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Workshops tackle Qt, Linux, and i.MX development
By Eric Brown

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Future Electronics and Nokia will host six full-day, hands-on workshops across the North America on using Linux and Nokia's Qt development framework to develop user interfaces (UIs) for Freescale's ARM-based i.MX system-on-chips (SoCs). Starting in Boston on May 18, the workshops will use the Freescale i.MX23 SoC as its sample platform.

The workshop series, entitled "Developing Sophisticated User Interfaces for Freescale i.MX-based Applications," will provide "an accelerated day of learning about the most modern interface options on embedded multimedia devices," says technology distributor Future Electronics.

The company is collaborating with Nokia's Qt Development Frameworks division, as well as with Integrated Computer Solutions (ICS), a Qt-certified training and consulting partner.

The workshops each cost $150, and will be held at the following dates and cities:

  • May 18 -- Boston, Mass.
  • May 25 -- Orange County, Calif.
  • May 27 -- San Jose, Calif.
  • June 15 -- Dallas, Tex.
  • June 17 -- Minneapolis, Minn.
  • July 15 -- Toronto, Ont.
Freescale's ARM9-based i.MX23 SoCs will be used to help illustrate course concepts, says Future Electronics. However, the workshops should be useful with working with any of the i.MX family of SoCs, says the company. (See further below for more on the i.MX23.)

Attendees will receive hands-on experience with embedded development boards based on the i.MX23, building and debugging an application with an advanced user interface (UI). Attendees will receive a preconfigured, bootable, SDHC flash memory card as well as a virtual machine (VM) with a cross-development Linux environment.

Because Qt is cross-compatible between multiple platforms, including Mac, Windows, and Linux, the seminar may also be useful to those working with other operating systems, says Future Electronics. (See farther below for more on Qt.)

The workshops are said to cover the following topics:

  • Overview of Freescale i.MX processors
  • Introduction to Qt, including Qt programming
  • Setting up a VM for Qt and Qt Embedded
  • Qt Embedded Extensions, including:
    • Qt Window Manager and QDecorations
    • Input device and display hardware
    • Qt styles for embedded
    • Platform-specific issues
    • Optimization
    • QVFB emulator
  • Debugging, both on device, and remotely, using GDB Server
  • Setting up an effective cross compilation development environment
  • Lab Exercises:
    • Hello embedded Qt
    • Media player and embedded HMI application
Each student will be provided with an i.MX23-based development board for use during the workshop, or students can bring their own. Attendees must bring a laptop and cables, including a straight-through serial cable, says Future Electronics. The laptop must have a serial port or an external USB-to-serial converter, says the company.

About Qt and i.MX23

Offered by Nokia's Qt division, the Qt cross-platform application and UI framework has long supported embedded Linux development. The latest Qt 4.6 version released in December adds multi-touch and gesture support, as well as support for Nokia's Symbian, and Maemo platforms.

Qt 4.6 provides enhancements including new animation and state-machine frameworks, an updated Qt Creator IDE, and new OpenGL and WebKit engines. Qt is also built into the new Linux-based MeeGo mobile operating system, which is merging components from Moblin and Maemo.

Like Freescale's i.MX21, i.MX27, and more recent i.MX25 processors, the i.MX233 is based on the widely used ARM926EJ-S core, clocked in this case at 454MHz. What's new is the SoC's variety of mixed-signal analog technology, including analog audio, A/D channels, and integrated power management.


A block diagram of Freescale's i.MX233
(Click to enlarge)

The mixed-signal technology is said to provide for such features as a stereo headphone amplifier, 1.5 Watts of power for a mono speaker, and an S/PDIF digital output. In addition, the i.MX233 is said to incorporate an image processing unit supporting 24-bit VGA displays. The i.MX233 is targeted at e-readers, portable media players (PMPs), and other mobile consumer electronics applications requiring graphical user displays.

Further information

The cost of the day-long workshops, entitled "Developing Sophisticated User Interfaces for Freescale i.MX-based Applications," is $149 per student, says Future Electronics. This is said to cover all course materials, including VM, videos, lab, and presentation files. The price also includes a continental breakfast, lunch, and afternoon refreshments. Registration and more information may be found here.


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