# CMake toolchain file for AVR microcontrollers
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_PROCESSOR avr)

set(AVR_MCU "attiny24")
set(AVR_PROGRAMMER "usbasp")

# compiler and linker settings
set(CMAKE_C_COMPILER avr-gcc)
set(CMAKE_CXX_COMPILER avr-g++)
set(CMAKE_OBJCOPY avr-objcopy)
set(CMAKE_SIZE_UTIL avr-size)

set(CMAKE_EXECUTABLE_SUFFIX_ASM     ".elf")
set(CMAKE_EXECUTABLE_SUFFIX_C       ".elf")
set(CMAKE_EXECUTABLE_SUFFIX_CXX     ".elf")

# compiler flags
# set(CMAKE_C_FLAGS "-mmcu=${AVR_MCU} -Wall -Os" CACHE STRING "")
set(CMAKE_C_FLAGS "-mmcu=${AVR_MCU} -Wall -Os -DF_CPU=8000000UL" CACHE STRING "")

# compiler flags
set(CMAKE_EXE_LINKER_FLAGS "-mmcu=${AVR_MCU}" CACHE STRING "")

# 
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)

####