diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f7fc41..18496fb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,9 +28,10 @@ set(DSP_NAME "libCMSISDSP.a") # 指定DSP库名称
 link_directories(${CMAKE_SOURCE_DIR}/Middlewares/ST/ARM/DSP/Lib)
 
 # Generic compiler settings for optimization and basic link lib
-add_compile_options(-pipe ${MCU_FLAGS} -Wall -Werror -fmessage-length=0 # basic options
+add_compile_options(-pipe ${MCU_FLAGS} -Wall -fmessage-length=0 # basic options
                     -ffunction-sections -fdata-sections -fno-common # optimize options 
                     )
+# -Werror
 add_link_options(-pipe ${MCU_FLAGS} -T${LINKER_SCRIPT} -Wl,--no-warn-rwx-segments # close RWX warning
                  -lm -lc -lnosys # lib options
                  -Wl,--gc-sections -flto -specs=nano.specs -specs=nosys.specs # optimize options
@@ -42,7 +43,8 @@ add_link_options(-pipe ${MCU_FLAGS} -T${LINKER_SCRIPT} -Wl,--no-warn-rwx-segment
 add_definitions(
     -DUSE_HAL_DRIVER 
     -DSTM32F407xx 
-    -DARM_MATH_CM4 
+    -DARM_MATH_CM4
+        -D__FPU_PRESENT=1U
     ) # need -D<macro> to define macro
 
 # add inc