This commit is contained in:
2025-04-04 04:46:26 +02:00
commit 65a1e01aa6
9 changed files with 611 additions and 0 deletions

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.idea/.gitignore generated vendored Normal file
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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.idea/.name generated Normal file
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avrtest

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.idea/avrtest.iml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module classpath="CMake" type="CPP_MODULE" version="4" />

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.idea/discord.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DiscordProjectSettings">
<option name="show" value="PROJECT_FILES" />
<option name="description" value="" />
</component>
</project>

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.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CMakePythonSetting">
<option name="pythonIntegrationState" value="YES" />
</component>
<component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
<component name="WestSettings"><![CDATA[{}]]></component>
</project>

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.idea/modules.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/avrtest.iml" filepath="$PROJECT_DIR$/.idea/avrtest.iml" />
</modules>
</component>
</project>

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CMakeLists.txt Normal file
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##########################################################################
# "THE ANY BEVERAGE-WARE LICENSE" (Revision 42 - based on beer-ware
# license):
# <dev@layer128.net> wrote this file. As long as you retain this notice
# you can do whatever you want with this stuff. If we meet some day, and
# you think this stuff is worth it, you can buy me a be(ve)er(age) in
# return. (I don't like beer much.)
#
# Matthias Kleemann
##########################################################################
cmake_minimum_required(VERSION 3.5)
### TOOLCHAIN SETUP AREA #################################################
# Set any variables used in the toolchain prior project() call. In that
# case they are already set and used.
##########################################################################
##########################################################################
# tools to beused for programming the AVR
##########################################################################
set(AVR_UPLOADTOOL avrdude)
set(AVR_PROGRAMMER usbasp-clone)
set(AVR_UPLOADTOOL_PORT usb)
##########################################################################
# AVR and fuses needs to be set
##########################################################################
set(AVR_MCU atmega32)
set(AVR_H_FUSE 0x99)
set(AVR_L_FUSE 0xF1)
set(AVR_LOCK_FUSE 0xFF)
### END TOOLCHAIN SETUP AREA #############################################
# Intentionally left blank, due to a different approach of using the
# toolchain file via -DCMAKE_TOOLCHAIN_FILE=path/to/generic-gcc-avr.cmake
# at the cmake command line call
#
include(generic-gcc-avr.cmake)
##########################################################################
# name your project
##########################################################################
project(avrtest)
##########################################################################
# status messages
##########################################################################
message(STATUS "Current uploadtool is: ${AVR_UPLOADTOOL}")
message(STATUS "Current programmer is: ${AVR_PROGRAMMER}")
message(STATUS "Current upload port is: ${AVR_UPLOADTOOL_PORT}")
message(STATUS "Current uploadtool options are: ${AVR_UPLOADTOOL_OPTIONS}")
message(STATUS "Current MCU is set to: ${AVR_MCU}")
message(STATUS "Current H_FUSE is set to: ${AVR_H_FUSE}")
message(STATUS "Current L_FUSE is set to: ${AVR_L_FUSE}")
message(STATUS "Current E_FUSE is set to: ${AVR_E_FUSE}")
##########################################################################
# set build type
##########################################################################
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release)
endif(NOT CMAKE_BUILD_TYPE)
##########################################################################
# needs to be defined for AVR toolchain
##########################################################################
set(MCU_SPEED "8000000UL")
##########################################################################
# some cmake cross-compile necessities
##########################################################################
if(DEFINED ENV{AVR_FIND_ROOT_PATH})
set(CMAKE_FIND_ROOT_PATH $ENV{AVR_FIND_ROOT_PATH})
else(DEFINED ENV{AVR_FIND_ROOT_PATH})
if(EXISTS "/opt/local/avr")
set(CMAKE_FIND_ROOT_PATH "/opt/local/avr")
elseif(EXISTS "/usr/avr")
set(CMAKE_FIND_ROOT_PATH "/usr/avr")
elseif(EXISTS "/usr/lib/avr")
set(CMAKE_FIND_ROOT_PATH "/usr/lib/avr")
elseif(EXISTS "/usr/local/CrossPack-AVR")
set(CMAKE_FIND_ROOT_PATH "/usr/local/CrossPack-AVR")
else(EXISTS "/opt/local/avr")
message(FATAL_ERROR "Please set AVR_FIND_ROOT_PATH in your environment.")
