New 40-nm Microcontrollers for Motor Control

Renesas Electronics Corp. recently announced the RH850/C1x series of 32-bit microcontrollers (MCUs), which it said are designed for motor control in hybrid electric vehicles (HEVs) and electric vehicles (EVs). Based on Renesas’s 40-nm process, the RH850/C1x series features the RH850/C1H and RH850/C1M MCUs, which enable embedded designers to enhance efficiency, reduce system costs, and achieve higher safety levels for HEV/EV motor control systems.

Source: Renesas Electronics Corp.

Source: Renesas Electronics Corp.

The new RH850/C1x devices can be used with the RAA270000KFT RH850 family power supply management IC (PMIC), which is currently available in sample quantities. The power management IC integrates into one device all the power supply systems required for MCU operation, two external sensor power supply tracks, and a full complement of monitoring and diagnostic functions, significantly reducing the user burden associated with power supply system design.

The RH850/C1H and RH850/C1M MCUs incorporate large memory capacities achieved through 40 nm MONOS process technology. The RH850/C1x series is based on Renesas’s metal oxide nitride oxide silicon (MONOS) embedded flash, which has an extensive track record in mass production. The MONOS characteristics include fast readout, low power consumption, and large storage capacity. The RH850/C1M and RH850/C1H devices offer memory capacities of 2 MB and 4 MB, respectively. In addition, 32-KB data flash memory, with essentially the same functionality as EEPROM, is included for data storage.

The microcontrollers also feature an extensive set of peripheral functions for HEV/EV motor control. The RH850/C1x MCUs can implement three types of motor control in hardware: sine wave PWM, over modulation, and square wave.

Samples of the RH850/C1H and RH850/C1M MCUs are scheduled to be available from the beginning of 2015 and will cost $45 and $50 per unit, respectively. Mass production is scheduled for May 2016 and is expected to reach a scale of 100,000 units per month.

Source: Renesas Electronics Corp.

Cabinet-Based DIY Electronics Workspace

Micrcontrollers and electrical engineering probably don’t come to mind when you flip through an IKEA product catalog. But when you think about it, IKEA has plenty of easy-to-assemble tables, cabinets, and storage containers that could be handy for outfitting a electronics workspace or “circuit cellar.”

(Source: Patrik Thalin)

(Source: Patrik Thalin)

Sweden-based Patrik Thalin built a workspace within an IKEA Husar cabinet. The setup is compact, orderly, and well-planned. He noted:

It has a pull-out keyboard shelf that I use it as an extension of the workspace when the doors are open. My inspiration came from a friend that had built his lab in a two door closet. The main idea is to have a workspace that can be closed when not used and to be able to resume my work later. I have used this lab for nearly ten years and I am still happy with it!

In the upper part of the cabinet I keep commonly used tools and instruments. On the top shelf are two PSUs, a signal generator, assortment boxes with components, the SMD component kit and shelf trays with cables and small tools. On the lower shelves are things like multimeter, callipers and a power drill. At the bottom is the work space with a soldering station. On the left wall are screwdrivers,wrenches and pliers. To the left are cables hanging on hooks.The thing hanging under the shelf is an old radio scanner. You can also see a small vise hanging on the front of the workspace.

The lower part of the cabinet is for additional storage, he noted.

(Source: Patrik Thalin)

(Source: Patrik Thalin)

The information and images were submitted by Patrik Thalin. For more information about his space and work, visit his blog.

Makelab Charleston, a place for hobbyists and professionals

Makelab Charleston is a hackerspace for hobbyist and professionals who share common interests in technology, computers, science, or digital/electronics art. It provides an environment for people to create anything they can imagine: from electronics, 3D printing, and construction, to networking, and programming.

Location 3955 Christopher St, North Charleston, SC 29405
Members 24

Treasurer David Vandermolen will tell us something more about Makelab Charleston.

MakeLabCharleston

Tell us about your meeting space!

We started in a 500 sq. ft. garage, but took a step up and are currently renting a 900+ sq. ft. home that’s been renovated.  We now have the space for a electronic/soldering room that also has our 3-D printer. One other room is dedicated to power-type tools and our CNC machine that is still being built by our members.  The other spaces in the house are used for classes and member activities such as LAN parties.

