnterConfig(void){ |
| 393 |
|
|
|
| 394 |
|
|
/* Set INIT bit to 1 in the RTC_ISR register to enter initialization mode */ |
| 395 |
|
✗ |
RTC->ISR |= (1 << RTC_ISR_INIT); |
| 396 |
|
|
/* Poll INITF bit of in the RTC_ISR register */ |
| 397 |
|
✗ |
while(!(RTC->ISR & (1 << RTC_ISR_INITF))); |
| 398 |
|
|
} |
| 399 |
|
|
|
| 400 |
|
✗ |
static void RTC_ExitConfig(void){ |
| 401 |
|
|
|
| 402 |
|
|
/* Exit the initialization mode by clearing the INIT bit */ |
| 403 |
|
✗ |
RTC->ISR &= ~(1 << RTC_ISR_INIT); |
| 404 |
|
|
} |
| 405 |
|
|
|