endif(EXISTS "/opt/local/avr")
endif(DEFINED ENV{AVR_FIND_ROOT_PATH})
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
# not added automatically, since CMAKE_SYSTEM_NAME is "generic"
set(CMAKE_SYSTEM_INCLUDE_PATH "${CMAKE_FIND_ROOT_PATH}/include")
set(CMAKE_SYSTEM_LIBRARY_PATH "${CMAKE_FIND_ROOT_PATH}/lib")
##########################################################################
# status messages for generating
##########################################################################
message(STATUS "Set CMAKE_FIND_ROOT_PATH to ${CMAKE_FIND_ROOT_PATH}")
message(STATUS "Set CMAKE_SYSTEM_INCLUDE_PATH to ${CMAKE_SYSTEM_INCLUDE_PATH}")
message(STATUS "Set CMAKE_SYSTEM_LIBRARY_PATH to ${CMAKE_SYSTEM_LIBRARY_PATH}")
##########################################################################
# set compiler options for build types
##########################################################################
if(CMAKE_BUILD_TYPE MATCHES Release)
set(CMAKE_C_FLAGS_RELEASE "-Os")
set(CMAKE_CXX_FLAGS_RELEASE "-Os")
endif(CMAKE_BUILD_TYPE MATCHES Release)
if(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
set(CMAKE_C_FLAGS_RELWITHDEBINFO "-Os -save-temps -g -gdwarf-3 -gstrict-dwarf")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-Os -save-temps -g -gdwarf-3 -gstrict-dwarf")
endif(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo)
if(CMAKE_BUILD_TYPE MATCHES Debug)
set(CMAKE_C_FLAGS_DEBUG "-O0 -save-temps -g -gdwarf-3 -gstrict-dwarf")
set(CMAKE_CXX_FLAGS_DEBUG "-O0 -save-temps -g -gdwarf-3 -gstrict-dwarf")
endif(CMAKE_BUILD_TYPE MATCHES Debug)
##########################################################################
# compiler options for all build types
##########################################################################
add_definitions("-DF_CPU=${MCU_SPEED}")
add_definitions("-fpack-struct")
add_definitions("-fshort-enums")
add_definitions("-Wall")
add_definitions("-Werror")
add_definitions("-pedantic")
add_definitions("-pedantic-errors")
add_definitions("-funsigned-char")
add_definitions("-funsigned-bitfields")
add_definitions("-ffunction-sections")
add_definitions("-c")
add_definitions("-std=gnu99")
##########################################################################
# testing functions w/o source files - gets FATAL_ERROR
##########################################################################
# add_avr_library(mytestlib_breaks_generation)
add_avr_executable(
avrtest
main.c
)

423
generic-gcc-avr.cmake Normal file
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##########################################################################
