ide: the attiny85 beside the atmega328p, one directory each
The presets cover both parts, so the solution should too. Studio carries avrdevice as a project property, so a part is a project rather than a configuration, and both build example/main.cpp to a .text byte-identical to their CMake counterpart: 1242 B on the mega, 1212 B on the tiny, each with the architecture its own object file says. They need separate directories, not just separate names. Studio builds into <project dir>/<Configuration> whatever OutputDirectory claims — setting it per project creates the directory and then ignores it — so two projects in one directory share example/main.o. Verified rather than assumed: with both in ide/, the single shared object read avr:25 while the mega's ELF read avr:5, so a build of one after the other without a rebuild links the wrong part's object. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
BlackMark
6
.gitignore
vendored
6
.gitignore
vendored
@@ -2,8 +2,8 @@ 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/*/*.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
@@ -27,11 +27,17 @@ 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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builds `example/main.cpp` for both parts the presets cover, each to a
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**byte-identical `.text`** against the CMake build — 1242 B on the ATmega328P,
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1212 B on the ATtiny85 — with the flags mirrored by hand. CMake remains the
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build system.
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`avrdevice` is a project-level property in Studio, so a part means a project, not
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a configuration: `ide/atmega328p/` and `ide/attiny85/`. They need separate
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directories rather than separate names — Studio builds into `<project
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dir>/<Configuration>` whatever `OutputDirectory` says, so two projects sharing
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one directory would also share one `example/main.o`, and building one after the
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other without a rebuild would link the other part's object.
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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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@@ -45,15 +51,20 @@ 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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for mcu in atmega328p attiny85; do
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case $mcu in atmega328p) device=ATmega328P;; attiny85) device=ATtiny85;; esac
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python ../libavr/tools/atmelstudio/componentinfo.py \
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ide/ds3231.componentinfo.xml --device ATmega328P
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"ide/$mcu/ds3231-$mcu.componentinfo.xml" --device "$device"
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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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--project "ds3231-$mcu" \
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--compile-commands "build/$mcu-generated/compile_commands.json" \
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--log "build/as-$mcu.log"
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done
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```
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Release is what the gate compares, the presets defining no debug build; Debug
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carries the `-Og -gdwarf-4` pair libavr's own debug preset uses.
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One reference describes one part, hence `--project`. Release is what the gate
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compares, the presets defining no debug build; Debug carries the `-Og
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-gdwarf-4` pair libavr's own debug preset uses.
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Differences from legacy: weekday-rate alarms now actually set the DY bit
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(the old `setAlarmHelper` always cleared it), reads/writes are single
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@@ -12,8 +12,8 @@
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<OutputFileName>$(MSBuildProjectName)</OutputFileName>
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<OutputFileExtension>.elf</OutputFileExtension>
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<OutputDirectory>$(MSBuildProjectDirectory)\$(Configuration)</OutputDirectory>
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<AssemblyName>ds3231</AssemblyName>
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<Name>ds3231</Name>
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<AssemblyName>ds3231-atmega328p</AssemblyName>
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<Name>ds3231-atmega328p</Name>
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<RootNamespace>ds3231</RootNamespace>
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<ToolchainFlavour>avr-g++-16.1.0</ToolchainFlavour>
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<KeepTimersRunning>true</KeepTimersRunning>
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@@ -45,8 +45,8 @@
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</avrgcccpp.compiler.symbols.DefSymbols>
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<avrgcccpp.compiler.directories.IncludePaths>
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<ListValues>
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<Value>$(MSBuildProjectDirectory)\..\include</Value>
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<Value>$(MSBuildProjectDirectory)\..\..\libavr\include</Value>
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<Value>$(MSBuildProjectDirectory)\..\..\include</Value>
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<Value>$(MSBuildProjectDirectory)\..\..\..\libavr\include</Value>
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</ListValues>
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</avrgcccpp.compiler.directories.IncludePaths>
