diff --git a/.hgignore b/.hgignore
index 37fc526..0e46ad2 100644
--- a/.hgignore
+++ b/.hgignore
@@ -5,3 +5,4 @@ syntax: glob
 *.orig
 *.elf
 .*
+*.a
diff --git a/libpsk.mk b/libpsk.mk
new file mode 100644
index 0000000..df1270e
--- /dev/null
+++ b/libpsk.mk
@@ -0,0 +1,18 @@
+#PSK lib isix header
+LIBPSK_CPPSRC += $(wildcard $(LIBPSK_DIR)/libpsk/src/codec/*.cpp)
+LIBPSK_CPPSRC += $(wildcard $(LIBPSK_DIR)/libpsk/src/ham/*.cpp)
+LIBPSK_CPPSRC += $(wildcard $(LIBPSK_DIR)/libpsk/src/psk/*.cpp)
+LIBPSK_INC += -I$(LIBPSK_DIR)/libpsk/include
+
+
+LIBPSK_LIB += $(LIBPSK_DIR)/libpsk.a
+LIBPSK_OBJS += $(LIBPSK_CPPSRC:%.cpp=%.o)
+DEPFILES += $(LIBPSK_CPPSRC:%.cpp=%.dep)
+
+.ONESHELL:
+$(LIBPSK_LIB): $(LIBPSK_OBJS)
+	    $(AR) $(ARFLAGS) $@ $^
+
+LIBS += $(LIBPSK_LIB)
+LIBS_OBJS += $(LIBPSK_OBJS)
+COMMON_FLAGS += $(LIBPSK_INC) -D_GLIBCXX_USE_C99_MATH_TR1
diff --git a/libpsk/include/dsp/fft.h b/libpsk/include/dsp/fft.h
index b71df63..f07bd1d 100644
--- a/libpsk/include/dsp/fft.h
+++ b/libpsk/include/dsp/fft.h
@@ -79,11 +79,12 @@ namespace _internal
 		}
 		#else
 		//TODO: Cortex M3 biteverse use RBIT AND ASR in CM3
-		inline unsigned bitrev( unsigned v, int m )
+		inline unsigned bitrev( unsigned value, int m )
 		{
-			
+			unsigned result;
+			asm ("rbit %0, %1" : "=r" (result) : "r" (value) );
+			return result >> ( 32 - m );
 		}
-		#error Bit reverse not implemented yet
 		#endif
 		//Constant class definition
 		template<typename T, typename K> class scaledV
diff --git a/libpsk/include/psk/spectrum_calculator.hpp b/libpsk/include/psk/spectrum_calculator.hpp
index 764b1af..8264423 100644
--- a/libpsk/include/psk/spectrum_calculator.hpp
+++ b/libpsk/include/psk/spectrum_calculator.hpp
@@ -8,6 +8,7 @@
 #ifndef LIBPSK_SPECTRUM_CALCULATOR_HPP_
 #define LIBPSK_SPECTRUM_CALCULATOR_HPP_
 /*----------------------------------------------------------*/
+#include <cmath>
 #include <cstddef>
 #include <complex>
 #include <cstring>
@@ -15,7 +16,6 @@
 /*----------------------------------------------------------*/
 namespace ham {
 namespace psk {
-
 /*----------------------------------------------------------*/
 //Class spectrum calculator calculate the current spectrum
 class spectrum_calculator {
diff --git a/libpsk/src/ham/ham_digi.cpp b/libpsk/src/ham/ham_digi.cpp
index 408fec0..63533d6 100644
--- a/libpsk/src/ham/ham_digi.cpp
+++ b/libpsk/src/ham/ham_digi.cpp
@@ -9,7 +9,7 @@
 #ifndef COMPILED_UNDER_ISIX
 #include "port/pulse/pulse_device.hpp"
 #else
-#error not implemented yet
+#warning not implemented yet
 #endif
 #include "psk/decoder.hpp"
 #include "psk/modulator.hpp"
@@ -28,6 +28,10 @@ namespace
 		return new pulse_device( std::bind(h, sys_idx, std::placeholders::_1) );
 	}
 #else
+	inline trx_device_base* create_default_device( ham_digi::handler_t h ) {
+		return nullptr;
+		return nullptr;
+	}
 #endif
 }
 /* ------------------------------------------------------------------------- */
diff --git a/unix.mk b/unix.mk
index d58d493..0bfa9d9 100644
--- a/unix.mk
+++ b/unix.mk
@@ -9,8 +9,6 @@ CP      = $(CROSS_COMPILE)objcopy
 OBJDUMP = $(CROSS_COMPILE)objdump 
 SIZE 	= $(CROSS_COMPILE)size
 
-#Current platform
-PLATFORM_DEVICE ?= BFC1
 
 #Pozostale ustawienia kompilatora
 ASFLAGS += 
@@ -42,11 +40,6 @@ CXXFLAGS += -ffunction-sections -fdata-sections
 LDFLAGS+= -Wl,--gc-sections
 endif
 
-ifeq ($(PLATFORM_DEVICE), BF210)
-CFLAGS += -DPLCXML_BF210_PLATFORM
-CXXFLAGS += -DPLCXML_BF210_PLATFORM	
-endif
-
 
 all:	build