# "THE ANY BEVERAGE-WARE LICENSE" (Revision 42 - based on beer-ware
# license):
# <dev@layer128.net> wrote this file. As long as you retain this notice
# you can do whatever you want with this stuff. If we meet some day, and
# you think this stuff is worth it, you can buy me a be(ve)er(age) in
# return. (I don't like beer much.)
#
# Matthias Kleemann
##########################################################################
##########################################################################
# The toolchain requires some variables set.
#
# AVR_MCU (default: atmega8)
# the type of AVR the application is built for
# AVR_L_FUSE (NO DEFAULT)
# the LOW fuse value for the MCU used
# AVR_H_FUSE (NO DEFAULT)
# the HIGH fuse value for the MCU used
# AVR_UPLOADTOOL (default: avrdude)
# the application used to upload to the MCU
# NOTE: The toolchain is currently quite specific about
# the commands used, so it needs tweaking.
# AVR_UPLOADTOOL_PORT (default: usb)
# the port used for the upload tool, e.g. usb
# AVR_PROGRAMMER (default: avrispmkII)
# the programmer hardware used, e.g. avrispmkII
##########################################################################
##########################################################################
# options
##########################################################################
option(WITH_MCU "Add the mCU type to the target file name." ON)
##########################################################################
# executables in use
##########################################################################
find_program(AVR_CC avr-gcc REQUIRED)
find_program(AVR_CXX avr-g++ REQUIRED)
find_program(AVR_OBJCOPY avr-objcopy REQUIRED)
find_program(AVR_SIZE_TOOL avr-size REQUIRED)
find_program(AVR_OBJDUMP avr-objdump REQUIRED)
##########################################################################
# toolchain starts with defining mandatory variables
##########################################################################
set(CMAKE_SYSTEM_NAME Generic)
set(CMAKE_SYSTEM_PROCESSOR avr)
set(CMAKE_C_COMPILER ${AVR_CC})
set(CMAKE_CXX_COMPILER ${AVR_CXX})
##########################################################################
# Identification
##########################################################################
set(AVR 1)
##########################################################################
# some necessary tools and variables for AVR builds, which may not
# defined yet
# - AVR_UPLOADTOOL
# - AVR_UPLOADTOOL_PORT
# - AVR_PROGRAMMER
# - AVR_MCU
# - AVR_SIZE_ARGS
##########################################################################
# default upload tool
if (NOT AVR_UPLOADTOOL)
set(
AVR_UPLOADTOOL avrdude
CACHE STRING "Set default upload tool: avrdude"
)
find_program(AVR_UPLOADTOOL avrdude)
endif (NOT AVR_UPLOADTOOL)
# default upload tool port
if (NOT AVR_UPLOADTOOL_PORT)
set(
AVR_UPLOADTOOL_PORT usb
CACHE STRING "Set default upload tool port: usb"
)
endif (NOT AVR_UPLOADTOOL_PORT)
# default programmer (hardware)
if (NOT AVR_PROGRAMMER)
set(
AVR_PROGRAMMER avrispmkII
CACHE STRING "Set default programmer hardware model: avrispmkII"
)
endif (NOT AVR_PROGRAMMER)
# default MCU (chip)
if (NOT AVR_MCU)
set(
AVR_MCU atmega8
CACHE STRING "Set default MCU: atmega8 (see 'avr-gcc --target-help' for valid values)"
)
endif (NOT AVR_MCU)
#default avr-size args
if (NOT AVR_SIZE_ARGS)
if (APPLE)
set(AVR_SIZE_ARGS -B)
else (APPLE)
set(AVR_SIZE_ARGS -C;--mcu=${AVR_MCU})
endif (APPLE)
endif (NOT AVR_SIZE_ARGS)
# prepare base flags for upload tool
set(AVR_UPLOADTOOL_BASE_OPTIONS -p ${AVR_MCU} -c ${AVR_PROGRAMMER})
# use AVR_UPLOADTOOL_BAUDRATE as baudrate for upload tool (if defined)
if (AVR_UPLOADTOOL_BAUDRATE)
set(AVR_UPLOADTOOL_BASE_OPTIONS ${AVR_UPLOADTOOL_BASE_OPTIONS} -b ${AVR_UPLOADTOOL_BAUDRATE})
endif ()
##########################################################################
# check build types:
# - Debug
# - Release
# - RelWithDebInfo
#
# Release is chosen, because of some optimized functions in the
# AVR toolchain, e.g. _delay_ms().
##########################################################################
if (NOT ((CMAKE_BUILD_TYPE MATCHES Release) OR
(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo) OR
(CMAKE_BUILD_TYPE MATCHES Debug) OR
(CMAKE_BUILD_TYPE MATCHES MinSizeRel)))
set(
CMAKE_BUILD_TYPE Release
CACHE STRING "Choose cmake build type: Debug Release RelWithDebInfo MinSizeRel"
FORCE
)
endif (NOT ((CMAKE_BUILD_TYPE MATCHES Release) OR
(CMAKE_BUILD_TYPE MATCHES RelWithDebInfo) OR
(CMAKE_BUILD_TYPE MATCHES Debug) OR
(CMAKE_BUILD_TYPE MATCHES MinSizeRel)))
##########################################################################
##########################################################################
# target file name add-on
##########################################################################
if (WITH_MCU)
set(MCU_TYPE_FOR_FILENAME "-${AVR_MCU}")
else (WITH_MCU)
set(MCU_TYPE_FOR_FILENAME "")
endif (WITH_MCU)
##########################################################################
# add_avr_executable
# - IN_VAR: EXECUTABLE_NAME
#
# Creates targets and dependencies for AVR toolchain, building an
# executable. Calls add_executable with ELF file as target name, so
# any link dependencies need to be using that target, e.g. for
# target_link_libraries(<EXECUTABLE_NAME>-${AVR_MCU}.elf ...).
##########################################################################
function(add_avr_executable EXECUTABLE_NAME)
if (NOT ARGN)
message(FATAL_ERROR "No source files given for ${EXECUTABLE_NAME}.")