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<avrgcccpp.compiler.optimization.level>Optimize for size (-Os)</avrgcccpp.compiler.optimization.level>
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@@ -75,8 +75,8 @@
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</avrgcccpp.compiler.symbols.DefSymbols>
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<avrgcccpp.compiler.directories.IncludePaths>
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<ListValues>
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<Value>$(MSBuildProjectDirectory)\..\include</Value>
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<Value>$(MSBuildProjectDirectory)\..\..\libavr\include</Value>
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<Value>$(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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@@ -90,11 +90,11 @@
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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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<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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<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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108
ide/attiny85/ds3231-attiny85.cppproj
Normal file
108
ide/attiny85/ds3231-attiny85.cppproj
Normal file
@@ -0,0 +1,108 @@
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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>1d84c0f7-52b9-4a63-b7e1-9f2c48d5a306</ProjectGuid>
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<avrdevice>ATtiny85</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>$(MSBuildProjectDirectory)\$(Configuration)</OutputDirectory>
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<AssemblyName>ds3231-attiny85</AssemblyName>
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<Name>ds3231-attiny85</Name>
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<RootNamespace>ds3231</RootNamespace>
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<ToolchainFlavour>avr-g++-16.1.0</ToolchainFlavour>
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<KeepTimersRunning>true</KeepTimersRunning>
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<OverrideVtor>false</OverrideVtor>
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<CacheFlash>true</CacheFlash>
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<ProgFlashFromRam>true</ProgFlashFromRam>
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<RamSnippetAddress>0x20000000</RamSnippetAddress>
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<UncachedRange />
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<preserveEEPROM>true</preserveEEPROM>
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<OverrideVtorValue>exception_table</OverrideVtorValue>
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<BootSegment>2</BootSegment>
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<ResetRule>0</ResetRule>
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<eraseonlaunchrule>0</eraseonlaunchrule>
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<EraseKey />
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
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<ToolchainSettings>
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<AvrGccCpp>
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<avrgcc.common.Device>-mmcu=attiny85</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=" '$(Configuration)' == 'Debug' ">
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<ToolchainSettings>
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<AvrGccCpp>
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<avrgcc.common.Device>-mmcu=attiny85</avrgcc.common.Device>
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<avrgcc.common.outputfiles.hex>True</avrgcc.common.outputfiles.hex>
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<avrgcc.common.outputfiles.lss>True</avrgcc.common.outputfiles.lss>
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<avrgcc.common.outputfiles.eep>True</avrgcc.common.outputfiles.eep>
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<avrgcc.common.outputfiles.srec>True</avrgcc.common.outputfiles.srec>
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<avrgcc.common.outputfiles.usersignatures>False</avrgcc.common.outputfiles.usersignatures>
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<avrgcccpp.compiler.symbols.DefSymbols>
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<ListValues>
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<Value>DEBUG</Value>
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</ListValues>
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</avrgcccpp.compiler.symbols.DefSymbols>
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<avrgcccpp.compiler.directories.IncludePaths>
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<ListValues>
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<Value>$(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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@@ -3,7 +3,9 @@ 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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Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "ds3231-atmega328p", "atmega328p\ds3231-atmega328p.cppproj", "{7B3E5A41-9C26-4D18-8F52-6A0D31C74BE9}"
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EndProject
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Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "ds3231-attiny85", "attiny85\ds3231-attiny85.cppproj", "{1D84C0F7-52B9-4A63-B7E1-9F2C48D5A306}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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@@ -15,6 +17,10 @@ Global
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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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{1D84C0F7-52B9-4A63-B7E1-9F2C48D5A306}.Debug|AVR.ActiveCfg = Debug|AVR
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{1D84C0F7-52B9-4A63-B7E1-9F2C48D5A306}.Debug|AVR.Build.0 = Debug|AVR
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{1D84C0F7-52B9-4A63-B7E1-9F2C48D5A306}.Release|AVR.ActiveCfg = Release|AVR
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{1D84C0F7-52B9-4A63-B7E1-9F2C48D5A306}.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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Reference in New Issue
Block a user