During the night we received the first snow for this winter. The sun was breaking through the clouds in the afternoon, and it happened that I was near Brunnen to take of the Wylen chapel with the snow-covered Mythen in the background:
Kapelle Wylen
Readers of my blog know: I’m not a fan of printf(), and I think for many good reasons. Still printf() is widely used, and the GNU gcc tries to optimize things. This is observed with a simple example: If I’m writing
printf("a");
Then the code produced (ARM Cortex-M0+ with GNU ARM Embedded 4.9 2015q2 gives:
movs r0, #97 ; 0x61 bl 0xa98
Instead of calling printf(), it is calling putchar()! Why is that?
PutChar instead of Printf
One day earlier than expected, our tinyK20 boards arrived, and they are looking great :-):
Four tinyK20 Boards
One of the most important aspects for developing complex realtime applications is get insights into what is going on the target. Segger just has released a free tool which gives an incredible useful insight view and visualization:
Segger System View for FreeRTOS
Good news for all the Eclipse and ARM lovers: Atollic have announced this week at ARM TechCon 2015 in Santa Clara that their TrueSTUDIO ‘Lite’ is now free of charge with unlimited code size. 🙂
atollic TrueSTUDIO
Picture taken in the evening with the sun already down behind the Rigi: Like a pot of glowing Lava, and a plane on the sky heading down to it…
Rigi Sunset
Happy Setting 🙂
Golden Path
My daughter has sent me two beautiful pictures I would like to share here. The first one was taken mid of October shows the autumn colors with all the leaves on the ground.
Continue reading
Autumn is showing up at its best, and so far it is really a ‘Golden Autumn’ so far, with temperature above average. The usual ground fog is gone, with beautiful views to the mountains. The pictures below were taken last Saturday:
Mythen
Over the weekend, I finally have repaired the broken ESC (see “Kinetis Drone: Graupner ESC S3055 Failure“). Time to run some first test flights :-).
Kinetis Drone Flying Tests
It happened that my way back home today was passing the same point from this morning (see “Morning Autumn Mirror Lake“), but this time it was right on time for a beautiful sunset:
Red Rigi Sunset
MCU on Eclipse 