endif (NOT ARGN)
# set file names
set(elf_file ${EXECUTABLE_NAME}${MCU_TYPE_FOR_FILENAME}.elf)
set(hex_file ${EXECUTABLE_NAME}${MCU_TYPE_FOR_FILENAME}.hex)
set(lst_file ${EXECUTABLE_NAME}${MCU_TYPE_FOR_FILENAME}.lst)
set(map_file ${EXECUTABLE_NAME}${MCU_TYPE_FOR_FILENAME}.map)
set(eeprom_image ${EXECUTABLE_NAME}${MCU_TYPE_FOR_FILENAME}-eeprom.hex)
set(${EXECUTABLE_NAME}_ELF_TARGET ${elf_file} PARENT_SCOPE)
set(${EXECUTABLE_NAME}_HEX_TARGET ${hex_file} PARENT_SCOPE)
set(${EXECUTABLE_NAME}_LST_TARGET ${lst_file} PARENT_SCOPE)
set(${EXECUTABLE_NAME}_MAP_TARGET ${map_file} PARENT_SCOPE)
set(${EXECUTABLE_NAME}_EEPROM_TARGET ${eeprom_file} PARENT_SCOPE)
# elf file
add_executable(${elf_file} EXCLUDE_FROM_ALL ${ARGN})
set_target_properties(
${elf_file}
PROPERTIES
COMPILE_FLAGS "-mmcu=${AVR_MCU}"
LINK_FLAGS "-mmcu=${AVR_MCU} -Wl,--gc-sections -mrelax -Wl,-Map,${map_file}"
)
add_custom_command(
OUTPUT ${hex_file}
COMMAND
${AVR_OBJCOPY} -j .text -j .data -O ihex ${elf_file} ${hex_file}
COMMAND
${AVR_SIZE_TOOL} ${AVR_SIZE_ARGS} ${elf_file}
DEPENDS ${elf_file}
)
add_custom_command(
OUTPUT ${lst_file}
COMMAND
${AVR_OBJDUMP} -d ${elf_file} > ${lst_file}
DEPENDS ${elf_file}
)
# eeprom
add_custom_command(
OUTPUT ${eeprom_image}
COMMAND
${AVR_OBJCOPY} -j .eeprom --set-section-flags=.eeprom=alloc,load
--change-section-lma .eeprom=0 --no-change-warnings
-O ihex ${elf_file} ${eeprom_image}
DEPENDS ${elf_file}
)
add_custom_target(
${EXECUTABLE_NAME}
ALL
DEPENDS ${hex_file} ${lst_file} ${eeprom_image}
)
set_target_properties(
${EXECUTABLE_NAME}
PROPERTIES
OUTPUT_NAME "${elf_file}"
)
# clean
get_directory_property(clean_files ADDITIONAL_MAKE_CLEAN_FILES)
set_directory_properties(
PROPERTIES
ADDITIONAL_MAKE_CLEAN_FILES "${map_file}"
)
# upload - with avrdude
add_custom_target(
upload_${EXECUTABLE_NAME}
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} ${AVR_UPLOADTOOL_OPTIONS}
-U flash:w:${hex_file}
-P ${AVR_UPLOADTOOL_PORT}
DEPENDS ${hex_file}
COMMENT "Uploading ${hex_file} to ${AVR_MCU} using ${AVR_PROGRAMMER}"
)
# upload eeprom only - with avrdude
# see also bug http://savannah.nongnu.org/bugs/?40142
add_custom_target(
upload_${EXECUTABLE_NAME}_eeprom
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} ${AVR_UPLOADTOOL_OPTIONS}
-U eeprom:w:${eeprom_image}
-P ${AVR_UPLOADTOOL_PORT}
DEPENDS ${eeprom_image}
COMMENT "Uploading ${eeprom_image} to ${AVR_MCU} using ${AVR_PROGRAMMER}"
)
# disassemble
add_custom_target(
disassemble_${EXECUTABLE_NAME}
${AVR_OBJDUMP} -h -S ${elf_file} > ${EXECUTABLE_NAME}.lst
DEPENDS ${elf_file}
)
endfunction(add_avr_executable)
##########################################################################
# add_avr_library
# - IN_VAR: LIBRARY_NAME
#
# Calls add_library with an optionally concatenated name
# <LIBRARY_NAME>${MCU_TYPE_FOR_FILENAME}.
# This needs to be used for linking against the library, e.g. calling
# target_link_libraries(...).
##########################################################################
function(add_avr_library LIBRARY_NAME)
if (NOT ARGN)
message(FATAL_ERROR "No source files given for ${LIBRARY_NAME}.")
