ide: the Atmel Studio solution master has, on the libavr port
master opens in Studio, so this branch should too. The solution builds example/main.cpp — the port's only executable, the driver itself being an INTERFACE library — for the ATmega328P that solution targeted, and the acceptance is not that it builds but that it builds the same firmware: .text comes out byte-identical to CMake's at 1242 B. One project, one chip. Studio carries avrdevice as a project property, so the attiny85 half of the presets would need a second project rather than a second configuration; CMake stays the build system and covers both. libavr is found beside this repo, anchored to the project directory rather than written relative to the generated makefile, which runs from the configuration's output directory. No LIBAVR_ROOT: a variable exported in a shell is invisible to Studio launched from the Start menu. Both configurations verified headless with LIBAVR_ROOT unset, and the flag mirror checked against the CMake build's own compile_commands.json. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
BlackMark
7
.gitignore
vendored
7
.gitignore
vendored
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build/
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.cache/
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# Atmel Studio: generated per machine, its build outputs, and per-user state
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ide/*.componentinfo.xml
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ide/Debug/
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ide/Release/
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ide/.vs/
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ide/*.log
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31
README.md
31
README.md
@@ -24,6 +24,37 @@ cmake --build --preset attiny85-generated
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Presets cover attiny85/atmega328p in both libavr modes (generated and
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reflect). The legacy yazoalfa-based driver lives on the `master` branch.
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## Atmel Studio
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`master` carries a Studio solution, so this branch does too: `ide/ds3231.atsln`
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builds `example/main.cpp` for the ATmega328P — the chip that solution targeted —
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to a **byte-identical `.text`** (1242 B) against the CMake build, with the flags
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mirrored by hand. One project, one chip: `avrdevice` is a project-level property
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in Studio, so the attiny85 half of the presets has no equivalent here, and CMake
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remains the build system.
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Studio expects libavr checked out **beside this repo** and finds it at
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`$(MSBuildProjectDirectory)\..\..\libavr\include` — anchored to the project,
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because a plain relative path is resolved against the generated makefile's
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directory (the configuration's output directory), not the project's. There is no
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`LIBAVR_ROOT` escape hatch: a variable exported in a shell is invisible to Studio
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launched from the Start menu. It also needs a GCC 16.1 toolchain registered as
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flavour `avr-g++-16.1.0`, nothing older reaching `-std=c++26`.
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One generated file is required before the project will load, and one command
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checks the flags have not drifted (both from libavr's `tools/atmelstudio/`):
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```sh
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python ../libavr/tools/atmelstudio/componentinfo.py \
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ide/ds3231.componentinfo.xml --device ATmega328P
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python ../libavr/tools/atmelstudio/check-flags.py --solution ide/ds3231.atsln \
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--compile-commands build/atmega328p-generated/compile_commands.json \
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--log build/atmelstudio.log
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```
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Release is what the gate compares, the presets defining no debug build; Debug
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carries the `-Og -gdwarf-4` pair libavr's own debug preset uses.
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Differences from legacy: weekday-rate alarms now actually set the DY bit
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(the old `setAlarmHelper` always cleared it), reads/writes are single
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coherent bus transactions, and errors are reported instead of ignored.
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22
ide/ds3231.atsln
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22
ide/ds3231.atsln
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Microsoft Visual Studio Solution File, Format Version 12.00
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# Atmel Studio Solution File, Format Version 11.00
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VisualStudioVersion = 14.0.23107.0
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "ds3231", "ds3231.cppproj", "{7B3E5A41-9C26-4D18-8F52-6A0D31C74BE9}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|AVR = Debug|AVR
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Release|AVR = Release|AVR
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{7B3E5A41-9C26-4D18-8F52-6A0D31C74BE9}.Debug|AVR.ActiveCfg = Debug|AVR
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{7B3E5A41-9C26-4D18-8F52-6A0D31C74BE9}.Debug|AVR.Build.0 = Debug|AVR
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{7B3E5A41-9C26-4D18-8F52-6A0D31C74BE9}.Release|AVR.ActiveCfg = Release|AVR
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{7B3E5A41-9C26-4D18-8F52-6A0D31C74BE9}.Release|AVR.Build.0 = Release|AVR
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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EndGlobal
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108
ide/ds3231.cppproj
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ide/ds3231.cppproj
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="14.0">
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<PropertyGroup>
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<SchemaVersion>2.0</SchemaVersion>
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<ProjectVersion>7.0</ProjectVersion>
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<ToolchainName>com.Atmel.AVRGCC8.CPP</ToolchainName>
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<ProjectGuid>7b3e5a41-9c26-4d18-8f52-6a0d31c74be9</ProjectGuid>
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<avrdevice>ATmega328P</avrdevice>
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<avrdeviceseries>none</avrdeviceseries>
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<OutputType>Executable</OutputType>
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<Language>CPP</Language>
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<OutputFileName>$(MSBuildProjectName)</OutputFileName>
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<OutputFileExtension>.elf</OutputFileExtension>
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<OutputDirectory>$(MSBuildProjectDirectory)\$(Configuration)</OutputDirectory>
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<AssemblyName>ds3231</AssemblyName>
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<Name>ds3231</Name>
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<RootNamespace>ds3231</RootNamespace>
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<ToolchainFlavour>avr-g++-16.1.0</ToolchainFlavour>
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<KeepTimersRunning>true</KeepTimersRunning>
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<OverrideVtor>false</OverrideVtor>
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<CacheFlash>true</CacheFlash>
