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Adafruit NeoPixel Clock with 60 LEDs
After the problems with level shifters (see “First Adafruit NeoPixel Blinks with the FRDM Board“) I received the ordered 74HCT245N. Put it on a bread board, wired it up, … only to find out that the...
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LED Clock with Kitchen Hot Pan Protector
When I showed my 60 NeoPixel LED clock prototype to my daughter and her girlfriend, and they both wanted to have one right away :-). Well, that clock was just a proof of concept, with lots of temporary...
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BBQ Smoker Monitoring Robot
I have to admit: I’m not a vegetarian. I love BBQ, and no offense to vegetarians! Today is perfect day for another BBQ session, and this time I plan to enhance it with electronics. No, not eating...
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FreeRTOS Continuous Trace Streaming
Key to successfully implementing embedded applications these days is to have detailed visibility into what is going on with the application on the board. For this, I’m using the FreeRTOS+Trace from...
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Unboxing the Freescale FRDM-KL43Z Board
I’m preparing for the next semester at the university starting in September this year. As part of that, I’m currently evaluating the FRDM-KL43Z board: FRDM-KL25Z, the most popular Freedom Board? The...
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Tutorial: Adafruit WS2812B NeoPixels with the Freescale FRDM-K64F Board –...
This is Part 1 of a Mini Series. Manya has challenged herself to use the Adafruit NeoPixels (WS2812B RBG LEDs) with the Freescale FRDM-K64F board and the Kinetis SDK (see “Let’s play with Freescale...
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Translating for the world …
English is not my first language, but I use it in this blog because that way I can reach a broader audience. If I would use Swiss German, only a few would be able to understand what I write about: …...
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Programming Kinetis with CodeWarrior from the DOS Shell
In “CodeWarrior Flash Programming from a DOS Shell” I showed how to program a device from the DOS shell. Because that example was for ColdFire and CodeWarrior for MCU10.2, here is the same for a...
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Using FRDM-K64F Board to debug another Kinetis Board
Given all the posts I already have published on a similar topic, this one will be a short one: how to use the Freescale FRDM-K64F board with OpenSDAv2 to debug another board: Identify J11 on the board:...
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Zumo Robots at Maker Faire in Rome (16. – 18. Oct. 2015)
I won’t be able to attend the Maker Faire in Rome (16. – 18. Oct. 2015). But five of the Sumo bots students from the previous semesters have built and programmed will be there. The two robots on the...
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Controlling NXP Freedom Board RGB LED with openHAB and Raspberry Pi
In “Blinky LED with openHAB on Raspberry Pi” I have used openHAB on a Raspberry Pi to control an LED attached to the Pi, and in “xx” I have explored how to connect a NXP Freedom Board over USB CDC …...
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First NXP Kinetis SDK Release: SDK V2.0 with Online On-Demand Package Builder
There are plenty of different software packages available for microcontroller these days from all the silicon vendors. Finding a good software package is one challenge, getting what I really need is...
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openHAB RGB LED Light Cube with WS2812B and NXP Kinetis
From my earlier work to use the NXP Kinetis with openHAB (see “Controlling NXP Freedom Board RGB LED with openHAB and Raspberry Pi“) it was only a small step to control a 20x20x20 cm light cube with...
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Tutorial: Bare-Metal Shell for Kinetis
I have been asked to provide a command line shell example for a bare-metal (no RTOS) application, so here we go! Having a way to communicate to the firmware on a board is essential for most of my...
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FatFS with Adafruit MicroSD Breakout Board and NXP FRDM-KL25Z
Breakout boards are great: they allow me to explore functions quickly, without to build my custom board: all what I need is some wires and ideally a bread board. Here is how I wire the Adafruit Micro...
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Bricking and Recovering OpenSDA Boards in Windows 8 and 10
Getting a board from a distributor like Farnell/Element14/Mouser (add your own distributor) means that chances are high that the default firmware on it is written years from now because the inventory...
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DIY USB HID Joystick Device and Game Controller
For many projects it would be cool to build a custom USB Joystick device, either as custom game controller for Windows or any USB host which can be used with a USB Joystick. Instead buying one, why not...
View ArticleBlack Magic Open Source Debug Probe for ARM with Eclipse and GDB
The ‘Black Magic Probe’ (or in short: BMP) is a very small and open source JTAG/SWD debug probe with a build-in GDB Server. I saw that probe referenced in different places, so I thought I try it out...
View ArticleOpenOCD with MCU-Link
The NXP MCU-Link is a powerful $10 debug probe for ARM Cortex-M devices and works with the NXP LinkServer for debugging. The LinkServer does not an implement a gdb server, so it limits its usage e.g....
View ArticleRecovering Cortex-M Microcontroller with a Power Glitch
If a Cortex microcontroller is unresponsive to a debug connection for various reasons, then this trick might help to recover that device for you. All you need is a debug probe from PEMICRO and a...
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