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>
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>
Same driver surface as the yazoalfa version — clock and alarm get/set,
alarm interrupts, flag check/clear — plus oscillator-stop detection and
die temperature. One source for tiny85 (software I2C) and mega328P (TWI),
built against libavr in both generated and reflect mode, byte-identical
.text across modes. Errors surface as std::expected instead of being
dropped; weekday-rate alarms now really set the DY bit (legacy cleared
it); multi-register access is one coherent bus transaction. Legacy stays
on master.
Co-Authored-By: Claude <noreply@anthropic.com>
