| # Kconfig - STM32 RTC configuration options |
| # |
| # Copyright (c) 2018 Workaround GmbH |
| # Copyright (c) 2018 Allterco Robotics |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| |
| config RTC_STM32 |
| bool "STM32 RTC Driver" |
| depends on SOC_FAMILY_STM32 |
| select USE_STM32_LL_RTC |
| select USE_STM32_LL_PWR |
| select USE_STM32_LL_RCC |
| select USE_STM32_LL_EXTI |
| select NEWLIB_LIBC |
| help |
| Build RTC driver for STM32x4 SoCs. Tested on STM32L4 series. |
| |
| choice RTC_STM32_CLOCK_SRC |
| bool "RTC clock source" |
| depends on RTC_STM32 |
| |
| config RTC_STM32_CLOCK_LSI |
| bool "LSI" |
| help |
| Use LSI as RTC clock |
| |
| config RTC_STM32_CLOCK_LSE |
| bool "LSE" |
| help |
| Use LSE as RTC clock |
| |
| endchoice #RTC_STM32_CLOCK_SRC |
| |
| choice RTC_STM32_LSE_DRIVE |
| prompt "LSE oscillator drive capability" |
| depends on RTC_STM32_CLOCK_LSE |
| |
| config RTC_STM32_LSE_DRIVE_LOW |
| bool "Low" |
| help |
| Xtal mode lower driving capability |
| |
| config RTC_STM32_LSE_DRIVE_MEDIUMLOW |
| bool "Medium Low" |
| help |
| Xtal mode medium low driving capability |
| |
| config RTC_STM32_LSE_DRIVE_MEDIUMHIGH |
| bool "Medium High" |
| help |
| Xtal mode medium high driving capability |
| |
| config RTC_STM32_LSE_DRIVE_HIGH |
| bool "High" |
| help |
| Xtal mode higher driving capability |
| |
| endchoice |
| |
| config RTC_STM32_LSE_DRIVE_STRENGTH |
| hex |
| default 0x00000000 if RTC_STM32_LSE_DRIVE_LOW |
| default 0x00000008 if RTC_STM32_LSE_DRIVE_MEDIUMLOW |
| default 0x00000010 if RTC_STM32_LSE_DRIVE_MEDIUMHIGH |
| default 0x00000018 if RTC_STM32_LSE_DRIVE_HIGH |
