/*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);
uint32_t rtcBaseAddr = g_rtcBaseAddr[instance];
uint32_t srcClock = 0;
uint32_t seconds = 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_GetExternalRefClock32kFreq()) != 32768U)
{
/* As the seconds register will not increment every second, we need to adjust the value
* programmed to the seconds register */
seconds = seconds / (32768U / srcClock);
}
/* Set time in seconds */
RTC_HAL_SetDatetimeInsecs(rtcBaseAddr, seconds);
return true;
}
/*FUNCTION**********************************************************************
*
* Function Name : CLOCK_SYS_GetLptmrFreq
* Description : Gets LPTMRx pre-scaler/glitch filter clock frequency.
* This function gets the LPTMRx pre-scaler/glitch filter clock frequency.
*
*END**************************************************************************/
uint32_t CLOCK_SYS_GetLptmrFreq(uint32_t instance, clock_lptmr_src_t lptmrSrc)
{
uint32_t freq;
switch (lptmrSrc)
{
case kClockLptmrSrcMcgIrClk: /* MCG out clock */
freq = CLOCK_HAL_GetInternalRefClk(MCG);
break;
case kClockLptmrSrcLpoClk: /* LPO clock */
freq = CLOCK_SYS_GetLpoClockFreq();
break;
case kClockLptmrSrcEr32kClk: /* ERCLK32K clock */
freq = CLOCK_SYS_GetExternalRefClock32kFreq();
break;
case kClockLptmrSrcOsc0erClkUndiv: /* OSC0ERCLKUDIV clock */
freq = CLOCK_SYS_GetOsc0ExternalRefClockUndivFreq();
break;
default:
freq = 0U;
break;
}
return freq;
}
clock_manager_error_code_t CLOCK_SYS_GetFreq(clock_names_t clockName,
uint32_t *frequency)
{
clock_manager_error_code_t returnCode = kClockManagerSuccess;
switch (clockName)
{
case kCoreClock:
case kSystemClock:
*frequency = CLOCK_SYS_GetCoreClockFreq();
break;
case kPlatformClock:
*frequency = CLOCK_SYS_GetSystemClockFreq();
break;
case kBusClock:
*frequency = CLOCK_SYS_GetBusClockFreq();
break;
case kFlexBusClock:
*frequency = CLOCK_SYS_GetFlexbusFreq();
break;
case kFlashClock:
*frequency = CLOCK_SYS_GetFlashClockFreq();
break;
case kOsc32kClock:
*frequency = CLOCK_SYS_GetExternalRefClock32kFreq();
break;
case kOsc0ErClock:
*frequency = CLOCK_SYS_GetOsc0ExternalRefClockFreq();
break;
case kRtcoutClock:
*frequency = CLOCK_SYS_GetRtcOutFreq();
break;
case kMcgFfClock:
*frequency = CLOCK_SYS_GetFixedFreqClockFreq();
break;
case kMcgFllClock:
*frequency = CLOCK_HAL_GetFllClk(MCG_BASE);
break;
case kMcgPll0Clock:
*frequency = CLOCK_HAL_GetPll0Clk(MCG_BASE);
break;
case kMcgOutClock:
*frequency = CLOCK_HAL_GetOutClk(MCG_BASE);
break;
case kMcgIrClock:
*frequency = CLOCK_HAL_GetInternalRefClk(MCG_BASE);
break;
case kLpoClock:
*frequency = CLOCK_SYS_GetLpoClockFreq();
break;
default:
*frequency = 0U;
returnCode = kClockManagerNoSuchClockName;
break;
}
return returnCode;
}
/*FUNCTION**********************************************************************
*
* Function Name : CLOCK_SYS_GetRtcOutFreq
* Description : Gets the RTC_CLKOUT frequency.
* This function gets RTC_CLKOUT clock frequency.
*
*END**************************************************************************/
uint32_t CLOCK_SYS_GetRtcOutFreq(void)
{
if (kClockRtcoutSrc1Hz == CLOCK_SYS_GetRtcOutSrc())
{
return CLOCK_SYS_GetExternalRefClock32kFreq() >> 15U;
}
else
{
return CLOCK_SYS_GetOsc0ExternalRefClockFreq();
/*FUNCTION**********************************************************************
*
* Function Name : CLOCK_SYS_GetRtcOutFreq
* Description : Gets the RTC_CLKOUT frequency.
