diff --git a/libpsk/include/libpsk/port/isix/stm32adac_device.hpp b/libpsk/include/libpsk/port/isix/stm32adac_device.hpp
new file mode 100644
index 0000000..dc56619
--- /dev/null
+++ b/libpsk/include/libpsk/port/isix/stm32adac_device.hpp
@@ -0,0 +1,46 @@
+/*
+ * =====================================================================================
+ *
+ *       Filename:  stm32adac_device.hpp
+ *
+ *    Description:  STM32 AC/CA implementation
+ *
+ *        Version:  1.0
+ *        Created:  06.05.2014 21:18:24
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  Lucjan Bryndza (LB), lucck(at)boff(dot)pl
+ *   Organization:  BoFF
+ *
+ * =====================================================================================
+ */
+
+#pragma once
+/* ------------------------------------------------------------------ */ 
+#include "libpsk/codec/trx_device_base.hpp"
+/* ------------------------------------------------------------------ */
+namespace ham {
+namespace psk {
+/* ------------------------------------------------------------------ */ 
+class stm32adac_device : public trx_device_base {
+public:
+	//! Constructor
+	stm32adac_device( handler_t evt_callback ) 
+		: trx_device_base( evt_callback ) {
+	}
+	//! Destructor
+	virtual ~stm32adac_device() {
+	}
+protected:
+	//Lock the device
+	virtual void lock( int id );
+	virtual void unlock( int id );
+	virtual bool try_lock( int id );
+	virtual int join();
+	// Initialize sound hardware in selected mode
+	virtual int setup_sound_hardware( trx_device_base::mode m );
+};
+/* ------------------------------------------------------------------ */
+}
+}
diff --git a/libpsk/src/port/isix/st32adac_device.cpp b/libpsk/src/port/isix/st32adac_device.cpp
new file mode 100644
index 0000000..910a7e3
--- /dev/null
+++ b/libpsk/src/port/isix/st32adac_device.cpp
@@ -0,0 +1,52 @@
+/*
+ * =====================================================================================
+ *
+ *       Filename:  st32adac_device.cpp
+ *
+ *    Description:  STM32ADAC device driver implementation
+ *
+ *        Version:  1.0
+ *        Created:  06.05.2014 21:49:23
+ *       Revision:  none
+ *       Compiler:  gcc
+ *
+ *         Author:  Lucjan Bryndza (LB), lucck(at)boff(dot)pl
+ *   Organization:  BoFF
+ *
+ * =====================================================================================
+ */
+#include "libpsk/port/isix/stm32adac_device.hpp"
+
+/* ------------------------------------------------------------------ */
+namespace ham {
+namespace psk {
+/* ------------------------------------------------------------------ */ 
+//! Lock or unlock selected primitive
+void stm32adac_device::lock( int id )
+{
+}
+/* ------------------------------------------------------------------ */
+//! Lock or unlock selected primitive
+void stm32adac_device::unlock( int id )
+{
+}
+/* ------------------------------------------------------------------ */ 
+//Try lock selected primitive
+bool stm32adac_device::try_lock( int id )
+{
+
+}
+/* ------------------------------------------------------------------ */ 
+//! Initialize and setup sound hardware
+int stm32adac_device::setup_sound_hardware( trx_device_base::mode m )
+{
+
+}
+/* ------------------------------------------------------------------ */
+//! Join and wait for finish trx
+int stm32adac_device::join() 
+{
+
+}
+/* ------------------------------------------------------------------ */
+}}