How does USB work?
Ғылым және технология
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0:00 History of USB standard creation. USB-IF forum.
1:02 LPT port, it's features and problems. R2R DAC, COVOX.
2:51 The COM-порт (RS232).
4:10 Data transfer in COM-port.
4:54 Modern RS-232 implementations.
5:38 USB standard goals and ideology.
6:15 USB topology and device interaction.
7:08 USB connectors and sockets. USB-A and USB-B.
7:41 Mini USB and Micro USB. Proprietary USB sockets.
8:50 USB protocol versions. USB 2.0, USB 3.0, USB 3.2.
9:33 USB signals. GND, VUSB, D+, D-, shield.
10:42 How to easily remember the USB-A connector pinout.
11:22 Data exchange on USB bus.
11:55 Balanced (symmetric) connection.
12:53 Interference in a symmetric and non-symmetric cables.
13:25 Modeling interference using transformers.
14:14 Unbalanced circuit model.
15:29 Balanced circuit model.
17:02 In-phase and anti-phase signal. Differential amplifier.
18:29 Symmetric data-link in USB standard. Cable requirements.
19:24 Making a DIY USB cable off an FTP ethernet cable.
20:03 Why does USB use serial method of data transfer?
21:44 Non-return to zero inverted protocol (NRZI).
22:44 Bit-stuffing technique in NRZI.
24:06 Message exchange on USB bus. Device detection.
25:15 Packet size query.
26:15 Addressing on USB bus.
27:05 Device info query and driver loaing. Configuring devices.
28:36 How is full duplex mode implemented in USB standard?
29:36 USB OTG. Using slave USB devices as Host.
30:42 USB 3.0 standard and its key features.
31:37 USB-B connectors in USB 3.0. USB 3.2, type-C.
32:44 USB-PD (Power Delivery), voltages above +5v.
33:01 USB 4. Display Port and PCI-E tunneling.
33:40 Busting the "USB device not recognized" myth.
34:42 USB cable quality requirements.
35:50 Ron Mattino - Thanks for watching! ;)
Пікірлер: 53
This video is amazing !!! Too underrated, deserves millions of views.
@anonyone8834
Ай бұрын
Couldn't agree more
@mejiqal
Ай бұрын
yep
Wow, free electronics lab! Thank you for making these videos. Very informative and amazingly detailed explanations.
How does it works you ask? That's an easy one! 1 wrong side up, flip it. 2 wrong side up, flip it. 3 there it goes.
@savagesarethebest7251
Жыл бұрын
Yeah, USB connectors exists in a quantum superposition
An excellent video. USB was always a bit confusing for me with these different types. Not any more! 💚
Extremely informative and well detailed 👏
Так вот куда пропал Major Tom Workshop, отличные выпуски, подпишусь и тут. :)
Amazing video! Thanks for all this knowledge 🤓🙏🏼💪🏼
I couldnt find a better video ... my goal was to make my mini FPGA print characters on a LCD using a "USB Keyboard" , so i have to build a logic circuit that simulate USB interface to read the signal of the keyboard .. thanks to you i can probably make it
Great video! Hugely underrated channel, subbed and now hooked to watching the other explanations on computer stuff 😂
Exceptionally informative, thanks for making this.
Please don't stop making videos ❤️🔥🔥 Ur great ☺️ Love from India bother❤️
USB port had more common with PS/2 port instead of serial port... USB port originally only lacked one "used" pin of the PS/2 port, so it was possible to connect same device with passive adapter.
Great video love it and Waiting for more, Can't get enough
Great quality lesson. Thanks!
A very thorough, professional explanation of the high speed USB port. I like the fact that the presentation kept on target, no chasing rabbits, just relevant information, presented in a logical format, with great illustrations. For those who dealt with the various data ports that we part of the first PCs, the history of the keyboard, LP1, Serial ports, PCI busses, etc. was very interesting walk through memory lane. Parallel data transfer was once the high speed transfer leader, until technology kept raising the data transfer rate of two-wire serial data transfer. It's too bad that USB connectors took a while to resolve on the popular USB-C format, whose connection is not keyed.
