freertos

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Meet Freescale Kinetis KL03, the Smallest Ever ARM MCU

Meet Freescale Kinetis KL03, the Smallest Ever ARM MCU

Last year at Embedded World 2013, Freescale announced Kinetis KL02, an ARM Cortex M0+ MCU measuring just 1.9 x 2.0mm. Customer must have complained that it’s not small enough, as the company has just unveiled Kinetis KL03 MCU, 15% smaller or 1.6 x 2.0 mm, at Embedded World 2014. Just like its predecessor KL03 targets space-constraint IoT applications such as ingestible healthcare sensing, portable consumer devices, remote sensing nodes, and wearable devices.   Kinetis KL03 MCU features include: 48 MHz ARM Cortex-M0+ core, 1.71-3.6V operation Bit manipulation engine for faster, more code-efficient handling of peripheral registers 8 to 32 KB flash memory, 2 KB RAM, 8K ROM with on-chip boot loader High-speed 12-bit ADC Internal voltage reference for high ADC accuracy High-speed analog comparator Up to 22 GPIOs with pin interrupt support Low-power UART, SPI, I2C (high speed) Low power wake up Secure real time clock Timers for a broad range of […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on 2013 Embedded Market Study – Software Development & Processors

2013 Embedded Market Study – Software Development & Processors

UBM releases a study of the embedded market every year, by surveying over 1,000 embedded professional every year. They’ve just published their 2013 Embedded Market Study (85 pages report), after surveying over 2,000 engineers and managers, so let’s see whether anything has evolved in the software development and processor space compared to 2012. Again this year, most respondents are based in the US (62%), followed by Europe (20%), and Asia (12%). C/C++ languages still rule the embedded world with 81% market share, although a little less than last year (85%), assembler is a distant third (5%). Interestingly, the average size of development teams seems to have shrunk from 15.9 in 2012 to 14.6 in 2013, the average project being composed of 4 software engineers, 2.9 hardware engineers, 2.7 firmware engineers, 2 QA/Test engineers, 1.5 system integrators, and 1.5 with other functions. About a third of project last less than 6 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 4 Comments on 2012 Embedded Market Study – Software Development & Processors

2012 Embedded Market Study – Software Development & Processors

I’ve just come across an Embedded System Study by UBM published in April 2012. The company surveyed over 1,700 professionals working on embedded systems who are mainly based in the US (56%),  but also in Europe (21%) and Asia (12%). The report is 87 long, but I found some of the slides are particularly interesting in regards to programming languages, operating systems and software life cycle, as well as processor/micro-controller choices. Unsurprisingly C (65%), C++ (20%) and assembler (5%) are still the main languages used for embedded software development. In this report, we also learn that the average team is composed of 14.5 members including 5.6 software engineers, 5.6 hardware engineers and 3.3 firmware engineers. 2012 was the first year they included QA Engineers and system integrators both with 2.6 members on average working on projects lasting from less than 6 months to over 25 months. UBM survey also provides a […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Brew Your Own Beer with Freescale Kinetis Cortex M4 MCU

Brew Your Own Beer with Freescale Kinetis Cortex M4 MCU

This brewing system is part of top three designs for Freescale Make It Challenge: Kinetis MCUs. The two other designs are an Automobile Collision Detector  and a “Swiss Army Knife” for the Blind . This design utilizes Freescale’s Kinetis K60 Tower System with MK64M512 Cortex M4 MCU and FreeRTOS operating system. This could become a beer brewing appliance with the target market being home brewers and small brewpubs and restaurants. Matthew Pratt (the one who design this system) says current hone brewing systems sell for about 10,000 USD. The sweet wort production process can be labor-intensive, requiring precise control of temperatures and transition times (It takes 4 to 5 hours for 5 gallons of beer). The Kinetis Beer Brewing System automates the process from the initial filling of water to the beer being ready to be cooled and yeast added. The user only needs to add the ingredients, malt and […]