Bare-Metal MCU #8: Optimizers and Bit-Banging 

This is pure gold. Im literally learning this stuff as an engineer and the fact that u explain all this topics that easily and understandably is amazing. Can’t wait for more. Thanks sir

The way you are explaining these topics is great, you're making them so easy to understand.

Mitch, this video has a couple of technical inaccuracies. Firstly, "bit banging" is the practice of emulating a peripheral (e.g. PWM, I²C) via direct port manipulation. What you meant to say was "bit manipulation". Secondly, it's not an "amperstand", it's an AMPERSAND.

in the previous video i commented about "less" being the pager for man file. in this video i can see that you're using "more". this is basically the same thing. "more" being the old pager. nowadays "more" isn't used anymore. in most systems if you run "more", it actually uses "less" instead (more is symlinked to less). the original more couldn't go "up" direction in the text.

Very good series. I've watched them all. I liked how you showed the assembly language output of the compiler.

Absolutely brilliant! Only a handful of educators are capable of translating complex processes to this level of simplicity. Thank you, Mitch.

this part at 7:15 is simply what I was trying to understand for ages probably (not that I am not aware of boolean algebra but in practice) -as many said already: you really have this "thing" that makes you super teacher ;-)

Like "Bit-Banging"

I have watched many many many low level programming tutorials, but this series is better than all of the others by a few magnitutes.

at 5:00, might I suggest clearing bit 5 with 'PORTB &= 0b11011111' or 'PORTB &= ~0b00100000' instead? IMHO this makes the bit manipulation slightly more obvious to the future reader.

bro your content is Awesome! Having issues on programming attiny85 using arduino.The ADC analog read is not working properly I'm thinking arduino library isnt correct when it comes to the adc code parts.please help

PORTB^=(B11

This series of videos make me to see embedded system a simple one. Thanks for this.

This video just made it to my usefull µC Bookmark list :D. Thanks for the effort you put in!

Thank you bro👍 finally clear my all confusion about bit wais operation.

Just discovered your channel. Great stuff!

You described two ways to turn on bit 5. One is 1

These tutorials are so good! I keep coming back to these videos every time I need to implement more and more complicated things on microcontrollers

How it is possible that your "Bit-Banging" is not flagged by RU-vid algorithm as an adult content as it is case with one of my video about bit and byte banging necessary for chip AD9850?

when you compiled to assembly which you subsequently studied, you did not use -Os for size, but you typed -O1 .. at least in the video.

Have you tried to make 32 as variable and indicate it as PROGMEM? Is there any difference then?

I am loving these videos. I always thought the standard presentation of the arduinos was a bit "black box". I get it, it was targeted at makers, not high level programmers who wanted to dabble in lower level programming. but I never found it that satisfying to just download libraries and use the arduino IDE. I have a 7 segment display and a temperature sensor and my humble goal is to make a little thermometer without using the arduino IDE or libraries (I'll let myself use the AVR headers though)

ur seris is so cool , thank you so much!

thank you love it! please keep them coming!

Thankyou very much

The (1

bruh, your videos are literally a gold mine, you really demystified bare metal MCU for me, before i watched your videos i didn't know what happened after i write C code and upload it, it was a total Pandora box for me that i was scared to get into, but THIS! this makes it that much more exciting and easy to understand, you truly have a gift for teaching complex concepts using easy language! thanks a lot man! especially given the fact that i have looked to learn this information through other vids/courses, but there is always a problem of them using too specific examples and not explaining how to translate this knowledge to other processors/compilers and how to use the manuals to find all these necessary infos that you can implement for whichever processor you're using. you are amazing, thanks again Mitch

Fantastic ❤

Great videos.

Great videos! Your explanations on bitwise operators is well done. Would you mind sharing your slides? I'd love to have them for reference.

Thanks Mitch

Thanks for your video, that helped me a lot to understand the difference between the two methods, Cheers!

So goooood. I cant believe these videos dont have more views than they do.

Most Excellent! This deserves MUCH more views.

wow! Got to learn a lot of fundamentals. Thank you!

I generally prefer to use "0b00100000" rather than "(1

Thank You, great video!!!

Great tutorial, I’d love to see more on bit manipulation.

Tq bro very helpful ❤️😎

thanks for this series!

I don’t understand the point about sacrificing performance with “~(1

Thank you, I have really enjoyed this series, though I think it would benefit from one addition a make file video (no more cheat sheet needed).

when you're doing bitwise stuff, if you use hex instead of decimal it makes it a lot easier :) nice video! i came from a reddit post in r/embedded.