Systems Design

EDN Staff

A 50,000-foot view of system technological advancements, design tips and news that will give designers solid technical advice and information for robust system-level designs. This site also covers the latest board-level embedded hardware, development tools, and related software.

Multiprocessing gets an ARM up

ARM’s new cluster architecture will create optimum heterogeneous processor groupings on a chip. Read More...

Are robots a threat to engineers?

As engineers create ever more sophisticated robots, are they in danger of being replaced themselves? Read More...

One wire controls LCD module

This one-wire LCD interface DI generates all the signals required to control the ubiquitous character display. Read More...

Calibrate voltage drops and interrupts before testing

Follow these techniques for calibrating a signal generator used to create drops and dips in power-supply voltage for testing automotive (or any other) electronics. Doing so automates measurements and reduces errors. Read More...

10-bit oscilloscopes fill gap between lower and higher models

The RTB2000 series from Rohde & Schwarz covers 70 MHz to 300 MHz with a 10-in. capacitive touchscreen display. Read More...

High-speed signals jump over PCB traces

A class of interconnects bypasses the losses that occur in PCB traces, improving signal integrity. Read More...

Optimizing compilers for ADAS applications

Compilers are essential for cost-efficient ADAS design, but need to be better adapted to the code structures and specific safety requirements typical of ADAS. Read More...

Keysight adds 50/70/100 MHz oscilloscopes for educators, small labs

The InfiniiVision 1000 X-Series brings higher-end features within budgets of educators, small labs, and even individuals. Read More...

Rescued analog oscilloscope works fine, still has value

When an LG OS-5020 analog oscilloscope was saved from destruction and came my way, I just had to try it out. Read More...

Small spectrum analyzer uses both samples and sweeps

The MS2760A from Anritsu uses a combination of traditional and real-time techniques to produce bandwidths to 110 GHz. Read More...

Rohde & Schwarz introduces 6 GHz oscilloscope at DesignCon 2017

The RTO2064 moves the company's RTO2000 a step higher in bandwidth, into medium-speed serial applications and EMI troubleshooting. Read More...

DesignCon 2017: PAM4 measurements are solidifying, but remain in flux

Coming out of the annual "Case of the closed eye" panel was the conclusion that we have more to understand to get reliable 56 Gbps and higher speeds. Standards, while needed, are not the complete answer. Read More...

LTC Design Note: Uncompromised clocking solution for 16bit 2.5Gsps DAC

System performance & phase noise depend on clock as much as DAC quality. Read More...

VoIP phone teardown

This 2011 VoIP office phone shows some thoughtful acoustic and mechanical design. Read More...

December 1, 1995: EDN launches this site

EDN launched ednmag.com in December 1995. Eighteen years later, edn.com stood alone. Here's how it came about and what it looked like along the way. Read More...

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One wire controls LCD module

This one-wire LCD interface DI generates all the signals required to control the ubiquitous character display. Read More...

Line receiver provides self test

Use a quad differential comparator to provide adequate self-test for systems using line receivers for differential input signals. Read More...

AVR takes under 1µs to process quadrature encoder

A good example of tight interrupt coding to interface to a quadrature encoder. Read More...

Isolated USB-to-UART converter builds in 20 minutes for $20

This Design Idea describes a simple project that embedded developers will love for keeping their computers safe from rogue USB devices. Read More...

Software PLL syncs to line using moving-average filter

A software PLL with a jitter attenuator lends itself to AC-line filtering and many other applications. Read More...

Circuit gates pulse train without truncating

This Design Idea accomplishes asynchronous gating without the worry of shortened pulses. Read More...

3 pins, 3 LEDs, 3 buttons

This LED multiplexing scheme allows for switches in the matrix too. Read More...

Facilitate oscilloscope debug of small microcontroller systems

A probe-to-the-metal approach is often the best way to debug a small µC system, and here’s some code to help out. Read More...

LabVIEW real-time seismic alert system

National Instrument’s LabVIEW has uses beyond instrument control, as demonstrated by this Web app. Read More...

Zener level-shifter drives high-side switch

Simplify a high-side driver by replacing a transistor with a Zener diode. Read More...

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10-bit oscilloscopes fill gap between lower and higher models

The RTB2000 series from Rohde & Schwarz covers 70 MHz to 300 MHz with a 10-in. capacitive touchscreen display. Read More...

Power-saving MCUs boost memory

STMicroelectronics’ STM32L496 and STM32L4A6 team an ARM 32-bit Cortex-M4F core with large memory, extra peripherals, and low-power operation. Read More...

MCUs pack lots of memory, peripherals

Microchip’s PIC18F K42 series offers the largest memory of any 8-bit PIC MCU, along with an extensive array of core-independent peripherals. Read More...

Keysight adds 50/70/100 MHz oscilloscopes for educators, small labs

The InfiniiVision 1000 X-Series brings higher-end features within budgets of educators, small labs, and even individuals. Read More...

64-layer flash IC enables 1-Tbyte chips

Toshiba has added a 512-Gbit, 64-layer flash memory device that employs triple-level cell technology to its BiCS Flash product line. Read More...

Bluetooth 5 SoC maximizes battery life

A multiprotocol, Bluetooth 5-certified radio Soc, On Semiconductor’s RSL10 requires just 62.5 nW in deep sleep mode and 7 mW in receive mode. Read More...

