diff --git a/demos/STM32/RT-STM32L053R8-NUCLEO/debug/RT-STM32L152RE-NUCLEO (OpenOCD, Flash and Run).launch b/demos/STM32/RT-STM32L053R8-NUCLEO/debug/RT-STM32L053R8-NUCLEO (OpenOCD, Flash and Run).launch
similarity index 98%
rename from demos/STM32/RT-STM32L053R8-NUCLEO/debug/RT-STM32L152RE-NUCLEO (OpenOCD, Flash and Run).launch
rename to demos/STM32/RT-STM32L053R8-NUCLEO/debug/RT-STM32L053R8-NUCLEO (OpenOCD, Flash and Run).launch
index c058fad60..9a792695a 100644
--- a/demos/STM32/RT-STM32L053R8-NUCLEO/debug/RT-STM32L152RE-NUCLEO (OpenOCD, Flash and Run).launch	
+++ b/demos/STM32/RT-STM32L053R8-NUCLEO/debug/RT-STM32L053R8-NUCLEO (OpenOCD, Flash and Run).launch	
@@ -39,7 +39,7 @@
 <stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="./build/ch.elf"/>
 <stringAttribute key="org.eclipse.cdt.launch.PROJECT_ATTR" value="RT-STM32L053R8-NUCLEO"/>
 <booleanAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_AUTO_ATTR" value="true"/>
-<stringAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_ID_ATTR" value="0.1984968159"/>
+<stringAttribute key="org.eclipse.cdt.launch.PROJECT_BUILD_CONFIG_ID_ATTR" value="0.603687198"/>
 <listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
 <listEntry value="/RT-STM32L053R8-NUCLEO"/>
 </listAttribute>
diff --git a/demos/STM32/RT-STM32L053R8-NUCLEO/mcuconf.h b/demos/STM32/RT-STM32L053R8-NUCLEO/mcuconf.h
index ad56a50fd..1dede17e8 100644
--- a/demos/STM32/RT-STM32L053R8-NUCLEO/mcuconf.h
+++ b/demos/STM32/RT-STM32L053R8-NUCLEO/mcuconf.h
@@ -41,9 +41,9 @@
 #define STM32_PVD_ENABLE                    FALSE
 #define STM32_PLS                           STM32_PLS_LEV0
 #define STM32_HSI16_ENABLED                 TRUE
-#define STM32_LSI_ENABLED                   TRUE
+#define STM32_LSI_ENABLED                   FALSE
 #define STM32_HSE_ENABLED                   FALSE
-#define STM32_LSE_ENABLED                   FALSE
+#define STM32_LSE_ENABLED                   TRUE
 #define STM32_ADC_CLOCK_ENABLED             TRUE
 #define STM32_USB_CLOCK_ENABLED             TRUE
 #define STM32_MSIRANGE                      STM32_MSIRANGE_2M
@@ -56,7 +56,7 @@
 #define STM32_PPRE2                         STM32_PPRE2_DIV1
 #define STM32_MCOSEL                        STM32_MCOSEL_NOCLOCK
 #define STM32_MCOPRE                        STM32_MCOPRE_DIV1
-#define STM32_RTCSEL                        STM32_RTCSEL_LSI
+#define STM32_RTCSEL                        STM32_RTCSEL_LSE
 #define STM32_RTCPRE                        STM32_RTCPRE_DIV2
 #define STM32_USART1SEL                     STM32_USART1SEL_APB
 #define STM32_USART2SEL                     STM32_USART2SEL_APB
diff --git a/os/hal/boards/ST_NUCLEO_L053R8/board.h b/os/hal/boards/ST_NUCLEO_L053R8/board.h
index 863160d17..9a9035ba4 100644
--- a/os/hal/boards/ST_NUCLEO_L053R8/board.h
+++ b/os/hal/boards/ST_NUCLEO_L053R8/board.h
@@ -29,11 +29,10 @@
 
 /*
  * Board oscillators-related settings.
- * NOTE: LSE not fitted.
  * NOTE: HSE not fitted.
  */
 #if !defined(STM32_LSECLK)
-#define STM32_LSECLK                0U
+#define STM32_LSECLK                32768U
 #endif
 
