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Decreasing sizes of semiconductor process geometries and greater number of metal layers, interconnections and components result in a large number of parasitic devices during netlist extraction. This can be problematic for simulation and verification engineers. Fortunately, SPEF (standard...
mhoulroyd
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Back in the early 1990's, I accompanied our chief engineer to visit Intel. My company had just designed a new high-density pin grid array socket for Intel's new Pentium family. The Intel engineers loved our product and used it in their laboratories for testing. But later during that visit...
SPICE files embody the lowest level of digital and analog circuit behavior in circuit design and verification after place and route. It provides the analog behaviour of transistors and components of digital circuits and gate functions. Multi-layer circuit boards also utilize SPICE, especially if...
FGPA, ASIC or SoC designers use a variety of HDL's (hardware description languages) including Verilog, VHDL or SystemVerilog which can complicate visualization of complex designs. This is particularly the case when having to analyze designs from other engineers in your team and trying to figure...
These days, digital, DFT and mixed-signal engineers have to decipher larger and more complicated System-on-Chip (SoC) functionality, with multiple RTL components and Intellectual Property (IP) blocks obtained from a variety of sources. This can consume hours of engineering time. Comprehending...
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Spring-loaded pins are rapidly finding new applications in modular product design. Also referred to as SLCs (spring-loaded connectors), this product resolves many of the manufacturing issues like misalignment, coplanarity, and tolerance stack up that can plague traditional pins and sockets...
It's been 4 years since I last posted on the EDAboard. There have been so many changes in the electronics industry. Spring pins are still one of the fastest growing forms of interconnecting two PCBs. The advantages for a designer to use spring pins are numerous: 1) The ability to blind mate two...
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Find bellow an Android TCP client extension that implements a very simple socket; note that its operation is performed 'one-shot', which means that only one command is sent ( and its respective response, read ) at a time, and then the socket connection is closed. So, be aware that it is not a...
The following attached file contains a ThingSpeak client extension that allows one to easily make use of the Read and Write features of the ThingSpeak cloud service provided by MathWorks in such a manner that programmer is able to transparently make use of the service without having to deal...
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The following attached file contains an SSH Client extension which I made for my own use, but it may also be useful for users of the MIT Application Inventor 2 (AI2) community, or even to the AppyBuilder community (code intrinsically compatible for the last one, but not tested). This is just the...
Note: In earlier versions of the 802.11 standard, the (BCC) OFDM example was given in Annex G. However, an error existed (e.g. in IEEE Std 802.11-2007) in that the FCS was incorrect (see link or search online for "IEEE 802.11-09/0042r0"). The WiFi (802.11) standards documents are free to...
Hi, This project is to build cyclic on-off programmable timer. In this project user can set ON timer and Off time using keys and 7 segment display. Relay is provided as output, where relay will be remained ON for ON time and it will goes OFF after ON time overs. And Relay will remain Off till...
"What programming language skills do employers want? Online job-search firm Indeed took a look at three months (18 May to 18 August) of 2018 job listings in its tech software category to find out. The company ranked programming languages according to the percentage of job postings within the...
Moore’s Law is over, ushering in a golden age for computer architecture, says RISC pioneer David Patterson—University of California professor, Google engineer, and RISC pioneer—says there’s no better time than now to be a computer architect. Some highlights "As an example on the...
Feedback: Please leave the comment below. Is this blog entry helpful or does it need an improvement? The problem: In Vivado 2018.2 in the IP Packager when I was trying to make a custom component with mating interfaces to control PCIe4 IP Core, I couldn't do it because in the IP Packager PCIe4...
The problem: In Vivado 2018.2 in the IP Packager, when we want to set a value for any interface parameter, we won't get any TCL commands in the Tcl Console. This is probably a bug in the Vivado 2018.2. The following images visualize the problem: The solution: I managed to...
The background: I recently bought Raspberry PI 3 B and was shocked how fast and intuitive were the installation and the configuration. I have started using Raspbian with NOOBS (the Operating System installer) from https://www.raspberrypi.org/downloads/ NOOBS lets me choose which OS to install...
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xpress_embedo
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In this blog post i will share the OLED libraries with you, which are written for mikroC compiler and can be used with any other C compiler. Following are the functions which are currently present. void OLED_Init( void ); uint8_t OLED_Width( void ); uint8_t OLED_Height( void ); void...
