diff --git a/radio/src/targets/common/arm/stm32/board_common.h b/radio/src/targets/common/arm/stm32/board_common.h
index dde52ca63..0f9d7b4b9 100644
--- a/radio/src/targets/common/arm/stm32/board_common.h
+++ b/radio/src/targets/common/arm/stm32/board_common.h
@@ -45,7 +45,6 @@
   #include "stm32f4xx_tim.h"
   #include "stm32f4xx_adc.h"
   #include "stm32f4xx_spi.h"
-  #include "stm32f4xx_rtc.h"
   #include "stm32f4xx_pwr.h"
   #include "stm32f4xx_dma.h"
   #include "stm32f4xx_usart.h"
@@ -61,7 +60,6 @@
   #include "stm32f2xx_tim.h"
   #include "stm32f2xx_adc.h"
   #include "stm32f2xx_spi.h"
-  #include "stm32f2xx_rtc.h"
   #include "stm32f2xx_pwr.h"
   #include "stm32f2xx_dma.h"
   #include "stm32f2xx_usart.h"
diff --git a/radio/src/targets/common/arm/stm32/f2/CMakeLists.txt b/radio/src/targets/common/arm/stm32/f2/CMakeLists.txt
index 81100daf9..3557d96a5 100644
--- a/radio/src/targets/common/arm/stm32/f2/CMakeLists.txt
+++ b/radio/src/targets/common/arm/stm32/f2/CMakeLists.txt
@@ -16,7 +16,11 @@ if(NOT NATIVE_BUILD)
     ${STM32CUBE_DIR}/Src/stm32f2xx_ll_rcc.c
     ${STM32CUBE_DIR}/Src/stm32f2xx_ll_exti.c
     # HAL drivers
+    ${STM32CUBE_DIR}/Src/stm32f2xx_hal.c
+    ${STM32CUBE_DIR}/Src/stm32f2xx_hal_pwr.c
+    ${STM32CUBE_DIR}/Src/stm32f2xx_hal_pwr_ex.c
     ${STM32CUBE_DIR}/Src/stm32f2xx_hal_rcc.c
+    ${STM32CUBE_DIR}/Src/stm32f2xx_hal_rtc.c
     ${STM32CUBE_DIR}/Src/stm32f2xx_hal_i2c.c
     )
 
@@ -49,7 +53,6 @@ add_library(stm32_stdperiph OBJECT EXCLUDE_FROM_ALL
   ${STM32_STDPERIPH_DIR}/src/stm32f2xx_syscfg.c
   ${STM32_STDPERIPH_DIR}/src/stm32f2xx_spi.c
   ${STM32_STDPERIPH_DIR}/src/stm32f2xx_dma.c
-  ${STM32_STDPERIPH_DIR}/src/stm32f2xx_rtc.c
   ${STM32_STDPERIPH_DIR}/src/stm32f2xx_pwr.c
   ${STM32_STDPERIPH_DIR}/src/stm32f2xx_usart.c
   ${STM32_STDPERIPH_DIR}/src/stm32f2xx_adc.c
diff --git a/radio/src/targets/common/arm/stm32/f4/CMakeLists.txt b/radio/src/targets/common/arm/stm32/f4/CMakeLists.txt
index e2851dd89..14a1c14ed 100644
--- a/radio/src/targets/common/arm/stm32/f4/CMakeLists.txt
+++ b/radio/src/targets/common/arm/stm32/f4/CMakeLists.txt
@@ -15,7 +15,11 @@ if(NOT NATIVE_BUILD)
     ${STM32CUBE_DIR}/Src/stm32f4xx_ll_rcc.c
     ${STM32CUBE_DIR}/Src/stm32f4xx_ll_exti.c
     # HAL drivers
+    ${STM32CUBE_DIR}/Src/stm32f4xx_hal.c
+    ${STM32CUBE_DIR}/Src/stm32f4xx_hal_pwr.c
+    ${STM32CUBE_DIR}/Src/stm32f4xx_hal_pwr_ex.c
     ${STM32CUBE_DIR}/Src/stm32f4xx_hal_rcc.c
+    ${STM32CUBE_DIR}/Src/stm32f4xx_hal_rtc.c
     ${STM32CUBE_DIR}/Src/stm32f4xx_hal_i2c.c
     ${STM32CUBE_DIR}/Src/stm32f4xx_hal_i2c_ex.c
     )
@@ -48,7 +52,6 @@ set(STM32_STDPERIPH_SRC
   ${STM32_STDPERIPH_DIR}/src/stm32f4xx_syscfg.c
   ${STM32_STDPERIPH_DIR}/src/stm32f4xx_spi.c
   ${STM32_STDPERIPH_DIR}/src/stm32f4xx_dma.c
-  ${STM32_STDPERIPH_DIR}/src/stm32f4xx_rtc.c
   ${STM32_STDPERIPH_DIR}/src/stm32f4xx_pwr.c
   ${STM32_STDPERIPH_DIR}/src/stm32f4xx_usart.c
   ${STM32_STDPERIPH_DIR}/src/stm32f4xx_adc.c
diff --git a/radio/src/targets/common/arm/stm32/rtc_driver.cpp b/radio/src/targets/common/arm/stm32/rtc_driver.cpp
index 26281bc60..bcf2ff150 100644
--- a/radio/src/targets/common/arm/stm32/rtc_driver.cpp
+++ b/radio/src/targets/common/arm/stm32/rtc_driver.cpp
@@ -19,28 +19,26 @@
  * GNU General Public License for more details.
  */
 
