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mbed-os/targets/TARGET_NUVOTON/TARGET_NUC472/device/StdDriver/nuc472_rtc.c

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/**************************************************************************//**
* @file rtc.c
* @version V1.00
* $Revision: 17 $
* $Date: 14/10/03 11:51a $
* @brief NUC472/NUC442 RTC driver source file
*
* @note
* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include <stdio.h>
#include "NUC472_442.h"
/*---------------------------------------------------------------------------------------------------------*/
/* Includes of local headers */
/*---------------------------------------------------------------------------------------------------------*/
/** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
@{
*/
/** @addtogroup NUC472_442_RTC_Driver RTC Driver
@{
*/
/// @cond HIDDEN_SYMBOLS
/*---------------------------------------------------------------------------------------------------------*/
/* Macro, type and constant definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define RTC_GLOBALS
/*---------------------------------------------------------------------------------------------------------*/
/* Global file scope (static) variables */
/*---------------------------------------------------------------------------------------------------------*/
static volatile uint32_t g_u32Reg, g_u32Reg1,g_u32hiYear,g_u32loYear,g_u32hiMonth,g_u32loMonth,g_u32hiDay,g_u32loDay;
static volatile uint32_t g_u32hiHour,g_u32loHour,g_u32hiMin,g_u32loMin,g_u32hiSec,g_u32loSec;
/// @endcond HIDDEN_SYMBOLS
/** @addtogroup NUC472_442_RTC_EXPORTED_FUNCTIONS RTC Exported Functions
@{
*/
/**
* @brief Set Frequency Compensation Data
*
* @param[in] i32FrequencyX100 Specify the RTC clock X100, ex: 3277365 means 32773.65.
*
* @return None
*
*/
void RTC_32KCalibration(int32_t i32FrequencyX100)
{
int32_t i32RegInt,i32RegFra ;
/* Compute Integer and Fraction for RTC register*/
i32RegInt = (i32FrequencyX100/100) - RTC_FCR_REFERENCE;
i32RegFra = (((i32FrequencyX100%100)) * 60) / 100;
/* Judge Integer part is reasonable */
if ( (i32RegInt < 0) | (i32RegInt > 15) ) {
return;
}
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->FREQADJ = (uint32_t)((i32RegInt<<8) | i32RegFra);
}
/**
* @brief This function is used to:
* 1. Write initial key to let RTC start count. \n
* 2. Input parameter indicates start time. \n
* Null pointer for using default starting time. \n
*
* @param[in] sPt \n
* Specify the time property and current time. It includes: \n
* u32Year: Year value. \n
* u32Month: Month value. \n
* u32Day: Day value. \n
* u32DayOfWeek: Day of week. [ \ref RTC_SUNDAY / \ref RTC_MONDAY / \ref RTC_TUESDAY /
* \ref RTC_WEDNESDAY / \ref RTC_THURSDAY / \ref RTC_FRIDAY /
* \ref RTC_SATURDAY] \n
* u32Hour: Hour value. \n
* u32Minute: Minute value. \n
* u32Second: Second value. \n
* u32TimeScale: [ \ref RTC_CLOCK_12 / \ref RTC_CLOCK_24] \n
* u8AmPm: [ \ref RTC_AM / \ref RTC_PM] \n
*
* @return None
*
*/
