lpc177x_8x_rtc.c

LPC1788的USBHOST的FATFS移植

 * 				- RTC_TIMETYPE_SECOND
 * 				- RTC_TIMETYPE_MINUTE
 * 				- RTC_TIMETYPE_HOUR
 * 				- RTC_TIMETYPE_DAYOFWEEK
 * 				- RTC_TIMETYPE_DAYOFMONTH
 * 				- RTC_TIMETYPE_DAYOFYEAR
 * 				- RTC_TIMETYPE_MONTH
 * 				- RTC_TIMETYPE_YEAR
 * @return 		Value of time according to specified time type
 **********************************************************************/
uint32_t RTC_GetTime(LPC_RTC_TypeDef *RTCx, uint32_t Timetype)
{
	switch (Timetype)
	{
	case RTC_TIMETYPE_SECOND:
		return (RTCx->SEC & RTC_SEC_MASK);
	case RTC_TIMETYPE_MINUTE:
		return (RTCx->MIN & RTC_MIN_MASK);
	case RTC_TIMETYPE_HOUR:
		return (RTCx->HOUR & RTC_HOUR_MASK);
	case RTC_TIMETYPE_DAYOFWEEK:
		return (RTCx->DOW & RTC_DOW_MASK);
	case RTC_TIMETYPE_DAYOFMONTH:
		return (RTCx->DOM & RTC_DOM_MASK);
	case RTC_TIMETYPE_DAYOFYEAR:
		return (RTCx->DOY & RTC_DOY_MASK);
	case RTC_TIMETYPE_MONTH:
		return (RTCx->MONTH & RTC_MONTH_MASK);
	case RTC_TIMETYPE_YEAR:
		return (RTCx->YEAR & RTC_YEAR_MASK);
	default:
		return (0);
	}
}


/*********************************************************************//**
 * @brief 		Set full of time in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	pFullTime Pointer to a RTC_TIME_Type structure that
 * 				contains time value in full.
 * @return 		None
 **********************************************************************/
void RTC_SetFullTime (LPC_RTC_TypeDef *RTCx, RTC_TIME_Type *pFullTime)
{
	RTCx->DOM = pFullTime->DOM & RTC_DOM_MASK;
	RTCx->DOW = pFullTime->DOW & RTC_DOW_MASK;
	RTCx->DOY = pFullTime->DOY & RTC_DOY_MASK;
	RTCx->HOUR = pFullTime->HOUR & RTC_HOUR_MASK;
	RTCx->MIN = pFullTime->MIN & RTC_MIN_MASK;
	RTCx->SEC = pFullTime->SEC & RTC_SEC_MASK;
	RTCx->MONTH = pFullTime->MONTH & RTC_MONTH_MASK;
	RTCx->YEAR = pFullTime->YEAR & RTC_YEAR_MASK;
}


/*********************************************************************//**
 * @brief 		Get full of time in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	pFullTime Pointer to a RTC_TIME_Type structure that
 * 				will be stored time in full.
 * @return 		None
 **********************************************************************/
void RTC_GetFullTime (LPC_RTC_TypeDef *RTCx, RTC_TIME_Type *pFullTime)
{
	pFullTime->DOM = RTCx->DOM & RTC_DOM_MASK;
	pFullTime->DOW = RTCx->DOW & RTC_DOW_MASK;
	pFullTime->DOY = RTCx->DOY & RTC_DOY_MASK;
	pFullTime->HOUR = RTCx->HOUR & RTC_HOUR_MASK;
	pFullTime->MIN = RTCx->MIN & RTC_MIN_MASK;
	pFullTime->SEC = RTCx->SEC & RTC_SEC_MASK;
	pFullTime->MONTH = RTCx->MONTH & RTC_MONTH_MASK;
	pFullTime->YEAR = RTCx->YEAR & RTC_YEAR_MASK;
}


/*********************************************************************//**
 * @brief 		Set alarm time value for each time type
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	Timetype: Time Type, should be:
 * 				- RTC_TIMETYPE_SECOND
 * 				- RTC_TIMETYPE_MINUTE
 * 				- RTC_TIMETYPE_HOUR
 * 				- RTC_TIMETYPE_DAYOFWEEK
 * 				- RTC_TIMETYPE_DAYOFMONTH
 * 				- RTC_TIMETYPE_DAYOFYEAR
 * 				- RTC_TIMETYPE_MONTH
 * 				- RTC_TIMETYPE_YEAR
 * @param[in]	ALValue Alarm time value to set
 * @return 		None
 **********************************************************************/
void RTC_SetAlarmTime (LPC_RTC_TypeDef *RTCx, uint32_t Timetype, uint32_t ALValue)
{
	switch (Timetype)
	{
	case RTC_TIMETYPE_SECOND:
		if(ALValue >= RTC_SECOND_MAX)
			while(1); //error loop
		RTCx->ALSEC = ALValue & RTC_SEC_MASK;
		break;

