void InitializeRealTimeClock( void )
{
Timer_Initialise();
// stop it
RTCCTL01 = RTCHOLD;
// use calibration data to adjust real time clock frequency
if ( QueryCalibrationValid() )
{
signed char RtcCalibrationValue = GetRtcCalibrationValue();
if ( RtcCalibrationValue < 0 )
{
RtcCalibrationValue = -1 * RtcCalibrationValue;
RTCCTL2 = RtcCalibrationValue & RTCCAL_VALUE_MASK;
}
else
{
RTCCTL2 = RtcCalibrationValue & RTCCAL_VALUE_MASK;
/* adjust up */
RTCCTL2 |= RTCCALS;
}
}
// Set the counter for RTC mode
RTCCTL01 |= RTCMODE;
// set 128 Hz rate for prescale 0 interrupt
RTCPS0CTL |= RT0IP_7;
// enable 1 pulse per second interrupt using prescale 1
RTCPS1CTL |= RT1IP_6 | RT1PSIE;
// 1 Hz calibration output
RTCCTL23 |= RTCCALF_3;
// setting the peripheral selection bit makes the other I/O control a don't care
// P2.4 = 1 Hz RTC calibration output
// Direction needs to be set as output
RTC_1HZ_PORT_SEL |= RTC_1HZ_BIT;
RTC_1HZ_PORT_DIR |= RTC_1HZ_BIT;
// These calls are to asm level patch functions provided by
// TI for the MSP430F5438
SetRTCYEAR((unsigned int)0x07db);
SetRTCMON((unsigned int)5);
SetRTCDAY((unsigned int)23);
SetRTCDOW((unsigned int)5);
SetRTCHOUR((unsigned int)23);
SetRTCMIN((unsigned int)58);
SetRTCSEC((unsigned int)0);
// Enable the RTC
RTCCTL01 &= ~RTCHOLD;
}
static void SaveDate(NumberEntry *dateEditor)
{
int d = dateEditor->RangeValueAt(0, 2);
int m = dateEditor->RangeValueAt(3, 2);
int y = dateEditor->RangeValueAt(6, 4);
SetRTCYEAR(y);
SetRTCMON(m);
SetRTCDAY(d);
SetRTCDOW(DayOfWeek(y, m, d));
}
//***************************************************************************//
// //
// 初始化RTC //
// //
//***************************************************************************//
void Init_RTC(void)
{
RTCCTL01 = RTCSSEL_0 + RTCMODE ; // 时钟模式,十六进制格式
SetRTCYEAR(2010) ;
SetRTCMON(10) ;
SetRTCDAY(24) ;
SetRTCDOW(0) ;
SetRTCHOUR(10) ;
SetRTCMIN(9) ;
SetRTCSEC(45) ;
}
void halRtcSet(RTC_DATA* pRtcData)
{
// Stop the RTC
RTCCTL01 |= RTCHOLD;
// These calls are to asm level patch functions provided by TI for the MSP430F5438
tWordByteUnion temp;
temp.byte.b0 = pRtcData->Year & 0xFF;
temp.byte.b1 = (pRtcData->Year >> 8) & 0xFF;
SetRTCYEAR((unsigned int)(temp.word));
SetRTCMON((unsigned int)(pRtcData->Month));
SetRTCDAY((unsigned int)(pRtcData->DayOfMonth));
SetRTCDOW((unsigned int)(pRtcData->DayOfWeek));
SetRTCHOUR((unsigned int)(pRtcData->Hour));
SetRTCMIN((unsigned int)(pRtcData->Minute));
SetRTCSEC((unsigned int)(pRtcData->Second));
// Enable the RTC
RTCCTL01 &= ~RTCHOLD;
}