diff --git a/src/rtc.c b/src/rtc.c
new file mode 100644
--- /dev/null
+++ b/src/rtc.c
@@ -0,0 +1,76 @@
+//
+// RTC: configure real-time clock
+//
+
+#include "stm32f0xx_hal.h"
+#include "rtc.h"
+
+
+RTC_HandleTypeDef hrtc;
+
+static void Error_Handler(void)
+{
+	volatile crap = 1;
+}
+
+// Initialize RTC
+void rtc_init(void)
+{
+        __HAL_RCC_RTC_ENABLE();
+
+    
+  RTC_TimeTypeDef sTime;
+  RTC_DateTypeDef sDate;
+  RTC_AlarmTypeDef sAlarm;
+
+  hrtc.Instance = RTC;
+  hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
+  hrtc.Init.AsynchPrediv = 127;
+  hrtc.Init.SynchPrediv = 255;
+  hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
+  hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
+  hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
+  if (HAL_RTC_Init(&hrtc) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  sTime.Hours = 0x0;
+  sTime.Minutes = 0x0;
+  sTime.Seconds = 0x0;
+  sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
+  sTime.StoreOperation = RTC_STOREOPERATION_RESET;
+  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BCD) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  sDate.WeekDay = RTC_WEEKDAY_MONDAY;
+  sDate.Month = RTC_MONTH_JANUARY;
+  sDate.Date = 0x1;
+  sDate.Year = 0x0;
+
+  if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BCD) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+    /**Enable the Alarm A 
+    */
+  sAlarm.AlarmTime.Hours = 0x0;
+  sAlarm.AlarmTime.Minutes = 0x0;
+  sAlarm.AlarmTime.Seconds = 0x0;
+  sAlarm.AlarmTime.SubSeconds = 0x0;
+  sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
+  sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;
+  sAlarm.AlarmMask = RTC_ALARMMASK_NONE;
+  sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_ALL;
+  sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
+  sAlarm.AlarmDateWeekDay = 0x1;
+  sAlarm.Alarm = RTC_ALARM_A;
+  if (HAL_RTC_SetAlarm(&hrtc, &sAlarm, RTC_FORMAT_BCD) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+}