Winterbloom_Castor_and_Pollux
zephyr
Winterbloom_Castor_and_Pollux | zephyr | |
---|---|---|
16 | 57 | |
515 | 9,635 | |
0.2% | 2.4% | |
7.3 | 10.0 | |
2 months ago | 4 days ago | |
C | C | |
GNU General Public License v3.0 or later | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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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.
Winterbloom_Castor_and_Pollux
- What should I do if I want to run timers on microseconds instead of the default milliseconds?
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Winterbloom introduces Micronova: a tiny but mighty Eurorack power supply
I'm glad you enjoyed it! We're serious about open source and that means we gotta be serious about documentation. If you want a really fun one, check out https://gemini.wntr.dev ;)
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Everything You Never Wanted To Know About Linker Script
Related - check out "The Most Thoroughly Commented Linker Script" made by our own /u/theacodes: https://github.com/wntrblm/Castor_and_Pollux/blob/main/firmware/scripts/samd21g18a.ld
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Linker script
The Most Thoroughly Commented Linker Script in the World
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How do you build your source code?
We use ninja - a very small and fast build system. Ninja generally needs something to generate its build files (CMake, Meson, etc.), but we just use a little Python script to generate ours.
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Matriarch, modular, and Felt Instruments
Winterbloom also has something similar with their interactive user guide for Castor & Pollux (their latest Eurorack-format synth module). It's geared towards beginners and explains a lot of things that are useful even if you don't ever plan to get that module or any modular gear at all.
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Small/unknown Eurorack makers?
Plus the modules are really cool and unique. Sol and BHB are both programmable with CircuitPython. All the hardware and firmware are open source for all the modules. Thea is also suuuuuper good about documentation too; check out this interactive user guide for Castor & Pollux!
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Duophonic jam with Castor & Pollux, a juno-inspired dual osc
C&P is the latest, and most complex yet, by my favorite indie module maker, Winterbloom. I pre-ordered as soon as it was available to do so and they finally started shipping recently. The manual is pretty sweet and really interactive and educational too. RMR did a really good video demoing the wide range of sounds this can produce; highly recommend checking it out.
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Anyone help Compile and Program MCU for Castor and Pollux for trade of PCBs
Hey there, I wrote some build instructions in the contributing guide on GitHub: https://github.com/wntrblm/Castor_and_Pollux/blob/main/CONTRIBUTING.md#building-the-firmware
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Here's a Juno style DCO I just made
This is great! I love a good minimal implementation. If anyone is looking for a complete Juno-style DCO, you might be interested in Castor & Pollux- the module that I wrote that Juno article for. It's also completely open-source, and you can find the schematics and source code here.
zephyr
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Ask HN: Anyone Waiting on BT Auracast?
Hey folks. Anyone out there waiting for BT Auracast? It was announced June 2022, and immediately struck me as must have.
I lost my earbuds, but it seems ridiculous to get a replacement without Auracast, seems like surely if I'm going to make a decent sized purchase like that it needs to support group playing. I want to tune into the radios of other people on the metro or on the bus, want to be able to watch a movie on the plane with someone.
Auracast was announced in June 2022. Anyone else out there struggling with expectations here? I'm really hoping the product announcement season that's right around the corner had a good number of Auracast announcements.
Side note, a ton of it is over my head but it's been so so fun tuning in every once and again to see how Zephyr's Bluetooth Audio work is going. Just wild now much has gone into this! https://github.com/zephyrproject-rtos/zephyr/commits/main/subsys/bluetooth/audio
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VisionFive 2 ROM addresses for Zephyr RTOS
I am working on adding support for VisionFive 2 in Zephyr RTOS. I have created a device tree by referencing the starfive linux, patches of hifive_unmatched FU740 SoC and patches of BeagleV Starlight.
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Adding support for visionfive2 in zephyr rtos
We are unsure on how to proceed further with this error. We have opened a github discussion regarding the same issue.
- Zephyr (small footprint realtime OS) supported boards
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Learning to write device drivers using C/C++ in Zephyr OS
Then there are samples. Look through it for anything useful. RC522 uses SPI, so getting that to work would be a good first step.
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Building with cmake can't find cross-compile objcopy
Hey, I've been trying to build an app with cmake+ninja instead of west to integrate it into a larger build system and everything works correctly except for the final stage where it uses `/usr/bin/llvm-objcopy` instead of the `${CROSS_COMPILE}` one it tries to find here.
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Arduino Joins Zephyr Project
Zephyr has a lot of good points, but I really wish it didn't use Kconfig. Getting a working config seems to be mostly a matter of copying an already working example. It might be okay for hardware side of things, but it's a really bad at software/feature dependency.
Set https://docs.zephyrproject.org/latest/build/kconfig/tips.htm... and the issue: https://github.com/zephyrproject-rtos/zephyr/issues/52575. And don't even get me started on trying anything to group options together.
- Zephyr 3.4 is out!
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PlatformIO and Zephyr is a bad idea
In this thread u/ikravets explained that there hasn't been much demand for Zephyr, which is why they aren't doing anything with it, and in this pull request Zephyr decided to no longer recommend PlatformIO in their documentation.
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Zephyr RTOS RAM Tracing
The answer is always in the source: https://github.com/zephyrproject-rtos/zephyr/blob/bdaac354f4cb0ad91d952c2f6941c16240d84da2/subsys/tracing/tracing_backend_ram.c
What are some alternatives?
NanoVNA - Very Tiny Palmtop Vector Network Analyzer
FreeRTOS-Kernel - FreeRTOS kernel files only, submoduled into https://github.com/FreeRTOS/FreeRTOS and various other repos.
MidiDCO
mbed-os - Arm Mbed OS is a platform operating system designed for the internet of things
protoncrkbd - Proton-C compatible crkbd PCB
RIOT - RIOT - The friendly OS for IoT
LITOS - LITOS - an easy-to-use tool for optogenetic cell stimulation
nuttx - Apache NuttX is a mature, real-time embedded operating system (RTOS)
idevicerestore - Restore/upgrade firmware of iOS devices
wasm-micro-runtime - WebAssembly Micro Runtime (WAMR)
edk2 - EDK II
mongoose-os - Mongoose OS - an IoT Firmware Development Framework. Supported microcontrollers: ESP32, ESP8266, CC3220, CC3200, STM32F4, STM32L4, STM32F7. Amazon AWS IoT, Microsoft Azure, Google IoT Core integrated. Code in C or JavaScript.