diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..dcd04be
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,122 @@
+.SUFFIXES: .o .a .c .s
+
+DEV_NUL=/dev/null
+
+RM=rm -f
+
+CROSS_COMPILE = arm-none-eabi-
+AR = $(CROSS_COMPILE)ar
+CC = $(CROSS_COMPILE)gcc
+AS = $(CROSS_COMPILE)as
+NM = $(CROSS_COMPILE)nm
+SIZE = $(CROSS_COMPILE)size
+
+vpath %.c ./src
+
+INCLUDES  = -Isdk/component/soc/realtek/8195a/fwlib/rtl8195a
+INCLUDES += -Isdk/component/soc/realtek/8195a/fwlib
+INCLUDES += -Isdk/component/soc/realtek/common/bsp
+INCLUDES += -Isdk/component/soc/realtek/8195a/cmsis
+INCLUDES += -Isdk/component/soc/realtek/8195a/cmsis/device/
+INCLUDES += -Isdk/component/os/freertos
+INCLUDES += -Isdk/component/os/freertos/freertos_v8.1.2/Source/include
+INCLUDES += -Isdk/component/os/freertos/freertos_v8.1.2/Source/portable/GCC/ARM_CM3
+INCLUDES += -Isdk/component/common/drivers/wlan/realtek/include
+INCLUDES += -Isdk/component/common/api/wifi
+INCLUDES += -Isdk/component/common/drivers/wlan/realtek/src/osdep
+INCLUDES += -Isdk/component/common/drivers/sdio/realtek/sdio_host/inc
+INCLUDES += -Isdk/project/realtek_ameba1_va0_example/inc
+
+OUTPUT_PATH=build
+
+CFLAGS = -c
+CFLAGS += -g
+CFLAGS += -w
+CFLAGS += -mcpu=cortex-m3
+CFLAGS += -mtune=cortex-m3
+CFLAGS += -mthumb
+CFLAGS += -O2
+CFLAGS += -ansi
+CFLAGS += -std=gnu99
+CFLAGS += -fno-short-enums
+CFLAGS += -fno-common
+CFLAGS += -fmessage-length=0
+CFLAGS += -Wall
+CFLAGS += -fno-exceptions
+CFLAGS += -ffunction-sections
+CFLAGS += -fdata-sections
+CFLAGS += -fomit-frame-pointer
+CFLAGS += -fno-short-enums
+CFLAGS += -nostdlib
+CFLAGS += -Werror
+CFLAGS += -Wundef
+CFLAGS += -Wpointer-arith
+CFLAGS += -Wstrict-prototypes
+CFLAGS += -Wno-write-strings
+CFLAGS += -fsingle-precision-constant
+CFLAGS += -Wdouble-promotion
+CFLAGS += -nostartfiles
+CFLAGS += -DCONFIG_PLATFORM_8195A $(INCLUDES)
+CFLAGS += $(CFLAGS_MOD)
+
+ASFLAGS = -mcpu=cortex-m3 -mthumb -Wall -a -g $(INCLUDES)
+
+C_SRC+=$(wildcard src/*.c)
+
+C_OBJ_TEMP=$(patsubst %.c, %.o, $(notdir $(C_SRC)))
+
+# during development, remove some files
+C_OBJ_FILTER=
+
+C_OBJ=$(filter-out $(C_OBJ_FILTER), $(C_OBJ_TEMP))
+
+ELF_CFLAGS += -O2
+ELF_CFLAGS += -Wl,--gc-sections
+ELF_CFLAGS += -mcpu=cortex-m3
+ELF_CFLAGS += -mthumb
+ELF_CFLAGS += --specs=nano.specs
+
+ELF_LDFLAGS += -Lsdk/lib -Lsdk/scripts -Tsdk/scripts/rlx8195A-symbol-v03-img2_arduino_arduino.ld 
+ELF_LDFLAGS += -Wl,-Map=$(OUTPUT_PATH)/target.map 
+ELF_LDFLAGS += -Wl,--cref
+ELF_LDFLAGS += -Wl,--warn-common
+ELF_LDFLAGS += -Wl,--gc-sections
+ELF_LDFLAGS += -Wl,--no-enum-size-warning
+ELF_LDFLAGS += -Wl,--no-wchar-size-warning
+ELF_LDFLAGS += -Wl,--entry=InfraStart
+ELF_LDFLAGS += -Wl,-nostdlib
+
+ELF_ARLIST += ./sdk/lib/lib_platform.a
+ELF_ARLIST += ./sdk/lib/lib_ameba.a
+#ELF_ARLIST += ./sdk/lib/lib_wlan.a
+#ELF_ARLIST += ./sdk/lib/lib_wlan_mp.a
+#ELF_ARLIST += ./sdk/lib/lib_wps.a
+#ELF_ARLIST += ./sdk/lib/lib_mdns.a
+#ELF_ARLIST += ./sdk/lib/lib_rtlstd.a
+#ELF_ARLIST += ./sdk/lib/lib_sdcard.a
+
+
+all: $(OUTPUT_PATH)/target.axf
+
+makebin/ram_all.bin: $(OUTPUT_PATH)/target.axf
+	cd ./makebin && /bin/bash ./makebin.sh
+
+$(OUTPUT_PATH)/target.axf: $(addprefix $(OUTPUT_PATH)/,$(C_OBJ))
+	echo build all objects
+	$(CC) $(ELF_CFLAGS) $(ELF_LDFLAGS) -o $(OUTPUT_PATH)/target.axf -Wl,--start-group $^ -Wl,--end-group $(ELF_ARLIST) -lstdc++ -lsupc++ -lm -lc -lgcc -lnosys
+	$(SIZE) $(OUTPUT_PATH)/target.axf 
+
+$(addprefix $(OUTPUT_PATH)/,$(C_OBJ)): $(OUTPUT_PATH)/%.o: %.c
+	@echo "$(CC) -c $(CFLAGS) $< -o $@"
+	@"$(CC)" -c $(CFLAGS) $< -o $@
+
+clean:
+	@echo clean
+	-@$(RM) $(OUTPUT_PATH)/target.* 1>$(DEV_NUL) 2>&1
+	-@$(RM) $(OUTPUT_PATH)/*.d 1>$(DEV_NUL) 2>&1
+	-@$(RM) $(OUTPUT_PATH)/*.o 1>$(DEV_NUL) 2>&1
+	-@$(RM) $(OUTPUT_PATH)/*.i 1>$(DEV_NUL) 2>&1
+	-@$(RM) $(OUTPUT_PATH)/*.s 1>$(DEV_NUL) 2>&1
+	-@$(RM) ./makebin/target* 1>$(DEV_NUL) 2>&1
+	-@$(RM) ./makebin/*.bin 1>$(DEV_NUL) 2>&1
+
diff --git a/build/.gitkeep b/build/.gitkeep
new file mode 100644
index 0000000..e69de29