Add priliminar Arduino STM32 port

src/stm32_platform.cpp

@@ -0,0 +1,43 @@
+#include "stm32_platform.h"
+
+#ifdef ARDUINO_ARCH_STM32
+#include <EEPROM.h>
+#include "knx/bits.h"
+
+Stm32Platform::Stm32Platform() : ArduinoPlatform(&Serial2), eepromPtr(nullptr), eepromSize(0)
+{
+}
+
+Stm32Platform::Stm32Platform( HardwareSerial* s) : ArduinoPlatform(s), eepromPtr(nullptr), eepromSize(0)
+{
+}
+
+Stm32Platform::~Stm32Platform()
+{
+	delete [] eepromPtr;
+}
+
+void Stm32Platform::restart()
+{
+    println("restart");
+    NVIC_SystemReset();
+}
+
+uint8_t * Stm32Platform::getEepromBuffer(uint16_t size)
+{
+	delete [] eepromPtr;	
+	eepromPtr = new uint8_t[size];
+	for (uint16_t i = 0; i < size; ++i)
+		eepromPtr[i] = EEPROM[i];
+	return eepromPtr;
+}
+
+void Stm32Platform::commitToEeprom()
+{
+	if(eepromPtr == nullptr)
+		return;
+	for (uint16_t i = 0; i < eepromSize; ++i)
+		EEPROM.update(i, eepromPtr[i]);
+}
+
+#endif