Hello readers, I am writing for my very first post in my very first blog. I would like to share with you some of the bad habits that I used to do at work and fortunately I have changed them into good habits. I would first quote something my brother heard in a finance course a while ago. "A...
Electrical Ground is the reference point in circuits from which voltages are measured. Using the symbol of ground we can make our circuits looks simpler. Three types of electrical grounds are: Simple ground Digital Ground Chassis ground Earth ground Simple ground This type serves as...
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The switching is required in many applications at low as well as at high frequency. RF MEMS switches are the specific micromechanical switches that are designed to operate at RF to mmWave frequencies. MEMS switches usages some mechanical movement to achieve a closed or open circuit in the Radio...
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EastbayA
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By Lee Teschler, Exeutive Editor EEWorldonline.com Ground-fault circuit interrupters (GFCIs) are sometimes also called earth leakage or residual-current circuit breakers. They can sense leakage current to earth ground and interrupt the circuit automatically when leakage current exceeds a...
By Chris Francis (originally appeared on EEWorldonline) I don't mean the transistor radio or mobile phone, but electronic devices and circuits that have been significant and enduring. Some are not necessarily "inventions", depending on how you define an invention, but significant designs...
craig_armenti
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Those of us who have been in the PCB design business for more than a decade either have direct knowledge of, or have heard the stories about, how the profession has evolved since the late 70’s and early 80’s. The shift from drafting tables, Mylar, and hand taping, to light tables, digitizers and...
By Bill Schweber As the use of LEDs for area lighting has grown dramatically, with both the use of LED-based replacement bulbs as well as LED-based fixtures for new construction (called luminaires in the trade), the issue of dimming these LEDs becomes more critical. LEDs require a very...
By Bill Schweber LEDs – light-emitting diodes – have largely supplanted other sources of light in many applications. They are used in applications ranging from small on/off power indicators, to small and large alphanumeric displays, to screen backlighting, and even for area and street...
Hi everybody! A daily life of an Analog Circuit Designer involves designing transistor sizes :-P , running simulations ;-) across corners :-?, design reviews 8-O, post-layout simulations :-x, sign-off of your checklists :oops: and finally tape-out :clap:. It doesn't stop here :laugh: After...
RFID stands for Radio-Frequency Identification. The RFID device provides a unique identifier for that object and just as a bar code or magnetic strip the RFID device must be scanned to retrieve the identifying information. RFID System Working Principal (details in Book "Practical Microstrip...
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by Bill Schweber on Analog IC Tips We have already looked briefly at Earth ground (if any), chassis ground, and commons (often misnamed as "grounds"). These do not exist as unrelated connections in a system. The issues related to connecting commons and ground is the subject of countless...
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The helix antenna is a travelling wave antenna, which means the current travels along the antenna and the phase varies continuously. Helix antennas (also commonly called helical antennas) invented by John Kraus give a circular polarized wave. Helix antennas are referred to as axial-mode helical...
by Chris Francis In 1980, the book "The Art of Electronics" was published, written by Paul Horowitz and Winfield Hill. For many people, myself included, it became the first book you picked up when you needed to know anything related to analog electronics. It was intended as a course textbook...
anilkrpandey
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RF & Microwave Designs
In many applications pertaining to missile, satellite, spacecraft and aircraft a directive antenna mounted on a curved body is required. Conforming the antenna to the surface save space and is often essential for structural reasons. An antenna that conforms to a surface whose shape is determined...
I am trying to do sparse matrix addition in matlab. 1. Suppose two matrix are give A and B, we have to get the sparse matrix format of the given matrix. This is easily done by sparse function in matlab and categorized accordingly in row, col and val. 2. Now we check the rows and cols of two...
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Time Domain Reflectometry is the analysis of conductor lines (interconnects)by sending a pulsed signal into the conductor and then examining the reflection of that pulse. A TDR transmits a short rise time pulse along the conductor. If the conductor is of a uniform impedance and is properly...
by Janet Heath, EEWorld contributing writer, Tips for preventing problems could fill a book, especially if every professor, technician, or engineer were to contribute tricks and tips that they have learned over the years. However, many will agree that an ounce of prevention is worth a pound...

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