diff --git a/build_tools/cmake/arm-none-eabi-gcc.cmake b/build_tools/cmake/arm-none-eabi-gcc.cmake
index 3614c6d..002fade 100644
--- a/build_tools/cmake/arm-none-eabi-gcc.cmake
+++ b/build_tools/cmake/arm-none-eabi-gcc.cmake
@@ -88,6 +88,8 @@ elseif(ARM_CPU STREQUAL "cortex-m7")
   endif()
 elseif(ARM_CPU STREQUAL "cortex-m55")
   set(ARM_COMPILER_FLAGS "${ARM_COMPILER_FLAGS} -mthumb -mcpu=cortex-m55 -mfloat-abi=softfp")
+elseif(ARM_CPU STREQUAL "cortex-m33")
+  set(ARM_COMPILER_FLAGS "${ARM_COMPILER_FLAGS} -mthumb -march=armv8-m.main -mfloat-abi=hard -mfpu=fpv5-sp-d16")
 endif()
 
 set(ARM_COMPILER_FLAGS "${ARM_COMPILER_FLAGS} -DIREE_TIME_NOW_FN=\"\{ return 0; \}\" -DIREE_WAIT_UNTIL_FN=wait_until")
@@ -96,6 +98,9 @@ set(ARM_COMPILER_FLAGS "${ARM_COMPILER_FLAGS} -Wl,--gc-sections -ffunction-secti
 if(ARM_CPU STREQUAL "cortex-m55")
   set(IREE_LLVM_TARGET_TRIPLE "armv8.1m.main-pc-linux-elf")
   set(IREE_LLVM_TARGET_FLOAT_ABI "default")
+elseif(ARM_CPU STREQUAL "cortex-m33")
+  set(IREE_LLVM_TARGET_TRIPLE "armv8m.main-pc-linux-elf")
+  set(IREE_LLVM_TARGET_FLOAT_ABI "hard")
 else()
   set(IREE_LLVM_TARGET_TRIPLE "armv7em-pc-linux-elf")
   set(IREE_LLVM_TARGET_FLOAT_ABI "hard")