Set up CMake build

This allows building with CMake instead of Eclipse. The reasoning behind
this is to make the code more easily portable to other architectures,
and to move away from being dependent on Eclipse.

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()

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)

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
+)