diff --git a/cores/arduino/pins_arduino.h b/cores/arduino/pins_arduino.h
index 4e2708b052..e78b6dd510 100644
--- a/cores/arduino/pins_arduino.h
+++ b/cores/arduino/pins_arduino.h
@@ -20,14 +20,6 @@
 
 #include "PeripheralPins.h"
 
-/**
- * Libc porting layers
- */
-#if defined (  __GNUC__  ) /* GCC CS3 */
-#include <syscalls.h> /** RedHat Newlib minimal stub */
-#define WEAK __attribute__ ((weak))
-#endif
-
 // Arduino digital pin alias
 // GPIO port (A to K) * 16 pins: 176
 enum {
diff --git a/cores/arduino/stm32/stm32_def.c b/cores/arduino/stm32/stm32_def.c
new file mode 100644
index 0000000000..24fbce3c5a
--- /dev/null
+++ b/cores/arduino/stm32/stm32_def.c
@@ -0,0 +1,23 @@
+#include "stm32_def.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief  This function is executed in case of error occurrence.
+  * @param  None
+  * @retval None
+  */
+WEAK void _Error_Handler(const char * msg, int val)
+{
+  /* User can add his own implementation to report the HAL error return state */
+  printf("Error: %s (%i)\n", msg, val);
+  while(1)
+  {
+  }
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/cores/arduino/stm32/stm32_def.h b/cores/arduino/stm32/stm32_def.h
index b598d83a86..118845601a 100644
--- a/cores/arduino/stm32/stm32_def.h
+++ b/cores/arduino/stm32/stm32_def.h
@@ -74,11 +74,25 @@
 #define CAN1 CAN
 #endif
 
+/**
+ * Libc porting layers
+ */
+#if defined (  __GNUC__  ) /* GCC CS3 */
+#include <syscalls.h> /** RedHat Newlib minimal stub */
+#define WEAK __attribute__ ((weak))
+#endif
+
 #ifdef __cplusplus
 extern "C"{
 #endif // __cplusplus
+
 // weaked functions declaration
 void SystemClock_Config(void);
+
+void _Error_Handler(const char *, int);
+
+#define Error_Handler() _Error_Handler(__FILE__, __LINE__)
+
 #ifdef __cplusplus
 } // extern "C"
 #endif // __cplusplus