	case RTC_TIMETYPE_MINUTE:
		if(ALValue >= RTC_MINUTE_MAX)
			while(1); //error loop
		RTCx->ALMIN = ALValue & RTC_MIN_MASK;
		break;

	case RTC_TIMETYPE_HOUR:
		if(ALValue >= RTC_HOUR_MAX)
			while(1); //error loop
		RTCx->ALHOUR = ALValue & RTC_HOUR_MASK;
		break;

	case RTC_TIMETYPE_DAYOFWEEK:
		if(ALValue >= RTC_DAYOFWEEK_MAX)
			while(1); //error loop
		RTCx->ALDOW = ALValue & RTC_DOW_MASK;
		break;

	case RTC_TIMETYPE_DAYOFMONTH:
		if((ALValue <= RTC_DAYOFMONTH_MIN)|(ALValue >= RTC_DAYOFMONTH_MAX))
			while(1); //error loop
		RTCx->ALDOM = ALValue & RTC_DOM_MASK;
		break;

	case RTC_TIMETYPE_DAYOFYEAR:
		if((ALValue <= RTC_DAYOFYEAR_MIN)|(ALValue >= RTC_DAYOFYEAR_MAX))
			while(1); //error loop
		RTCx->ALDOY = ALValue & RTC_DOY_MASK;
		break;

	case RTC_TIMETYPE_MONTH:
		if((ALValue <= RTC_MONTH_MIN)|(ALValue >= RTC_MONTH_MAX))
			while(1); //error loop
		RTCx->ALMON = ALValue & RTC_MONTH_MASK;
		break;

	case RTC_TIMETYPE_YEAR:
		if(ALValue >= RTC_YEAR_MAX)
			while(1); //error loop
		RTCx->ALYEAR = ALValue & RTC_YEAR_MASK;
		break;
	}
}



/*********************************************************************//**
 * @brief 		Get alarm time value for each time type
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	Timetype: Time Type, should be:
 * 				- RTC_TIMETYPE_SECOND
 * 				- RTC_TIMETYPE_MINUTE
 * 				- RTC_TIMETYPE_HOUR
 * 				- RTC_TIMETYPE_DAYOFWEEK
 * 				- RTC_TIMETYPE_DAYOFMONTH
 * 				- RTC_TIMETYPE_DAYOFYEAR
 * 				- RTC_TIMETYPE_MONTH
 * 				- RTC_TIMETYPE_YEAR
  * @return 	Value of Alarm time according to specified time type
 **********************************************************************/
uint32_t RTC_GetAlarmTime (LPC_RTC_TypeDef *RTCx, uint32_t Timetype)
{
	switch (Timetype)
	{
	case RTC_TIMETYPE_SECOND:
		return (RTCx->ALSEC & RTC_SEC_MASK);
	case RTC_TIMETYPE_MINUTE:
		return (RTCx->ALMIN & RTC_MIN_MASK);
	case RTC_TIMETYPE_HOUR:
		return (RTCx->ALHOUR & RTC_HOUR_MASK);
	case RTC_TIMETYPE_DAYOFWEEK:
		return (RTCx->ALDOW & RTC_DOW_MASK);
	case RTC_TIMETYPE_DAYOFMONTH:
		return (RTCx->ALDOM & RTC_DOM_MASK);
	case RTC_TIMETYPE_DAYOFYEAR:
		return (RTCx->ALDOY & RTC_DOY_MASK);
	case RTC_TIMETYPE_MONTH:
		return (RTCx->ALMON & RTC_MONTH_MASK);
	case RTC_TIMETYPE_YEAR:
		return (RTCx->ALYEAR & RTC_YEAR_MASK);
	default:
		return (0);
	}
}


/*********************************************************************//**
 * @brief 		Set full of alarm time in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	pFullTime Pointer to a RTC_TIME_Type structure that
 * 				contains alarm time value in full.
 * @return 		None
 **********************************************************************/
void RTC_SetFullAlarmTime (LPC_RTC_TypeDef *RTCx, RTC_TIME_Type *pFullTime)
{
	RTCx->ALDOM = pFullTime->DOM & RTC_DOM_MASK;
	RTCx->ALDOW = pFullTime->DOW & RTC_DOW_MASK;
	RTCx->ALDOY = pFullTime->DOY & RTC_DOY_MASK;
	RTCx->ALHOUR = pFullTime->HOUR & RTC_HOUR_MASK;
	RTCx->ALMIN = pFullTime->MIN & RTC_MIN_MASK;
	RTCx->ALSEC = pFullTime->SEC & RTC_SEC_MASK;
	RTCx->ALMON = pFullTime->MONTH & RTC_MONTH_MASK;
	RTCx->ALYEAR = pFullTime->YEAR & RTC_YEAR_MASK;
}