What tools do you have in your space? (Soldering stations? Oscilloscopes? 3-D printers?)

Soldering stations, oscilloscopes, 3-D printer, power tools, large table-top CNC machine (in progress), and a rack server for the IT minded to play with.

Are there any tools your group really wants or needs?

A laser CNC, nice tables, and chairs .

Does your group work with embedded tech (Arduino, Raspberry Pi, embedded security, MCU-based designs, etc.)?

We have members that dabble in multiple areas so we try to provide classes on the technology people want to learn about and explore.

Can you tell us about some of your group’s recent tech projects?

Our most recent tech project has been a overhaul of our server system. Other projects include the CNC currently in progress. That’s been an ongoing project for about a year.

What’s the craziest project your group or group members have completed?

Probably the wackiest project we completed was actually, something not tech related at all, building a bed for Charleston Bed Races. We put together a Lego bed (not real Legos) complete with Lego man and all.

Do you have any events or initiatives you’d like to tell us about? Where can we learn more about it?

We list any events or classes we are doing or plan on doing on our Website. Just click on classes and events on the main page or go to the calendar tab.

What would you like to say to fellow hackers out there?

Makelab Charleston is about opening the world to information and sharing that information with the people in our community. The best way to do that is through teaching.

Show us your hackerspace! Tell us about your group! Where does your group design, hack, create, program, debug, and innovate? Do you work in a 20′ × 20′ space in an old warehouse? Do you share a small space in a university lab? Do you meet a local coffee shop or bar? What sort of electronics projects do you work on? Submit your hackerspace and we might feature you on our website!

Mandalas Blend Technology and Spirituality

Multimedia artist Leonardo Ulian’s work includes his stunning “Technological Mandala” series, in which he precisely arranges tiny electrical and computer components to create colorful and symmetrical mandalas. In Hindu and Buddhist cultures, a mandala is a geometric and spiritual artwork representing the universe and is used in meditation. In this interview, Leonardo discusses his background, artwork, and inspiration for blending technological and ephemeral themes.—Mary Wilson, Managing Editor

 

MARY: Where were you born and how long have you lived in London?

LEONARDO: I come from a little village called Ruda, situated in the northeast region of Italy, Friuli-Venezia Giulia. I have lived in London since 2004.

Technological Mandala 17: Electronic components, copper wire, paper, 72 cm x 72 cm, 2013 (closeup),

Technological Mandala 17: Electronic components, copper wire, paper, 72 cm x 72 cm, 2013 (closeup). (Photo courtesy of Leonardo Ulian)

MARY: I understand you started out pursuing a degree in micro-electronics, then trained as a graphic designer before earning a fine arts degree. Can you tell me about your education and what made you turn your training toward the arts?

LEONARDO: My first attempt to do art was more related to the activity of just making things. Since I was very young, I always liked to play with hammers, nails, pieces of wood, and other bits and pieces in order to make my own little toys. But more than anything else, I liked to open old radios to see what was hiding inside.

In the 1980s, I attended an electronics school, also because I was fascinated by the new technology revolution of that period. I do remember myself stuck in front of the television watching an American TV series about robots, computers, and all that sort of stuff. While I was studying electronics I attended an art course and I specialized in airbrush hyper-realistic painting techniques. I then studied graphic design and I worked as a graphic designer and photo-retoucher for several years until I moved to London where I obtained my BA degree in fine art.

Technological Mandala 17: Electronic components, copper wire, paper, 72 cm x 72 cm, 2013.

Technological Mandala 17: Electronic components, copper wire, paper, 72 cm x 72 cm, 2013.

MARY: How did you come up with the idea for the “Technological Mandala” series? What was your inspiration and what are you trying to convey with these pieces that solder together electrical components, circuitry, and microchips?

LEONARDO: I liked the idea of combining different worlds such as spirituality and mandalas with technology and underlining the fact that electronic technology devices have become fundamental for our daily lives, almost something to worship.

