stm32f4xx-hal
hubris
stm32f4xx-hal | hubris | |
---|---|---|
11 | 33 | |
506 | 2,808 | |
2.8% | 3.1% | |
8.4 | 9.6 | |
7 days ago | 3 days ago | |
Rust | Rust | |
BSD Zero Clause License | Mozilla Public License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
stm32f4xx-hal
- Rust newcomers are 70x less likely to create vulnerabilities than C++ newcomers [pdf]
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1.5st project: Rusty Stopwatch
I would personally use the abstractions provided by the stm32f4xx-hal crate more. See https://github.com/stm32-rs/stm32f4xx-hal/tree/master/examples/ for examples.
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[Media] To get familiar with embedded Rust, I wrote a Tetris clone! It's running on an STM32. I repurposed a board I designed for another project
For this project, the audio ended up being the biggest challenge. I spent a few days on-and-off working on it because it would stop working as I modified the PWM frequency. I was eventually able to track it down to a bug in the HAL and opened a PR accordingly: https://github.com/stm32-rs/stm32f4xx-hal/pull/555
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Hey Rustaceans! Got a question? Ask here! (30/2022)!
For my specific issue, I'm using the stm32f4xx-hal library to control a bunch of RGB leds, each with a pwm output. Since I have to get pins and timers where I can find them, each component of the led is made by something like
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STM32F4 Embedded Rust at the HAL: PWM Buzzer
At the time of writing this post, I noticed that if going with option 1 stated earlier that returns a PWMChannel can prove to be quite problematic. In navigating the documentation, the PWMChannel implementations do not include methods that allow to get and set the period of the peripheral. There is an issue that I submitted here for that.
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blink sketch for stm32f411?
Maybe check out this example from the stm324xx-hal repo?
- How to setup CLion for programming AVR microcontrollers?
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can u reccommend a microcontroller for my protorypes needs?
Here is an example for stm32f407 (trivial to change to stm32f411) that gets random numbers from the rng peripheral and displays them on an ssd1306 display: https://github.com/stm32-rs/stm32f4xx-hal/blob/master/examples/rng-display.rs although this uses Rust, which you may or may not like. Arduino will have you covered as well, obviously.
- Huge binary size when using usbd_device SerialPort on stm32
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Learn a new language after C. Rust or C++?
A major benefit of Rust in embedded is how easy it is to use libraries. This example implements USB serial communication on an STM32 in under 80 lines. You add some libs and if it compiles it works.
hubris
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Framework won't be just a laptop company anymore
> The CPUs in Oxide racks are AMD, so, presumably AMD-based compute rather than ARM.
These don’t run Hubris though; based on the chips directory in the repo [0], they’re targeting a mix of NXP and ST parts, which are Arm, and the user isn’t likely to see them or care what firmware they’re running: they’re really pretty “boring”.
[0] : https://github.com/oxidecomputer/hubris/tree/020d014880382d8...
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Who killed the network switch? A Hubris Bug Story
I wouldn't put this comment here. It's not just some detail of this function; it's an invariant of the field that all writers have to respect (maybe this is the only one now but still) and all readers can take advantage of. So I'd add it to the `TaskDesc::regions` docstring. [1]
[1] https://github.com/oxidecomputer/hubris/commit/b44e677fb39cd...
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Oxide: The Cloud Computer
With respect to Hubris, the build badge was, in turns out, pointing to a stale workflow. (That is, the build was succeeding, but the build badge was busted.) This comment has been immortalized in the fix.[0]
With respect to Humility, I am going to resist the temptation of pointing out why one of those directories has a different nomenclature with respect to its delimiter -- and just leave it at this: if you really want to find some filthy code in Humility, you can do much, much better than that!
[0] https://github.com/oxidecomputer/hubris/commit/651a9546b20ce...
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Barracuda Urges Replacing – Not Patching – Its Email Security Gateways
A lot of questions in there! Taking these in order:
1. We aren't making standalone servers: the Oxide compute sled comes in the Oxide rack. So are not (and do not intend to be) a drop in replacement for extant rack mounted servers.
2. We have taken a fundamentally different approach to firmware, with a true root of trust that can attest to the service processor -- which can turn attest to the system software. This prompts a lot of questions (e.g., who attests to the root of trust?), and there is a LOT to say about this; look for us to talk a lot more about this
3. In stark contrast (sadly) to nearly everyone else in the server space, the firmware we are developing is entirely open source. More details on that can be found in Cliff Biffle's 2021 OSFC talk and the Hubris and Humility repos.[0][1][2]
4. Definitely not vaporware! We are in the process of shipping to our first customers; you can follow our progress in our Oxide and Friends podcast.[3]
[0] https://www.osfc.io/2021/talks/on-hubris-and-humility-develo...
