#4 ARM Microcontroller Tutorial - USART Communication Part 1
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- Опубликовано: 5 авг 2024
- Purchase my new book: Arm Microcontroller Programming and Circuit Building Volume 1
amzn.to/3LFRaU5
Let's start communicating!! This video is an introduction to USART (also called UART).
Links to the software:
STM32CubeIDE: www.st.com/en/development-too...
STM Studio: www.st.com/en/development-too...
STM32CubeMonitor: www.st.com/en/development-too...
Parts you will need in your prototyping environment:
Kits to get you up to speed quickly:
newbiehack.com/Categories/ARM
If you already have the microcontroller, here are some breakout boards to use:
64 pin - amzn.to/3rUXeiq
48 pin and others - amzn.to/3IVkC6D
STM-Link V2 Programmer:
newbiehack.com/categories/new...
amzn.to/3IIZlgj
Prototyping Breadboards:
newbiehack.com/categories/new...
amzn.to/3o2Nh1g
Resistor Assortment Kit:
amzn.to/3H4R3ii
Solid core hook-up wire 22 AWG:
amzn.to/3IDGinA
amzn.to/3g5TKUJ
LEDs and Displays:
newbiehack.com/Categories/LCD...
amzn.to/3Az1zf7
Trimmer potentiometers:
newbiehack.com/Categories/Pot...
amzn.to/3H6q067
The Dynamixel servo I will be using in the USART videos:
amzn.to/35s3qHl
Microfarad Capacitor Assortment:
amzn.to/32BIX1G
Capacitors on Newbiehack.com:
newbiehack.com/Categories/cap...
Electrolytic Capacitor Assortment:
amzn.to/33TtLxt
The cheap oscilloscope that I use (because it's cheap and will work all of the projects in these tutorials): amzn.to/2rSHnBa
A better oscilloscope and the one I would recommend: amzn.to/2qizK5M
The brand of the multimeter that I use and the one I recommend: amzn.to/2qicUez
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I have been working on developing embedded systems for 8 years, and I've greatly benefited from your video. Thank you so much, you have the gift of explaining things well!
That is awesome!! Thank you so much for the kind words.
This week has been busy with crating machines, but next week and the following weeks, I intend to publish two to three videos per week on this microcontroller subject. CNC videos will also be published scattered here and there, mainly on equipment that poses a challenge to my customers. I hope you enjoy t his video and I am so excited to make more of these videos in this series. For those of you that are purchasing the books and kits, thank you so much. This really helps me keep going and provides some offset financially to make these videos happen.
This video introduces you to USART and compares a few other communication methods. I am learning Davinci Resolve, so it is a bit slow, but the features of this software are pretty cool. Hopefully, I have been able to do tracking in some creative ways to convey the content in a new and fresh way for you. Let me know if you like it. It is a bit harder and more time-consuming, but it is fun to see the results.
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Thanks pal! This information is worth millions!
Glad it was helpful!
Awsome job Patrick. I went through ypur AVR series here recently and learned a lot so i am excited about this new ARM series. Also bought your book, programmer and
breakout board today.
Thank you so much for supporting my efforts!!
No more motion blurs. That thing was giving me a headache each time I watched your videos. Noice.
Really appreciate for very good video
Looks like you're getting the hang of your new camera.
Nice video, looking forward to the series.
Ha, yeah. I'm still learning. I want to create a faster set up to go from camera to editing and back to the camera. I'm still working on getting better with focus. You can see in my close shots the camera doesn't really know what to focus on. I will need to think about how the camera focuses to "focus"" on the work.
Great video as usual...thank you so much. You're a great teacher.
Thanks!
@@PatrickHoodDaniel suffice to say that my real foray into embedded programming was actually through your Atmega video series. Keep making immeasurable impacts in people's lives across the globe who may never be able to repay you. We deeply appreciate.
@@olajideoyekunle9044 That is really kind of you to say. Thank you so much!!
I am studying computer engineering in germany and love your videos!
Thank you!!
Really you explained very well
Love your vids theyve been a great help! Could you entertain the idea of doing something with signal and power isolation? Perhaps on a CAN Bus for automotive / heavy industrial application?