-#include "board.h"
+#include "stm32_hal.h"
 #include "rtc.h"
 
+RTC_HandleTypeDef rtc = {};
+
 void rtcSetTime(const struct gtm * t)
 {
   g_ms100 = 0; // start of next second begins now
 
-  RTC_TimeTypeDef RTC_TimeStruct;
-  RTC_DateTypeDef RTC_DateStruct;
+  RTC_TimeTypeDef RTC_TimeStruct = {};
+  RTC_DateTypeDef RTC_DateStruct = {};
 
-  RTC_TimeStructInit(&RTC_TimeStruct);
-  RTC_DateStructInit(&RTC_DateStruct);
-
-  RTC_TimeStruct.RTC_Hours = t->tm_hour;
-  RTC_TimeStruct.RTC_Minutes = t->tm_min;
-  RTC_TimeStruct.RTC_Seconds = t->tm_sec;
-  RTC_DateStruct.RTC_Year = t->tm_year - 100;
-  RTC_DateStruct.RTC_Month = t->tm_mon + 1;
-  RTC_DateStruct.RTC_Date = t->tm_mday;
-  
-  RTC_SetTime(RTC_Format_BIN, &RTC_TimeStruct);
-  RTC_SetDate(RTC_Format_BIN, &RTC_DateStruct);
+  RTC_TimeStruct.Hours = t->tm_hour;
+  RTC_TimeStruct.Minutes = t->tm_min;
+  RTC_TimeStruct.Seconds = t->tm_sec;
+  RTC_DateStruct.Year = t->tm_year - 100;
+  RTC_DateStruct.Month = t->tm_mon + 1;
+  RTC_DateStruct.Date = t->tm_mday;
+  HAL_RTC_SetTime(&rtc, &RTC_TimeStruct, RTC_FORMAT_BIN);
+  HAL_RTC_SetDate(&rtc, &RTC_DateStruct, RTC_FORMAT_BIN);
 }
 
 void rtcGetTime(struct gtm * t)
@@ -48,50 +46,53 @@ void rtcGetTime(struct gtm * t)
   RTC_TimeTypeDef RTC_TimeStruct;
   RTC_DateTypeDef RTC_DateStruct;
 
-  RTC_GetTime(RTC_Format_BIN, &RTC_TimeStruct);
-  RTC_GetDate(RTC_Format_BIN, &RTC_DateStruct);
+  HAL_RTC_GetTime(&rtc, &RTC_TimeStruct, RTC_FORMAT_BIN);
+  HAL_RTC_GetDate(&rtc, &RTC_DateStruct, RTC_FORMAT_BIN);
   
