Assembly via Arduino (part 1) - Introduction

Link to code:

[dlcy]

Awesome! Thank you for sharing your knowledge and present it in such a nice way

[tobiaspetrick]

Hello. I just want to say thank you very much for explaining assembly on arduino in such a step by step manner. This really helped me a lot. Thank you

[emoutraspalavras-marloncou]

Thank you so much for the great lesson. I hope you come back to those videos to work within I2C for the LCR, Oled, TFT displays, MCU6050, HMC5883L, SPI communication, USART, atmega timers, interrupt service, and other creative projects! I love the way you edit the videos, it is a pleasure watch them and code at home following them. There is a small mistake in the second part of this one, in the very beginning when you "SBI DDRB, 4" you comment as it being PB5 (D12) but it is PB4, according to your second video with the RGB led. Keep up the good work. And the videos about writing libraries are awesome. Also connecting Atmega to an esp32, or esp8266 in assembly would be a wonderful lesson!

[neh]

I'm going to be tested on this and forget about teaching, my teacher hasn't even bothered to explain anything besides that this exists. Thank you so much!

[mehmetaltinsoy]

Tebrikler. Assembly konusunda çok güzel bir kaynak.

[Ragnemalm]

I wondered, can you program an Arduino in assembly without a clumsy Windows-only system? A first, the Internet's answer was no. Then I found this. Not only showing how, but a whole course! Amazing! I just hope I can find the time to try this out!

[keithdumbell]

I have found the information here to be exceptionally useful - thank you.
I did encounter one difficulty which might affect others:
when using the SBI and CBI instructions in the assembly the address came back out of range and I had to use the lower address 0x04 in place of DDRB and 0x05 in place of PORTB.

[kroome]

thank you for sharing, GREAT !!! i learn how to optimize the memory with fast execution...

[ArduinoFarsi]

Hi Master
Thank you for your good training
In this tutorial, you said that when we give input to the led function, it is stored in R24.
So now I have two questions:
1- Is the R24 register always used in entering functions or are there other registers?
2- Can we have more than one entry for functions or not?
Thank you very much for your response

[photonemittance]

The lil confusing "PB5" located on the pinMode in commentary > set bit 4 of address DDRB to 1 = set PB4/D12 as output

[Dtspoon]

how and in what registers are bytes or variables passed from c code to functions in assembly? in your example you pass a byte to the function and it is found in r24, how do you determine in which registers this input data to the functions and also any outputs of the routines end up?

[crimsonfist]

Hello, i have been following along, my goal is to understand well enough how to communicate from and to my 8051 busy bee micro using i2c. in a later video you talk about the i2c protocol and imma go through each vid and try and get good. i have some questions if you dont mind.. 1) @6:06 how is the byte value of 1 passed from the function led to in Register 24? 2) does the zero flag in the status register not have to be cleared after it has been set by the CPI instruction? or does it not matter because a new CPI will be used that will override the value in that register?... two different micros but i also have AVR arduino micro also and i figured it cant hurt to deepen my understanding of these devices. TY for your time!

[sumeetchaudhary]

Hello Anas, your code works for me. Howevr, I had one question I was looking through the datasheet and couldnt find information about r24. How did you come to know that R24 is the place where the caller would store its values. Also if I have more than one caller where would i store the rest of the values?

[niltondc]

Can I always use R24 to pass parameters to ASM? Thank you so much for sharing your knowledge. I make Assembly programs for the 8051. I'm trying to learn AVR assembly (Arduino), but there is little information on the web. I discovered your channel yesterday, I'm following your excellent tutorials.

[RishavRaj-knnm]

Hi Sir!! Amazing Lecture Sir.
I want to create 2 delay functions, the first function should work like delay(200) and second should work like delay(5000).For that what should be the value of counter for inner and outer loop?? Can someone please tell

[sumeetchaudhary]

Hello Anas, Thank you so much for the good work. Do you have any parts list that one needs to purchase in order to follow the beautiful playlist that you have created

[isaacmurray]

Hello, I followed the tutorial and loved it, I was hoping to know a couple things:
1) do we need the c file or is that just to slowly introduced a transition from c to assembly?
2) I have the exact dame code as you, except I’m using pin 13 instead of 12, and my led is solid, are the inner and outer loops running faster than I can see and this it stays on?

[dihanmdnuruddinhasan]

How to add avr/io.h in the Arduino IDE ? it shows missing.
thanks

[petermccool]

I watched this out of curiosity as you had mentioned in another post that you were doing assy.
My main question is why?
Have you built a project using the ATMEGA328 that directed you into using assy due to memory limitations or timing constraints?

[noel]

5:55 how do you know it is R24? Can you control which register hold the parameter? Or is it always the same?