@BuildYourCNC Currently I am working for a big semiconductor company and it was only possible with your Atmega series .. Keep up the good work and please provide patron link so than we can contribute our bit.
Thanks, that is awesome!! I am setting up a Patreon so I will add this to the descriptions soon.
Thanks for this other great video. I really enjoy the effort you are placing in teaching things step by step. Great work !
I had one question concerning the 74LVC2G241 - This is a dual non-inverting buffer/line driver with 3-state outputs. Can you explain what is the function of this IC, is it to avoid conflict transmission between Rx and TX?
Yes, it is a chip that allows the microcontroller to select which line to transmit or receive. There are three lines from the microcontroller to this chip, the TX, RX, and the signal to select which one to be used.
Please redo your avr tutorials as well thank you. Moving on to arm!!
Thanks.
Hi, is the code written in the book bare metal code or does it use some framework such as the HAL of cubeMX?
Mainly register level. The new series I'm doing on my RUclips channel is mixed. I do everything at the register level, then using autogenerated code and HAL.
I was hoping to find an off-the-shelf solution that does SYNCHRONOUS 9-bit UART at 1Mbps, both as a master and slave. For example, as a Master it would output a 1Mhz CLK, and TX, where the data shifted on the TX pin (changes on the falling edge of CLK) and consists of:
1-start (low), 9-Data (lsb-first), 1-odd, 1-stop (12 bits total)?
And as a slave, it would latch what's on the RX-Line on the rising edge of 1Mhz CLK (generated externally)?
The closest I found is, Digilent's Analog Discovery 2, but it only lists u*A*rt.
Microchip has a (discontinued?) PicKit Serial Analyzer (DV164122) capable of doing USART.. however, the GUI (2.2) shows only "USART Sync Master". More concerning is that the firmware (305), and Dll (2.4) is from 2009, so even if I buy the hardware, not sure if it will work with Win10. The API examples are for VB2005.
could u also explain the ring buffer and how to utilize it in arm microcontroller
Sure, I will take a look at this and bring it up in a future video.
Just a quick question off topic here. Do you use apsc or full frame camera to make those great macro videos? Just curious. Thanks for the great videos . Count me in to follow with your book :)
No problem. I use a Sony A6300, not full frame, unfortunately. I could only wish!! Haha.
@@PatrickHoodDaniel Good enough! In fact I'm surprise how good it is. Do you mind telling what lens you used? Sigma 16mm or 30mm? I've got the A6000 ...
@@glewiss6696 SEL50F18. Here is a link to the lens in amazon: amzn.to/3pbcLu2. (Disclaimer, it's an affiliate link)
Not related to the video per se, but what mechanical pencil are you using? Haha.
It looks amazing.
Everybody asks that question! Haha: newbiehack.com/categories/newbiehack-development_tools-mechanical-drafting-pencil
Hello. often program the microcontrollers. I see bit shift right or left using symbol ">>". why we use it. I am waiting for your response thank you.
It only controls the direction to shift the value.
@@PatrickHoodDaniel why controls the direction
Your book is very useful. Is there a way to purchase a pdf colour version - I find this format more useful when working on projects or traveling. Many thanks !
I can make one available. I didn't think there would be any interest as the price would be a bit higher.
@@PatrickHoodDaniel yes please, from your website I will be happy to support your efforts ;-) it is much practical for my workflow. Thanks
I just wondered about peoples experiences with breadboards - I've bought a bad bunch - flakey connections and really frustrating. My fault I know for buying cheap but are the expensive breadboards any more reliable?
Yes, more expensive breadboards are generally more reliable, but pay special attention to reviews and where the breadboard was made. The cost of the breadboard could just be the seller pricing it higher.
@@PatrickHoodDaniel The breadboards with good reviews seem to be made in the US (eg Busboard) and are just too expensive to buy in Europe. I think I'm going to give up with breadboards and solder - soldering isn't too bad really.
@@M0XYM Once you buy a good set of breadboards, you will have them for life, just like a good tool. You can also try making your own breadboards using female headers.
Beside the valuable informations that you provide I like your pen 🖊 I would be happy if you can tell from where I can buy one
Thanks. You can get the pencil here: newbiehack.com/categories/newbiehack-development_tools-mechanical-drafting-pencil
@@PatrickHoodDaniel thank you very much 😊