Arduino nano cmake toolchain

arduino-toolchain.cmake

set(ARDUINOCORE ARDUINO_CORE_NOT_FOUND CACHE FILEPATH "")
set(CMAKE_SYSTEM_NAME "Generic")
set(CMAKE_C_COMPILER avr-gcc.exe)
set(CMAKE_CXX_COMPILER avr-g++.exe)
include_directories("${ARDUINOCORE}/cores/arduino")
include_directories("${ARDUINOCORE}/variants/standard")
set(CMAKE_CXX_FLAGS "-MMD -mmcu=atmega328p -Wall -DF_CPU=16000000L -Os")
set(CMAKE_C_FLAGS "-MMD -mmcu=atmega328p -Wall -DF_CPU=16000000L -Os")
add_library(core STATIC
	"${ARDUINOCORE}/cores/arduino/main.cpp"
	"${ARDUINOCORE}/cores/arduino/wiring.c"
	"${ARDUINOCORE}/cores/arduino/wiring_digital.c"
	"${ARDUINOCORE}/cores/arduino/wiring_analog.c"
	"${ARDUINOCORE}/cores/arduino/hooks.c"
)

CMakeLists.txt

cmake_minimum_required(VERSION 3.10)
add_executable(program program.cpp)
target_link_libraries(program core)

add_custom_command(
	TARGET program POST_BUILD
	COMMAND ${CMAKE_OBJCOPY} -O ihex -R .eeprom program program.hex
	COMMENT "OBJCOPY program"
	BYPRODUCTS program.hex
)

program.cpp

#include <Arduino.h>
#include "program.ino"