void RTC_Open (S_RTC_TIME_DATA_T *sPt)
{
uint32_t u32Reg;
volatile int32_t i32delay=1000;
if(RTC->INIT != 0x1) {
RTC->INIT = RTC_INIT_KEY;
while(RTC->INIT != 0x1);
}
if(sPt == NULL)
return;
/*-----------------------------------------------------------------------------------------------------*/
/* Second, set RTC 24/12 hour setting */
/*-----------------------------------------------------------------------------------------------------*/
if (sPt->u32TimeScale == RTC_CLOCK_12) {
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->CLKFMT &= ~RTC_CLKFMT_24HEN_Msk;
/*-------------------------------------------------------------------------------------------------*/
/* important, range of 12-hour PM mode is 21 up to 32 */
/*-------------------------------------------------------------------------------------------------*/
if (sPt->u32AmPm == RTC_PM)
sPt->u32Hour += 20;
} else { /* RTC_CLOCK_24 */
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->CLKFMT |= RTC_CLKFMT_24HEN_Msk;
}
/*-----------------------------------------------------------------------------------------------------*/
/* Set RTC Calender Loading */
/*-----------------------------------------------------------------------------------------------------*/
u32Reg = ((sPt->u32Year - RTC_YEAR2000) / 10) << 20;
u32Reg |= (((sPt->u32Year - RTC_YEAR2000) % 10) << 16);
u32Reg |= ((sPt->u32Month / 10) << 12);
u32Reg |= ((sPt->u32Month % 10) << 8);
u32Reg |= ((sPt->u32Day / 10) << 4);
u32Reg |= (sPt->u32Day % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->CAL = (uint32_t)g_u32Reg;
/*-----------------------------------------------------------------------------------------------------*/
/* Set RTC Time Loading */
/*-----------------------------------------------------------------------------------------------------*/
u32Reg = ((sPt->u32Hour / 10) << 20);
u32Reg |= ((sPt->u32Hour % 10) << 16);
u32Reg |= ((sPt->u32Minute / 10) << 12);
u32Reg |= ((sPt->u32Minute % 10) << 8);
u32Reg |= ((sPt->u32Second / 10) << 4);
u32Reg |= (sPt->u32Second % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->TIME = (uint32_t)g_u32Reg;
RTC->WEEKDAY = sPt->u32DayOfWeek;
/* Waiting for RTC settings stable */
while(i32delay--);
}
/**
* @brief Read current date/time from RTC setting
*
* @param[out] sPt \n
* Specify the time property and current time. It includes: \n
* u32Year: Year value \n
* u32Month: Month value \n
* u32Day: Day value \n
* u32DayOfWeek: Day of week \n
* u32Hour: Hour value \n
* u32Minute: Minute value \n
* u32Second: Second value \n
* u32TimeScale: \ref RTC_CLOCK_12 / \ref RTC_CLOCK_24 \n
* u8AmPm: \ref RTC_AM / \ref RTC_PM \n
*
* @return None
*
*/
void RTC_GetDateAndTime(S_RTC_TIME_DATA_T *sPt)
{
uint32_t u32Tmp;
sPt->u32TimeScale = RTC->CLKFMT & RTC_CLKFMT_24HEN_Msk; /* 12/24-hour */
sPt->u32DayOfWeek = RTC->WEEKDAY & RTC_WEEKDAY_WEEKDAY_Msk; /* Day of week */
g_u32hiYear = (RTC->CAL & RTC_CAL_TENYEAR_Msk) >> RTC_CAL_TENYEAR_Pos;
g_u32loYear = (RTC->CAL & RTC_CAL_YEAR_Msk) >> RTC_CAL_YEAR_Pos;
