diff --git a/src/knx/rf_physical_layer.h b/src/knx/rf_physical_layer.h
index 19392e8..01a3c44 100644
--- a/src/knx/rf_physical_layer.h
+++ b/src/knx/rf_physical_layer.h
@@ -59,7 +59,7 @@ extern void delayMicroseconds (unsigned int howLong);
 #define PKTLEN   0x06         // Packet length
 #define PKTCTRL1 0x07         // Packet automation control
 #define PKTCTRL0 0x08         // Packet automation control
-#define DADDR    0x09         // Device address
+#define DEVADDR  0x09         // Device address
 #define CHANNR   0x0A         // Channel number
 #define FSCTRL1  0x0B         // Frequency synthesizer control
 #define FSCTRL0  0x0C         // Frequency synthesizer control
diff --git a/src/knx_facade.cpp b/src/knx_facade.cpp
index e79ccec..ba5e766 100644
--- a/src/knx_facade.cpp
+++ b/src/knx_facade.cpp
@@ -24,6 +24,8 @@
     KnxFacade<Esp32Platform, Bau57B0> knx;
 #elif ARDUINO_ARCH_STM32
     KnxFacade<Stm32Platform, Bau57B0> knx;
+    // no predefined global instance
+    #define ICACHE_RAM_ATTR
 #elif __linux__
     // no predefined global instance
     #define ICACHE_RAM_ATTR
diff --git a/src/stm32_platform.cpp b/src/stm32_platform.cpp
index b9db3c7..4d2d92c 100644
--- a/src/stm32_platform.cpp
+++ b/src/stm32_platform.cpp
@@ -19,7 +19,6 @@ Stm32Platform::~Stm32Platform()
 
 void Stm32Platform::restart()
 {
-    println("restart");
     NVIC_SystemReset();
 }
 
diff --git a/src/stm32_platform.h b/src/stm32_platform.h
index 17062f3..d8c6faa 100644
--- a/src/stm32_platform.h
+++ b/src/stm32_platform.h
@@ -1,11 +1,8 @@
 #ifdef ARDUINO_ARCH_STM32
 #include "arduino_platform.h"
 
-
 class Stm32Platform : public ArduinoPlatform
 {
-    using ArduinoPlatform::_mulitcastAddr;
-    using ArduinoPlatform::_mulitcastPort;
 public:
     Stm32Platform();
     Stm32Platform( HardwareSerial* s);