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rt-thread/bsp/lpc408x/Libraries/Drivers/source/lpc_rtc.c

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add the bsp for lpc407x/408x
2014-01-02 18:30:13 +08:00
/**********************************************************************
* $Id$ lpc_rtc.c 2011-06-02
*//**
* @file lpc_rtc.c
* @brief Contains all functions support for RTC firmware library
* on LPC
* @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.
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors'
* relevant copyright in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
**********************************************************************/
/* Peripheral group ----------------------------------------------------------- */
/** @addtogroup RTC
* @{
*/
#ifdef __BUILD_WITH_EXAMPLE__
#include "lpc_libcfg.h"
#else
#include "lpc_libcfg_default.h"
#endif /* __BUILD_WITH_EXAMPLE__ */
#ifdef _RTC
/* Includes ------------------------------------------------------------------- */
#include "lpc_rtc.h"
#include "lpc_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)
RTCx->SEC = TimeValue & RTC_SEC_MASK;
break;
case RTC_TIMETYPE_MINUTE:
if(TimeValue <= RTC_MINUTE_MAX)
RTCx->MIN = TimeValue & RTC_MIN_MASK;
break;
case RTC_TIMETYPE_HOUR:
if(TimeValue <= RTC_HOUR_MAX)
RTCx->HOUR = TimeValue & RTC_HOUR_MASK;
break;
case RTC_TIMETYPE_DAYOFWEEK:
if(TimeValue <= RTC_DAYOFWEEK_MAX)
RTCx->DOW = TimeValue & RTC_DOW_MASK;
break;
case RTC_TIMETYPE_DAYOFMONTH:
if((TimeValue >= RTC_DAYOFMONTH_MIN)&&(TimeValue <= RTC_DAYOFMONTH_MAX))
RTCx->DOM = TimeValue & RTC_DOM_MASK;
break;
case RTC_TIMETYPE_DAYOFYEAR:
if((TimeValue >= RTC_DAYOFYEAR_MIN)&&(TimeValue <= RTC_DAYOFYEAR_MAX))
RTCx->DOY = TimeValue & RTC_DOY_MASK;
break;
case RTC_TIMETYPE_MONTH:
if((TimeValue >= RTC_MONTH_MIN)&&(TimeValue <= RTC_MONTH_MAX))
RTCx->MONTH = TimeValue & RTC_MONTH_MASK;
break;
case RTC_TIMETYPE_YEAR:
if(TimeValue <= RTC_YEAR_MAX)
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:
* - 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)
RTCx->ALSEC = ALValue & RTC_SEC_MASK;
break;
case RTC_TIMETYPE_MINUTE:
if(ALValue <= RTC_MINUTE_MAX)
RTCx->ALMIN = ALValue & RTC_MIN_MASK;
break;
case RTC_TIMETYPE_HOUR:
if(ALValue <= RTC_HOUR_MAX)
RTCx->ALHOUR = ALValue & RTC_HOUR_MASK;
break;
case RTC_TIMETYPE_DAYOFWEEK:
if(ALValue <= RTC_DAYOFWEEK_MAX)
RTCx->ALDOW = ALValue & RTC_DOW_MASK;
break;
case RTC_TIMETYPE_DAYOFMONTH:
if((ALValue >= RTC_DAYOFMONTH_MIN)&&(ALValue <= RTC_DAYOFMONTH_MAX))
RTCx->ALDOM = ALValue & RTC_DOM_MASK;
break;
case RTC_TIMETYPE_DAYOFYEAR:
if((ALValue >= RTC_DAYOFYEAR_MIN)&&(ALValue <= RTC_DAYOFYEAR_MAX))
RTCx->ALDOY = ALValue & RTC_DOY_MASK;
break;
case RTC_TIMETYPE_MONTH:
if((ALValue >= RTC_MONTH_MIN)&&(ALValue <= RTC_MONTH_MAX))
RTCx->ALMON = ALValue & RTC_MONTH_MASK;
break;
case RTC_TIMETYPE_YEAR:
if(ALValue <= RTC_YEAR_MAX)
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) & 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);
}
/*********************************************************************//**
* @brief Initialize an variable of type RTC_ER_CONFIG_Type.
