[I do know about the general garbage collection issue, that I’m not worried about; solved for robotics, see case studies at Julia Computing.]
Any hardware/OS combination a problem or has been proven to work, and I mostly have this one in mind (seems this CPU/RAM/flash/eMMC capacity is sufficient and Julia would at least work on it with Linux):
In addition to several fixed-function interfaces […] exposes 6 processor GPIOs, 28 FPGA GPIOs, and 5 FGPA analog sense inputs (ADC). […]
Intel®Atom™ x7-Z8750 Processor 4 cores/4 threads 2.56GHz burst 2M Cache 64-bit
The HSUART can be accessed through Linux sysfs at node /dev/ttyS1.
seems also to include “Altera® MAX®10 FPGA” (see schematic on page 6). I know Julia doesn’t “support” FPGAs, while not ruling out interfacing to it (or compiling to it in the future; feel free to include info on FPGAs with Julia in any context). It seems this hardware is ideal, with all of it suppored, and I suppose no flags such as this one needed:
julia --cpu-target <target> Limit usage of cpu features up to <target>
I also expect all peripherals to work (assuming using Linux) or outside of the scope of Julia, but not Julia with C/C++ libraries/drivers, e.g.: “Intel® RealSense™”.
Do you know if most use just regular Linux, or Linux with a real-time patch (or other RTOS) for drones? I assume Julia would handle Linux with, just as w/o the patch. I.e. Linux API/ABI unchanged.
There’s also e.g. this hardware (with memory/2MB flash assumed too low?) and anyone tried running on this OS or other RTOS:
runs PX4 on the NuttX OS […]
Main FMU Processor: STM32F765
32 Bit Arm® Cortex®-M7, 216MHz, 2MB memory, 512KB RAM
IO Processor: STM32F100
32 Bit Arm® Cortex®-M3, 24MHz, 8KB SRAM
API and library for PX4 Autopilot using MAVLink written in C++11
[I expect all (relevant) C++/C libraries to work with Julia. I recall CxxWrap supports C++14 and higher; i.e. here you would just need to compile C++11 code with a C++14 (or higher) setting.]
In your view would using Julia (and its libraries for e.g. vision and robotics), or Julia+C++ be an improvement over just using what most use (C++). It seems the same argument applies just as for robotics (I’m not sure have many of the Julia libraries in that space apply here).
[Android is getting popular as an embedded OS. Maybe not on the drones themselves, so I don’t care too much for now. I still like to see Android supported…]
FYI: I looked up and found no relevant hits on this Discourse, only on unrelated “drone.io” (here) and there: