egboard
rp-hal
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egboard
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I built a column staggered keyboard with firmware written in Rust!
I'm quite happy with the result and have been daily driving the board for almost two months. The typing experience is greatly improved as the placing of the keys is based around my hand shape. Additional information including the hardware files and the pre-built firmware are available on GitHub. Thank you all for joining me on this adventure and to all the crate maintainers for allowing people like me to build things we never thought we could.
rp-hal
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Embedded Swift on the Raspberry Pi Pico
probably, I didn't really check it, but I found [1]. Rust has a lot of support for embedded systems, even from the companies that provide the chips, like STM and Espressif.
[1] https://github.com/rp-rs/rp-hal
- Rp-hal: a Rust Embedded-HAL for the pi pico series microcontrollers
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I built a column staggered keyboard with firmware written in Rust!
About the same time, I was learning Rust and discovered how it could be used on embedded targets from Low Level Learning on YouTube, the video introduced me to the amazing rp-hal crate that provides abstractions to talk to the Raspberry Pi Pico microcontroller. Getting used to the no_std mode took some time, the most challenging was not being able to collect an iterator to a container.
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How can I access the Pico W's LED with the rp-hal crate?
Well, just as I posted this, I came across the issue on Github: https://github.com/rp-rs/rp-hal/issues/525
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&[u8] to *const u8
Have a read of https://github.com/rp-rs/rp-hal/issues/257 for more info.
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Question: Elegant way of getting a 'static reference?
I've made an example for a RPI Pico (PR for the RP2040 HAL project here) .
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Pico as a usb hid without circuitpy
Here's an example: https://github.com/rp-rs/rp-hal/blob/main/boards/rp-pico/examples/pico_usb_twitchy_mouse.rs
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Learning Embedded rust
Embedded rust for the raspberry pi pico: https://github.com/rp-rs/rp-hal
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The Rise of Rust, the ‘Viral’ Secure Programming Language That’s Taking Over Tech
What are you on about, can you clarify? Rust can compile in no-std/embedded style just as fine (or better) than C can for basically any ARM or RISCV based processor, and quick googling shows this hal for nearly all pi needs and even MEGA65 is "as supported" (read: not at all officially by anything, fan-only) as any current C compiler. Setting up rust for a new target, so long as the code-gen is supported somehow by LLVM, LLVM plugin, LLVM IR transpiler (and maybe libgcc-jit sort of soon) is just as painful or unpainful as setting up a whole team to work via C/C++ with comparable testing harnesses. This doesn't mean easy and is an area Rust is still improving rapidly by the various enterprise agencies (Ferrous systems, Oxide, more I can't remember...) who specifically want to bring rust to such low end hardware because frankly both C and C++ suck with vendor proprietary tool chains and quirks.
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"pub use bare_metal::CriticalSection;" Error
He says he can't find crate for 'bare_metal'. He was setting up and testing the HAL for the pico (https://github.com/rp-rs/rp-hal). While compiling it pulls down critical-section-0.2.7/src/lib.rs and bars on line 7
What are some alternatives?
defmt - Efficient, deferred formatting for logging on embedded systems
tutorials - 📚 Stash of tutorials completed for learning cool stuff.
usbd-human-interface-device - Batteries included rust USB HID library for usb-device
embassy - Modern embedded framework, using Rust and async.
qmk_firmware - Open-source keyboard firmware for Atmel AVR and Arm USB families
rlox
edn - Extensible Data Notation
rp2040-project-template - A basic rp2040-hal project with blinky and rtt logging example code. With this you can quickly get started on a new rp2040 project
avr-hal - embedded-hal abstractions for AVR microcontrollers
teaching-material
tz - Time zone database and code
crates.io - The Rust package registry