McuOnEclipse Components: 31-July-2016 Release

Time for a new major update of the McuOnEclipse components, with the fillowing main features and changes:

  • FatFS component updated to R0.12 with patch 3 and exFAT support
  • Extended support for Cortex-M7
  • Extended support for Kinetis SDK V2.0
  • USB component support for Kinetis SDK V1.3
  • Improved FreeRTOS for NXP FreeRTOS TAD plugin
  • Added C++ wrappers to multiple components
  • Many smaller fixes and improvements

    SourceForge

    SourceForge

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Hexiwear: Teardown of the Hackable ‘Do-Anything’ Device

Smartwatches are around for a while now. To me it is still questionable how useful the ‘big’ ones for iOS and Android are. But there are definitely the crowd funded smartwatch projects which caught my attention. Maybe it is about the ‘do-anything’ with connectivity?  One of these gadgets is Hexiwear: a hackable open source device

Hexiwear Device

Hexiwear Device

While it *could* be a kind of smartwatch, the value of this thing is more that it includes a plethora of sensors with two microcontroller, and I can use Eclipse with GNU tools to build my firmware :-).

Alert: Hackster.io is giving away 100 Hexiwears, but you need to hurry up (submission until July 15th 2016)!

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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.

Adadfruit MicroSD Card Breakout Board

Adadfruit MicroSD Card Breakout Board

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McuOnEclipse Components: 25-June-2016 Release

SourceForge

SourceForge

A new release is available on SourceForge, with the following main changes:

  • Support for FreeRTOS and Cortex-M7
  • Segger SystemView updated to V2.38
  • Components for NXP Kinetis SDK V1.3
  • Fixed bug in Wait component (register handling for GCC and ARM)
  • FatFS supports FreeRTOS V9.0.0 with static memory allocation
  • FreeRTOS shell and task list with static memory allocation
  • Floating point conversion routines in Utility
  • FreeRTOS component shows NVIC mask bits

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Tutorial: Making Music with Floppy Disk Drives

3.5″ Diskette Drives are not widely used any more: CDs, DVDs, memory/thumb drives and downloads from the web are the usual distribution method these days for software. Back a few years ago, software was distributed on one or many 3.5″ diskettes, and even before that time on 5 1/4″ floppy disk drives. So what to do with all these not-used-anymore hardware? Play music with it 🙂

Floppy Music

Floppy Music

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McuOnEclipse Components: 29-May-2016 Release

Major changes in this new release:

  • FreeRTOS V9.0.0 with static memory allocation.
  • Shell with single character I/O function.
  • FatFS File System with extra shell commands for memory dump and file creation.
  • Segger SystemViewer library updated to V2.36a
Segger SystemViewer V2.36a

Segger SystemViewer V2.36a

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FreeRTOS V9.0.0 with Static Memory Allocation

I’m using FreeRTOS in most of my applications. There were only a few exceptions where an RTOS has to be used in safety critical systems: there usually it is not permitted to use any dynamic memory allocation because this adds the risk that a memory allocation could fail at runtime because of memory fragmentation or memory leak. And FreeRTOS uses a dynamic memory (heap) for the task stacks and the RTOS resources including semaphore, mutex and queues.

This is now a thing of the past. This week a new FreeRTOS Version 9 was released which does not need any dynamic memory allocation anymore: it is possible now to build completely statically allocated systems with FreeRTOS :-).

Dynamic and Static Memory Allocation in FreeRTOS V9.0.0

Dynamic and Static Memory Allocation in FreeRTOS V9.0.0

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Tutorial: Blinky with NXP Kinetis SDK V2.0 and Processor Expert

In “Mother of Components: Processor Expert with NXP Kinetis SDK V2.0 Projects” I presented an approach how to use Processor Expert components with the NXP Kinetis SDK. This article is a tutorial how to create a blinking LED project with that approach, using McuOnEclipse Processor Expert components and the Kinetis SDK V2.0. As board the FRDM-K22F is used:

Blinky on a FRDM-K22F with SDK V2.0 and Processor Expert

Blinky on a FRDM-K22F with SDK V2.0 and Processor Expert

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NXP FTF Hands-On with FreeRTOS Task Aware Debugger

I mentioned the hands-on sessions on FreeRTOS I do this week at NXP FTF Tech Forum in Austin in my previous post. What we are using in the session is an Eclipse plugin in Kinetis Design Studio showing all kinds of FreeRTOS information:

NXP FreeRTOS Plugin in Kinetis Design Studio

NXP FreeRTOS Plugin in Kinetis Design Studio

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Mother of Components: Processor Expert with NXP Kinetis SDK V2.0 Projects

Unfortunately, now the NXP Kinetis SDK V2.0 does not include Processor Expert support (see “First NXP Kinetis SDK Release: SDK V2.0 with Online On-Demand Package Builder“). But at the Lucerne University we are using more than 150 different custom Processor Expert components we would like to use with that new SDK. So how to make them working with the Kinetis SDK V2.0? Using a Processor Expert as “the mother of all components”:

NXP Kinetis SDK V2.0 and Processor Expert Side-by-Side under Eclipse

NXP Kinetis SDK V2.0 and Processor Expert Side-by-Side under Eclipse

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