lpc177x_8x_rtc.c

LPC1788的USBHOST的FATFS移植

/**********************************************************************
* $Id$		lpc177x_8x_rtc.c			2011-06-02
*//**
* @file		lpc177x_8x_rtc.c
* @brief	Contains all functions support for RTC firmware library
*			on LPC177x_8x
* @version	1.0
* @date		02. June. 2011
* @author	NXP MCU SW Application Team
* 
* Copyright(C) 2011, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
**********************************************************************/

/* Peripheral group ----------------------------------------------------------- */
/** @addtogroup RTC
 * @{
 */

/* Includes ------------------------------------------------------------------- */
#include "lpc177x_8x_rtc.h"
#include "lpc177x_8x_clkpwr.h"

/* Public Functions ----------------------------------------------------------- */
/** @addtogroup RTC_Public_Functions
 * @{
 */

/********************************************************************//**
 * @brief		Initializes the RTC peripheral.
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @return 		None
 *********************************************************************/
void RTC_Init (LPC_RTC_TypeDef *RTCx)
{
	/* Set up clock and power for RTC module */
	CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCRTC, ENABLE);

	// Clear all register to be default
	RTCx->ILR = 0x00;
	RTCx->CCR = 0x00;
	RTCx->CIIR = 0x00;
	RTCx->AMR = 0xFF;
	RTCx->CALIBRATION = 0x00;
}


/*********************************************************************//**
 * @brief		De-initializes the RTC peripheral registers to their
*                  default reset values.
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @return 		None
 **********************************************************************/
void RTC_DeInit(LPC_RTC_TypeDef *RTCx)
{
	RTCx->CCR = 0x00;
	// Disable power and clock for RTC module
	CLKPWR_ConfigPPWR (CLKPWR_PCONP_PCRTC, DISABLE);
}

/*********************************************************************//**
 * @brief 		Reset clock tick counter in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @return 		None
 **********************************************************************/
void RTC_ResetClockTickCounter(LPC_RTC_TypeDef *RTCx)
{
	RTCx->CCR |= RTC_CCR_CTCRST;
	RTCx->CCR &= (~RTC_CCR_CTCRST) & RTC_CCR_BITMASK;
}

/*********************************************************************//**
 * @brief 		Start/Stop RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	NewState New State of this function, should be:
 * 				- ENABLE: The time counters are enabled
 * 				- DISABLE: The time counters are disabled
 * @return 		None
 **********************************************************************/
void RTC_Cmd (LPC_RTC_TypeDef *RTCx, FunctionalState NewState)
{
	if (NewState == ENABLE)
	{
		RTCx->CCR |= RTC_CCR_CLKEN;
	}
	else
	{
		RTCx->CCR &= (~RTC_CCR_CLKEN) & RTC_CCR_BITMASK;
	}
}


/*********************************************************************//**
 * @brief 		Enable/Disable Counter increment interrupt for each time type
 * 				in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	CntIncrIntType: Counter Increment Interrupt type,
 * 				an increment of this type value below will generates
 * 				an interrupt, 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]	NewState New State of this function, should be:
 * 				- ENABLE: Counter Increment interrupt for this
 * 					time type are enabled
 * 				- DISABLE: Counter Increment interrupt for this
 * 					time type are disabled
 * @return 		None
 **********************************************************************/
void RTC_CntIncrIntConfig (LPC_RTC_TypeDef *RTCx, uint32_t CntIncrIntType, \
								FunctionalState NewState)
{
	if (NewState ==  ENABLE)
	{
		switch (CntIncrIntType)
		{
		case RTC_TIMETYPE_SECOND:
			RTCx->CIIR |= RTC_CIIR_IMSEC;
			break;
		case RTC_TIMETYPE_MINUTE:
			RTCx->CIIR |= RTC_CIIR_IMMIN;
			break;
		case RTC_TIMETYPE_HOUR:
			RTCx->CIIR |= RTC_CIIR_IMHOUR;
			break;
		case RTC_TIMETYPE_DAYOFWEEK:
			RTCx->CIIR |= RTC_CIIR_IMDOW;
			break;
		case RTC_TIMETYPE_DAYOFMONTH:
			RTCx->CIIR |= RTC_CIIR_IMDOM;
			break;
		case RTC_TIMETYPE_DAYOFYEAR:
			RTCx->CIIR |= RTC_CIIR_IMDOY;
			break;
		case RTC_TIMETYPE_MONTH:
			RTCx->CIIR |= RTC_CIIR_IMMON;
			break;
		case RTC_TIMETYPE_YEAR:
			RTCx->CIIR |= RTC_CIIR_IMYEAR;
			break;
		}
	}
	else
	{
		switch (CntIncrIntType)
		{
		case RTC_TIMETYPE_SECOND:
			RTCx->CIIR &= (~RTC_CIIR_IMSEC) & RTC_CIIR_BITMASK;
			break;
		case RTC_TIMETYPE_MINUTE:
			RTCx->CIIR &= (~RTC_CIIR_IMMIN) & RTC_CIIR_BITMASK;
			break;
		case RTC_TIMETYPE_HOUR:
			RTCx->CIIR &= (~RTC_CIIR_IMHOUR) & RTC_CIIR_BITMASK;
			break;
		case RTC_TIMETYPE_DAYOFWEEK:
			RTCx->CIIR &= (~RTC_CIIR_IMDOW) & RTC_CIIR_BITMASK;
			break;
		case RTC_TIMETYPE_DAYOFMONTH:
			RTCx->CIIR &= (~RTC_CIIR_IMDOM) & RTC_CIIR_BITMASK;
			break;
		case RTC_TIMETYPE_DAYOFYEAR:
			RTCx->CIIR &= (~RTC_CIIR_IMDOY) & RTC_CIIR_BITMASK;
			break;
		case RTC_TIMETYPE_MONTH:
			RTCx->CIIR &= (~RTC_CIIR_IMMON) & RTC_CIIR_BITMASK;
			break;
		case RTC_TIMETYPE_YEAR:
			RTCx->CIIR &= (~RTC_CIIR_IMYEAR) & RTC_CIIR_BITMASK;
			break;
		}
	}
}