endif (NOT ARGN)
set(lib_file ${LIBRARY_NAME}${MCU_TYPE_FOR_FILENAME})
set(${LIBRARY_NAME}_LIB_TARGET ${elf_file} PARENT_SCOPE)
add_library(${lib_file} STATIC ${ARGN})
set_target_properties(
${lib_file}
PROPERTIES
COMPILE_FLAGS "-mmcu=${AVR_MCU}"
OUTPUT_NAME "${lib_file}"
)
if (NOT TARGET ${LIBRARY_NAME})
add_custom_target(
${LIBRARY_NAME}
ALL
DEPENDS ${lib_file}
)
set_target_properties(
${LIBRARY_NAME}
PROPERTIES
OUTPUT_NAME "${lib_file}"
)
endif (NOT TARGET ${LIBRARY_NAME})
endfunction(add_avr_library)
##########################################################################
# avr_target_link_libraries
# - IN_VAR: EXECUTABLE_TARGET
# - ARGN : targets and files to link to
#
# Calls target_link_libraries with AVR target names (concatenation,
# extensions and so on.
##########################################################################
function(avr_target_link_libraries EXECUTABLE_TARGET)
if (NOT ARGN)
message(FATAL_ERROR "Nothing to link to ${EXECUTABLE_TARGET}.")
endif (NOT ARGN)
get_target_property(TARGET_LIST ${EXECUTABLE_TARGET} OUTPUT_NAME)
foreach (TGT ${ARGN})
if (TARGET ${TGT})
get_target_property(ARG_NAME ${TGT} OUTPUT_NAME)
list(APPEND NON_TARGET_LIST ${ARG_NAME})
else (TARGET ${TGT})
list(APPEND NON_TARGET_LIST ${TGT})
endif (TARGET ${TGT})
endforeach (TGT ${ARGN})
target_link_libraries(${TARGET_LIST} ${NON_TARGET_LIST})
endfunction(avr_target_link_libraries EXECUTABLE_TARGET)
##########################################################################
# avr_target_include_directories
#
# Calls target_include_directories with AVR target names
##########################################################################
function(avr_target_include_directories EXECUTABLE_TARGET)
if (NOT ARGN)
message(FATAL_ERROR "No include directories to add to ${EXECUTABLE_TARGET}.")
endif ()
get_target_property(TARGET_LIST ${EXECUTABLE_TARGET} OUTPUT_NAME)
set(extra_args ${ARGN})
target_include_directories(${TARGET_LIST} ${extra_args})
endfunction()
##########################################################################
# avr_target_compile_definitions
#
# Calls target_compile_definitions with AVR target names
##########################################################################
function(avr_target_compile_definitions EXECUTABLE_TARGET)
if (NOT ARGN)
message(FATAL_ERROR "No compile definitions to add to ${EXECUTABLE_TARGET}.")
endif ()
get_target_property(TARGET_LIST ${EXECUTABLE_TARGET} OUTPUT_NAME)
set(extra_args ${ARGN})
target_compile_definitions(${TARGET_LIST} ${extra_args})
endfunction()
function(avr_generate_fixed_targets)
# get status
add_custom_target(
get_status
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} -P ${AVR_UPLOADTOOL_PORT} -n -v
COMMENT "Get status from ${AVR_MCU}"
)
# get fuses
add_custom_target(
get_fuses
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} -P ${AVR_UPLOADTOOL_PORT} -n
-U lfuse:r:-:b
-U hfuse:r:-:b
-U lock:r:-:b
COMMENT "Get fuses from ${AVR_MCU}"
)
# set fuses
add_custom_target(
set_fuses
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} -P ${AVR_UPLOADTOOL_PORT}
-U lfuse:w:${AVR_L_FUSE}:m
-U hfuse:w:${AVR_H_FUSE}:m
-U lock:w:${AVR_LOCK_FUSE}:m
COMMENT "Setup: High Fuse: ${AVR_H_FUSE} Low Fuse: ${AVR_L_FUSE}"
)
# get oscillator calibration
add_custom_target(
get_calibration
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} -P ${AVR_UPLOADTOOL_PORT}
-U calibration:r:${AVR_MCU}_calib.tmp:r
COMMENT "Write calibration status of internal oscillator to ${AVR_MCU}_calib.tmp."
)
# set oscillator calibration
add_custom_target(
set_calibration
${AVR_UPLOADTOOL} ${AVR_UPLOADTOOL_BASE_OPTIONS} -P ${AVR_UPLOADTOOL_PORT}
-U calibration:w:${AVR_MCU}_calib.hex
COMMENT "Program calibration status of internal oscillator from ${AVR_MCU}_calib.hex."
)
endfunction()
##########################################################################
# Bypass the link step in CMake's "compiler sanity test" check
#
# CMake throws in a try_compile() target test in some generators, but does
# not know that this is a cross compiler so the executable can't link.
# Change the target type:
#
# https://stackoverflow.com/q/53633705
##########################################################################
set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")

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main.c Normal file
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#include <avr/io.h>
#include <util/delay.h>
int main(void) {
DDRA = (1 << 7);
while(1) {
PORTA ^= (1 << 7);
_delay_ms(1000);
}
}