F0 bootloader overhaul #97
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This replaces the outdated arm-none-eabi-gdb with gdb-multiarch, which modern distros package instead. This also adds a udev rule and systemd service which will automatically create a vulan0 network device when the adapter is plugged in. Place 99-vulcan.rule in /etc/udev/rules.d and slcand@.service in /etc/systemd/system. The rules for both will then have to be reloaded: `udevadm control --reload` and `systemctl daemon-reload`.
This overhauls the F0 bootloader and associated tooling. The original bootloader's command can IDs were incompatible with CANopen's address assignment and so the instigator for this patch was to reassign them to the reserved unused addresses in CANopen's protocol. While I was there I've fixed a number of other issues too: - Fixed linker scripts and memory layout. - Fixed memory region addressing, using linker defined symbols instead of ints. - Improved compatibility with the protocol that this bootloader is based on, AN3154 - Fixed a number of buffer overflows and off-by-one errors in the protocol - Rearranged the metadata section to not have 1kb of empty space in every image. This speeds up bootloader image write time. - Enabled CRC hardware acceleration. - Added a python based unit test suite - Overhauled the python write script to be used as a library as well - Fixed type issues - Reduced oresat common dependencies
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This adds misc toolchain improvements and a completely overhauled F0 bootloader.