<div class="entry-content"><div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/YzBtfN1LQtM" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span></div><div class="blog-content"> I challenged a software engineer to design his very first PCB. What happened?</div><div class="blog-content-chapters"><div>Chapters:</div><ul class="chapters-list"><li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">The challenge</span></li><li class="chapters-list-item"><span class="chapters-time">01:01</span><span class="chapters-text">Schematic page</span></li><li class="chapters-list-item"><span class="chapters-time">03:46</span><span class="chapters-text">STM32</span></li><li class="chapters-list-item"><span class="chapters-time">10:18</span><span class="chapters-text">Power</span></li><li class="chapters-list-item"><span class="chapters-time">21:50</span><span class="chapters-text">Power LED</span></li><li class="chapters-list-item"><span class="chapters-time">23:29</span><span class="chapters-text">Boot and Reset</span></li><li class="chapters-list-item"><span class="chapters-time">27:47</span><span class="chapters-text">Crystal</span></li><li class="chapters-list-item"><span class="chapters-time">30:58</span><span class="chapters-text">USB</span></li><li class="chapters-list-item"><span class="chapters-time">33:59</span><span class="chapters-text">Arduino headers and User LED</span></li><li class="chapters-list-item"><span class="chapters-time">36:49</span><span class="chapters-text">SWI and UART connectors</span></li></div><div class="blog-content-links"><div>Links:</div><ul class="links-list"><li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li></ul></div></div>

Is this really how beginners design boards??? | Schematic Review

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/sKOUOU-hVEs" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
This video will help you to understand eye diagrams. Thank you very much Tim Wang Lee
    </div>

    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">What is this video about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:17</span><span class="chapters-text">How eye diagram is created and why it´s useful</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:35</span><span class="chapters-text">How reflections influence eye diagram shape</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:17</span><span class="chapters-text">Simulating reflections and checking eye diagram</span></li>
            <li class="chapters-list-item"><span class="chapters-time">20:19</span><span class="chapters-text">How crosstalk influences eye diagram shape</span></li>
            <li class="chapters-list-item"><span class="chapters-time">30:36</span><span class="chapters-text">Simulating crosstalk and checking eye diagram</span></li>
            <li class="chapters-list-item"><span class="chapters-time">35:09</span><span class="chapters-text">How loss influences eye diagram shape</span></li>
            <li class="chapters-list-item"><span class="chapters-time">41:13</span><span class="chapters-text">Simulating loss and checking eye diagram</span></li>
            <li class="chapters-list-item"><span class="chapters-time">50:32</span><span class="chapters-text">Equalization explained</span></li>
            <li class="chapters-list-item"><span class="chapters-time">57:53</span><span class="chapters-text">CTLE Equalization</span></li>
            <li class="chapters-list-item"><span class="chapters-time">58:49</span><span class="chapters-text">FFE Equalization</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:02:19</span><span class="chapters-text">DFE Equalization</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="http://www.keysight.com/find/ads-si-workshop">Learn more about Signal Integrity with ADS</a></li>
            <li class="links-list-item"><a href="https://www.keysight.com/us/en/products/software/pathwave-design-software.html">Get a head start with Electronic Design Automation</a></li>
            <li class="links-list-item"><a href="https://www.linkedin.com/in/timwanglee/">Connect with Tim</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

What does an eye diagram show? Here is how you recognize problems - reflections, crosstalk and loss

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/Rr9NBtrA4t4" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        Watch how differential pair signals are travelling through a PCB. Thank you very much Yuriy Shlepnev 
    </div>

    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">What is this video about</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:33</span><span class="chapters-text">Differential pairs routed on top / bottom, THIN PCB, 1W</span></li>
            <li class="chapters-list-item"><span class="chapters-time">12:56</span><span class="chapters-text">3W, Top / Bottom</span></li>
            <li class="chapters-list-item"><span class="chapters-time">17:17</span><span class="chapters-text">THICK PCB, Top / Bottom</span></li>
            <li class="chapters-list-item"><span class="chapters-time">23:49</span><span class="chapters-text">No GND plane</span></li>
            <li class="chapters-list-item"><span class="chapters-time">30:01</span><span class="chapters-text">Differential pairs inside of PCB</span></li>
            <li class="chapters-list-item"><span class="chapters-time">45:30</span><span class="chapters-text">3D animation, top/bottom, 1W</span></li>
            <li class="chapters-list-item"><span class="chapters-time">48:51</span><span class="chapters-text">3D animation, top/bottom, 3W</span></li>
            <li class="chapters-list-item"><span class="chapters-time">57:12</span><span class="chapters-text">3D animation, inside of PCB, 1W</span></li>
            <li class="chapters-list-item"><span class="chapters-time">58:40</span><span class="chapters-text">3D animation, inside of PCB, 3W</span></li>
            <li class="chapters-list-item"><span class="chapters-time">1:06:21</span><span class="chapters-text">Crosstalk examples</span></li>
    </div>
    