g_u32hiMonth = (RTC->CAL & RTC_CAL_TENMON_Msk) >> RTC_CAL_TENMON_Pos;
g_u32loMonth = (RTC->CAL & RTC_CAL_MON_Msk) >> RTC_CAL_MON_Pos;
g_u32hiDay = (RTC->CAL & RTC_CAL_TENDAY_Msk) >> RTC_CAL_TENDAY_Pos;
g_u32loDay = (RTC->CAL & RTC_CAL_DAY_Msk);
g_u32hiHour = (RTC->TIME & RTC_TIME_TENHR_Msk) >> RTC_TIME_TENHR_Pos;
g_u32loHour = (RTC->TIME & RTC_TIME_HR_Msk) >> RTC_TIME_HR_Pos;
g_u32hiMin = (RTC->TIME & RTC_TIME_TENMIN_Msk) >> RTC_TIME_TENMIN_Pos;
g_u32loMin = (RTC->TIME & RTC_TIME_MIN_Msk) >> RTC_TIME_MIN_Pos;
g_u32hiSec = (RTC->TIME & RTC_TIME_TENSEC_Msk) >> RTC_TIME_TENSEC_Pos;
g_u32loSec = (RTC->TIME & RTC_TIME_SEC_Msk);
u32Tmp = (g_u32hiYear * 10); /* Compute to 20XX year */
u32Tmp += g_u32loYear;
sPt->u32Year = u32Tmp + RTC_YEAR2000;
u32Tmp = (g_u32hiMonth * 10); /* Compute 0~12 month */
sPt->u32Month = u32Tmp + g_u32loMonth;
u32Tmp = (g_u32hiDay * 10); /* Compute 0~31 day */
sPt->u32Day = u32Tmp + g_u32loDay;
if (sPt->u32TimeScale == RTC_CLOCK_12) { /* Compute12/24 hour */
u32Tmp = (g_u32hiHour * 10);
u32Tmp+= g_u32loHour;
sPt->u32Hour = u32Tmp; /* AM: 1~12. PM: 21~32. */
if (sPt->u32Hour >= 21) {
sPt->u32AmPm = RTC_PM;
sPt->u32Hour -= 20;
} else {
sPt->u32AmPm = RTC_AM;
}
u32Tmp = (g_u32hiMin * 10);
u32Tmp+= g_u32loMin;
sPt->u32Minute = u32Tmp;
u32Tmp = (g_u32hiSec * 10);
u32Tmp+= g_u32loSec;
sPt->u32Second = u32Tmp;
} else {
/* RTC_CLOCK_24 */
u32Tmp = (g_u32hiHour * 10);
u32Tmp += g_u32loHour;
sPt->u32Hour = u32Tmp;
u32Tmp = (g_u32hiMin * 10);
u32Tmp += g_u32loMin;
sPt->u32Minute = u32Tmp;
u32Tmp = (g_u32hiSec * 10);
u32Tmp += g_u32loSec;
sPt->u32Second = u32Tmp;
}
}
/**
* @brief Read alarm date/time from RTC setting
*
* @param[out] sPt \n
* Specify the time property and current time. It includes: \n
* u32Year: Year value \n
* u32Month: Month value \n
* u32Day: Day value \n
* u32DayOfWeek: Day of week \n
* u32Hour: Hour value \n
* u32Minute: Minute value \n
* u32Second: Second value \n
* u32TimeScale: \ref RTC_CLOCK_12 / \ref RTC_CLOCK_24 \n
* u8AmPm: \ref RTC_AM / \ref RTC_PM \n
*
* @return None
*
*/
void RTC_GetAlarmDateAndTime(S_RTC_TIME_DATA_T *sPt)
{
uint32_t u32Tmp;
sPt->u32TimeScale = RTC->CLKFMT & RTC_CLKFMT_24HEN_Msk; /* 12/24-hour */
sPt->u32DayOfWeek = RTC->WEEKDAY & RTC_WEEKDAY_WEEKDAY_Msk; /* Day of week */
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
g_u32hiYear = (RTC->CALM & RTC_CALM_TENYEAR_Msk) >> RTC_CALM_TENYEAR_Pos;
g_u32loYear = (RTC->CALM & RTC_CALM_YEAR_Msk) >> RTC_CALM_YEAR_Pos;
g_u32hiMonth = (RTC->CALM & RTC_CALM_TENMON_Msk) >> RTC_CALM_TENMON_Pos;
g_u32loMonth = (RTC->CALM & RTC_CALM_MON_Msk) >> RTC_CALM_MON_Pos;
g_u32hiDay = (RTC->CALM & RTC_CALM_TENDAY_Msk) >> RTC_CALM_TENDAY_Pos;
g_u32loDay = (RTC->CALM & RTC_CALM_DAY_Msk);
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
g_u32hiHour = (RTC->TALM & RTC_TALM_TENHR_Msk) >> RTC_TALM_TENHR_Pos;
g_u32loHour = (RTC->TALM & RTC_TALM_HR_Msk) >> RTC_TALM_HR_Pos;
g_u32hiMin = (RTC->TALM & RTC_TALM_TENMIN_Msk) >> RTC_TALM_TENMIN_Pos;
g_u32loMin = (RTC->TALM & RTC_TALM_MIN_Msk) >> RTC_TALM_MIN_Pos;