[1] https://github.com/oxidecomputer/hubris
[2] https://github.com/oxidecomputer/humility
[3] https://oxide-and-friends.transistor.fm/
- Do you use Rust in your professional career?
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Spotting and Avoiding Heap Fragmentation in Rust Applications
everywhere, for example in https://github.com/oxidecomputer/hubris/search?q=dyn
Is Box really allocating here? Is the "Rust By Example" text incomplete?
Then I had to stop learning Rust for other reasons, but this doubt really hit me at the time.
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What's the coolest thing you've done with Neovim?
I work on an embedded OS in Rust (Hubris) that has a very bespoke build system. As part of the build system, it has to set environmental variables based on (1) the target device and (2) the specific "task"; this is an OS with task-level isolation, so tasks are compiled as individual Rust crates.
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TCG TPM2.0 implementations vulnerable to memory corruption
Oxide Computer told some storied about the difficulty of bring up of a new motherboard, and mentioned a lot of gotcha details and hack solutions for managing their AMD chip.
They talked about their bring up sequence, boot chain verification on their motherboard, and designing / creating / verifying their hardware root of trust.
I heard mention of this on a podcast recently, trying to find the reference.
I'm pretty sure it was [S3]
- "Tales from the Bringup Lab" https://lnns.co/FBf5oLpyHK3
- or "More Tales from the Bringup Lab" https://lnns.co/LQur_ToJX9m
But I found again these interesting things worth sharing on that search. https://oxide.computer/blog/hubris-and-humility, https://github.com/oxidecomputer/hubris
Search 1 [S1], Trammell Hudson ep mentioning firmware (chromebook related iirc) https://lnns.co/pystdPm0QvG.
Search 2 [S2], Security, Cryptography, Whatever podcast episode mentioning Oxide and roots of trust or similar. https://lnns.co/VnyTvdhBiGC
Search links:
[S1]: https://www.listennotes.com/search/?q=oxide+tpm
[S2]: https://www.listennotes.com/search/?q=oxide%20and%20friends%...
[S3]: https://www.listennotes.com/search/?q=oxide%20and%20friends%...
- Well-documented Embedded dev board for video, ethernet, usb, file IO, etc
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OpenAI Used Kenyan Workers on Less Than $2 per Hour to Make ChatGPT Less Toxic
When we started the company, we knew it would be a three year build -- and indeed, our first product is in the final stages of development (i.e. EMC/safety certification). We have been very transparent about our progress along the way[0][1][2][3][4][5][6][7] -- and our software is essentially all open source, so you can follow along there as well.[8][9][10]
If you are asking "does anyone want a rack-scale computer?" the (short) answer is: yes, they do. The on-prem market has been woefully underserved -- and there are plenty of folks who are sick of Dell/HPE/VMware/Cisco, to say nothing of those who are public cloud borne and wondering if they should perhaps own some of their own compute rather than rent it all.
[0] https://oxide-and-friends.transistor.fm/episodes/holistic-bo...
[1] https://oxide-and-friends.transistor.fm/episodes/the-oxide-s...
[2] https://oxide-and-friends.transistor.fm/episodes/bringup-lab...
[3] https://oxide-and-friends.transistor.fm/episodes/more-tales-...
[4] https://oxide-and-friends.transistor.fm/episodes/another-lpc...
[5] https://oxide-and-friends.transistor.fm/episodes/the-pragmat...
[6] https://oxide-and-friends.transistor.fm/episodes/tales-from-...
[7] https://oxide-and-friends.transistor.fm/episodes/the-sidecar...
[8] https://github.com/oxidecomputer/omicron
[9] https://github.com/oxidecomputer/propolis
[10] https://github.com/oxidecomputer/hubris
What are some alternatives?
stm32-rs - Embedded Rust device crates for STM32 microcontrollers
tock - A secure embedded operating system for microcontrollers
meta-raspberrypi - Yocto/OE BSP layer for the Raspberry Pi boards
esp32 - Peripheral access crate for the ESP32
embassy - Modern embedded framework, using Rust and async.
cargo-binutils - Cargo subcommands to invoke the LLVM tools shipped with the Rust toolchain
esp32-hal - A hardware abstraction layer for the esp32 written in Rust.
bare-metal-stopwatch-rust - Bare-metal interrupt-driven stopwatch on STM32F439ZI, written in Rust
l4v - seL4 specification and proofs
Arduino - Arduino IDE 1.x
ferros - A Rust-based userland which also adds compile-time assurances to seL4 development.