McuOnEclipse Release 10-Jan-2016

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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Blaze: Miniature, Powerful, Hackable Display with Touch

I’m not much monitoring what is happening on Kickstarter or Indiegogo, only for time reasons, but maybe I should? For a while I’m looking for the next level for the tinyK20 project: better and more powerful microcontroller with touch display/graphic LCD. And when I see a Freescale/NXP Kinetis microcontroller on a crowd funding platform like this one, I hardly can resist 😉 :

Blaze Board (Source: http://kck.st/1S0HyUp)

Blaze Board (Source: http://kck.st/1S0HyUp)

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First 3D Printed tinyK20 Board Enclosure

The tinyK20 boards are now used in several projects. Initially I was considering a commercial USB thumb drive enclosure for it. But this needed some tweaking of the enclosure so at the end it was not ideal. 3D printing is probably that hot topic for 2016. So why 3D printing an enclosure for that board?

tinyK20 3D Printed Enclosure

3D Printed Enclosure for the tinyK20 board

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How to Add Bluetooth Low Energy (BLE) Connection to ARM Cortex-M

In many of my embedded projects I’m using successfully the Nordic Semiconductor nRF24L01+ (see “Tutorial: Nordic Semiconductor nRF24L01+ with the Freescale FRDM-K64F Board“) and the HC-06 Bluetooth transceivers (see “Getting Bluetooth Working with JY-MCU BT_BOARD V1.06“) for wireless communication. However, the nRF24L01+ is using a proprietary protocol, and the HC-06 does not work with Apple products (it does very well with Android devices). To close that gap I decided to add Bluetooth Low Energy (BLE, or Bluetooth 4.x). So this post is about how to add Bluetooth Low Energy (BLE) to NXP (formerly Freescale) Kinetis devices:

BLE Enabled Kinetis

BLE Enabled Kinetis

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Renaming Eclipse CDT Projects

When I create a project in Eclipse (e.g. in Kinetis Design Studio with the GNU ARM Eclipse plugins), I have to specify the name of the project during creation time:

Project Name in Eclipse

Project Name in Eclipse

But what if I change my mind later on and want to use a different name? How to rename the project?

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USB CDC with the Raspberry Pi

For my home automation project with openHAB I want to attach Freescale (now NXP) FRDM (Freedom) boards so they can take care about the realtime aspects and to act as gateways to my other systems. One way is to use USB CDC (Serial over USB) as communication channel. USB has the advantage that it powers the board, plus I can attach multiple devices: up to four on the Raspberry Pi 2 and even more with using a USB hub. In a standard configuration with a USB WiFi and a USB HID (mouse plus keyboard) dongle I still can attach two Freescale (ahem, NXP) Freedom boards to the Raspberry Pi:

FRDM-K22F and FRDM-K64F attached to Raspberry Pi 2

FRDM-K22F and FRDM-K64F attached to Raspberry Pi 2

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Board Take-Over: Using Segger J-Link to Debug NXP

So NXP has announced that they want to take over Freescale (see this press release). In an earlier post I experimented how Freescale tools could be used in NXP tools, see “Merging NXP LPCXpresso IDE with Freescale Kinetis Design Studio, Processor Expert and Kinetis SDK“. Just for fun, I want to do the acquisition the other way round: Using Freescale (now NXP) software and tools to build and debug the LPC824 from NXP :-).

Debugging the NXP LPC824 with Freescale J-Link Lite

Debugging the NXP LPC824 with Freescale based J-Link Lite

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