diff --git a/CMakeLists.txt b/CMakeLists.txt
index 34a3ea7..e5c8704 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,5 @@
 cmake_minimum_required(VERSION 3.13)
+enable_language(ASM)
 project(SIMMProgrammer)
 
 # Create a list of all source files common to all architectures
@@ -26,6 +27,8 @@ set(SOURCES
 # Get hardware-specific source files
 if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "avr")
 	include(hal/at90usb646/at90usb646_sources.cmake)
+elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm")
+	include(hal/m258ke/m258ke_sources.cmake)
 else()
 	message(FATAL_ERROR "unrecognized architecture for build")
 endif()
@@ -47,4 +50,6 @@ target_link_options(SIMMProgrammer.elf PRIVATE
 # Get hardware-specific options
 if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "avr")
 	include(hal/at90usb646/at90usb646_options.cmake)
+elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "arm")
+	include(hal/m258ke/m258ke_options.cmake)
 endif()