* @param[in] pConfig The address of input variable.
* @return None
**********************************************************************/
void RTC_ER_InitConfigStruct(RTC_ER_CONFIG_Type* pConfig)
{
uint32_t tmp;
if(pConfig == NULL)
return;
for(tmp = 0; tmp < RTC_ER_INPUT_CHANNEL_NUM; tmp++)
{
pConfig->InputChannel[tmp].EventOnPosEdge = FALSE;
pConfig->InputChannel[tmp].GPClear= FALSE;
pConfig->InputChannel[tmp].IntWake= FALSE;
}
pConfig->Clk = 64;
}
/*********************************************************************//**
* @brief Initialize Event Monitor/Recorder
* @param[in] pConfig Configuration
* @return SUCCESS/ERROR
* Note: The RTC Module must be intialized before initializing this module.
**********************************************************************/
Status RTC_ER_Init(RTC_ER_CONFIG_Type* pConfig)
{
if(pConfig == NULL)
return ERROR;
if((LPC_RTC->CCR & RTC_CCR_CLKEN) == 0)
return ERROR;
/* EV0 */
if(pConfig->InputChannel[0].EventOnPosEdge)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV0_POS_EDGE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV0_POS_EDGE;
if(pConfig->InputChannel[0].IntWake)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV0_INTWAKE_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV0_INTWAKE_ENABLE;
if(pConfig->InputChannel[0].GPClear)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV0_GPCLEAR_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV0_GPCLEAR_ENABLE;
/* EV1 */
if(pConfig->InputChannel[1].EventOnPosEdge)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV1_POS_EDGE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV1_POS_EDGE;
if(pConfig->InputChannel[1].IntWake)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV1_INTWAKE_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV1_INTWAKE_ENABLE;
if(pConfig->InputChannel[1].GPClear)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV1_GPCLEAR_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV1_GPCLEAR_ENABLE;
/* EV2 */
if(pConfig->InputChannel[2].EventOnPosEdge)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV2_POS_EDGE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV2_POS_EDGE;
if(pConfig->InputChannel[2].IntWake)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV2_INTWAKE_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV2_INTWAKE_ENABLE;
if(pConfig->InputChannel[2].GPClear)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV2_GPCLEAR_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV2_GPCLEAR_ENABLE;
/* Sample Clock */
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_MODE_MASK;
switch(pConfig->Clk)
{
case 0:
LPC_RTC->ERCONTROL |= RTC_ERCTRL_MODE_CLK_DISABLE;
break;
case 16:
LPC_RTC->ERCONTROL |= RTC_ERCTRL_MODE_16HZ;
break;
case 64:
LPC_RTC->ERCONTROL |= RTC_ERCTRL_MODE_64HZ;
break;
case 1000:
LPC_RTC->ERCONTROL |= RTC_ERCTRL_MODE_1KHZ;
break;
default:
return ERROR;
}
return SUCCESS;
}
/*********************************************************************//**
* @brief Enable/Disable a input channel for Event Monitor/Recorder
* @param[in] channel Channel Number. It should be 0~2
* @param[in]state ENABLE/DISABLE
* @return SUCCESS/ERROR
**********************************************************************/
Status RTC_ER_Cmd(uint8_t channel, FunctionalState state)
{
switch(channel)
{
case 0:
if(state)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV0_INPUT_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV0_INPUT_ENABLE;
break;
case 1:
if(state)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV1_INPUT_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV1_INPUT_ENABLE;
break;
case 2:
if(state)
LPC_RTC->ERCONTROL |= RTC_ERCTRL_EV2_INPUT_ENABLE;
else
LPC_RTC->ERCONTROL &= ~RTC_ERCTRL_EV2_INPUT_ENABLE;
break;
default:
return ERROR;
}
return SUCCESS;
}
/*********************************************************************//**
* @brief Get event count on a given channel.
