diff --git a/os/hal/ports/STM32/STM32L5xx/hal_lld.h b/os/hal/ports/STM32/STM32L5xx/hal_lld.h
index 550c1b137..d52576262 100644
--- a/os/hal/ports/STM32/STM32L5xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32L5xx/hal_lld.h
@@ -592,21 +592,6 @@
 
 #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_RANGE0) || defined(__DOXYGEN__)
 /**
@@ -816,7 +801,8 @@
 /*
  * Platform HSI16-related checks.
  */
-#if !STM32_HSI16_ENABLED
+#if STM32_HSI16_ENABLED
+#else /* !STM32_HSI16_ENABLED */
 
   #if STM32_SW == STM32_SW_HSI16
     #error "HSI16 not enabled, required by STM32_SW"
@@ -940,7 +926,8 @@
 /*
  * Platform HSE-related checks.
  */
-#if !STM32_HSE_ENABLED
+#if STM32_HSE_ENABLED
+#else /* !STM32_HSE_ENABLED */
 
   #if STM32_SW == STM32_SW_HSE
     #error "HSE not enabled, required by STM32_SW"
@@ -999,7 +986,8 @@
 /*
  * Platform LSI-related checks.
  */
-#if !STM32_LSI_ENABLED
+#if STM32_LSI_ENABLED
+#else /* !STM32_LSI_ENABLED */
 
   #if HAL_USE_RTC && (STM32_RTCSEL == STM32_RTCSEL_LSI)
     #error "LSI not enabled, required by STM32_RTCSEL"
@@ -1018,7 +1006,9 @@
 /*
  * Platform LSE-related checks.
  */
-#if !STM32_LSE_ENABLED
+#if STM32_LSE_ENABLED
+#else /* !STM32_LSE_ENABLED */
+
   #if STM32_RTCSEL == STM32_RTCSEL_LSE
     #error "LSE not enabled, required by STM32_RTCSEL"
   #endif
@@ -1034,6 +1024,7 @@
   #if STM32_MSIPLL_ENABLED == TRUE
     #error "LSE not enabled, required by STM32_MSIPLL_ENABLED"
   #endif
+
 #endif /* !STM32_LSE_ENABLED */
 
 /**