Tag Archives: software project

McuOnEclipse Components: 3-Apr-2016 Release

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It has been already two months after the Feb 2016 release, and so much things are going on, so a new release was overdue. Today I have released a new version of the McuOnEclipse components on SourceForge with the following main changes and features:

  • Kinetis SDK v2 with Processor Expert: Now many components can be used even with the Kinetis SDK v2.0 even with the Kinetis SDK not having Processor Expert included.
  • Updated Segger SystemViewer to v2.32a with post-mortem and static buffer support
  • Updated Segger RTT to v5.10u and fixed an issue with interrupts on Cortex-M4
  • FreeRTOS Thread Awareness with OpenOCD

See readme on SourceForge for the full history.

McuOnEclipse 2016-04-03 Release

McuOnEclipse 2016-04-03 Release

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3D Printed Gameboy and Remote Controller with tinyK20 Board

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As a remote controller for the Sumo robot (see “Zumo Robot with Magnetic Encoders“) we have used so far a combination of NXP FRDM-KL25Z board and a Joystick Shield (see “Joystick Shield with nRF24L01 driving a Zumo Robot“). That solution was not ideal, so this weekend I created a 3D printed prototype:

tinyK20 Remote Controller

tinyK20 Remote Controller

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nRF24L01+ 2.4 GHz Wireless Connectivity with the tinyK20 Board

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I’m using the tiny and inexpensive Nordic Semiconductor nRF24L01+ transceiver (see “Tutorial: Nordic Semiconductor nRF24L01+ with the Freescale FRDM-K64F Board“) in many projects: it costs less than $3 and allows me to communicate with a proprietary 2.4GHz protocol in a low power way (see “IoT: FreeRTOS Down to the Micro Amps“). I have that transceiver now running with the tinyK20 board too:

nRF24L01+ Transceiver with tinyK20

nRF24L01+ Transceiver with tinyK20

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Dealing with Code Size in Kinetis SDK v2.x Projects

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I’m exploring the Kinetis SDK v2.0 (see “First NXP Kinetis SDK Release: SDK V2.0 with Online On-Demand Package Builder“). For this, I’m using the ‘standard’ way: blinking the LED on the board 🙂

Blinky on FRDM-K64F Board

Blinky on FRDM-K64F Board

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Merging S19 Files

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If using a bootloader with an application, one thing is to to merge the bootloader with the application into a single file. I do this with the ‘SRecord’ tool like this:

srec_cat bootloader.s19 application.s19 -o merged.s19
Combining S19 Files

Combining S19 Files

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XML Editor & Checker for CMSIS-Pack in Eclipse

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So far, the XML files I had to work on were very simple ones, so a normal text editor was fine. Now I’m tapping into the world of CMSIS-Packs (see “Are ARM CMSIS-Pack the Future of Software Components?“). And definitely this adds a complexity for which I better use some XML editing and checking tools. The ARM tutorial for CMSIS recommends either Notepad++ or Visual C++. But hey, Eclipse should be able to do that maybe even better right? So this is about adding an XML editor and XML checker to Eclipse.

Editing CMSIS-Pack .pdsc File in Eclipse

Editing CMSIS-Pack .pdsc File in Eclipse

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McuOnEclipse Components: 7-Feb-2016 Release

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New in this release:

  • Segger SystemViewer: Upgraded to V2.30, added stack high-water mark
  • Segger RTT: fixed BASEPRI issue on Cortex M4 for critical sections
  • Utility: Fixed issue with Utility module and Kinetis SDK (usage of ‘byte’)
  • USB CDC: property to specify USB device current usage, new status getter functions.
Segger SystemViewer V2.30

Segger SystemViewer V2.30

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Kinetis Lava LED Light Cube

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In “openHAB RGB LED Light Cube with WS2812B and NXP Kinetis” I started experimenting Kinetis boards, a LED cube diffuser and Adafruit WS2812B NeoPixel LEDs. That worked well, but I was not to very happy about the visual effect. So here is my next version: I wanted to have control over each side of the cube. For this I have built a cube inside the cube with a 3D printed structure:

Bare LED Cube

Bare LED Cube

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openHAB RGB LED Light Cube with WS2812B and NXP Kinetis

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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 256 Adafruit WS2812 NeoPixels:

Kinetis RGB Cube with openHAB

Kinetis RGB Cube with openHAB

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McuOnEclipse Release 10-Jan-2016

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With the start of the new year 2016 I have published a new McuOnEclipse component release with the following major updates:

  1. Updated Segger SystemView and Real Time Transfer (RTT): added terminal functions and extra interfaces
  2. Improved USB CDC with serial number handing
  3. FreeRTOS TaskList shell command
  4. USB Stack: added MSD Host support for MCF52259, added support for K24FN120 and for the 100 MHz K20 devices
  5. New NEOMatrix component for Adafruit NeoPixel Matrix displays

    256 NeoPixel Matrix with FRDM-KL25Z

    256 NeoPixel Matrix with FRDM-KL25Z

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