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VoIP phone teardown

This 2011 VoIP office phone shows some thoughtful acoustic and mechanical design. Read More...

Myo armband: Wearables design focuses on packaging

Thalmic Labs’ Myo gesture-control armband combines electromyography with IMUs and exposes difficulty of implementing a true wearable. Read More...

Teardown: Behind the ESC collector's badge

The flashy networked attendee badge appearing at this year's ESC Boston gets a close look by EDN editor Rich Quinnell. Read More...

Teardown Preview: Inside the Apple iPhone 5

Until we can lay our hands on a real iPhone 5 and do a real teardown, let's take a look at what others are saying and render an opinion on the reliability of their comments. Read More...

Teardown: High-voltage Li-ion battery stack management - the drive for safe power

At the heart of the Chevrolet Volt, a sophisticated Li-ion battery stack management system ensures the safety and reliability of a multi-cell Li-ion battery stack capable of delivering power on demand to the Chevy Volt drive system. Read More...

Teardown: The power inverter - from sunlight to power grid

This teardown of a solar inverter card traces the path of harvested DC power from the photovoltaic panel, through boost conversion, power inverter and massive filtering of the created AC power signal required by the power grid. Surrounded by monitoring and microcontroller magic along with safety standard adherence, we uncover the mysteries of solar energy harvesting electronics. Read More...

Teardown: iPhone 5s

Go inside the iPhone 5s to see the tech, the parts, what's better, and what's the same, as iFixit tears it down. Read More...

Teardown: Analog rules over digital in noise-canceling headphones

Dig deeper into these headphones that deliver decent audio at relatively low cost and better yet, effective active noise reduction. Read More...

A closer look at LSI’s MegaRAID SAS 9260CV-4i controller

The MegaRAID controller's innovative use of CacheVault technology solves the problem of system reliability during power outages with a greener solution that uses existing power instead of batteries. Read More...

Integration amassed: analyzing a NAS

This hands-on project showcases the second generation of Western Digital's My Book World Edition NAS (network-attached storage) device, so named because it is potentially accessible by a user from anywhere in the world. Read More...

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Industrial IoT to gain traction in 2017

Long predicted but slow to arise, the Industrial Internet of Things may finally be poised to gain momentum in 2017. Read More...

Make SoCs flexible with embedded FPGA

Embedding an FPGA array can add vital flexibility to SoC designs. Read More...

Distributed measurements unlock the future of design

Distributed physical measurements are the key to working with new materials and state-of-the-art mechanical design. Read More...

Providing USB Type-C connectivity – What you need to know

The reversible cable of USB Type-C needs smart interfaces, but the right chips are available. Read More...

Engineering the future of space exploration

The days of disposal launchers may be approaching an end as a new group of entrepreneurial space companies seek to apply Silicon Valley innovation and scaling to human exploration of the solar system. Read More...

Look Inside Fiber Optic Sensing

Improvements in fiber optic sensing technology can help engineers solve complex system sensing problems. Read More...

Loop tuning controls transient response in point of load power modules

To restore responsiveness when adding load capacitance to POL power modules, re-tune the control loop. Read More...

Partial and Pretended Networking Reduces CAN Power Consumption

Saving power by turning off subsystems is a challenge for CAN networks, until you redefine the network a little. Read More...

Data choices help compress 8051 code

The limited memory resources of 8-bit architectures like the popular 8051 are often seen as preventing programming them in C, but the right choices in the type and location of data can shrink C code to better fit. Read More...

Validate USB host designs with a bare metal driver

When implementing a USB hub you'll need to validate the design. Creating a bare metal driver for handling a Flash drive can help. Read More...

Xenon death flash for the Raspberry Pi 2

A problem with the power supply chip on the Raspberry Pi 2 serves as a good reminder to choose parts for your board carefully. Read More...

Memory testing: A quick look

RAM isn't always 100% reliable. Here are some basics about test methods to start you thinking. Read More...

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Multiprocessing gets an ARM up

ARM’s new cluster architecture will create optimum heterogeneous processor groupings on a chip. Read More...

Are robots a threat to engineers?

As engineers create ever more sophisticated robots, are they in danger of being replaced themselves? Read More...

High-speed signals jump over PCB traces

A class of interconnects bypasses the losses that occur in PCB traces, improving signal integrity. Read More...

Rescued analog oscilloscope works fine, still has value

When an LG OS-5020 analog oscilloscope was saved from destruction and came my way, I just had to try it out. Read More...

DesignCon 2017: PAM4 measurements are solidifying, but remain in flux

Coming out of the annual "Case of the closed eye" panel was the conclusion that we have more to understand to get reliable 56 Gbps and higher speeds. Standards, while needed, are not the complete answer. Read More...

December 1, 1995: EDN launches this site

EDN launched ednmag.com in December 1995. Eighteen years later, edn.com stood alone. Here's how it came about and what it looked like along the way. Read More...

Open source reaches processor core

We've got open source software and board designs, and now an open source microcontroller chip. Read More...

Use LT SPICE to analyze input filters

From a SPICE analysis, you can design filters that reduce EMI. Read More...

Electronic products from hell

There are plenty of instances where reputable companies have produced awful products. Read More...

The mythical software engineer

Is software engineering really a thing? Read More...

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