-  t->tm_hour = RTC_TimeStruct.RTC_Hours;
-  t->tm_min  = RTC_TimeStruct.RTC_Minutes;
-  t->tm_sec  = RTC_TimeStruct.RTC_Seconds;
-  t->tm_year = RTC_DateStruct.RTC_Year + 100; // STM32 year is two decimals only (so base is currently 2000), gtm is based on number of years since 1900
-  t->tm_mon  = RTC_DateStruct.RTC_Month - 1;
-  t->tm_mday = RTC_DateStruct.RTC_Date;
+  t->tm_hour = RTC_TimeStruct.Hours;
+  t->tm_min  = RTC_TimeStruct.Minutes;
+  t->tm_sec  = RTC_TimeStruct.Seconds;
+  t->tm_year = RTC_DateStruct.Year + 100; // STM32 year is two decimals only (so base is currently 2000), gtm is based on number of years since 1900
+  t->tm_mon  = RTC_DateStruct.Month - 1;
+  t->tm_mday = RTC_DateStruct.Date;
 }
 
 void rtcInit()
 {
-  RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
-  PWR_BackupAccessCmd(ENABLE);
-  RCC_LSEConfig(RCC_LSE_ON);
-  
-  // Prevent lockup in case of 32kHz oscillator failure
-  uint32_t i = 0;
-  while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET) {
-    if (++i > 1000000)
-      return;
+  rtc.Instance = RTC;
+  __HAL_RCC_PWR_CLK_ENABLE();
+  HAL_PWR_EnableBkUpAccess();
+
+  // Enable LSE Oscillator
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
+  RCC_OscInitStruct.PLL.PLLState   = RCC_PLL_NONE;
+  RCC_OscInitStruct.LSEState       = RCC_LSE_ON;
+
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) == HAL_OK) {
+    __HAL_RCC_RTC_CLKPRESCALER(RCC_RTCCLKSOURCE_LSE);
+    __HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSE);
   }
-  
-  RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
-  RCC_RTCCLKCmd(ENABLE);
-  RTC_WaitForSynchro();
+
+  __HAL_RCC_RTC_ENABLE();
+  HAL_RTC_WaitForSynchro(&rtc);
 
 #if !defined(BOOT)
-  RTC_InitTypeDef RTC_InitStruct;
-
   // RTC time base = LSE / ((AsynchPrediv+1) * (SynchPrediv+1)) = 1 Hz*/
-  RTC_InitStruct.RTC_HourFormat = RTC_HourFormat_24;
-  RTC_InitStruct.RTC_AsynchPrediv = 127;
-  RTC_InitStruct.RTC_SynchPrediv = 255;
-  RTC_Init(&RTC_InitStruct);
+  rtc.Init.HourFormat = RTC_HOURFORMAT_24;
+  rtc.Init.AsynchPrediv = 127;
+  rtc.Init.SynchPrediv = 255;
+  rtc.Init.OutPut = RTC_OUTPUT_DISABLE;
+  rtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
+  rtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
+  HAL_RTC_Init(&rtc);
 