g_u32hiSec = (RTC->TALM & RTC_TALM_TENSEC_Msk) >> RTC_TALM_TENSEC_Pos;
g_u32loSec = (RTC->TALM & RTC_TALM_SEC_Msk);
u32Tmp = (g_u32hiYear * 10); /* Compute to 20XX year */
u32Tmp += g_u32loYear;
sPt->u32Year = u32Tmp + RTC_YEAR2000;
u32Tmp = (g_u32hiMonth * 10); /* Compute 0~12 month */
sPt->u32Month = u32Tmp + g_u32loMonth;
u32Tmp = (g_u32hiDay * 10); /* Compute 0~31 day */
sPt->u32Day = u32Tmp + g_u32loDay;
if (sPt->u32TimeScale == RTC_CLOCK_12) { /* Compute12/24 hour */
u32Tmp = (g_u32hiHour * 10);
u32Tmp += g_u32loHour;
sPt->u32Hour = u32Tmp; /* AM: 1~12. PM: 21~32. */
if (sPt->u32Hour >= 21) {
sPt->u32AmPm = RTC_PM;
sPt->u32Hour -= 20;
} else {
sPt->u32AmPm = RTC_AM;
}
u32Tmp = (g_u32hiMin * 10);
u32Tmp += g_u32loMin;
sPt->u32Minute = u32Tmp;
u32Tmp = (g_u32hiSec * 10);
u32Tmp += g_u32loSec;
sPt->u32Second = u32Tmp;
} else {
/* RTC_CLOCK_24 */
u32Tmp = (g_u32hiHour * 10);
u32Tmp += g_u32loHour;
sPt->u32Hour = u32Tmp;
u32Tmp = (g_u32hiMin * 10);
u32Tmp+= g_u32loMin;
sPt->u32Minute = u32Tmp;
u32Tmp = (g_u32hiSec * 10);
u32Tmp += g_u32loSec;
sPt->u32Second = u32Tmp;
}
}
/**
* @brief This function is used to update date/time to RTC.
*
* @param[in] sPt \n
* Specify the time property and current time. It includes: \n
* u32Year: Year value. \n
* u32Month: Month value. \n
* u32Day: Day value. \n
* u32DayOfWeek: Day of week. [ \ref RTC_SUNDAY / \ref RTC_MONDAY / \ref RTC_TUESDAY /
* \ref RTC_WEDNESDAY / \ref RTC_THURSDAY / \ref RTC_FRIDAY /
* \ref RTC_SATURDAY] \n
* u32Hour: Hour value. \n
* u32Minute: Minute value. \n
* u32Second: Second value. \n
* u32TimeScale: [ \ref RTC_CLOCK_12 / \ref RTC_CLOCK_24] \n
* u8AmPm: [ \ref RTC_AM / \ref RTC_PM] \n
*
*
* @return None
*
*
*/
void RTC_SetDateAndTime(S_RTC_TIME_DATA_T *sPt)
{
uint32_t u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if (sPt->u32TimeScale == RTC_CLOCK_12) {
RTC->CLKFMT &= ~RTC_CLKFMT_24HEN_Msk;
/*-----------------------------------------------------------------------------------------*/
/* important, range of 12-hour PM mode is 21 up to 32 */
/*-----------------------------------------------------------------------------------------*/
if (sPt->u32AmPm == RTC_PM)
sPt->u32Hour += 20;
} else { /* RTC_CLOCK_24 */
RTC->CLKFMT |= RTC_CLKFMT_24HEN_Msk;
}
RTC->WEEKDAY = sPt->u32DayOfWeek & RTC_WEEKDAY_WEEKDAY_Msk;
u32Reg = ((sPt->u32Year - RTC_YEAR2000) / 10) << 20;
u32Reg |= (((sPt->u32Year - RTC_YEAR2000) % 10) << 16);
u32Reg |= ((sPt->u32Month / 10) << 12);
u32Reg |= ((sPt->u32Month % 10) << 8);
u32Reg |= ((sPt->u32Day / 10) << 4);
u32Reg |= (sPt->u32Day % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->CAL = (uint32_t)g_u32Reg;
u32Reg = ((sPt->u32Hour / 10) << 20);
u32Reg |= ((sPt->u32Hour % 10) << 16);
u32Reg |= ((sPt->u32Minute / 10) << 12);
u32Reg |= ((sPt->u32Minute % 10) << 8);
u32Reg |= ((sPt->u32Second / 10) << 4);
u32Reg |= (sPt->u32Second % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->TIME = (uint32_t)g_u32Reg;
}
/**
* @brief This function is used to set alarm date/time to RTC.
