diff --git a/Makefile b/Makefile
index 2d76e5a8..19c46372 100644
--- a/Makefile
+++ b/Makefile
@@ -1,38 +1,67 @@
+#common config
 BOARD?=bl706_iot
 CHIP?=bl702
 APP_DIR?=examples
 APP?=helloworld
 CPU_ID?=none
-COMx?=
+
+#bootrom config,users do not need it
 BOOTROM?=n
 
-SUPPORT_FLOAT?=n
-SUPPORT_ROMAPI?=y
-
-INTERFACE?=uart
-BAUDRATE ?=2000000
-
+#format config
 FORMAT_DIR?=.
 
-export BOARD
-export CHIP
-export APP_DIR
-export APP
-export BOOTROM
-export CPU_ID
-export SUPPORT_FLOAT
-export SUPPORT_ROMAPI
-
 # The command to remove a file.
-RM = cmake -E rm -rf
+RM = cmake -E remove_directory
 
-build:
+#flash tool config
+INTERFACE?=uart
+COMx?=
+BAUDRATE ?=2000000
+ifeq ($(INTERFACE),uart)
+FLASH_DOWNLOAD_CONFIG:=--chipname=$(CHIP) --interface=uart --port=$(COMx) --baudrate=$(BAUDRATE)
+else
+FLASH_DOWNLOAD_CONFIG:=--chipname=$(CHIP) --interface=$(INTERFACE)
+endif
+
+#option config to use
+SUPPORT_FLOAT?=n
+SUPPORT_ROMAPI?=y
+SUPPORT_USB_HS?=n
+SUPPORT_HW_SEC_ENG_DISABLE?=n
+SUPPORT_BLECONTROLLER_LIB?=
+
+#cmake definition config
+ifneq ($(CPU_ID),none)
+cmake_definition+= -DCPU_ID=$(CPU_ID)
+endif
+
+cmake_definition+= -DCHIP=$(CHIP)
+cmake_definition+= -DBOARD=$(BOARD)
+cmake_definition+= -DAPP_DIR=$(APP_DIR)
+cmake_definition+= -DAPP=$(APP)
+cmake_definition+= -DBOOTROM=$(BOOTROM)
+cmake_definition+= -DSUPPORT_ROMAPI=$(SUPPORT_ROMAPI)
+cmake_definition+= -DCONFIG_PRINT_FLOAT=$(SUPPORT_FLOAT)
+cmake_definition+= -DCONFIG_USB_HS=$(SUPPORT_USB_HS)
+cmake_definition+= -DCONFIG_HW_SEC_ENG_DISABLE=$(SUPPORT_HW_SEC_ENG_DISABLE)
+cmake_definition+= -DCONFIG_BLECONTROLLER_LIB=$(SUPPORT_BLECONTROLLER_LIB)
+
+build:Makefile
 	cmake -E make_directory build
-	cmake -E copy project.build build
-	make -C ./build -f ./project.build
+	cd build && cmake -G "Unix Makefiles" $(cmake_definition) ..
+	cd build && make -j4
+
+help:
+	@echo "Welcome to MCU SDK camke build system,commands are as follows:"
+	@echo ""
+	@echo "make clean - Remove all cmake caches and output files"
+	@echo "make SUPPORT_FLOAT=y - Enable float print"
+	@echo "make SUPPORT_USB_HS=y - Enable usb high speed"
+	@echo "make SUPPORT_BLECONTROLLER_LIB=value - Select blecontroller lib,value can be m0s1、m0s1s、std or empty"
 
 download:
-	./tools/bflb_flash_tool/bflb_mcu_tool --chipname=$(CHIP) --interface=$(INTERFACE) --port=$(COMx) --baudrate=$(BAUDRATE)
+	./tools/bflb_flash_tool/bflb_mcu_tool $(FLASH_DOWNLOAD_CONFIG)
 
 format:
 	find $(FORMAT_DIR)/ -name "*.c" -o -name "*.h" -o -name "*.cc" -o -name "*.cpp"| xargs clang-format -style=file -i
@@ -41,5 +70,5 @@ clean:
 	$(RM) out
 	$(RM) build
 
-.PHONY:build clean download format
+.PHONY:build clean download format help
 
diff --git a/Preload.cmake b/Preload.cmake
deleted file mode 100644
index 6c16e991..00000000
--- a/Preload.cmake
+++ /dev/null
@@ -1 +0,0 @@
-set(CMAKE_GENERATOR "Unix Makefiles" CACHE INTERNAL "" FORCE)
\ No newline at end of file
diff --git a/project.build b/project.build
deleted file mode 100644
index 03fda0e3..00000000
--- a/project.build
+++ /dev/null
@@ -1,17 +0,0 @@
-ifneq ($(CPU_ID),none)
-cmake_definition+= -DCPU_ID=$(CPU_ID)
-endif
-
-cmake_definition+= -DCHIP=$(CHIP)
-cmake_definition+= -DBOARD=$(BOARD)
-cmake_definition+= -DSUPPORT_FLOAT=$(SUPPORT_FLOAT)
-cmake_definition+= -DSUPPORT_ROMAPI=$(SUPPORT_ROMAPI)
-cmake_definition+= -DAPP_DIR=$(APP_DIR)
-cmake_definition+= -DAPP=$(APP)
-cmake_definition+= -DBOOTROM=$(BOOTROM)
-
-__build:
-	cmake $(cmake_definition) ..
-	make -j4
-
-.PHONY:__build
\ No newline at end of file
diff --git a/tools/cmake/compiler_flags.cmake b/tools/cmake/compiler_flags.cmake
index 36361e11..d238a22a 100644
--- a/tools/cmake/compiler_flags.cmake
+++ b/tools/cmake/compiler_flags.cmake
@@ -9,7 +9,7 @@ list(APPEND GLOBAL_LD_FLAGS -Wall -Wchar-subscripts -std=c99)
 list(APPEND GLOBAL_LD_FLAGS --specs=nano.specs)
 
