diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..34a3ea7
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,50 @@
+cmake_minimum_required(VERSION 3.13)
+project(SIMMProgrammer)
+
+# Create a list of all source files common to all architectures
+set(SOURCES
+	drivers/mcp23s17.c
+	drivers/mcp23s17.h
+	drivers/parallel_flash.c
+	drivers/parallel_flash.h
+	hal/board.h
+	hal/gpio.h
+	hal/parallel_bus.h
+	hal/spi.h
+	hal/usbcdc.h
+	tests/simm_electrical_test.c
+	tests/simm_electrical_test.h
+	chip_id.h
+	main.c
+	led.h
+	programmer_protocol.h
+	simm_programmer.c
+	simm_programmer.h
+	util.h
+)
+
+# Get hardware-specific source files
+if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "avr")
+	include(hal/at90usb646/at90usb646_sources.cmake)
+else()
+	message(FATAL_ERROR "unrecognized architecture for build")
+endif()
+
+# The actual executable, in ELF format
+add_executable(SIMMProgrammer.elf ${SOURCES} ${HWSOURCES})
+
+# Common compiler options
+target_compile_options(SIMMProgrammer.elf PRIVATE
+	-Wall -Os -ffunction-sections -fdata-sections
+)
+set_property(TARGET SIMMProgrammer.elf PROPERTY C_STANDARD 99)
+
+# Common linker options
+target_link_options(SIMMProgrammer.elf PRIVATE
+	-Wl,-Map,SIMMProgrammer.map -Wl,--gc-sections
+)
+
+# Get hardware-specific options
+if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "avr")
+	include(hal/at90usb646/at90usb646_options.cmake)
+endif()
diff --git a/hal/at90usb646/at90usb646_options.cmake b/hal/at90usb646/at90usb646_options.cmake
new file mode 100644
index 0000000..dfc3bf1
--- /dev/null
+++ b/hal/at90usb646/at90usb646_options.cmake
@@ -0,0 +1,29 @@
+# AVR-specific include paths
+target_include_directories(SIMMProgrammer.elf PRIVATE
+	hal/at90usb646
+)
+
+# AVR-specific compiler definitions
+target_compile_definitions(SIMMProgrammer.elf PRIVATE
+	F_CPU=16000000UL
+	F_USB=16000000UL
+	USE_LUFA_CONFIG_HEADER
+)
+
+# AVR-specific compiler options
+target_compile_options(SIMMProgrammer.elf PRIVATE
+	-fpack-struct -fshort-enums -funsigned-char -funsigned-bitfields -mmcu=at90usb646
+)
+
+# AVR-specific linker options
+target_link_options(SIMMProgrammer.elf PRIVATE
+	-mmcu=at90usb646
+)
+
+# AVR-specific command/target to generate .bin file from the ELF file. This program
+# is flashed using a bootloader, so there's no need to generate a HEX file.
+add_custom_command(OUTPUT SIMMProgrammer.bin
+	COMMAND ${CMAKE_OBJCOPY} -R .eeprom -O binary SIMMProgrammer.elf SIMMProgrammer.bin
+	DEPENDS SIMMProgrammer.elf
+)
+add_custom_target(SIMMProgrammer_bin ALL DEPENDS SIMMProgrammer.bin)
diff --git a/hal/at90usb646/at90usb646_sources.cmake b/hal/at90usb646/at90usb646_sources.cmake
new file mode 100644
index 0000000..3577227
--- /dev/null
+++ b/hal/at90usb646/at90usb646_sources.cmake
@@ -0,0 +1,70 @@
+set(HWSOURCES
+	hal/at90usb646/LUFA/Common/Architectures.h
+	hal/at90usb646/LUFA/Common/ArchitectureSpecific.h
+	hal/at90usb646/LUFA/Common/Attributes.h
+	hal/at90usb646/LUFA/Common/BoardTypes.h
+	hal/at90usb646/LUFA/Common/Common.h
+	hal/at90usb646/LUFA/Common/CompilerSpecific.h
+	hal/at90usb646/LUFA/Common/Endianness.h
+	hal/at90usb646/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
+	hal/at90usb646/LUFA/Drivers/USB/Class/CDCClass.h
+	hal/at90usb646/LUFA/Drivers/USB/Class/Common/CDCClassCommon.h
+	hal/at90usb646/LUFA/Drivers/USB/Class/Device/CDCClassDevice.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Device_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Device_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Endpoint_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Endpoint_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/EndpointStream_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/EndpointStream_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Host_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Host_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/OTG_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Pipe_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/Pipe_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/USBController_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/USBController_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/USBInterrupt_AVR8.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/AVR8/USBInterrupt_AVR8.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/ConfigDescriptor.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/ConfigDescriptor.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/DeviceStandardReq.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/DeviceStandardReq.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/Device.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/Endpoint.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/EndpointStream.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/Events.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/Events.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/Host.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/HostStandardReq.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/OTG.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/Pipe.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/PipeStream.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/StdDescriptors.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/StdRequestType.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/USBController.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/USBInterrupt.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/USBMode.h
+	hal/at90usb646/LUFA/Drivers/USB/Core/USBTask.c
+	hal/at90usb646/LUFA/Drivers/USB/Core/USBTask.h
+	hal/at90usb646/LUFA/Drivers/USB/USB.h
+	hal/at90usb646/LUFA/Version.h
+	hal/at90usb646/LUFAConfig.h
+
+	hal/at90usb646/board.c
+	hal/at90usb646/board_hw.h
+	hal/at90usb646/cdc_device_definition.c
+	hal/at90usb646/cdc_device_definition.h
+	hal/at90usb646/Descriptors.c
+	hal/at90usb646/Descriptors.h
+	hal/at90usb646/gpio.c
+	hal/at90usb646/gpio_hw.h
+	hal/at90usb646/hardware.h
+	hal/at90usb646/LUFAConfig.h
+	hal/at90usb646/parallel_bus.c
+	hal/at90usb646/spi.c
+	hal/at90usb646/spi_private.h
+	hal/at90usb646/usbcdc.c
+	hal/at90usb646/usbcdc_hw.h
+)