*
* @param[in] sPt \n
* Specify the time property and current time. It includes: \n
* u32Year: Year value. \n
* u32Month: Month value. \n
* u32Day: Day value. \n
* u32DayOfWeek: Day of week. [ \ref RTC_SUNDAY / \ref RTC_MONDAY / \ref RTC_TUESDAY /
* \ref RTC_WEDNESDAY / \ref RTC_THURSDAY / \ref RTC_FRIDAY /
* \ref RTC_SATURDAY] \n
* u32Hour: Hour value. \n
* u32Minute: Minute value. \n
* u32Second: Second value. \n
* u32TimeScale: [ \ref RTC_CLOCK_12 / \ref RTC_CLOCK_24] \n
* u8AmPm: [ \ref RTC_AM / \ref RTC_PM] \n
*
* @return None
*
*/
void RTC_SetAlarmDateAndTime(S_RTC_TIME_DATA_T *sPt)
{
uint32_t u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if (sPt->u32TimeScale == RTC_CLOCK_12) {
RTC->CLKFMT &= ~RTC_CLKFMT_24HEN_Msk;
/*-----------------------------------------------------------------------------------------*/
/* important, range of 12-hour PM mode is 21 up to 32 */
/*-----------------------------------------------------------------------------------------*/
if (sPt->u32AmPm == RTC_PM)
sPt->u32Hour += 20;
} else { /* RTC_CLOCK_24 */
RTC->CLKFMT |= RTC_CLKFMT_24HEN_Msk;
}
RTC->WEEKDAY = sPt->u32DayOfWeek & RTC_WEEKDAY_WEEKDAY_Msk;
u32Reg = ((sPt->u32Year - RTC_YEAR2000) / 10) << 20;
u32Reg |= (((sPt->u32Year - RTC_YEAR2000) % 10) << 16);
u32Reg |= ((sPt->u32Month / 10) << 12);
u32Reg |= ((sPt->u32Month % 10) << 8);
u32Reg |= ((sPt->u32Day / 10) << 4);
u32Reg |= (sPt->u32Day % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->CALM = (uint32_t)g_u32Reg;
u32Reg = ((sPt->u32Hour / 10) << 20);
u32Reg |= ((sPt->u32Hour % 10) << 16);
u32Reg |= ((sPt->u32Minute / 10) << 12);
u32Reg |= ((sPt->u32Minute % 10) << 8);
u32Reg |= ((sPt->u32Second / 10) << 4);
u32Reg |= (sPt->u32Second % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->TALM = (uint32_t)g_u32Reg;
}
/**
* @brief This function is used to update date to RTC
*
* @param[in] u32Year The Year Calendar Digit of Alarm Setting
* @param[in] u32Month The Month Calendar Digit of Alarm Setting
* @param[in] u32Day The Day Calendar Digit of Alarm Setting
* @param[in] u32DayOfWeek The Day of Week. [ \ref RTC_SUNDAY / \ref RTC_MONDAY / \ref RTC_TUESDAY /
* \ref RTC_WEDNESDAY / \ref RTC_THURSDAY / \ref RTC_FRIDAY /
* \ref RTC_SATURDAY]
*
* @return None
*
*/
void RTC_SetDate(uint32_t u32Year, uint32_t u32Month, uint32_t u32Day, uint32_t u32DayOfWeek)
{
__IO uint32_t u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->WEEKDAY = u32DayOfWeek & RTC_WEEKDAY_WEEKDAY_Msk;
u32Reg = ((u32Year - RTC_YEAR2000) / 10) << 20;
u32Reg |= (((u32Year - RTC_YEAR2000) % 10) << 16);
u32Reg |= ((u32Month / 10) << 12);
u32Reg |= ((u32Month % 10) << 8);
u32Reg |= ((u32Day / 10) << 4);
u32Reg |= (u32Day % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->CAL = (uint32_t)g_u32Reg;
}
/**
* @brief This function is used to update time to RTC.
