Archive for November, 2009

MSP430 Microcontrollers for Ultra-low power –

November 29, 2009

MSP430 Microcontrollers for Ultra-low power –

HP spins ARM- and Atom-based thin clients – News – Linux for Devices

November 28, 2009

HP spins ARM- and Atom-based thin clients – News – Linux for Devices.

Korean vendor readies Android MID, clamshell, STB – News – Linux for Devices

November 27, 2009

Korean vendor readies Android MID, clamshell, STB – News – Linux for Devices.

Multi-threaded RISC cores released for Linux, Android – News – Linux for Devices

November 27, 2009

Multi-threaded RISC cores released for Linux, Android – News – Linux for Devices.

8051 Links

November 23, 2009

Welcome to Pinnacle 52, the newest Integrated Development Environment (IDE) for the 8051 series of microcontrollers and compatible derivatives. An MCS-51 IDE for the rest of us!


November 23, 2009


November 17, 2009

The AWS SDK for .NET makes it even easier for Windows developers to build .NET applications that tap into the cost-effective, scalable, and reliable AWS cloud. Using the SDK, developers will be able to build solutions for AWS infrastructure services, including Amazon Simple Storage Service (Amazon S3), Amazon Elastic Compute Cloud (Amazon EC2), and Amazon SimpleDB. With the AWS SDK for .NET, developers get started in minutes with a single, downloadable package complete with Visual Studio project templates, the AWS .NET library, C# code samples, and documentation.

How to Use MMC/SDC

November 15, 2009

The Secure Digital Memory Card (SDC below) is the de facto standard memory card for mobile equipments. The SDC was developped as upper-compatible to Multi Media Card (MMC below) so that the SDC compleant equipments can also use an MMC with a few considerations. There are also reduced size versions, such as RS-MMC, miniSD and microSD, with same function. The MMC/SDC has a microcontroller in it, the flash memory controls (erasing, reading, writing and error controls) are completed inside of the memory card. The data is transferred between the memory card and the host controller as data blocks in unit of 512 bytes, so that it can be seen like a generic hard disk drive from view point of upper level layers. The currentry defined file system for the memory card is FAT12/16 with FDISK patitioning rule. The FAT32 is defined for only high capacity (>= 4G) cards.

This page describes the basic knowledge and miscellaneous things that I become aware, on using MMC/SDC with small embedded system. I believe that this information must be a useful getting started notes for people who is going to begin to enjoy MMC/SDC.


MMCA – Multimedia Card Association
SDA – SD Card Association
SDHC Physical Layer Spec.
About SPI
Generic FAT file system module with sample code to control MMC/SDSC/SDHC

More: SD card initialisation

Can MSP430 create a file on a SD card?

November 13, 2009

I use Embedded Filesystems Library  ( and it works fine for our project.  I also add support for SDHC like describe from the project forum ( and it also works like a charm.

To implement this library, all you have to do is to code the interface for SPI to access your SD.



Top 10 technology skills

November 5, 2009

Top 10 technology skills

4. IT architecture

CIOs are paying less for IT certifications than they did three years ago, but there are a few exceptions to this rule. One of them is IT architecture, which has seen a 10% rise in the value of certifications during the past year, the Foote report says.

Foote says companies are looking to hire enterprise architects as well as system, network, application, data, information and security architects. Among the certifications rising in value are EMC Proven Professional Technology Architect, Security Certified Network Architects, Microsoft Certified Architects, SNIA Certified Architects, and the Open Group’s IT Certified Architect.

6. Project management

The Project Management Professional certification remains in demand, the Foote report says. Even more important is experience managing complex IT projects and delivering results on time and on or under budget.

9. IT optimization

IT experts predict a solid future for IT professionals with experience in IT optimization, including virtualization and cloud computing. However, these jobs may end up in service providers, rather than IT departments.

“Through software as a service, through cloud computing, CIOs may be doing less IT in house, but somebody is still going to be doing that. There will be a demand for more computer scientists in data centers,” says Josh James, Director of Research and Industry Analysis for TechAmerica.

10. Networking

Although pay for networking certifications is down over the last six months, many remain on the list of the IT certifications earning the highest pay premiums, according to the Foote report. These include certifications from Cisco, SNIA, EMC, Brocade and Avaya.

— Network World