A quick story from our CEO (@regalis_pl ) 👇 I have been working on a new library/framework for programming embedded systems with modern C (-std >= c 23). I have started this project as an experiment with the RP2040 from {@Raspberry_Pi, @RaspberryPi_org} as a main CPU. The goal was simple - create hi-level, memory-safe zero-cost abstractions using modern C . I added an additional restriction for myself - do not use absolutely any external dependency. This requirement automatically means that everything comes down to real bare-metal programming. I ended up managing to implement literally everything myself without including any external header. Everything = linker scripts, memory maps and even a bootloader with a dedicated tool to embed a required checksum into the final UF2 file. Things that are up and running as for today: * booting from the external flash memory using hand-written bootloader (stage #2), * running the system at 125MHz: -> configuring a crystal oscillator (XOSC), -> configuring PLLs, -> configuring all system clocks (clk_gpout{0..3}, clk_ref, clk_sys, clk_peri, clk_usb, clk_adc, clk_rtc), * configuring a watchdog timer, * configuring timers, * sending/receiving data with UART, * configuring GPIOs, * configuring PWMs. #cpp #cpp23 #embedded #raspberrypi #security #rp2040 #stm32 #baremetal More interesting things below 👇

In 2023, we spent $3,934,099 on AWS other hosting. In 2026, our hosting support bill is down to ~$1m/year due to the cloud exit. Even including all the hardware buying, we will already have saved ~$4m by the end of this year. And going forward, it's ~$3m/yr in savings 🤑

If you are interested in low-level security of Linux, especially in the context of Yocto, @crosscon_eu, cache attacks, cold boot attacks, and OpenBMC, feel free to tune in.

It seems that Hyprland is already a globally recognized wonder.😎 A fully deserved victory for @vaxryy 🇵🇱 and the @hyprwm community. 🫡

UEFI Secure Boot is not the only chain of trust technology in our repertoire, but we also like to explore ARM Cortex-A and occasionally with Cortex-M capabilities. Different tools but essentially the same concepts make your computing more trustworthy.

One of the elements necessary to create a zero-dependency framework is to prepare the build system and configure the linker. 👉 left side - Meson (cross compilation file); 👉 right - linker script for the #RP2040 📡 See our other posts for more context. #embedded #rp2040

If you care for free society, don't let anyone take away your freedom with fear, and please vote NO to "Chat Control" - to all #MEP in #Europe

Let's make learning Arm assembly more interactive 🧑‍🍳

[Higher level abstractions - PWM] Another example of using our C 23 embedded programming framework. This time PWM, some implementation details and the example of use from the end user perspective. Full bare metal, C 23, zero dependencies 👨‍🏭 #RP2040 #cpp #baremetal #embedded

Here is a real life demo of one of our projects (modern embedded framework). It is all C 23, bare metal, zero dependencies. Free as in freedom 💪 💚 Follow us for more info! 👨‍🏭👨‍🔧 #cpp #baremetal #RP2040 #RP2350 #firmware

[Low level internals - PWM] Bare metal, C 23, zero dependencies - using PWM on #RP2040; the low level part. #baremetal #cpp #RP2040 #raspberry_pico

We are working on a C bare metal library/framework. Zero dependencies, clean and self-descriptive API. #cpp #baremetal #firmware #rp2040 #rp2350 Check this thread for more info: x.com/regalis_tech/status/18…