*
* @param[in] u32Hour The Hour Time Digit of Alarm Setting.
* @param[in] u32Minute The Month Calendar Digit of Alarm Setting
* @param[in] u32Second The Day Calendar Digit of Alarm Setting
* @param[in] u32TimeMode The 24-Hour / 12-Hour Time Scale Selection. [ \ref RTC_CLOCK_12 / \ref RTC_CLOCK_24]
* @param[in] u32AmPm 12-hour time scale with AM and PM indication. Only Time Scale select 12-hour used. [ \ref RTC_AM / \ref RTC_PM]
*
* @return None
*
*/
void RTC_SetTime(uint32_t u32Hour, uint32_t u32Minute, uint32_t u32Second, uint32_t u32TimeMode, uint32_t u32AmPm)
{
__IO uint32_t u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if (u32TimeMode == RTC_CLOCK_12) {
RTC->CLKFMT &= ~RTC_CLKFMT_24HEN_Msk;
if (u32AmPm == RTC_PM) /* important, range of 12-hour PM mode is 21 up to 32 */
u32Hour += 20;
} else if(u32TimeMode == RTC_CLOCK_24) {
RTC->CLKFMT |= RTC_CLKFMT_24HEN_Msk;
}
u32Reg = ((u32Hour / 10) << 20);
u32Reg |= ((u32Hour % 10) << 16);
u32Reg |= ((u32Minute / 10) << 12);
u32Reg |= ((u32Minute % 10) << 8);
u32Reg |= ((u32Second / 10) << 4);
u32Reg |= (u32Second % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->TIME = (uint32_t)g_u32Reg;
}
/**
* @brief This function is used to set alarm date to RTC
*
* @param[in] u32Year The Year Calendar Digit of Alarm Setting
* @param[in] u32Month The Month Calendar Digit of Alarm Setting
* @param[in] u32Day The Day Calendar Digit of Alarm Setting
*
* @return None
*
*/
void RTC_SetAlarmDate(uint32_t u32Year, uint32_t u32Month, uint32_t u32Day)
{
__IO uint32_t u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
u32Reg = ((u32Year - RTC_YEAR2000) / 10) << 20;
u32Reg |= (((u32Year - RTC_YEAR2000) % 10) << 16);
u32Reg |= ((u32Month / 10) << 12);
u32Reg |= ((u32Month % 10) << 8);
u32Reg |= ((u32Day / 10) << 4);
u32Reg |= (u32Day % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->CALM = (uint32_t)g_u32Reg;
}
/**
* @brief This function is used to set alarm date to RTC
*
* @param[in] u32Hour The Hour Time Digit of Alarm Setting.
