Hey there,
I'm trying to access STM32G071's backup register TAMP_BKP0R, PWR_CR1 is set successfully, however I can't store anything in the backup register.
enum backup_reg{foo0, foo1, foo2, LOW_POWER_RESET};
RCC_APBENR1 |= RCC_APBENR1_PWREN_MASK;
/* Disabling backup domain write protection */
PWR_CR1 |= PWR_CR1_DBP_MASK;
/* RTC clock enable */
RCC_BDCR |= RCC_BDCR_RTCSEL_MASK;
RCC_BDCR|= RCC_BDCR_RTCEN_MASK;
TAMP_BKP0R = LOW_POWER_RESET;
