/* Sets the bypass shadow bit in RTC_CR. 
Requires unlocking backup domain write protection (PWR_CR_DBP)  */
void rtc_enable_bypass_shadow_register(void)
/* Sets the bypass shadow bit in RTC_CR. 
Requires unlocking backup domain write protection (PWR_CR_DBP)  */
void rtc_enable_bypass_shadow_register(void)
{
	RTC_CR |= RTC_CR_BYPSHAD;
}