/*********************************************************************//**
 * @brief 		Get full of alarm time in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	pFullTime Pointer to a RTC_TIME_Type structure that
 * 				will be stored alarm time in full.
 * @return 		None
 **********************************************************************/
void RTC_GetFullAlarmTime (LPC_RTC_TypeDef *RTCx, RTC_TIME_Type *pFullTime)
{
	pFullTime->DOM = RTCx->ALDOM & RTC_DOM_MASK;
	pFullTime->DOW = RTCx->ALDOW & RTC_DOW_MASK;
	pFullTime->DOY = RTCx->ALDOY & RTC_DOY_MASK;
	pFullTime->HOUR = RTCx->ALHOUR & RTC_HOUR_MASK;
	pFullTime->MIN = RTCx->ALMIN & RTC_MIN_MASK;
	pFullTime->SEC = RTCx->ALSEC & RTC_SEC_MASK;
	pFullTime->MONTH = RTCx->ALMON & RTC_MONTH_MASK;
	pFullTime->YEAR = RTCx->ALYEAR & RTC_YEAR_MASK;
}


/*********************************************************************//**
 * @brief 		Check whether if specified Location interrupt in
 * 				RTC peripheral is set or not
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	IntType Interrupt location type, should be:
 * 						- RTC_INT_COUNTER_INCREASE: Counter Increment Interrupt
 * 							block generated an interrupt.
 * 						- RTC_INT_ALARM: Alarm generated an
 * 							interrupt.
 * @return 		New state of specified Location interrupt in RTC peripheral
 * 				(SET or RESET)
 **********************************************************************/
IntStatus RTC_GetIntPending (LPC_RTC_TypeDef *RTCx, uint32_t IntType)
{
	return ((RTCx->ILR & IntType) ? SET : RESET);
}


/*********************************************************************//**
 * @brief 		Clear specified Location interrupt pending in
 * 				RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	IntType Interrupt location type, should be:
 * 						- RTC_INT_COUNTER_INCREASE: Clear Counter Increment
 * 						Interrupt pending.
 * 						- RTC_INT_ALARM: Clear alarm interrupt pending
 * @return 		None
 **********************************************************************/
void RTC_ClearIntPending (LPC_RTC_TypeDef *RTCx, uint32_t IntType)
{
	RTCx->ILR |= IntType;
}

/*********************************************************************//**
 * @brief 		Enable/Disable calibration counter in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	NewState New State of this function, should be:
 * 				- ENABLE: The calibration counter is enabled and counting
 * 				- DISABLE: The calibration counter is disabled and reset to zero
 * @return 		None
 **********************************************************************/
void RTC_CalibCounterCmd(LPC_RTC_TypeDef *RTCx, FunctionalState NewState)
{
	if (NewState == ENABLE)
	{
		RTCx->CCR &= (~RTC_CCR_CCALEN) & RTC_CCR_BITMASK;
	}
	else
	{
		RTCx->CCR |= RTC_CCR_CCALEN;
	}
}


/*********************************************************************//**
 * @brief 		Configures Calibration in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	CalibValue Calibration value, should be in range from
 * 					0 to 131,072
 * @param[in]	CalibDir Calibration Direction, should be:
 * 					- RTC_CALIB_DIR_FORWARD: Forward calibration
 * 					- RTC_CALIB_DIR_BACKWARD: Backward calibration
 * @return 		None
 **********************************************************************/
void RTC_CalibConfig(LPC_RTC_TypeDef *RTCx, uint32_t CalibValue, uint8_t CalibDir)
{
	RTCx->CALIBRATION = ((CalibValue - 1) & RTC_CALIBRATION_CALVAL_MASK) \
			| ((CalibDir == RTC_CALIB_DIR_BACKWARD) ? RTC_CALIBRATION_LIBDIR : 0);
}


/*********************************************************************//**
 * @brief 		Write value to General purpose registers
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	Channel General purpose registers Channel number,
 * 				should be in range from 0 to 4.
 * @param[in]	Value Value to write
 * @return 		None
 * Note: These General purpose registers can be used to store important
 * information when the main power supply is off. The value in these
 * registers is not affected by chip reset.
 **********************************************************************/
void RTC_WriteGPREG (LPC_RTC_TypeDef *RTCx, uint8_t Channel, uint32_t Value)
{
	uint32_t *preg;

	preg = (uint32_t *)&RTCx->GPREG0;
	preg += Channel;
	*preg = Value;
}


/*********************************************************************//**
 * @brief 		Read value from General purpose registers
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	Channel General purpose registers Channel number,
 * 				should be in range from 0 to 4.
 * @return 		Read Value
 * Note: These General purpose registers can be used to store important
 * information when the main power supply is off. The value in these
 * registers is not affected by chip reset.
 **********************************************************************/
uint32_t RTC_ReadGPREG (LPC_RTC_TypeDef *RTCx, uint8_t Channel)
{
	uint32_t *preg;
	uint32_t value;

	preg = (uint32_t *)&RTCx->GPREG0;
	preg += Channel;
	value = *preg;
	return (value);
}

/**
 * @}
 */


/**
 * @}
 */

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