Awesome work mate 👏🏻 Subscribed 👍🏻
great video, wonderfgreat video, wonderful explanation gained a subscriber, at 32:44 USB-PD will the video still be released? Or is it already posted somewhere? Sorry if the question is stupid, I'm based on the automatic translation of the subtitles made by YT into Portuguese.
Смотрел Вас там, теперь и тут буду, спасибо!
So much useful knowledge in this video, thanks a lot !
WOW is all i can say from the science of the electronic to the actual electrical diagram to the test of the electrical system to the actual practical use and debugging it just WOW 🕶🕶🕶
In addition to the theory of USB designs, manufacturers of cables and accessories to these cables have added features. These features may often be necessary for some users. Earlier products have trouble handling the additional demands now often expected. Especially the increased current flow that the devices at either end of the cables may want to use with the cable. The later standards of USB can theoretically handle these increased power demands (120+ watts) of the earlier designs. These perform differently, depending on the quality and length of the cables. Some cables have magnetic fittings at the device end. These magnetic ends may be removable or changed according to the type of device. Other options include short or longer lengths, adapters, and converters for combinations of plug endings, and coiled cables. Other more common variations exist in the length and physical toughness of the cable & connectors. Additional LED lights may be added to either end or just one end of the cable. Sometimes the whole length of the cable may be lit. It is now possible to buy cables with inbuilt digital current readouts at either end of the cable. The end plugs of the cables may also be in-line, right-angled, or versatile multi-angled, compared to the length of the cable. A rarely mentioned version of the “Micro USB 5 Pin B Male Plug” plug adds the ability to disregard the single “correctness” of the original design. This then allows use similar to the USB-C plug, where the correct connection can be done without 180-degree twisting. My purchases of these rare cables seem not available now.
Great content right here. Keep it up!
Great explanation
Gold video
Nokia was pretty late to join usb game. But they were part of the collection of companies that all agreed to move to use microusb for charging(apple was one of those companies interestingly enough). Most other mid 00's smartphone manufafturers like htc used miniusb for years before.
Amazing video.
Very informative video dear sir
@user-zb9us4on9r
Жыл бұрын
HI thete, do you know who Ron Mattino is or what his intent is in KZread?
Nice video Keep it up
Bravo
IAm for Pakistan and very informative knowledge in this video thanks for this video
A trip in the past.... Le vecchie porte mi hanno fatto pensare al Amiga 500
DB connectors doesn't stand for "double bolted", right?
@RonMattino
Жыл бұрын
Apparently, DB stands for "data bus" :)
*TX means transmit not transfer.
How does USB work ? Well you just plug it in; no the other way.... No, the "other other" way... 3rd time is always a charm....
NOBODY TELL OR I BELIEVE EVEN TECH KZreadRS KNOW THAT USB WAS INVENTED BY AN INDIAN MR. AJAY BHATT
pull-up of 1.5kohm only for USB Full speed.
"Pieces of seven, pieces of seven" - hmm, must be a parroty error... Warning, understanding this joke requires knowledge of classic literature and obsolete serial communication protocols 😄
@Hakutara
11 ай бұрын
Bruh!
you are russian or talk to russian people
Don't use china made cables? hehehe LOL
Why do you put a funny accent on? Do you believe it makes you more interesting?
@RonMattino
Жыл бұрын
You nailed it! Do you think I should drop it?
@21stcenturyscotsadvertisin24
Жыл бұрын
@@RonMattino Yes, please. This is a technical video,, not a method-acting class.
@MG.Fishing
11 ай бұрын
cuz he's Russian
@21stcenturyscotsadvertisin24
11 ай бұрын
@@MG.Fishing LOL Ron Mattino is clearly an American name.
oh NO it didn't have any GALVANIC ISOLATION what are we to do? well as for me, I'm going to watch something else because I don't want to waste my time watching shit I don't understand it's that easy
Hm your videos really close to @MajorTomWorkshop
@MG.Fishing
11 ай бұрын
Cuz it's him