rust-raspberrypi-OS-tutorials VS circle

I am very interested in this tutorial for building an OS for the Raspberry Pi in Rust: https://github.com/rust-embedded/rust-raspberrypi-OS-tutoria...

I'd love to try it out when (if ever) I have the time.

I like rust, low level and embedded hacking so I programmed a simple "kernel", based on this: https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials

So every week, I basically followed along these tutorials. I didn't even made an effort to fully understand the code I was copying, as I just didn't want to waste mental energy on it as I wanted that energy and time wasted on my focus at the time (C++ and JS). I did that for like a year, doing 1-3 tutorials/week from that site. Over the course of it, I got to build web apps, several compilers, several games mostly board games/3d shooters/2d multiplayer games, raytracers, peer to peer apps, building a networking stack, bots, blockchain apps, servers, PGP encryption, E2E encryption apps such as for messaging, built a NES emulator, virtual machines, simulators and graphics programming, etc. I'd say the longest one was learning to build a tiny OS on raspberry pi

Hello everyone, I'm not sure if this is possible, but I'll give it a shot. I have a raspberry PI zero and a linux host pc. I am trying to run stuff on the raspberry on bare metal, no OS below it (using this tutorial https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials/). Now in the tutorial 4 there is a step "flash the kernel onto SD card and insert the SD card into the raspberry". Now, given my lack of SD card adapter (I'm also curious) I wanted to ask if it is possible to deliver this kernel onto the raspberry without the SD card using USB.

I believe it already exists: https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials

Is this just an alternative UI for GitHub but without the files? Am I missing something obvious? I'm confused.

Actual github repo for anyone looking for the files: https://github.com/rust-embedded/rust-raspberrypi-OS-tutoria...

If you're a developer and feeling adventurous, you can also try building it yourself. The source is all on GitHub. It uses the circle-stdlib project (which is circle plus some additions to support much of the C and C++ standard libraries) as a submodule; hopefully I've set that up correctly, but you could always clone that separately and place it in the MiniScript-Pi folder. Check out circle's build instructions for info on setting up your toolchain. (Mac users: be careful with the configure script, which does not work properly on MacOS; find me on Discord and I'll help you fix the script or configure manually.)

I suggest checking out circle https://github.com/rsta2/circle since it's basically a library for the pi hardware. I'm doing some experiments with it myself now.

You can also run a Pi without an operating system, programming it in C or C++ probably. See for example: GitHub - rsta2/circle: A C++ bare metal environment for Raspberry Pi with USB (32 and 64 bit)

BMC64 is VICE in a trenchcoat unikernel / bare-metal framework called Circle: https://github.com/rsta2/circle

It uses the circle library (https://github.com/rsta2/circle) to provide a minimal runtime (mainly to interface with the hardware).

I experimented with circle the other day (https://github.com/rsta2/circle) Looks promising, and most likely within your knowledge of C/C++ development.

Natively would be amazing but a vast amount of work.

The way Apple moved classic MacOS from 680x0 to PowerPC was to write a tiny kernel emulator, with an API to run native stuff on the metal, and run more or less the whole OS under emulation, profile it and just translate the most speed-critical bits.

That's a lot of work for a FOSS project but given the performance delta between 1980s 680x0 and 2020s ARM, total emulation of the whole thing should be perfectly fine. It's how the PiStorm Amiga upgrade works.

https://amigastore.eu/853-pistorm.html

So all I envision is something like Aranym:

https://aranym.github.io/

... running on top of Ultibo, say:

https://ultibo.org/

Or maybe Circle:

https://github.com/rsta2/circle

Circle is a C++ bare metal programming environment for the Raspberry Pi.

The only other reasonable option would be to port it to a new platform which is popular that has a few well documented hardware interfaces so as not to create a hellish nightmare writing drivers. Maybe then you could do a one-off port to that platform (though you might have to re-target the HolyC compiler to target it instead if it is not x86_64). The Raspberry PI seems like a decent option here since there is already a baremetal C++ library supporting USB, keyboard, mouse, sound, video, and as an added bonus UART, I2C, SPI, GPIO. You would have good code examples for porting all the necessary drivers. But obviously this would still be a lot of work and the compiler would need to be re-targeted and user space adapted for running on ARM. That being said backwards compatibility is strong, ARM seems actually interested in keeping it that way (at least for now). The library I'm talking about is here: https://github.com/rsta2/circle