* @param[in] channel Channel Number. It should be 0~2
* @return counter
**********************************************************************/
uint8_t RTC_ER_GetEventCount(uint8_t channel)
{
uint8_t count = 0;
switch(channel)
{
case 0:
count = RTC_ER_EV0_COUNTER(LPC_RTC->ERCOUNTERS);
break;
case 1:
count = RTC_ER_EV1_COUNTER(LPC_RTC->ERCOUNTERS);
break;
case 2:
count = RTC_ER_EV2_COUNTER(LPC_RTC->ERCOUNTERS);
break;
default:
break;
}
return count;
}
/*********************************************************************//**
* @brief Get Event Monirot/Recorder Status.
* @param[in] None
* @return Status. It can includes:
* RTC_ER_EVENTS_ON_EV0_FLG
* RTC_ER_EVENTS_ON_EV1_FLG
* RTC_ER_EVENTS_ON_EV2_FLG
* RTC_ER_STATUS_GP_CLEARED_FLG
* RTC_ER_STATUS_WAKEUP_REQ_PENDING
**********************************************************************/
uint32_t RTC_ER_GetStatus(void)
{
return LPC_RTC->ERSTATUS;
}
/*********************************************************************//**
* @brief Clear Event Monitor/recoder status register.
* @param[in] status Status Flag. It should be:
* RTC_ER_EVENTS_ON_EV0_FLG
* RTC_ER_EVENTS_ON_EV1_FLG
* RTC_ER_EVENTS_ON_EV2_FLG
* RTC_ER_STATUS_GP_CLEARED_FLG
* RTC_ER_STATUS_WAKEUP_REQ_PENDING
* @return None
**********************************************************************/
void RTC_ER_ClearStatus(uint32_t status)
{
LPC_RTC->ERSTATUS |= status;
}
/*********************************************************************//**
* @brief Check whether a Wakup request is pending or not.
* @param[in] None
* @return TRUE/FALSE
**********************************************************************/
Bool RTC_ER_WakupReqPending(void)
{
if(LPC_RTC->ERSTATUS & RTC_ER_STATUS_WAKEUP_REQ_PENDING)
return TRUE;
else
return FALSE;
}
/*********************************************************************//**
* @brief Check whether RTC General Purpose registed has been cleared or not.
* @param[in] None
* @return TRUE/FALSE
**********************************************************************/
Bool RTC_ER_GPCleared(void)
{
if(LPC_RTC->ERSTATUS & RTC_ER_STATUS_GP_CLEARED_FLG)
return TRUE;
else
return FALSE;
}
/*********************************************************************//**
* @brief Get the timestamp of the fist event on a given channel.
* @param[in] channel Channel number (It should be 0~2)
* @param[in] pTimeStamp point to the buffer
* @return SUCCESS/ERROR
**********************************************************************/
Status RTC_ER_GetFirstTimeStamp(uint8_t channel, RTC_ER_TIMESTAMP_Type* pTimeStamp)
{
if(pTimeStamp == NULL)
return ERROR;
switch(channel)
{
case 0:
if((LPC_RTC->ERSTATUS & (1<<RTC_ER_STATUS_EV0_BIT)) == 0)
return ERROR;
pTimeStamp->SEC = RTC_ER_TIMESTAMP_SEC(LPC_RTC->ERFIRSTSTAMP0);
pTimeStamp->MIN= RTC_ER_TIMESTAMP_MIN(LPC_RTC->ERFIRSTSTAMP0);
pTimeStamp->HOUR= RTC_ER_TIMESTAMP_HOUR(LPC_RTC->ERFIRSTSTAMP0);
pTimeStamp->DOY = RTC_ER_TIMESTAMP_DOY(LPC_RTC->ERFIRSTSTAMP0);
break;
case 1:
if((LPC_RTC->ERSTATUS & (1<<RTC_ER_STATUS_EV1_BIT)) == 0)
return ERROR;
pTimeStamp->SEC = RTC_ER_TIMESTAMP_SEC(LPC_RTC->ERFIRSTSTAMP1);
pTimeStamp->MIN= RTC_ER_TIMESTAMP_MIN(LPC_RTC->ERFIRSTSTAMP1);
pTimeStamp->HOUR= RTC_ER_TIMESTAMP_HOUR(LPC_RTC->ERFIRSTSTAMP1);
pTimeStamp->DOY = RTC_ER_TIMESTAMP_DOY(LPC_RTC->ERFIRSTSTAMP1);
break;
case 2:
if((LPC_RTC->ERSTATUS & (1<<RTC_ER_STATUS_EV2_BIT)) == 0)
return ERROR;
pTimeStamp->SEC = RTC_ER_TIMESTAMP_SEC(LPC_RTC->ERFIRSTSTAMP2);
pTimeStamp->MIN= RTC_ER_TIMESTAMP_MIN(LPC_RTC->ERFIRSTSTAMP2);
pTimeStamp->HOUR= RTC_ER_TIMESTAMP_HOUR(LPC_RTC->ERFIRSTSTAMP2);
pTimeStamp->DOY = RTC_ER_TIMESTAMP_DOY(LPC_RTC->ERFIRSTSTAMP2);
break;
default:
break;
}
return SUCCESS;
}
/*********************************************************************//**
* @brief Get the timestamp of the last event on a given channel.
* @param[in] channel Channel number (It should be 0~2)
* @param[in] pTimeStamp point to the buffer
* @return SUCCESS/ERROR
**********************************************************************/
Status RTC_ER_GetLastTimeStamp(uint8_t channel, RTC_ER_TIMESTAMP_Type* pTimeStamp)
{
if(pTimeStamp == NULL)
return ERROR;
switch(channel)
{
case 0:
if((LPC_RTC->ERSTATUS & (1<<RTC_ER_STATUS_EV0_BIT)) == 0)
return ERROR;
pTimeStamp->SEC = RTC_ER_TIMESTAMP_SEC(LPC_RTC->ERLASTSTAMP0);
pTimeStamp->MIN= RTC_ER_TIMESTAMP_MIN(LPC_RTC->ERLASTSTAMP0);
pTimeStamp->HOUR= RTC_ER_TIMESTAMP_HOUR(LPC_RTC->ERLASTSTAMP0);
pTimeStamp->DOY = RTC_ER_TIMESTAMP_DOY(LPC_RTC->ERLASTSTAMP0);
break;
case 1:
if((LPC_RTC->ERSTATUS & (1<<RTC_ER_STATUS_EV1_BIT)) == 0)
return ERROR;
pTimeStamp->SEC = RTC_ER_TIMESTAMP_SEC(LPC_RTC->ERLASTSTAMP1);
pTimeStamp->MIN= RTC_ER_TIMESTAMP_MIN(LPC_RTC->ERLASTSTAMP1);
pTimeStamp->HOUR= RTC_ER_TIMESTAMP_HOUR(LPC_RTC->ERLASTSTAMP1);
pTimeStamp->DOY = RTC_ER_TIMESTAMP_DOY(LPC_RTC->ERLASTSTAMP1);
break;
case 2:
if((LPC_RTC->ERSTATUS & (1<<RTC_ER_STATUS_EV2_BIT)) == 0)
return ERROR;
pTimeStamp->SEC = RTC_ER_TIMESTAMP_SEC(LPC_RTC->ERLASTSTAMP2);
pTimeStamp->MIN= RTC_ER_TIMESTAMP_MIN(LPC_RTC->ERLASTSTAMP2);
pTimeStamp->HOUR= RTC_ER_TIMESTAMP_HOUR(LPC_RTC->ERLASTSTAMP2);
pTimeStamp->DOY = RTC_ER_TIMESTAMP_DOY(LPC_RTC->ERLASTSTAMP2);
break;
default:
break;
}
return SUCCESS;
}
/**
* @}
*/
#endif /*_RTC*/
/**
* @}
*/
/* --------------------------------- End Of File ------------------------------ */