# STM32 Cube LL RTC # Copyright (c) 2018, Linaro Limited # SPDX-License-Identifier: Apache-2.0 menuconfig COUNTER_RTC_STM32 bool "STM32 Counter RTC driver" default y if !RTC depends on DT_HAS_ST_STM32_RTC_ENABLED select USE_STM32_LL_RTC select USE_STM32_LL_PWR select USE_STM32_LL_RCC select USE_STM32_LL_EXTI help Build RTC driver for STM32 SoCs. Tested on STM32 C0, F0, F2, F3, F4, F7, G0, G4, H7, L1, L4, L5, U5 series if COUNTER_RTC_STM32 config COUNTER_RTC_STM32_SAVE_VALUE_BETWEEN_RESETS bool "Save rtc time value between resets" default n help Keep the counter value after each reset. config COUNTER_RTC_STM32_SUBSECONDS bool "Use the subseconds as a basic tick." depends on !SOC_SERIES_STM32F1X help Use the subseconds as the basic time tick. It increases resolution of the counter. The frequency of the time is RTC Source Clock divided by 2. It is the clock after the first asynchronous prescaler. The config increases power consumption. endif # COUNTER_RTC_STM32