I am also fascinated by the pure exercise of geometry used for the construction of the traditional mandalas—an ordered representation that is used to explain something that probably has nothing to do with geometry, which is the meaning of everything we perceive around us as living beings. I guess my artistic and spiritual research have led me to discover the world of mandalas.

I am not a spiritual person, or at least not in the traditional manner. And I am not particularly polarized with a specific belief. But I do like the idea of a world made with infinite connections among persons, objects, or places, like the connections I make in my technological mandalas. I also like to believe that what happens in one of the parts of the connection can affect the others as well.

Electronic components have always fascinated me; there was something in them that has attracted my fantasy since I was very young. I always asked myself how these little things were able to do what they do within electronic devices. After my studies in fine art, I started to think about my old passions and interests in a different way. This is why now, in my eyes, the electronic components have lost their real functionality in order to become ephemeral objects able to trigger the eyes and minds of the viewers, but in a different manner.

Technological Mandala 38: Electronic components, white Perspex, triple mounting board, 60 x 60 cm, 2013 (close up).

Technological Mandala 38: Electronic components, white Perspex, triple mounting board, 60 cm x 60 cm, 2013 (close-up). (Photo courtesy of Leonardo Ulian)

MARY:  Can you describe how you created the pieces? The materials and techniques you used?

LEONARDO: I make the basic geometry design in a computer. I print the resulting image onto paper, and then I bring in countless electronic components—some recycled but most bought from online websites—to fill in the shape I have created. I spend hours online researching nice and colorful electronic components. The difficulty is that nowadays technology is moving toward miniaturizing the electronic components, and quite often they do not have any color code.

MARY: You started the series two years ago. Is it now complete?

LEONARDO: The series isn’t yet completed, it’s a work in progress and I do not know when it will be finished. I guess the series is evolving as the technology—especially the electronic one—is changing rapidly.

Technological Mandala 02 (the beginning). Electronic components, microchip, wood frame, 120 x 20 cm, 2012.

Technological Mandala 02 (the beginning). Electronic components, microchip, wood frame, 120 cm x 20 cm, 2012. (Photo courtesy of Leonardo Ulian)

MARY: Do you have other artwork, such as “Technological Mandala,” that presents technology in an unconventional and thought-provoking way? Can you tell me more about that work?

LEONARDO: One of my early pieces is called “Now and Forever.” It’s an old petrol lantern modified in order to have, instead of the real flame, a mini-LCD screen with a video of it. The virtual flame within the mini screen is powered by a DVD player instead of the petrol, and it could run forever—or at least until there is no longer electricity available.

"Now and Forever" (Photo courtesy of Leonardo Ulian)

“Now and Forever” (Photo courtesy of Leonardo Ulian)

MARY: What technologies most interest you? Do any of them intrigue you as inspiration for future projects? If so, how might you use them?

LEONARDO: I do not have a particular interest in a specific piece of technology; I like to pick up things that stimulate my imagination. But, among other things, I am fascinated by magnetic fields and how the spectator could interact with them in order to generate art.

The piece “Close to the Essence” explores my interest in magnetic fields. It is a system of elements, like a hi-fi system, that becomes a totem able to interact with the spectator. The whole structure becomes a giant theremin I made using three simple AM radios, and the sound generated by the sculpture varies according to the proximity of the viewers.

"Close to the Essence" (Photo courtesy of Leonardo Ulian)

“Close to the Essence” (Photo courtesy of Leonardo Ulian)

MARY: What project are you currently focusing on?

LEONARDO: At the moment I am focused on further developing the idea started with the “Technological Mandala” series.

MARY: Do you have a dream project, something you are resolved to do sometime during your artistic career?

LEONARDO: I do not have a specific dream project, although my sketchbooks are full of ideas. I try to work day by day in order to produce things I am happy with. I have to say that almost always I have doubts about the things I make, but this keeps me going forward to create the next piece.