* @param[in] u32Minute The Minute Time Digit of Alarm Setting
* @param[in] u32Second The Second Time Digit of Alarm Setting
* @param[in] u32TimeMode The 24-Hour / 12-Hour Time Scale Selection. [ \ref RTC_CLOCK_12 / \ref RTC_CLOCK_24]
* @param[in] u32AmPm 12-hour time scale with AM and PM indication. Only Time Scale select 12-hour used. [ \ref RTC_AM / \ref RTC_PM]
*
* @return None
*
*/
void RTC_SetAlarmTime(uint32_t u32Hour, uint32_t u32Minute, uint32_t u32Second, uint32_t u32TimeMode, uint32_t u32AmPm)
{
__IO uint32_t u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if (u32TimeMode == RTC_CLOCK_12) {
RTC->CLKFMT &= ~RTC_CLKFMT_24HEN_Msk;
if (u32AmPm == RTC_PM) /* important, range of 12-hour PM mode is 21 up to 32 */
u32Hour += 20;
} else if(u32TimeMode == RTC_CLOCK_24) {
RTC->CLKFMT |= RTC_CLKFMT_24HEN_Msk;
}
u32Reg = ((u32Hour / 10) << 20);
u32Reg |= ((u32Hour % 10) << 16);
u32Reg |= ((u32Minute / 10) << 12);
u32Reg |= ((u32Minute % 10) << 8);
u32Reg |= ((u32Second / 10) << 4);
u32Reg |= (u32Second % 10);
g_u32Reg = u32Reg;
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->TALM = (uint32_t)g_u32Reg;
}
/**
* @brief The spare registers access enable
*
* @return None
*
*/
void RTC_EnableSpareAccess(void)
{
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->SPRCTL |= RTC_SPRCTL_SPRRWEN_Msk;
while(!(RTC->SPRCTL & RTC_SPRCTL_SPRRWRDY_Msk));
}
/**
* @brief This function is used to:
* 1. Enable tamper detection function. \n
* 2. Set tamper detect pin number. \n
* 3. Set tamper control register, interrupt. \n
* 4. Clear tamper status. \n
* 5. Destroy Spare Register when tamper detected \n
*
* @param[in] u32PinNumber tamper detect pin number. [ \ref RTC_TAMPER_0 / \ref RTC_TAMPER_1]
* @param[in] u32PinCondition set tamper detection condition: 1=High level detect, 0=Low level detect
* @param[in] u32IntFlag Enable/Disable tamper interrupt: 1=Enable, 0=Disable
* @param[in] u32ClearFlag Clear tamper status
* @param[in] u32DestroyEn Enable/Disable Destroy Spare Register when tamper detected: 1=Enable, 0=Disable
*
* @return None
*
*/
void RTC_EnableTamperDetection(uint32_t u32PinNumber, uint32_t u32PinCondition, uint32_t u32IntFlag, uint32_t u32ClearFlag, uint32_t u32DestroyEn)
{
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if(u32PinNumber == RTC_TAMPER_0) {
if(u32ClearFlag)
RTC->TAMPSTS |= RTC_TAMPSTS_TAMPSTS0_Msk;
if(u32PinCondition)
RTC->TAMPCTL |= RTC_TAMPCTL_TAMPLV0_Msk;
else
RTC->TAMPCTL &= ~RTC_TAMPCTL_TAMPLV0_Msk;
RTC->TAMPCTL |= RTC_TAMPCTL_TAMPDBEN0_Msk;
RTC->TAMPCTL |= RTC_TAMPCTL_TAMPEN0_Msk;
} else if(u32PinNumber == RTC_TAMPER_1) {
if(u32ClearFlag)
RTC->TAMPSTS |= RTC_TAMPSTS_TAMPSTS1_Msk;
if(u32PinCondition)
RTC->TAMPCTL |= RTC_TAMPCTL_TAMPLV1_Msk;
else
RTC->TAMPCTL &= ~RTC_TAMPCTL_TAMPLV1_Msk;
RTC->TAMPCTL |= RTC_TAMPCTL_TAMPDBEN1_Msk;
RTC->TAMPCTL |= RTC_TAMPCTL_TAMPEN1_Msk;
}
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if(u32IntFlag)
RTC->TAMPCTL |= RTC_TAMPCTL_TIEN_Msk;
else
RTC->TAMPCTL &= ~RTC_TAMPCTL_TIEN_Msk;
if(u32DestroyEn)
RTC->TAMPCTL |= RTC_TAMPCTL_DESTROYEN_Msk;
else
RTC->TAMPCTL &= ~RTC_TAMPCTL_DESTROYEN_Msk;
}
/**
* @brief This function is used to disable tamper detection function.
