void RTCC_Enable(void)
{
RTCC_SetWriteEnable();
//RTCCON |= (1 << 15);
RTCCONSET = 0x8000; // turn on the RTCC
while (!(RTCCON & 0x40)); // wait for clock to be turned on
RTCC_SetWriteDisable();
}
void RTCC_Disable(void)
{
RTCC_SetWriteEnable();
//RTCCON |= !(1 << 15);
RTCCONCLR = 0x8000; // turn off the RTCC
// TODO: RTCCON.RTCSYNC, RTCCON.HALFSEC and RTCCON.RTCOE
while (RTCCON & 0x40); // wait for clock to be turned off
// bit 6 RTCCLKON: RTCC Clock Enable Status bit
RTCC_SetWriteDisable();
}
void RTCC_SetDate(unsigned long dt)
{
RTCC_SetWriteEnable();
RTCCONCLR = 0x8000; // turn off the RTCC
//Delayus(50);
while (RTCCON & 0x40); // wait for clock to be turned off
RTCDATE = dt; // Set date
RTCCONSET = 0x8000; // turn on the RTCC
//Delayus(50);
while (!(RTCCON & 0x40)); // wait for clock to be turned on
RTCC_SetWriteDisable();
}
void RTCC_SetTime(unsigned long tm)
{
RTCC_SetWriteEnable();
RTCCONCLR = 0x8000; // turn off the RTCC
//Delayus(50);
while (RTCCON & 0x40); // wait for clock to be turned off
RTCTIME = tm; // Set time
RTCCONSET = 0x8000; // turn on the RTCC
//Delayus(50);
while (!(RTCCON & 0x40)); // wait for clock to be turned on
RTCC_SetWriteDisable();
}
void RTCC_SetCalibration(int cal)
{
rtccTime t0;
if (cal < -512) cal = -512;
if (cal > 511) cal = 511;
if (RTCCON & 0x8000) // if RTCC is ON
{
t0 = RTCC_GetTime();
if ((t0.seconds & 0xFF) == 00) // we're at second 00, wait auto-adjust to be performed
while(!(RTCCON & 0x2)); // wait until second half...
}
RTCC_SetWriteEnable();
RTCCONCLR = 0x03FF0000; // clear the calibration
RTCCONbits.CAL = cal;
RTCC_SetWriteDisable();
}
void RTCC_SetAlarmTime(u32 alTime)
{
rtccTime t0;
u8 dummy;
t0.l = alTime;
RTCC_SetWriteEnable();
RTCC_Wait();
ALRMCFG = 0x00; // clear the ALRMEN, CHIME, AMASK and ARPT;
ALRMRPT = 0; // clear Alarm repeat counter
ALRMCFGbits.ALRMPTR1 = 0;
ALRMCFGbits.ALRMPTR0 = 1;
// ALRMPTR = 01 = Weekday/Hours
ALRMVALL = t0.hours;
dummy = ALRMVALH; // dummy read of RTCVALH to auto-decrement RTCPTR
// ALRMPTR = 00 = Minutes/Seconds
ALRMVALL = t0.seconds;
ALRMVALH = t0.minutes;
RTCC_SetWriteDisable();
}
void RTCC_SetAlarmDate(u32 alDate)
{
rtccDate d0;
u8 dummy;
d0.l = alDate;
RTCC_SetWriteEnable();
RTCC_Wait();
ALRMCFG = 0x00; // clear the ALRMEN, CHIME, AMASK and ARPT;
ALRMRPT = 0; // clear Alarm repeat counter
ALRMCFGbits.ALRMPTR1 = 1;
ALRMCFGbits.ALRMPTR0 = 1;
// ALRMPTR = 11 = Reserved/Year
ALRMVALL = d0.year;
dummy = ALRMVALH; // dummy read of RTCVALH to auto-decrement RTCPTR
// ALRMPTR = 10 = Month/Day
ALRMVALL = d0.dayofmonth;
ALRMVALH = d0.month;
// ALRMPTR = 01 = Weekday/Hours
ALRMVALH = d0.dayofweek;
// ALRMPTR = 00 = Minutes/Seconds
RTCC_SetWriteDisable();
}