diff --git a/gcc_cm7f.cmake b/gcc_cm7f.cmake
index bfe4a77..6720d96 100755
--- a/gcc_cm7f.cmake
+++ b/gcc_cm7f.cmake
@@ -17,7 +17,7 @@ SET(CMAKE_OBJDUMP "arm-none-eabi-objdump${TOOL_EXECUTABLE_SUFFIX}" CACHE STRING
 SET(CMAKE_SIZE "arm-none-eabi-size${TOOL_EXECUTABLE_SUFFIX}" CACHE STRING "size tool")
 
 #-- Common flags ---------------------------------------------------------------
-SET(COMPILER_COMMON_FLAGS "-mcpu=cortex-m7 -march=armv7e-m+fp -mthumb -mfloat-abi=hard -mfpu=fpv5-sp-d16 -Wall -Wextra -ffunction-sections -fdata-sections -mlong-calls")
+SET(COMPILER_COMMON_FLAGS "-mcpu=cortex-m7 -march=armv7e-m+fp -mthumb -mfloat-abi=hard -mfpu=fpv5-sp-d16 -Wall -Wextra -ffunction-sections -fdata-sections -mlong-calls -Wno-unused-function -Wno-unused-variable -Wno-unused-parameter")
 SET(CMAKE_C_FLAGS "${COMPILER_COMMON_FLAGS} -std=gnu99" CACHE STRING "c compiler flags")
 SET(CMAKE_CXX_FLAGS "${COMPILER_COMMON_FLAGS} -std=c++11" CACHE STRING "c++ compiler flags")
 SET(CMAKE_ASM_FLAGS "-mthumb -mcpu=cortex-m7" CACHE STRING "assembler compiler flags")