   struct gtm utm;
   rtcGetTime(&utm);
   g_rtcTime = gmktime(&utm);
 #endif
-
 #if defined(RTC_BACKUP_RAM) && !defined(BOOT)
-  RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_BKPSRAM, ENABLE);
-  PWR_BackupRegulatorCmd(ENABLE);
+  __HAL_RCC_BKPSRAM_CLK_ENABLE();
+  HAL_PWREx_EnableBkUpReg();
 #endif
 }
diff --git a/radio/src/targets/common/arm/stm32/stm32_hal.h b/radio/src/targets/common/arm/stm32/stm32_hal.h
index 90f829274..6a70a2114 100644
--- a/radio/src/targets/common/arm/stm32/stm32_hal.h
+++ b/radio/src/targets/common/arm/stm32/stm32_hal.h
@@ -25,8 +25,14 @@ extern "C" {
   #if defined(STM32F4)
     #include "CMSIS/Device/ST/STM32F4xx/Include/stm32f4xx.h"
     #include "stm32f4xx_hal.h"
+    #include "stm32f4xx_hal_rcc.h"
+    #include "stm32f4xx_hal_rtc.h"
+    #include "stm32f4xx_hal_pwr.h"
   #elif defined(STM32F2)
     #include "CMSIS/Device/ST/STM32F2xx/Include/stm32f2xx.h"
     #include "stm32f2xx_hal.h"
+    #include "stm32f2xx_hal_rcc.h"
+    #include "stm32f2xx_hal_rtc.h"
+    #include "stm32f2xx_hal_pwr.h"
   #endif
 }
diff --git a/radio/src/targets/common/arm/stm32/stm32f2xx_hal_conf.h b/radio/src/targets/common/arm/stm32/stm32f2xx_hal_conf.h
index 4d2ecc3eb..f23733325 100644
--- a/radio/src/targets/common/arm/stm32/stm32f2xx_hal_conf.h
+++ b/radio/src/targets/common/arm/stm32/stm32f2xx_hal_conf.h
@@ -58,10 +58,10 @@
 #define HAL_I2C_MODULE_ENABLED
 // #define HAL_I2S_MODULE_ENABLED
 // #define HAL_IWDG_MODULE_ENABLED
-// #define HAL_PWR_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
 #define HAL_RCC_MODULE_ENABLED
 // #define HAL_RNG_MODULE_ENABLED
-// #define HAL_RTC_MODULE_ENABLED
+#define HAL_RTC_MODULE_ENABLED
 // #define HAL_SD_MODULE_ENABLED
 // #define HAL_SPI_MODULE_ENABLED
 // #define HAL_TIM_MODULE_ENABLED
diff --git a/radio/src/targets/common/arm/stm32/stm32f4xx_hal_conf.h b/radio/src/targets/common/arm/stm32/stm32f4xx_hal_conf.h
index ced939d17..c457c731e 100644
--- a/radio/src/targets/common/arm/stm32/stm32f4xx_hal_conf.h
+++ b/radio/src/targets/common/arm/stm32/stm32f4xx_hal_conf.h
@@ -64,11 +64,11 @@
 // #define HAL_IWDG_MODULE_ENABLED
 // #define HAL_LTDC_MODULE_ENABLED
 // #define HAL_DSI_MODULE_ENABLED
-// #define HAL_PWR_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
 // #define HAL_QSPI_MODULE_ENABLED
 #define HAL_RCC_MODULE_ENABLED
 // #define HAL_RNG_MODULE_ENABLED
-// #define HAL_RTC_MODULE_ENABLED
+#define HAL_RTC_MODULE_ENABLED
 // #define HAL_SAI_MODULE_ENABLED
 // #define HAL_SD_MODULE_ENABLED
 // #define HAL_SPI_MODULE_ENABLED
diff --git a/radio/src/targets/simu/simpgmspace.cpp b/radio/src/targets/simu/simpgmspace.cpp
index fb3932624..11f21e635 100644
--- a/radio/src/targets/simu/simpgmspace.cpp
+++ b/radio/src/targets/simu/simpgmspace.cpp
@@ -614,33 +614,6 @@ ITStatus EXTI_GetITStatus(uint32_t EXTI_Line) { return RESET; }
 void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct) { }
 void EXTI_ClearITPendingBit(uint32_t EXTI_Line) { }
 
-// RTC fake functions
-ErrorStatus RTC_Init(RTC_InitTypeDef* RTC_InitStruct) { return SUCCESS; }
-void RTC_TimeStructInit(RTC_TimeTypeDef* RTC_TimeStruct) { }
-void RTC_DateStructInit(RTC_DateTypeDef* RTC_DateStruct) { }
-ErrorStatus RTC_WaitForSynchro(void) { return SUCCESS; }
-ErrorStatus RTC_SetTime(uint32_t RTC_Format, RTC_TimeTypeDef* RTC_TimeStruct) { return SUCCESS; }
-ErrorStatus RTC_SetDate(uint32_t RTC_Format, RTC_DateTypeDef* RTC_DateStruct) { return SUCCESS; }
-void RTC_GetTime(uint32_t RTC_Format, RTC_TimeTypeDef * RTC_TimeStruct)
-{
-  time_t tme;
-  time(&tme);
-  struct tm * timeinfo = localtime(&tme);
-  RTC_TimeStruct->RTC_Hours = timeinfo->tm_hour;
-  RTC_TimeStruct->RTC_Minutes = timeinfo->tm_min;
-  RTC_TimeStruct->RTC_Seconds = timeinfo->tm_sec;
-}
-
-void RTC_GetDate(uint32_t RTC_Format, RTC_DateTypeDef * RTC_DateStruct)
-{
-  time_t tme;
-  time(&tme);
-  struct tm * timeinfo = localtime(&tme);
-  RTC_DateStruct->RTC_Year = timeinfo->tm_year - 100; // STM32 year is two decimals only (so base is currently 2000), tm is based on number of years since 1900
-  RTC_DateStruct->RTC_Month = timeinfo->tm_mon + 1;
-  RTC_DateStruct->RTC_Date = timeinfo->tm_mday;
-}
-
 void unlockFlash()
 {
 }