Changes for FreeRTOS library.

Author: straccio

cores/arduino/Arduino.h

@@ -32,12 +32,13 @@
 #include "wiring.h"
 
 /* sketch */
-extern void setup( void ) ;
-extern void loop( void ) ;
 
 #ifdef __cplusplus
 extern "C"{
 #endif // __cplusplus
+extern void setup( void ) ;
+extern void loop( void ) ;
+
 void yield(void);
 #ifdef __cplusplus
 } // extern "C"

cores/arduino/stm32/clock.c

@@ -125,6 +125,11 @@ uint32_t GetCurrentMilli(void)
   return HAL_GetTick();
 }
 
+void noOsSystickHandler(){
+
+}
+
+void osSystickHandler() __attribute__((weak, alias("noOsSystickHandler")));
 /**
   * @brief  Function called when t he tick interruption falls
   * @param  None
@@ -134,6 +139,7 @@ void SysTick_Handler(void)
 {
   HAL_IncTick();
   HAL_SYSTICK_IRQHandler();
+  osSystickHandler();
 }
 
 /**