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One of the very useful transformerless power supplies using Viper12A IC can be used in many applications. It is sufficient to run micro-controllers, sensors, displays, relays, and so on. With very few numbers of components, we can get a reliable transformerless power supply using Viper12A...
Basics: To generate PWM(Pulse Width Modulation) both analog and digital circuits can be used. But using a micro-controller is much easier than other methods. To generate PWM, the micro-controller has a built-in PWM module. But if there is no such PWM module then how can you generate PWM? Yes, in...
SONY SIRC Protocol: There are three types of SIRC protocol, 12, 15, and 20bit types. All these types have a command and device word. The 20-bit version has only 8bit extended words. Within the bitstream, each word is sent LSB first like this pattern below: The frame timing is based on...
The basic of comparator: Comparator is one of the mode of Op-Amp circuit. It is pretty simple in configuration like this image below: The output of the comparator is high if the non-inverting input voltage is higher than the inverting input pin. And the output is low if the non-inverting pin...
Small is a relative term. In the 1990's a small PC socket was a leaded device on 2,54mm pin centers, and miniature was a staggered 2,54mm grid. In the past 10 years, small was considered 2mm pitch and miniature was 1,27mm pitch. During my time as a product designer of small precision...
The background: I have found a way to debug a Keil's project using OpenOCD inside STM32CubeIDE. This approach assumes that the Keil built the project to the .elf file using fromelf.exe tool. The same method can be successfully used for debugging in any other capable environment, e.g. VSCode...
I would like to share with you summary of important Mercurial commands Source: https://electgon.com/publications/tools/basic-hg-commands/
Assumptions: STM32CubeIDE needs to be installed. At the time of writing this guide, STM32CubeIDE version is 1.6.1 Build: 9958_20210326_1446 (UTC). OpenOCD and GDB server are already preinstalled in STM32CubeIDE, so no need to install separately; Keil's .uvprojx project needs to be built to .elf...
Introduction: Specifying the correct printed circuit board pad, land and, hole sizes are critical to the device mechanical attachment of a machined pin or socket. Through-hole PCB designs come in two flavors: plated and unplanted. A plated hole provides a path for solder wicking due to...
I would like to share with you summary of important Git commands Source: https://electgon.com/publications/tools/basic-git-commands/
Checkout full description with code from my website, For code click here
Wonder if you know what rental LED display can do for you exactly? Discovering its’ possibilities may help you find new ideas of how to boost your own business and events. That is the reason why we will discuss possible rental LED screen events today - to explain why rental LED screen can play...
The background: I have to use Keil in my job and honestly - I don't like it much. The debug is great, but the editor is lacking in many features compared to other IDEs. I was trying to find a working extension to STM32CubeIDE to integrate Keil's toolchain (build/rebuild/clean) and parse all...
The background: I have to use Keil in my job and honestly - I don't like it much. The debug is great, but the editor is lacking in many features compared to other IDEs. The main purpose of this blog entry is to make STM32CubeIDE project from Keil's project source files. The solution: I assume...
The background: Standards in general are useful as far as they are not overwhelming. In this blog entry I would like to present my embedded project structure. I keep it for every new project for easier navigation throughout project's domains and to speed up project creation. My embedded project...
The background: In this blog entry I have shown one way to get a "minimal" Eclipse version. Here I will point to useful plugins and additions. How to add the Marketplace? NOTE: The Marketplace is a place where you can add different plugins to the Eclipse. Go to Help->Install New Software...
The background: The example solution is focused on the I2C interface. The walk-through is similar for every single interface. Adding entry to the board.xml file Add in <interfaces> section: <interface mode="master" name="iic_main" type="xilinx.com:interface:iic_rtl:1.0"...
Eclipse installation: Go to download.eclipse.org/eclipse/downloads/ Find the Latest Release section and click on Build Name (e.g. 4.17): Scroll down the page and find the Platform Runtime Binary section and click on the appropriate version for your OS: Download it and install. Eclipse needs...
Introduction: For round pins with precision critical diameters, multiple barrel diameter variations, and drilled holes, CNC machining is the ticket. For the other one-billion-part applications, metal forming, and fabrication processes offer the best solutions. Consider the following...
mhoulroyd
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Introduction: One of the most overlooked, least thought-out components assembled to a PCB is the pin terminal. Although they’re not exciting like logic devices, they can present complications to those who disregard their correct application. Consider the profit loss of fully populated PCBs...
Introduction: Reducing height and space is always a goal in new product design. Reducing module space translates into cost savings. For rackmount assemblies, space is limited between printed circuit boards. Low-profile carriers eliminate permanent onboard insulators minimizing socket...
Hand assembly and soldering of individual pin arrays to a PCB is inefficient, costly, and results in poor product quality. Yet, some manufacturers are still doing this. One old-school production soldering method employed for thru-hole PCB assemblies is called wave-soldering. To accomplish...
Here I have uploaded my designed single cycle 8-bit CISC microprocessor using Verilog HDL. So Let's see and try your own as per your specification. First of all, as we know CISC microprocessor has separate instruction memory and data memory so here I have make two text file for that and then...
In this post, I will explain the 3 stages of the pipeline microprocessors namely the Fetch Unit, Decode Unit, and Execute Unit. So Let's start designing based on the specification given below. Stage-1: Fetch Unit Fetch Unit comprises half-word addressable instruction memory. It takes PC as...
Introduction: Which quagmire have you experienced lately? Case 1: Your production assembly schedule goes off the rails due to QA finding random misaligned surface mount connectors due to migration during reflow. Case 2: You’re taking returns due to field failures; fatigued surface mount...
Introduction: Manually placing fields of discrete pins upon a printed circuit board is a poor production PCB assembly strategy. This action is not only tedious and prone to errors but extremely cost-ineffective too. Vertically unstable pins tilt, creating harmful soldering rework. Misaligned...
Have you ever had this experience? After placing a purchase order, the supplier discovers they cannot manufacture the promised part. Because you did not plan properly, you have no choice but to buy an expensive, unproven custom product. With no prior reference history, you are the...
niciki
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The background: I have to use Keil in my job and honestly - I don't like it much. The debug is great, but the editor is lacking in many features compared to other IDEs. I was trying to find a working extension to VSCode to integrate Keil's toolchain (build/rebuild/clean) and parse all...
SPICE netlists and other analog source code are getting more complex and more time-consuming to read. Certain new software tools now allow you to define and save SPICE data of a fragment for quick partial simulation, locally or remotely in an external simulator. Usually, even minor changes in...
I would like to share with you summary of the C language. Source: https://electgon.com/c-crashsheet/
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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