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<ProgFlashFromRam>true</ProgFlashFromRam>
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<RamSnippetAddress>0x20000000</RamSnippetAddress>
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<UncachedRange />
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<preserveEEPROM>true</preserveEEPROM>
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<OverrideVtorValue>exception_table</OverrideVtorValue>
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<BootSegment>2</BootSegment>
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<ResetRule>0</ResetRule>
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<eraseonlaunchrule>0</eraseonlaunchrule>
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<EraseKey />
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
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<ToolchainSettings>
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<AvrGccCpp>
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<avrgcc.common.Device>-mmcu=atmega328p</avrgcc.common.Device>
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<avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
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<avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
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<avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
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<avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
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<avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
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<avrgcccpp.compiler.symbols.DefSymbols>
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<ListValues>
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<Value>NDEBUG</Value>
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</ListValues>
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</avrgcccpp.compiler.symbols.DefSymbols>
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<avrgcccpp.compiler.directories.IncludePaths>
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<ListValues>
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<Value>$(MSBuildProjectDirectory)\..\include</Value>
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<Value>$(MSBuildProjectDirectory)\..\..\libavr\include</Value>
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</ListValues>
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</avrgcccpp.compiler.directories.IncludePaths>
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<avrgcccpp.compiler.optimization.level>Optimize for size (-Os)</avrgcccpp.compiler.optimization.level>
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<avrgcccpp.compiler.optimization.PrepareFunctionsForGarbageCollection>True</avrgcccpp.compiler.optimization.PrepareFunctionsForGarbageCollection>
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<avrgcccpp.compiler.optimization.PrepareDataForGarbageCollection>True</avrgcccpp.compiler.optimization.PrepareDataForGarbageCollection>
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<avrgcccpp.compiler.warnings.AllWarnings>True</avrgcccpp.compiler.warnings.AllWarnings>
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<avrgcccpp.compiler.miscellaneous.OtherFlags>-std=c++26 -Wextra -mrelax -fno-exceptions -fno-rtti -fno-threadsafe-statics</avrgcccpp.compiler.miscellaneous.OtherFlags>
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<avrgcccpp.linker.optimization.GarbageCollectUnusedSections>True</avrgcccpp.linker.optimization.GarbageCollectUnusedSections>
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<avrgcccpp.linker.miscellaneous.LinkerFlags>-mrelax</avrgcccpp.linker.miscellaneous.LinkerFlags>
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</AvrGccCpp>
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</ToolchainSettings>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
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<ToolchainSettings>
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<AvrGccCpp>
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<avrgcc.common.Device>-mmcu=atmega328p</avrgcc.common.Device>
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<avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
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<avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
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<avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
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<avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
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<avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
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<avrgcccpp.compiler.symbols.DefSymbols>
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<ListValues>
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<Value>DEBUG</Value>
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</ListValues>
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</avrgcccpp.compiler.symbols.DefSymbols>
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<avrgcccpp.compiler.directories.IncludePaths>
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<ListValues>
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<Value>$(MSBuildProjectDirectory)\..\include</Value>
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<Value>$(MSBuildProjectDirectory)\..\..\libavr\include</Value>
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</ListValues>
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</avrgcccpp.compiler.directories.IncludePaths>
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<avrgcccpp.compiler.optimization.level>Optimize debugging experience (-Og)</avrgcccpp.compiler.optimization.level>
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<avrgcccpp.compiler.optimization.PrepareFunctionsForGarbageCollection>True</avrgcccpp.compiler.optimization.PrepareFunctionsForGarbageCollection>
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<avrgcccpp.compiler.optimization.PrepareDataForGarbageCollection>True</avrgcccpp.compiler.optimization.PrepareDataForGarbageCollection>
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<avrgcccpp.compiler.warnings.AllWarnings>True</avrgcccpp.compiler.warnings.AllWarnings>
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<avrgcccpp.compiler.miscellaneous.OtherFlags>-std=c++26 -Wextra -mrelax -fno-exceptions -fno-rtti -fno-threadsafe-statics -gdwarf-4</avrgcccpp.compiler.miscellaneous.OtherFlags>
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<avrgcccpp.linker.optimization.GarbageCollectUnusedSections>True</avrgcccpp.linker.optimization.GarbageCollectUnusedSections>
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<avrgcccpp.linker.miscellaneous.LinkerFlags>-mrelax</avrgcccpp.linker.miscellaneous.LinkerFlags>
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</AvrGccCpp>
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</ToolchainSettings>
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</PropertyGroup>
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<ItemGroup>
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<Compile Include="..\example\main.cpp">
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<SubType>compile</SubType>
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<Link>example\main.cpp</Link>
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</Compile>
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<Compile Include="..\include\ds3231\ds3231.hpp">
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<SubType>compile</SubType>
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<Link>include\ds3231\ds3231.hpp</Link>
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</Compile>
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</ItemGroup>
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<ItemGroup>
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<Folder Include="example" />
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<Folder Include="include" />
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<Folder Include="include\ds3231" />
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</ItemGroup>
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<Import Project="$(AVRSTUDIO_EXE_PATH)\Vs\Compiler.targets" />
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</Project>
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