/*********************************************************************//**
 * @brief 		Enable/Disable Alarm interrupt for each time type
 * 				in RTC peripheral
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	AlarmTimeType: Alarm Time Interrupt type,
 * 				an matching of this type value below with current time
 * 				in RTC will generates an interrupt, 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]	NewState New State of this function, should be:
 * 				- ENABLE: Alarm interrupt for this
 * 					time type are enabled
 * 				- DISABLE: Alarm interrupt for this
 * 					time type are disabled
 * @return 		None
 **********************************************************************/
void RTC_AlarmIntConfig (LPC_RTC_TypeDef *RTCx, uint32_t AlarmTimeType, \
								FunctionalState NewState)
{
	if (NewState == ENABLE)
	{
		switch (AlarmTimeType)
		{
		case RTC_TIMETYPE_SECOND:
			RTCx->AMR &= (~RTC_AMR_AMRSEC) & RTC_AMR_BITMASK;
			break;
		case RTC_TIMETYPE_MINUTE:
			RTCx->AMR &= (~RTC_AMR_AMRMIN) & RTC_AMR_BITMASK;
			break;
		case RTC_TIMETYPE_HOUR:
			RTCx->AMR &= (~RTC_AMR_AMRHOUR) & RTC_AMR_BITMASK;
			break;
		case RTC_TIMETYPE_DAYOFWEEK:
			RTCx->AMR &= (~RTC_AMR_AMRDOW) & RTC_AMR_BITMASK;
			break;
		case RTC_TIMETYPE_DAYOFMONTH:
			RTCx->AMR &= (~RTC_AMR_AMRDOM) & RTC_AMR_BITMASK;
			break;
		case RTC_TIMETYPE_DAYOFYEAR:
			RTCx->AMR &= (~RTC_AMR_AMRDOY) & RTC_AMR_BITMASK;
			break;
		case RTC_TIMETYPE_MONTH:
			RTCx->AMR &= (~RTC_AMR_AMRMON) & RTC_AMR_BITMASK;
			break;
		case RTC_TIMETYPE_YEAR:
			RTCx->AMR &= (~RTC_AMR_AMRYEAR) & RTC_AMR_BITMASK;
			break;
		}
	}
	else
	{
		switch (AlarmTimeType)
		{
		case RTC_TIMETYPE_SECOND:
			RTCx->AMR |= (RTC_AMR_AMRSEC);
			break;
		case RTC_TIMETYPE_MINUTE:
			RTCx->AMR |= (RTC_AMR_AMRMIN);
			break;
		case RTC_TIMETYPE_HOUR:
			RTCx->AMR |= (RTC_AMR_AMRHOUR);
			break;
		case RTC_TIMETYPE_DAYOFWEEK:
			RTCx->AMR |= (RTC_AMR_AMRDOW);
			break;
		case RTC_TIMETYPE_DAYOFMONTH:
			RTCx->AMR |= (RTC_AMR_AMRDOM);
			break;
		case RTC_TIMETYPE_DAYOFYEAR:
			RTCx->AMR |= (RTC_AMR_AMRDOY);
			break;
		case RTC_TIMETYPE_MONTH:
			RTCx->AMR |= (RTC_AMR_AMRMON);
			break;
		case RTC_TIMETYPE_YEAR:
			RTCx->AMR |= (RTC_AMR_AMRYEAR);
			break;
		}
	}
}


/*********************************************************************//**
 * @brief 		Set current time value for each time type in RTC peripheral
 * @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]	TimeValue Time value to set
 * @return 		None
 **********************************************************************/
void RTC_SetTime (LPC_RTC_TypeDef *RTCx, uint32_t Timetype, uint32_t TimeValue)
{
	switch ( Timetype)
	{
	case RTC_TIMETYPE_SECOND:
		if(TimeValue >= RTC_SECOND_MAX)
			while(1); //error loop
		RTCx->SEC = TimeValue & RTC_SEC_MASK;
		break;

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

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

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

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

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

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

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

/*********************************************************************//**
 * @brief 		Get current time value for each type time type
 * @param[in]	RTCx	RTC peripheral selected, should be LPC_RTC
 * @param[in]	Timetype: Time Type, should be: