Added periodic timers

include/sta/rtos/timer.hpp

@@ -10,6 +10,7 @@
 #include <sta/timer.hpp>
 
 #include <functional>
+#include "cmsis_os2.h"
 
 
 namespace sta
@@ -30,7 +31,7 @@ namespace sta
 		 * @param callback 	The callback function to call upon timer timeout.
 		 * @param arg 		The argument to pass to the callback function.
 		 */
-		RtosTimer(std::function<void(void*)>, void *arg);
+		RtosTimer(std::function<void(void*)>, void *arg, osTimerType_t type = osTimerOnce);
 
 		/**
 		 * @brief Initializes the timer with a callback that has no effect.