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Our garden has a large area planted with lavender, and this pays off every summer: the color! the scent and flavour! And best of all: many, many bees and butterflies!
Butterfly and Lavender
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Programmable Ultrasonic Sensor Shield for FRDM Board
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“Note to myself: post articles about what students have done this semester…”
Students have turned in their semester project work. I have set for myself a goal to briefly describe to the ‘outside’ world what they did, as an inspirational source :-). So here is a first article about the project completed by Christoph Bühlmann who developed a shield for the FRDM-KL25Z board: a programmable ultrasonic shield:
Ultrasonic Shield with Freescale FRDM-KL25Z (Source: Christoph Bühlmann)
Switching between ‘tabs’ and ‘no-tabs’ UI in Processor Expert
Newer releases of Processor Expert (e.g. in Kinetis Design Studio (KDS)) come with a ‘graphical’ (or ‘tabbed’) view of the Component Inspector. The UI elements are different and ‘tabs’ are using:
Component Inspector in Tabbed View
I like much more the earlier ‘no-tabs’ view. Luckily, there is a setting to switch the view back.
Updated Freedom Board Logic Analyzer with DMA
Question: How to build a low-cost logic open source logic analyzer for less than $15?
Answer: combine the Freedom KL25Z board with OLS!
500 Hz signal with 50% duty cycle in LogicSniffer
Tutorial: DIY Kinetis SDK Project with Eclipse – Startup
This is the start of a multi-post tutorial about the Freescale Kinetis SDK, released back in April as beta version. The SDK a set of peripheral drivers, and will become the standard software foundation and drivers provided by Freescale for their ARM Cortex based devices. Similar what other vendors already do. While this is a good step, it is the same time very disruptive for my university projects with new Freescale Cortex-M devices. And with everything new (and beta), it needs time to learn. So this post is about creating a Do-It-Yourself Kinetis SDK project from scratch for Eclipse. This part is about the startup code: about everything to get the application started.
FRDM-K64F with SD, nRF24L01+ and HC-06 Bluetooth
FRDM-K64F at Maximum Speed of 120 MHz
The ARM Cortex-M4F on the Freescale FRDM-K64F board can run up to 120 MHz. Here is how to get it running with maximum speed:
FRDM-K64F Board
Panoramas: Klausen – Pragel
Pictures (click to enlarge) from another motor bike tour last week-end. Starting above Schwyz:
Rigi Range
EmbSys Registers View with CMSIS-SVD dimElementGroup
As outlined in “How to Add Register Details View in Eclipse“, I have a nice register detail level viewer for Eclipse and GDB. But one problem showed up: there were entries showing with %s:
PCR Register with %s
The reason is that the parser is not handling the dimElementGroup of CMSIS-SVD.
Evening Clouds
Clouds are fascinating… A thunderstorm front rolled over us after a hot summer day. After that front, the sky opened up with a blue window, painting a light blue combined with red colors from the sun set. Fascinating…
Blue Cloud Window
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Swiss Mountain Seven-Pass-Tour: Brünig – Grimsel – Furka – Gotthard – Nufenen – Grimsel – Susten
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After the Swiss Mountain Three-Pass-Tour: Susten – Grimsel – Furka, this long weekend was perfect for an extended mountain pass ride: Brünig – Grimsel – Furka – Gotthard – Nufenen – Grimsel – Susten. Starting from the Lucerne side, the Grimsel was … Continue reading
MCU on Eclipse 