149 lines
6.2 KiB
CMake
149 lines
6.2 KiB
CMake
##########################################################################
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# "THE ANY BEVERAGE-WARE LICENSE" (Revision 42 - based on beer-ware
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# license):
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# <dev@layer128.net> wrote this file. As long as you retain this notice
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# you can do whatever you want with this stuff. If we meet some day, and
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# you think this stuff is worth it, you can buy me a be(ve)er(age) in
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# return. (I don't like beer much.)
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#
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# Matthias Kleemann
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##########################################################################
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cmake_minimum_required(VERSION 3.5)
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### TOOLCHAIN SETUP AREA #################################################
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# Set any variables used in the toolchain prior project() call. In that
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# case they are already set and used.
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##########################################################################
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##########################################################################
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# tools to beused for programming the AVR
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##########################################################################
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set(AVR_UPLOADTOOL avrdude)
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set(AVR_PROGRAMMER usbasp-clone)
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set(AVR_UPLOADTOOL_PORT usb)
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##########################################################################
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# AVR and fuses needs to be set
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##########################################################################
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set(AVR_MCU atmega32)
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set(AVR_H_FUSE 0xD9)
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set(AVR_L_FUSE 0xA4)
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set(AVR_LOCK_FUSE 0xFF)
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set(AVR_UPLOADTOOL_BAUDRATE 125kHz)
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### END TOOLCHAIN SETUP AREA #############################################
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# Intentionally left blank, due to a different approach of using the
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# toolchain file via -DCMAKE_TOOLCHAIN_FILE=path/to/generic-gcc-avr.cmake
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# at the cmake command line call
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#
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include(generic-gcc-avr.cmake)
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##########################################################################
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# name your project
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##########################################################################
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project(avrtest)
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##########################################################################
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# status messages
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##########################################################################
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message(STATUS "Current uploadtool is: ${AVR_UPLOADTOOL}")
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message(STATUS "Current programmer is: ${AVR_PROGRAMMER}")
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message(STATUS "Current upload port is: ${AVR_UPLOADTOOL_PORT}")
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message(STATUS "Current uploadtool options are: ${AVR_UPLOADTOOL_OPTIONS}")
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message(STATUS "Current MCU is set to: ${AVR_MCU}")
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message(STATUS "Current H_FUSE is set to: ${AVR_H_FUSE}")
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message(STATUS "Current L_FUSE is set to: ${AVR_L_FUSE}")
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message(STATUS "Current E_FUSE is set to: ${AVR_E_FUSE}")
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##########################################################################
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# set build type
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##########################################################################
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif(NOT CMAKE_BUILD_TYPE)
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##########################################################################
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# needs to be defined for AVR toolchain
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##########################################################################
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set(MCU_SPEED "8000000UL")
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##########################################################################
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# some cmake cross-compile necessities
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##########################################################################
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if(DEFINED ENV{AVR_FIND_ROOT_PATH})
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set(CMAKE_FIND_ROOT_PATH $ENV{AVR_FIND_ROOT_PATH})
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else(DEFINED ENV{AVR_FIND_ROOT_PATH})
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if(EXISTS "/opt/local/avr")
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set(CMAKE_FIND_ROOT_PATH "/opt/local/avr")
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elseif(EXISTS "/usr/avr")
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set(CMAKE_FIND_ROOT_PATH "/usr/avr")
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elseif(EXISTS "/usr/lib/avr")
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set(CMAKE_FIND_ROOT_PATH "/usr/lib/avr")
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elseif(EXISTS "/usr/local/CrossPack-AVR")
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set(CMAKE_FIND_ROOT_PATH "/usr/local/CrossPack-AVR")
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else(EXISTS "/opt/local/avr")
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message(FATAL_ERROR "Please set AVR_FIND_ROOT_PATH in your environment.")
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endif(EXISTS "/opt/local/avr")
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endif(DEFINED ENV{AVR_FIND_ROOT_PATH})
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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# not added automatically, since CMAKE_SYSTEM_NAME is "generic"
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set(CMAKE_SYSTEM_INCLUDE_PATH "${CMAKE_FIND_ROOT_PATH}/include")
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set(CMAKE_SYSTEM_LIBRARY_PATH "${CMAKE_FIND_ROOT_PATH}/lib")
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##########################################################################
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# status messages for generating
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##########################################################################
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message(STATUS "Set CMAKE_FIND_ROOT_PATH to ${CMAKE_FIND_ROOT_PATH}")
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message(STATUS "Set CMAKE_SYSTEM_INCLUDE_PATH to ${CMAKE_SYSTEM_INCLUDE_PATH}")
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message(STATUS "Set CMAKE_SYSTEM_LIBRARY_PATH to ${CMAKE_SYSTEM_LIBRARY_PATH}")
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##########################################################################
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# set compiler options for build types
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##########################################################################
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if(CMAKE_BUILD_TYPE MATCHES Release)
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set(CMAKE_C_FLAGS_RELEASE "-Os")
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set(CMAKE_CXX_FLAGS_RELEASE "-Os")
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endif(CMAKE_BUILD_TYPE MATCHES Release)
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if(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "-Os -save-temps -g -gdwarf-3 -gstrict-dwarf")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-Os -save-temps -g -gdwarf-3 -gstrict-dwarf")
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endif(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
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if(CMAKE_BUILD_TYPE MATCHES Debug)
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set(CMAKE_C_FLAGS_DEBUG "-O0 -save-temps -g -gdwarf-3 -gstrict-dwarf")
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set(CMAKE_CXX_FLAGS_DEBUG "-O0 -save-temps -g -gdwarf-3 -gstrict-dwarf")
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endif(CMAKE_BUILD_TYPE MATCHES Debug)
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##########################################################################
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# compiler options for all build types
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##########################################################################
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add_definitions("-DF_CPU=${MCU_SPEED}")
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add_definitions("-fpack-struct")
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add_definitions("-fshort-enums")
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add_definitions("-Wall")
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add_definitions("-Werror")
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add_definitions("-pedantic")
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add_definitions("-pedantic-errors")
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add_definitions("-funsigned-char")
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add_definitions("-funsigned-bitfields")
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add_definitions("-ffunction-sections")
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add_definitions("-c")
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add_definitions("-std=gnu99")
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##########################################################################
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# testing functions w/o source files - gets FATAL_ERROR
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##########################################################################
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# add_avr_library(mytestlib_breaks_generation)
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avr_generate_fixed_targets()
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add_avr_executable(
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avrtest
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i2c.c
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i2c.h
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main.c
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) |