Ashin Walpola
0e9525162d
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but that tree was gitignored, so a clone of this repository could not build the firmware it ships. It is now committed here as ordinary files in its own folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP bridge's signature verification (--trust) used on the bench. Nothing is fetched from or pushed to the colleague's repository; this repository and its remotes carry everything. The folder's own .gitignore keeps build output, downloaded components and private key material out, as it did there; the committed file set is identical to that repository's tracked files. The ESP32-C5 is still flashed from obu-firmware/, which only takes vanetza-idf from microbu-esp32c5/, so the two stay separate folders. FLASHING.md says how to take a newer version of the colleague's tree (copy it over the folder, rebuild, test, commit).
1.4 KiB
Title: Building for generic ARM64 device
Building Vanetza for generic ARM64 device
This document describes building Vanetza for arm64 architecture. Steps for building Vanetza for arm64 are very similar to build for Cohda MK5 devices (you can see steps in the building for Cohda MK5 document).
Cross-compiler
You should have GNU C/C++ cross-compiler for the arm64 architecture installed. For Debian-based distros, this can be installed by command sudo apt install g++-aarch64-linux-gnu.
Vanetza build dependencies
Please see this document about cross-compiling Vanetza's dependencies.
Compile Vanetza
We assume you have copy of the Vanetza repository in your home directory at $HOME.
Create a build directory and tell CMake to use the cross-compiler installed on your machine and to look up additional dependencies in vanetza-deps:
:::shell
mkdir vanetza/vanetza-build
cd vanetza/vanetza-build
cmake .. \
-DCMAKE_TOOLCHAIN_FILE=../cmake/Toolchain-ARM64.cmake \
-DCMAKE_FIND_ROOT_PATH=$HOME/vanetza-deps \
-DCMAKE_INSTALL_RPATH=\$ORIGIN/../lib \
-DCMAKE_INSTALL_PREFIX=$HOME/vanetza-dist \
-DBUILD_SOCKTAP=ON
make
This builds the Vanetza libraries and socktap example as well. When you do make install, binaries are copied to $HOME/vanetza-dist. You can copy the binary with libraries to the device now.