It was a day with rain and clouds in the mountains. In the evening, when we returned to the bottom of the valley, the clouds broke up and a wonderful rainbow marked the end of that day.
Zugspitz with Rainbow
Rainbow Valley
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Butterfly Collection
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Hiking through the Austrian Alpine regions let me believe that each valley has its own species of butterflies. So I apologize that I don’t know them by name, but I can share pictures:
Wildflower Collection
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Hiking through the Alps means watching beautiful mountains. But the small and tiny wildflowers are even more beautiful. So here is a small from today…
Wildflower
Zugspitz Arena
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Zugspitz Arena (click to enlarge)
The Zugspitze mountain on the left with the Sonnenspitze mountain on the right builds a beautiful natural arena.
Wild Bee
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Wild Bee
Hiking in the Austrian mountains, and with the first sun beams wild bees are around us …
GNU Libs with Debug Information: Rebuilding the GNU ARM Libraries
With my DIY tool chain (see “Constructing a Classroom IDE with Eclipse for ARM“) I get a complete tool chain. I do not need to build that tool chain from the sources for Windows, as all the binaries are nicely pre-compiled and made available. But there is one issue I face from time to time: as the libraries provided by ARM do not come with sources and debug information enabled, I end up with that “No source available for …” message in the debugger:
No Source Available
The solution is to grab the C/C++ library sources from the ARM launchpad site and get it built locally the way I need it.
XFormat, a Lightweight printf() and sprintf() Alternative
Frequent readers of this blog know that I do not like printf (see “Why I don’t like printf()“), because the standard printf() adds a lot of overhead and only causes troubles. But like small kids, engineers somehow get attracted by troubles ;-). Yes, printf() and especially sprintf() are handy for quick and dirty coding. The good news is that I have added a lightweight printf() and sprintf() implementation to my set of components: the XFormat component. And best of all: it supports floating point formatting :-).
XFormat Component
Eclipse Performance Improvement Tip: Close Unused Projects
Eclipse is not the fastest and snappiest IDE of the world, but in my view the most versatile and open one. And as with any tool: using it the wrong way does not make it better. Sometimes I have students in my classes which complain that Eclipse is slow, even on a decent machine. Looking at their notebook screens and Eclipse workspace usually tells me right away what they are doing ‘wrong’: there are many, many projects open in the workspace, the most I have seen was more than 50 projects (yikes!!!)!
Many many projects open
Review of the CAM8100-U USB Camera with the RIoT Android Board
In my earlier post (“Adding the CAM8000-D Camera Module to the RIoT Board“) I was running into the ‘single camera’ trap of the current RIoT Android OS image: with only one camera attached, and switching between front/back camera, Android is stuck and needs to be flashed again to the board. Because this is so painful and can happen easily, I ordered a USB camera for the RIoT board: with this that problem should go away, and I would have a front and a back camera.
CAM8100-U Camera Module with RIoT Board
Link to Files and Folders in Eclipse
Eclipse projects have the nice features that they can link to files and folders: so instead of having the physical file, it is just a pointer to a file. This is very cool as that way I can point to shared files, or keep files in a common place referenced from projects, and so on.
Linked Folder and File in Eclipse
As with most things in Eclipse, there is not a single way how to do things. So I’m showing in this post several ways how to link to files and folders.
MCU on Eclipse 