/*FUNCTION**********************************************************************
*
* Function Name : RTC_DRV_SetDatetime
* Description : Sets the RTC date and time according to the given time struct.
* This function will set the RTC date and time according to the given time
* struct, if start_after_set is true, the RTC oscillator will be enabled and
* the counter will start.
*
*END**************************************************************************/
bool RTC_DRV_SetDatetime(uint32_t instance, rtc_datetime_t *datetime)
{
assert(datetime);
RTC_Type *rtcBase = g_rtcBase[instance];
uint32_t srcClock = 0;
uint32_t seconds = 0;
uint16_t preScaler = 0;
uint64_t tmp = 0;
/* Return error if the time provided is not valid */
if (!(RTC_HAL_IsDatetimeCorrectFormat(datetime)))
{
return false;
}
RTC_HAL_ConvertDatetimeToSecs(datetime, &seconds);
if ((srcClock = CLOCK_SYS_GetRtcFreq(0U)) != 32768U)
{
/* As the seconds register will not increment every second, we need to adjust the value
* programmed to the seconds register */
tmp = (uint64_t)seconds * (uint64_t)srcClock;
preScaler = (uint32_t)(tmp & 0x7FFFU);
seconds = (uint32_t)(tmp >> 15U);
}
void RtcInit( void )
{
if ( RtcInitalized == false ) {
rtc_datetime_t datetime;
uint32_t srcClock = 0;
uint32_t seconds = 0;
uint16_t preScaler = 0;
uint64_t tmp = 0;
/* Enable clock gate to RTC module */
CLOCK_SYS_EnableRtcClock(0U);
/* Initialize the general configuration for RTC module.*/
RTC_HAL_Init (RTC_BASE_PTR);
/* Clear pending interrupts before enabling them */
NVIC_ClearPendingIRQ (RTC_IRQn);
INT_SYS_EnableIRQ(RTC_IRQn);
/* Configure RTC external clock */
CLOCK_SYS_RtcOscInit(0U, &rtcOscConfig);
// Set a start date time and start RT.
datetime.year = 2014U;
datetime.month = 12U;
datetime.day = 25U;
datetime.hour = 19U;
datetime.minute = 0;
datetime.second = 0;
RTC_HAL_ConvertDatetimeToSecs(&datetime, &seconds);
if ( (srcClock = CLOCK_SYS_GetRtcFreq(0U)) != 32768U ) {
/* As the seconds register will not increment every second, we need to adjust the value
* programmed to the seconds register */
tmp = (uint64_t) seconds * (uint64_t) srcClock;
preScaler = (uint32_t)(tmp & 0x7FFFU);
seconds = (uint32_t)(tmp >> 15U);
}