 
-if("${SUPPORT_FLOAT}" STREQUAL "y")
+if(CONFIG_PRINT_FLOAT_ENABLE)
 list(APPEND GLOBAL_LD_FLAGS -u _printf_float)
 endif()
 
diff --git a/tools/cmake/tools.cmake b/tools/cmake/tools.cmake
index a161ea36..89eba931 100644
--- a/tools/cmake/tools.cmake
+++ b/tools/cmake/tools.cmake
@@ -43,14 +43,7 @@ function(generate_library)
 
     # Add requirements
     if(ADD_REQUIREMENTS)
-        foreach(lib ${ADD_REQUIREMENTS})
-            if(TARGET ${lib})
-            add_dependencies(${library_name} ${lib})
-            target_link_libraries(${library_name} ${lib})
-            else()
-            message(FATAL_ERROR "${lib} is not a target")
-            endif()
-        endforeach()
+        target_link_libraries(${library_name} ${ADD_REQUIREMENTS})
     endif()
 
     # Add static lib
@@ -82,9 +75,9 @@ endfunction()
 
 function(generate_bin)
 
-    get_filename_component(current_relative_dir_name ${CMAKE_CURRENT_LIST_DIR} NAME)
-    string(REGEX REPLACE "(.*)/${current_relative_dir_name}$" "\\1" above_absolute_dir ${CMAKE_CURRENT_LIST_DIR})
-    get_filename_component(above_relative_dir_name ${above_absolute_dir} NAME)
+    get_filename_component(current_dir_name ${CMAKE_CURRENT_LIST_DIR} NAME)
+    string(REGEX REPLACE "(.*)/${current_dir_name}$" "\\1" above_absolute_dir ${CMAKE_CURRENT_LIST_DIR})
+    get_filename_component(above_dir_name ${above_absolute_dir} NAME)
 
     execute_process(
     COMMAND git submodule status
@@ -137,21 +130,23 @@ function(generate_bin)
         set(OUTPUT_DIR ${OUTPUT})
         set(target_name firmware)
     else()
-        if(${APP_DIR} MATCHES "../") #if demo is not in sdk path
-            string(REPLACE "../" "" dir ${APP_DIR})
-            set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${dir}/${current_relative_dir_name})
-        elseif(${APP_DIR} MATCHES "./")#if demo is in sdk peer path
-            set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${current_relative_dir_name})
+        string(REPLACE "." ":" dot2colon ${APP_DIR})
+        if(${dot2colon} MATCHES "::/") #if demo is not in sdk path
+            string(REPLACE "../" "" relative_dir ${APP_DIR})
+            set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${relative_dir}/${current_dir_name})
+        elseif(${dot2colon} MATCHES ":")#if demo is in sdk peer path
+            set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${current_dir_name})
         else()  #if demo is in sdk path not in peer path
-            if(${APP_DIR} MATCHES ${above_relative_dir_name}) #if demo has one-Layer Catalog
-                set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${APP_DIR}/${current_relative_dir_name})
+            if(${APP_DIR} MATCHES ${above_dir_name}) #if demo has one-Layer Catalog
+                set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${APP_DIR}/${current_dir_name})
             else() #if demo has Two-Layer Catalog
-                set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${APP_DIR}/${above_relative_dir_name}/${current_relative_dir_name})
+                set(OUTPUT_DIR ${CMAKE_SOURCE_DIR}/out/${APP_DIR}/${above_dir_name}/${current_dir_name})
             endif()
+
         endif()
 
         file(WRITE ${CMAKE_CURRENT_SOURCE_DIR}/submodule_commit_info.txt ${GIT_SUBMODULE_INFO})
-        set(target_name ${current_relative_dir_name})
+        set(target_name ${current_dir_name})
     endif()
 
 	file(MAKE_DIRECTORY ${OUTPUT_DIR})
@@ -240,7 +235,7 @@ if(DEFINED APP)
         get_filename_component(app_absolute_dir ${cmakelists_file} DIRECTORY)
         get_filename_component(app_absolute_dir_name ${app_absolute_dir} NAME)
         message(STATUS "[run app:${app_absolute_dir_name}], path:${app_absolute_dir}")
-        add_subdirectory(${app_absolute_dir} ${CMAKE_SOURCE_DIR}/build/samples/${app_absolute_dir_name})
+        add_subdirectory(${app_absolute_dir} ${PROJECT_BINARY_DIR}/samples/${app_absolute_dir_name})
         endforeach()
     else()
     message(FATAL_ERROR "can not find ${APP} in the first or second directory under the path:${component_path}")
@@ -252,8 +247,8 @@ endif()
 
 endfunction()
 
-function(check_add_library target_name directory)
+function(check_add_library target_name directory) # if library do not be built, add its subdirectory and build it
     if(NOT TARGET ${target_name})
-    add_subdirectory(${directory} ${CMAKE_SOURCE_DIR}/build/libraries/${target_name})
+    add_subdirectory(${directory} ${PROJECT_BINARY_DIR}/libraries/${target_name})
     endif()
 endfunction()
\ No newline at end of file