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Embedded PCB Design
Datasheet Reliability with Ben Jordan
In this OnTrack episode Judy Warner and Ben Jordan discuss about Datasheet Reliability. Can you trust them? And what does “Gilded” mean? This & more about verifying app notes. Watch the full episode.
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Flattening Your Workflow: A Guide to “Flat” Style Project Management
As flat organizations become more popular so do the methods and processes that come along with them. This blog discusses not the flat organizational structure itself but how a flat organization functions within the project management arena. The principles of project management learned from a flat organization can be adopted in the flattest companies to the most hierarchically structured organizations. Being “flat” is hip but why should I do it
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Tips for High Frequency PCB Design in Embedded Systems
Today's high-speed embedded systems incorporate diverse functionality, components, digital interfaces, and of course, wireless/RF signaling. If you're designing embedded systems with any level of computing power that also includes an analog front end, then you have multiple mixed-signal design challenges to overcome. Whether it's a simple sub-1 GHz radio connection, Wifi/BLE, or multi-gigabit Ethernet, embedded systems need some way to interface
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What You Need to Know About Choosing Embedded Modems for IoT
IoT enables you to control devices over the internet. If you grew up in an era where the Internet existed without Google, you may be as amazed as I am to see how far technology has evolved. It would have been beyond my wildest imagination to think about machines conversing intelligently on the Internet without much human intervention. Back when I was introduced to the online world, it took several minutes to simply load a single page of sports
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Layout Guidelines for Embedded Power Supplies
I don’t get out to raucous parties as much as did in my 20’s. The thought of yelling over other people just to have a conversation is about as enticing as getting a tooth pulled. Crosstalk doesn’t just kill the mood at a party, it can ruin the functionality of electronic systems. Most PCB designers worry more about crosstalk between signals traces, but your power supply and power components can have an even greater impact. Thankfully, some simple
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Analog Meets Digital: How Converters Can Make or Break Signal Performance
We are born into a world of purely analog signals. The sound of a stream running through a mountain meadow, the brown color of dirt, that screaming baby next to you; all of these ‘signals’ are of an analog nature. Yet, we grow up and seem to spend most of our time attempting to turn these signals into a reproducible ‘digital’ copy so we can perceive them through a digital device. Analog and digital signal performance is necessary to keep in mind
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Embedded System Implementation and Testing Before Commission
Embedded systems and PCBs in these systems need to be thoroughly tested before deployment.
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Design Medical Devices for Internet of Things and Your Hardware Capabilities
It seems like everyone I know has a smartwatch or fitness tracker. I gave mine to my mother when I felt like it was making me act weird (I sometimes put my laundry away one item at a time instead of using a laundry basket to get those extra step counts). There are days when I still covet graphs informing me of my status sleeping, walking, and eating. Fitness trackers barely scratch the surface of capabilities for medical IoT, though. Medical IoT
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Putting Constraints to Work for You in Your Circuit Routing Software
When I was a kid, my parents had a 1955 Oldsmobile Super 88 Holiday. What a great car. As an eight year old though, the main thing that stood out to me was that it had a decorative rope that stretched horizontally across the back of the front seat. Sitting in the back with my brother one day, we informed our parents that with the fancy rope in place we no longer needed to use our seat belts. I saw my dad wink to my mom, and then at a very slow
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Manage Embedded Software through Software Architecture and Design Rules for a No-Line PCB Design
Recently, Amazon opened its first grocery market where one of its main points was its refusal of lines. Of course, its first-day publicity was a line of people outside waiting to try it out. I’m sure that as the newness diminishes it will be able to fulfill its promise of no lines; however, for now, I am mostly hoping that the store still had some rules in place in-case there was a line. After all, if one of your basic premises is to avoid lines
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Searching for Clarity of Signal by Addressing Integrity Issues in PCB Design
The clarity of TV signal transmission these days is amazing. I can still remember the days when I had a set of rabbit ears perched atop my 19” RCA. It was a challenge to position them just right to get the clearest picture, not to mention having to adjust them for every channel. Sometimes it’d take all night just to find the channel I wanted, so I’d sit down for five minutes and then head to bed. And if the weather was bad, forget about it. While
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Hide and Seek: Key Serial-Number Chips for PIC Microcontroller Code Protection
One of my favorite games, when I was young, was hide and seek. I would play with my friends and it was always fun to try and find a good hiding place. As an older brother, I played the same game with my younger brothers, but with a twist. Instead of hiding myself, I had to hide my stuff from them. If I picked good hiding places, my stuff was safe. However, if I was lackadaisical and chose poor hiding places they were sure to find my toys or
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Internet of Things Security Vulnerabilities: It's All About That Buffer Overflow
I follow a bunch of animal and nature publications, and recently the phrase ‘zombie ants,’ kept popping up in my feed. I decided to do a little digging and discovered that there’s a type of fungi - Ophiocordyceps - whose life cycle involves infecting ants that walk across its spores with fungal cells that infiltrate the ant’s central nervous system and essentially take over the ant. Once they have the ant "under its control", the fungus-infected
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Give Them No Quarter: Code Protection in PIC Microcontrollers for Duplication Prevention
Copying, from all understandings, seems like a disingenuous and sub-par strategy for any solution you need; from taking a test in school, to catching up with your friends, it is rare to find a moment where you would be rewarded for simply copying a message or answer. Imitating, on the other hand, is an encouraged practice in most professional industries - follow the guidelines and roadwork laid out before you so as to avoid the tedious work of
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Untangle Yourself with an SD Card Bootloader
Like Ray LaMontagne, I’ve got trouble . Smartphone trouble, trouble, trouble, trouble. I can figure out the apps I want, and I’ve got the games I need (wait, I might have those priorities backward), but transferring all my images and data is a bit more of a pain. There always seems to be music that gets left behind or images that, for whatever reason, refuse to back up. I consider myself pretty savvy, but when I got a new smartphone I was
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Security by Design: Internet of Things Authentification and Self Testing
Have you noticed how many organizations are getting hacked lately? Businesses like Equifax aren’t the only targets of these attacks; government institutions like the NSA have also been hit. Even the Internet of Things (IoT) has been targeted. Hackers infect and control devices in order to use them as a tool for distributed denial-of-service (DDoS) assaults . I’m sure you’ve gotten your credit card hacked, as well; I have. The difficult part about
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Designing a User Database for Card Access Systems
How long does it usually take for you to unpack your clothes and organize them after you move? If you’re anything like me, they might slowly move from your suitcases and boxes to a dresser over a healthy span of weeks. In the interim, I have to develop an internal logic of where, in all the clutter, certain clothes are located: dress shirts in the box at the foot of the bed, socks and underwear tucked in front of the dresser. Even my logic fails
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