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.linkedin.com/in/yuriy-shlepnev-7b39136/">Yuriy's LinkedIn</a></li>
            <li class="links-list-item"><a href="https://www.simberian.com/">Yuriy's company</a></li>
            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
        </ul>
    </div>  
</div>

Watch Differential Pair Fields and Currents in PCB

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/_JQAve05o_0" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        How to write an I2C driver from scratch in C for an STM32F4 microcontroller interfacing with an accelerometer (Analog Devices ADXL355) using the datasheet and ST´s HAL (hardware abstraction layer).<br><br>Going through schematic, STM32CubeIDE setup, low-level functions, initialization, setting registers, reading registers, configuring the sensor, reading data, and finally testing the driver.
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">Introduction</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:28</span><span class="chapters-text">Sensor (ADXL355, JLCPCB)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:22</span><span class="chapters-text">Altium Designer</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:42</span><span class="chapters-text">Sensor Board Schematic and PCB (KiCad)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">03:38</span><span class="chapters-text">STM32F4 Schematic (LittleBrain)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">04:16</span><span class="chapters-text">STM32CubeIDE Setup</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:40</span><span class="chapters-text">Basic Project Structure</span></li>
            <li class="chapters-list-item"><span class="chapters-time">07:55</span><span class="chapters-text">Driver Header File</span></li>
            <li class="chapters-list-item"><span class="chapters-time">16:11</span><span class="chapters-text">Driver Source File (Low-Level Functions)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">18:41</span><span class="chapters-text">Driver Source File (Sensor Initialisation and Setup)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">26:18</span><span class="chapters-text">Driver Source File (Temperature Measurement)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">30:21</span><span class="chapters-text">Driver Source File (Acceleration Measurements)</span></li>
            <li class="chapters-list-item"><span class="chapters-time">34:10</span><span class="chapters-text">Testing the Driver</span></li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">


            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

How To Write A Driver (STM32, I2C, Datasheet) - Phil's Lab #30

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/DVErHmX-qyw" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        How to create a schematic symbol and PCB footprint in Altium Designer using information from the device datasheet (Raspberry Pi RP2040 microcontroller, QFN package).
    </div>
    <div class="blog-content-chapters">
        <div>
            Chapters:
        </div>
        <ul class="chapters-list">
            <li class="chapters-list-item"><span class="chapters-time">00:00</span><span class="chapters-text">Introduction</span></li>
            <li class="chapters-list-item"><span class="chapters-time">00:12</span><span class="chapters-text">JLCPCB / RP2040</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:02</span><span class="chapters-text">RP2040 Datasheet</span></li>
            <li class="chapters-list-item"><span class="chapters-time">01:45</span><span class="chapters-text">Symbol</span></li>
            <li class="chapters-list-item"><span class="chapters-time">06:10</span><span class="chapters-text">Footprint</span></li>
            <li class="chapters-list-item"><span class="chapters-time">11:35</span><span class="chapters-text">Importing a 3D Model</span></li>
            <li class="chapters-list-item"><span class="chapters-time">13:23</span><span class="chapters-text">Linking Symbol and Footprint</span></li>
        </ul>
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.youtube.com/watch?v=X00Cm5LMNQk&ab_channel=Phil%E2%80%99sLab">Raspberry Pi RP2040 Hardware Design | Altium Designer | JLCPCB - Phil´s Lab #28</a></li>

            <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
        </ul>
    </div>  
</div>

Symbol and Footprint Creation | Altium Designer - Phil's Lab #31

<div class="entry-content">
    <div class="jetpack-video-wrapper"><span class="embed-youtube" style="text-align:center; display: block;"><iframe src="https://www.youtube.com/embed/eNR7eTs98VY" class="youtube-player" width="740" height="416.418" frameborder="0" allowfullscreen></iframe></span>
    </div>
    <div class="blog-content">
        What do you think? A $1000 USD laptop and charger that is designed to break …
    </div>
    <div class="blog-content-links">
        <div>
            Links:
        </div>
        <ul class="links-list">
            <li class="links-list-item"><a href="https://www.thingiverse.com/thing:5354040">Here you can download the cable holder, so you can 3D print it</a></li>
        </ul>
    </div>  
</div>


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Is this really how beginners design boards??? | Schematic Review

What does an eye diagram show? Here is how you recognize problems - reflections, crosstalk and loss

Watch Differential Pair Fields and Currents in PCB

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