 #define STM32_LSEDRV                (3U << 11U)
@@ -137,23 +136,6 @@
 #define GPIOH_PIN14                 14U
 #define GPIOH_PIN15                 15U
 
-/*
- * IO lines assignments.
- */
-#define LINE_USART_TX               PAL_LINE(GPIOA, 2U)
-#define LINE_USART_RX               PAL_LINE(GPIOA, 3U)
-#define LINE_LED_GREEN              PAL_LINE(GPIOA, 5U)
-#define LINE_SWDIO                  PAL_LINE(GPIOA, 13U)
-#define LINE_SWCLK                  PAL_LINE(GPIOA, 14U)
-
-#define LINE_SWO                    PAL_LINE(GPIOB, 3U)
-
-#define LINE_BUTTON                 PAL_LINE(GPIOC, 13U)
-
-
-#define LINE_OSC_IN                 PAL_LINE(GPIOH, 0U)
-#define LINE_OSC_OUT                PAL_LINE(GPIOH, 1U)
-
 /*
  * I/O ports initial setup, this configuration is established soon after reset
  * in the initialization code.
@@ -167,10 +149,10 @@
 #define PIN_ODR_HIGH(n)             (1U << (n))
 #define PIN_OTYPE_PUSHPULL(n)       (0U << (n))
 #define PIN_OTYPE_OPENDRAIN(n)      (1U << (n))
-#define PIN_OSPEED_VERYLOW(n)       (0U << ((n) * 2U))
+#define PIN_OSPEED_VERYLOW(n)           (0U << ((n) * 2U))
 #define PIN_OSPEED_LOW(n)           (1U << ((n) * 2U))
-#define PIN_OSPEED_MEDIUM(n)        (2U << ((n) * 2U))
-#define PIN_OSPEED_HIGH(n)          (3U << ((n) * 2U))
+#define PIN_OSPEED_MEDIUM(n)          (2U << ((n) * 2U))
+#define PIN_OSPEED_HIGH(n)           (3U << ((n) * 2U))
 #define PIN_PUPDR_FLOATING(n)       (0U << ((n) * 2U))
 #define PIN_PUPDR_PULLUP(n)         (1U << ((n) * 2U))
 #define PIN_PUPDR_PULLDOWN(n)       (2U << ((n) * 2U))
diff --git a/os/hal/boards/ST_NUCLEO_L053R8/cfg/board.chcfg b/os/hal/boards/ST_NUCLEO_L053R8/cfg/board.chcfg
index b257ff9bb..e5ad052a5 100644
--- a/os/hal/boards/ST_NUCLEO_L053R8/cfg/board.chcfg
+++ b/os/hal/boards/ST_NUCLEO_L053R8/cfg/board.chcfg
@@ -12,7 +12,7 @@
   <board_id>ST_NUCLEO_L053R8</board_id>
   <board_functions></board_functions>
   <subtype>STM32L053xx</subtype>
-  <clocks HSEFrequency="0" HSEBypass="true" LSEFrequency="0"
+  <clocks HSEFrequency="0" HSEBypass="true" LSEFrequency="32768"
   	LSEBypass="false" LSEDrive="3 High Drive (default)" />
   <ports>
     <GPIOA>
diff --git a/os/hal/ports/STM32/STM32L0xx/hal_lld.h b/os/hal/ports/STM32/STM32L0xx/hal_lld.h
index 766677575..31241386b 100644
--- a/os/hal/ports/STM32/STM32L0xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32L0xx/hal_lld.h
@@ -497,6 +497,21 @@
 #error "Using a wrong mcuconf.h file, STM32L0xx_MCUCONF not defined"
 #endif
 
+/*
+ * Board files sanity checks.
+ */
+#if !defined(STM32_LSECLK)
+#error "STM32_LSECLK not defined in board.h"
+#endif
+
+#if !defined(STM32_LSEDRV)
+#error "STM32_LSEDRV not defined in board.h"
+#endif
+
+#if !defined(STM32_HSECLK)
+#error "STM32_HSECLK not defined in board.h"
+#endif
+
 /* Voltage related limits.*/
 #if (STM32_VOS == STM32_VOS_1P8) || defined(__DOXYGEN__)
 /**