*
* @param[in] u32PinNumber tamper detect pin number: \ref RTC_TAMPER_0, \ref RTC_TAMPER_1
*
* @return None
*
*/
void RTC_DisableTamperDetection(uint32_t u32PinNumber)
{
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if(u32PinNumber == RTC_TAMPER_0) {
RTC->TAMPCTL &= ~RTC_TAMPCTL_TAMPEN0_Msk;
} else if(u32PinNumber == RTC_TAMPER_1) {
RTC->TAMPCTL &= ~RTC_TAMPCTL_TAMPEN1_Msk;
}
}
/**
* @brief This function is used to get day of week.
*
* @param None
*
* @return Day of week
*
*/
uint32_t RTC_GetDayOfWeek(void)
{
return (RTC->WEEKDAY & RTC_WEEKDAY_WEEKDAY_Msk);
}
/**
* @brief The function is used to set time tick period for periodic time tick Interrupt.
*
* @param[in] u32TickSelection
* It is used to set the RTC time tick period for Periodic Time Tick Interrupt request.
* It consists of: \n
* - \ref RTC_TICK_1_SEC : Time tick is 1 second \n
* - \ref RTC_TICK_1_2_SEC : Time tick is 1/2 second \n
* - \ref RTC_TICK_1_4_SEC : Time tick is 1/4 second \n
* - \ref RTC_TICK_1_8_SEC : Time tick is 1/8 second \n
* - \ref RTC_TICK_1_16_SEC : Time tick is 1/16 second \n
* - \ref RTC_TICK_1_32_SEC : Time tick is 1/32 second \n
* - \ref RTC_TICK_1_64_SEC : Time tick is 1/64 second \n
* - \ref RTC_TICK_1_128_SEC : Time tick is 1/128 second
*
* @return None
*
*/
void RTC_SetTickPeriod(uint32_t u32TickSelection)
{
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->TICK = RTC->TICK & ~RTC_TICK_TICKSEL_Msk | u32TickSelection;
}
/**
* @brief The function is used to enable specified interrupt.
*
* @param[in] u32IntFlagMask The structure of interrupt source. It consists of: \n
* \ref RTC_INTEN_ALMIEN_Msk : Alarm interrupt \n
* \ref RTC_INTEN_TICKIEN_Msk : Tick interrupt \n
*
* @return None
*
*/
void RTC_EnableInt(uint32_t u32IntFlagMask)
{
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
RTC->INTEN |= u32IntFlagMask;
}
/**
* @brief The function is used to disable specified interrupt.
*
* @param[in] u32IntFlagMask The structure of interrupt source. It consists of: \n
* \ref RTC_INTEN_ALMIEN_Msk : Alarm interrupt \n
* \ref RTC_INTEN_TICKIEN_Msk : Tick interrupt \n
*
* @return None
*
*/
void RTC_DisableInt(uint32_t u32IntFlagMask)
{
RTC->RWEN = RTC_WRITE_KEY;
while(!(RTC->RWEN & RTC_RWEN_RWENF_Msk));
if(u32IntFlagMask & RTC_INTEN_TICKIEN_Msk) {
RTC->INTEN &= ~RTC_INTEN_TICKIEN_Msk;
RTC->INTSTS |= RTC_INTSTS_TICKIF_Msk;
}
if(u32IntFlagMask & RTC_INTEN_ALMIEN_Msk) {
RTC->INTEN &= ~RTC_INTEN_ALMIEN_Msk;
RTC->INTSTS |= RTC_INTSTS_ALMIF_Msk;
}
}
/**
* @brief Disable RTC clock.
*
* @return None
*
*/
void RTC_Close (void)
{
CLK->APBCLK0 &= ~CLK_APBCLK0_RTCCKEN_Msk;
}
/*@}*/ /* end of group NUC472_442_RTC_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group NUC472_442_RTC_Driver */
/*@}*/ /* end of group NUC472_442_Device_Driver */
/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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