* This function gets RTC_CLKOUT clock frequency.
*
*END**************************************************************************/
uint32_t CLOCK_SYS_GetRtcOutFreq(void)
{
#if FSL_FEATURE_SIM_OPT_HAS_RTC_CLOCK_OUT_SELECTION
if (kClockRtcoutSrc1Hz == CLOCK_SYS_GetRtcOutSrc())
{
return CLOCK_SYS_GetExternalRefClock32kFreq() >> 15U;
}
else
{
#endif
return CLOCK_SYS_GetOsc0ExternalRefClockFreq();
/*FUNCTION**********************************************************************
*
* Function Name : rtc_get_alarm
* Description : returns the RTC alarm time.
* This function will first get alarm time in seconds, then convert the seconds to
* date time.
*
*END**************************************************************************/
void RTC_DRV_GetAlarm(uint32_t instance, rtc_datetime_t *date)
{
assert(date);
uint32_t alrmSeconds = 0;
uint32_t srcClock = 0;
/* Get alarm in seconds */
alrmSeconds = RTC_HAL_GetAlarmReg(g_rtcBaseAddr[instance]);
if ((srcClock = CLOCK_SYS_GetExternalRefClock32kFreq()) != 32768U)
{
/* Re-adjust the alarm value to match the method used to program it */
alrmSeconds = (alrmSeconds * (32768U / srcClock));
}
RTC_HAL_ConvertSecsToDatetime(&alrmSeconds, date);
}
/*FUNCTION**********************************************************************
*
* Function Name : RTC_DRV_GetDatetime
* Description : gets the actual RTC time and stores it in the given time struct.
* This function will get the actual RTC time and stores it in the given time
* struct.
*
*END**************************************************************************/
void RTC_DRV_GetDatetime(uint32_t instance, rtc_datetime_t *datetime)
{
assert(datetime);
uint32_t rtcBaseAddr = g_rtcBaseAddr[instance];
uint32_t seconds = 0;
uint32_t srcClock = 0;
RTC_HAL_GetDatetimeInSecs(rtcBaseAddr, &seconds);
if ((srcClock = CLOCK_SYS_GetExternalRefClock32kFreq()) != 32768U)
{
/* In case the input clock to the RTC counter is not 32KHz, the seconds register will not
* increment every second, therefore the seconds register value needs to be adjusted.
* to get actual seconds. We then add the prescaler register value to the seconds.
*/
seconds = (seconds * (32768U / srcClock)) + (RTC_HAL_GetPrescaler(rtcBaseAddr) / srcClock);
}
RTC_HAL_ConvertSecsToDatetime(&seconds, datetime);
}
/*FUNCTION**********************************************************************
*
* Function Name : RTC_DRV_SetAlarm
* Description : sets the RTC alarm.
* This function will first check if the date time has correct format. If yes,
* convert the date time to seconds, and set the alarm in seconds.
*
*END**************************************************************************/
bool RTC_DRV_SetAlarm(uint32_t instance, rtc_datetime_t *alarmTime, bool enableAlarmInterrupt)
{
assert(alarmTime);
uint32_t rtcBaseAddr = g_rtcBaseAddr[instance];
uint32_t srcClock = 0;
uint32_t alrmSeconds = 0;
uint32_t currSeconds = 0;
/* Return error if the alarm time provided is not valid */
if (!(RTC_HAL_IsDatetimeCorrectFormat(alarmTime)))
{
return false;
}
RTC_HAL_ConvertDatetimeToSecs(alarmTime, &alrmSeconds);
/* Get the current time */
currSeconds = RTC_HAL_GetSecsReg(rtcBaseAddr);
if ((srcClock = CLOCK_SYS_GetExternalRefClock32kFreq()) != 32768U)
{
/* As the seconds register will not increment every second, we need to adjust the value
* programmed to the alarm register */
alrmSeconds = alrmSeconds / (32768U / srcClock);
}
/* Make sure the alarm is for a future time */
if (alrmSeconds < currSeconds)
{
return false;
}
/* set alarm in seconds*/
RTC_HAL_SetAlarmReg(rtcBaseAddr, alrmSeconds);
/* Activate or deactivate the Alarm interrupt based on user choice */
RTC_HAL_SetAlarmIntCmd(rtcBaseAddr, enableAlarmInterrupt);
return true;
}