Technological Mandala 05: Electronic components, microchip, wood frame, 60 x 57 cm, 2012. (Photo courtesy of Leonardo Ulian)

Technological Mandala 05: Electronic components, microchip, wood frame, 60 cm x 57 cm, 2012. (Photo courtesy of Leonardo Ulian)

'Dardoby"

“Dardoby” (Photo courtesy of Leonardo Ulian)

MARY: You are a self-described multimedia artist. Can you tell me about some of your other artistic pursuits, including The Apathy Band you co-founded?

LEONARDO: I do like to think that art can explore different fields, as the great master Leonardo da Vinci did in his practice. The Apathy Band is an open project created by the artists Bob and Roberta Smith and I am one of the co-founders. The instruments I play in the band are toys I have accurately modified, like old electronic keyboards or electronic gizmos and animated toys. Two examples are the Dardomin, a theremin I created using AM radios, and the Dardoby, a circuit-bent Furby toy puppet I use to generate unexpected sound. I have also collaborated with the artistic duo Marotta & Russo to create the soundtracks of their videos. (Refer to “Timeline” and “Netopia.”)

Leonardo Ulian has had numerous solo exhibitions in London and elsewhere. He is the recipient of the Owen Rowley Award, London (UK), and the Italian national prize Stamps of the XX Century. You can follow Leonardo on Twitter at @ulianleonardo.

Technological Mandala 29: Electronic components, copper wire, paper, 120 cm x 120 cm, 2013. (Photo courtesy of Leonoard Ulian)

Technological Mandala 29: Electronic components, copper wire, paper, 120 cm x 120 cm, 2013. (Photo courtesy of Leonardo Ulian)

 

Centrical Bonsai Tree: Electronic components, cement and steel base, 135 cm x 35 cm x 35 cm, 2013 (close-up).

Centrical Bonsai: Tree, electronic components, cement and steel base, 135 cm x 35 cm x 35 cm, 2013 (close-up). (Photo courtesy of Leonardo Ulian)

Centrical Bonsai Tree: Electronic components, cement and steel base, 135 cm x 35 cm x 35 cm, 2013 (close-up).

Centrical Bonsai: Tree, electronic components, cement and steel base, 135 cm x 35 cm x 35 cm, 2013. (Photo courtesy of Leonardo Ulian)

 

CC281: Overcome Fear of Ethernet on an FPGA

As its name suggests, the appeal of an FPGA is that it is fully programmable. Instead of writing software, you design hardware blocks to quickly do what’s required of a digital design. This also enables you to reprogram an FPGA product in the field to fix problems “on the fly.”

But what if “you” are an individual electronics DIYer rather than an industrial designer? DIYers can find FPGAs daunting.

Issue281The December issue of Circuit Cellar issue should offer reassurance, at least on the topic of “UDP Streaming on an FPGA.” That’s the focus of Steffen Mauch’s article for our Programmable Logic issue (p. 20).

Ethernet on an FPGA has several applications. For example, it can be used to stream measured signals to a computer for analysis or to connect a camera (via Camera Link) to an FPGA to transmit images to a computer.

Nonetheless, Mauch says, “most novices who start to develop FPGA solutions are afraid to use Ethernet or DDR-SDRAM on their boards because they fear the resulting complexity.” Also, DIYers don’t have the necessary IP core licenses, which are costly and often carry restrictions.

Mauch’s UDP monitor project avoids such costs and restrictions by using a free implementation of an Ethernet-streaming device based on a Xilinx Spartan-6 LX FPGA. His article explains how to use OpenCores’s open-source tri-mode MAC implementation and stream UDP packets with VHDL over Ethernet.

Mauch is not the only writer offering insights into FPGAs. For more advanced FPGA enthusiasts, columnist Colin O’Flynn discusses hardware co-simulation (HCS), which enables the software simulation of a design to be offloaded to an FPGA. This approach significantly shortens the time needed for adequate simulation of a new product and ensures that a design is actually working in hardware (p. 52).

This Circuit Cellar issue offers a number of interesting topics in addition to programmable logic. For example, you’ll find a comprehensive overview of the latest in memory technologies, advice on choosing a flash file system for your embedded Linux system, a comparison of amplifier classes, and much more.

Mary Wilson
editor@circuitcellar.com