After the first prototype (see “Prototype of Wireless Remote Controller with NXP Kinetis K20“), we have received the boards and populated a first PCB to verify everything is working properly.
INTRO Robot Remote
Gnipen
On Sept. 2nd 1806, after a period with lots of rain, an estimated volume of 40 millions m3 of conglomerate rock slid down from the Gnipen, killing 457 people.
I’m experimenting with different 3D printed LED frames printed with ABS (see “Avoid Warping ABS on Ultimaker 2“). I frame multiple Adadfruit 8×8 NeoPixel WS2812B LED modules with 3D printed diffuser and frames to create color effects:
Diffuser with Frame Effect
A week ago I asked: what you would like to see next on this blog? Thank you all for your reaction and comments! To me, the result is interesting:
Poll Results
Achenkirch is a municipality in the Schwaz district in the Austrian state of Tyrol. Located nearby on a hill is the “Annakirchl”:
Annakirchl in Achenkirch
In “ARM Cortex-M, Interrupts and FreeRTOS: Part 1” I started with the ARM Cortex-M interrupt system. Because the ARM implementation cann be very confusing, I confused myself and had to fix and extend the description in Part 1 :-). Thank for all the feedback and comments!
Originally I wanted to cover FreeRTOS in Part 2. Based on the questions and discussions in Part 1 I thought it might be a good idea to provide visual examples.
NXP KV58F ARM Cortex-M7
When I have hit ‘publish’ for this post, the McuOnEclipse blog exists for exactly 0x888888 seconds. Or almost. I admit there might be a latency of a few seconds. But hey, that’s still a good (hexadecimal) number! :-).
What Next?
I would like to reach out about what you would like to see on McuOnEclipse in a not too distant future:
Add a comment if you have anything else on your mind.
Thank you!
Happy Polling 🙂
The ARM Cortex-M microcontroller are very popular. And it has a very flexible and powerful nested vectored interrupt controller (NVIC) on it. But for many, including myself, the Cortex-M interrupt system can be leading to many bugs and lots of frustration :-(.
ARM Cortex-M7: NXP KV58
Understanding the NVIC and the ARM Cortex-M interrupt system is essential for every embedded application, but even for if using an realtime operating system: if you mess up with interrupts, very bad things will happen….
The Haggenegg is a summit at 1414 m between Schwyz and Alpthal. The summit played an important role during the “Marchenstreit“: a border conflict starting around the year 1100 between Schwyz and the Einsiedeln Abbey.
Sunrise from the Haggenegg
MCU on Eclipse 