Jon Titus reviews Silicon Labs ToolStick Starter Kit and Robert Oshana's DSP Software Development Techniques for Embedded and Real-Time Systems.
For all the new component demos I see each year, particularly those with applications for consumer electronics, I often wonder whether the latest whiz-bang feature that a particular component is intended to deliver for the end-product is really satisfying some sort of demand. In other words, does the end-user have an appetite for that revolutionary new feature?
In the world of portable consumer-electronic devices, manufacturers are faced with a challenging prospect — creating physically smaller devices that have enhanced performance while maintaining or extending operating battery life. These requirements have rippled throughout the entire electronics industry, forcing battery and Integrated Circuit (IC) manufacturers to constantly push the boundaries of technology.
Managing power is a critical requirement for all electronic equipment from notebooks to PDAs to storage peripherals. Power management ICs can optimize power usage to match the constantly changing demands of whatever task the device is carrying out. There are several important criteria to consider when selecting the best IC for an application.
Small logic analyzers put many digital channels, trigger options and I/O capabilities in an instrument that engineers can consider as their own. These small analyzers connect through a USB port to a host PC that controls functions and displays, and saves information.
Although serial ports may seem like antiques, for many years ahead, equipment will continue to rely on serial communications via RS-485, I2C, SPI, SATA and 10-Gigabit Ethernet links, for example. But testing and troubleshooting communications on these and other serial buses can get ugly. No one wants to sit in front of a scope to try to make sense of endless streams of 1s and 0s.
We asked industry leaders what key technologies will enhance thermal management in military/aerospace equipment in the next three years?
If you’re like most people living in the “digital home,” you have a plethora of those bulky, brick-like power adapters — wall warts as they’re commonly known — connected to a wall and one of perhaps a dozen or more electronic devices, each with its own unique DC power requirement. Whether to power a laptop, cell phone, computer and peripherals, games or power tools...
People measure temperature more than any other physical characteristic. As a result, semiconductor vendors offer a large variety of silicon-based temperature sensors that usually operate in a range from -40°C to 125°C, although vendors sometimes tailor sensor spans for specific applications. Sensors used in PCs and servers, for example, may measure in a narrower range — about 75°C to 110°C. Depending on your application and budget, you can purchase inexpensive sensors with an accuracy of ±1°C to ±2°C.
Lithium-ion batteries have taken the portable-electronics world by storm. Tony Armstrong, the power-products marketing manager at Linear Technology Corp. recently told me he bought his son a radio-controlled all-terrain vehicle. About half of the RC models and transmitters he examined came with lithium-ion or lithium-polymer batteries. Just two years ago, Armstrong found almost all models relied on nickel-cadmium or nickel-metal-hydride batteries.
The field of video surveillance has seen explosive growth in the last 3 years. The convergence of heightened security demand and innovative technology, in the acquisition, transport, analysis and storage of quality video has resulted in a massive deployment of cameras and systems in a number of venues. Major cities, transportation centers, highways, military installations, retail and business centers are all covered by the un-blinking gaze of millions of cameras. According to some reports, the UK alone has over 15 million security cameras.
According to Adobe Systems, over 300 million mobile devices have graphical user interfaces (GUIs) based on Adobe Flash technology – a number that may exceed a billion by 2010. Developers of in-car navigation and infotainment systems are also beginning to embrace Flash, for a simple reason: it can reduce the time to build a GUI by up to 50%. In the past, software teams had to translate their GUI prototypes into C, C++, or Java code, a labor-intensive process that can take many months. Now, teams can prototype their GUIs with high-level Flash tools and run those GUIs directly on embedded Flash players, without having to write graphics code.
What do you perceive as the biggest hurdle for adoption on MEMS by engineers?(a) Lack of familiarity with MEMS-design tools; (b) Need for customization of MEMS devices;(c) Lack of design tools for electronic application of MEMS; (d) Few simulation models forMEMS devices; (e) Little understanding of MEMS capabilities and characteristics
Because of its inherent benefits including decreases to development times and increases in component compatibility, COTS (commercial-off-the-shelf) has been adopted by a vast number of industries, including the aerospace, military and space exploration markets. Most embedded systems within aerospace and military applications perform a function in some way related to mission-critical operation of the larger system and/or platform, making performance, reliability and functionality imperative to the design and manufacture of the embedded computing system. These systems must therefore operate flawlessly in very specific and defined ways while exposed to extreme environments, including high shock and vibration resistance, wide, dynamic temperature ranges, high humidity (or immersion), and the absolute vacuum of deep space.
In today’s world, wireless networks are becoming more ubiquitous, and they are implemented using a variety of protocols that are specifically designed for radio frequency systems. Some protocols that are in use are proprietary to individual vendors, while others are industry standards. Recently, a lot of attention has been given to 802.15.4 and ZigBee, but there is still some ambiguity as to what is different about 802.15.4 and ZigBee and what kind of networks or systems would benefit from these particular protocols.