ST STM32L0x3 Reference Manual page 1010

Code examples
RTC->TR
RTC->ISR
RTC->WPR
RTC->WPR
A.15.2 RTC alarm configuration code example
/* (1) Write access for RTC registers */
/* (2) Disable alarm A to modify it */
/* (3) Wait until it is allow to modify alarm A value */
/* (4) Modify alarm A mask to have an interrupt each 1Hz */
/* (5) Enable alarm A and alarm A interrupt */
/* (6) Disable write access */
RTC->WPR
RTC->WPR
RTC->CR
while((RTC->ISR
{
/* add time out here for a robust application */
}
RTC->ALRMAR
RTC_ALRMAR_MSK1;
RTC->CR
RTC->WPR
RTC->WPR
A.15.3 RTC WUT configuration code example
/* (1) Write access for RTC registers */
/* (2) Disable wake up timerto modify it */
/* (3) Wait until it is allow to modify wake up reload value */
/* (4) Modify wake up value reload counter to have a wake up each 1Hz */
/* (5) Enable wake up counter and wake up interrupt */
/* (6) Disable write access */
RTC->WPR
RTC->WPR
RTC->CR
while((RTC->ISR
{
/* add time out here for a robust application */
}
RTC->WUTR
RTC->CR
RTC->WPR
RTC->WPR
1010/1043
= RTC_TR_PM | Time;
=~ RTC_ISR_INIT;
= 0xFE; /* (7) */
= 0x64; /* (7) */
= 0xCA; /* (1) */
= 0x53; /* (1) */
&=~ RTC_CR_ALRAE;
& RTC_ISR_ALRAWF) != RTC_ISR_ALRAWF)
= RTC_ALRMAR_MSK4
/* (4) */
= RTC_CR_ALRAIE | RTC_CR_ALRAE;
= 0xFE; /* (6) */
= 0x64; /* (6) */
= 0xCA; /* (1) */
= 0x53; /* (1) */
&=~ RTC_CR_WUTE; /* (2) */
& RTC_ISR_WUTWF) != RTC_ISR_WUTWF)
= 0x9C0; /* (4) */
= RTC_CR_WUTE | RTC_CR_WUTIE;
= 0xFE; /* (6) */
= 0x64; /* (6) */
/* (5) */
/* (6) */
/* (2) */
| RTC_ALRMAR_MSK3
/* (5) */
/* (5) */
RM0367 Rev 7
/* (3) */
| RTC_ALRMAR_MSK2
/* (3) */
RM0367
|