Hey man, just thought I'd leave a suggestion. There are related links on the side bar, but it would be really useful if you put related videos in your about section. I was looking for this video(the followup to the video about state diagrams), but I had to take a really convoluted path to find it. Love the information though, you're really helping me understand the concepts.
5 years later and I wonder the same thing: Why isnt the excitation table used here? EDIT: Never mind. I did the excitation table and the resulting table for each flip flop is the same as the Next State tables. So you can just use the Next State table entries directly, which is a property of the D flip flop (D = Q on the next clock cycle). Also from here: www.allaboutcircuits.com/textbook/digital/chpt-11/finite-state-machines/, it states "For the D - Flip Flop this is easy: The necessary input is equal to the Next State."
that moment when you become an "expert" in digital logic because the teacher is so cute and you keep on watching his videos just to see him ... and you learn unconsciously. This is meant to be a compliment but it kinda just sounds like i'm stupid *sigh*
There are four possible states. With N flip-flops, you can represent 2^N different states. 2^2=4 so therefore you need two flip-flops. If I had seven states, I would need three flip-flops because two flip-flops can only represent four states and isn't enough. Three flip-flops can represent eight states and is enough to represent seven states. Keep in mind that if you have unused states, that the unused state must make it back into the main sequence in the even that there is a glitch.
I really liked your video and I thought that you did a great job. However, I would like to point out a small mistake on your output k-map. You had A'B' + AB which is exclusive-NOR and could have been rewritten/minimized as (A exclusive-NOR B)' + InA
Dalal Alghomlas Thatd be incorrect anyway. Think about it, if you have a karnaugh map with three variables, and you circle two 1's, you will only have 2 variables in that expression. The only time you will have a variable expression such as InAB', will be when its a lone 1
you may be asking why he chose D flip flop you can choose j k flip flop t flip flop and even r s flip flop but D is simplest of all since he said it acts as a delay and gives u same input to the output using one clock cycle.
Oh reminds me of the 1980s when our lecturer said *"...I want you to design a traffic light controller using JK flip flops and logic gates..."* Easy enough I thought until you try to do it which involves lots of truth tables, Karhaugh maps etc 😂
+Suman Sudha Actually, he did not specify whether it was a Mealy or Moore machine, so output very well could be a function of the input in this case (Mealy machine).
explained it better in 9 minutes than my prof in half a semester
yo my man, you are the sole reason I am passing my intro to computer hardware class God Bless
Thanks you. This has been much more helpful than anything my teacher has show us.
I wish you drew the whole thing. Thank you for the video it helped to better understand this material
passed the ball well enough
this video took me 2 minutes to find and was immensely helpful thank you!
Dude this video just saved my ass for a homework assignment about this exact subject! Thanks for the clear explanation!!
This saved my ass. I have a test coming up and in 10 minutes I understand what the teacher tried to teach in an hour. Good job.
This covers what my prof's lectures cover but faster. Nice!
Grande mi colega, muy util, recomendable 100%. Un saludo desde Granada maquina!
thank you so much for that karnaugh map demonstration. really helped me on my digital system course
are we not going to recognize the fact that hes not only left handed but writing everything backwards???? wtf this guy is amazing
just realized he probs just flipped the vod
your videos are better than neso academys.keep up the good work
nah
@@romuloyloy129 you are an idiot...
nah
Thank you. You are my inspiration.
Hey man, just thought I'd leave a suggestion. There are related links on the side bar, but it would be really useful if you put related videos in your about section. I was looking for this video(the followup to the video about state diagrams), but I had to take a really convoluted path to find it. Love the information though, you're really helping me understand the concepts.
You can find the master index at www.robotbrigade.com/digitalLogic.php
why the excitation table of D flip flop doesn't considered?
but with JK flip flop, the excitation table is used.
why?
5 years later and I wonder the same thing: Why isnt the excitation table used here?
EDIT: Never mind. I did the excitation table and the resulting table for each flip flop is the same as the Next State tables. So you can just use the Next State table entries directly, which is a property of the D flip flop (D = Q on the next clock cycle). Also from here: www.allaboutcircuits.com/textbook/digital/chpt-11/finite-state-machines/, it states "For the D - Flip Flop this is easy: The necessary input is equal to the Next State."
Thank you very much. Your work is awesome👏👏
Allahina kurban senin sayende konuyu anladim.Thank you very much.This Stuff is pretty good.I understand at last.
Where you implement the In in the circuit?
is input when D =1? i don't know what the input is since it never got connected
Thank you sir..well done
Very good video, but just to add: For the formula of OUT, instead of A'B'+AB+InA, you should use A(XNOR)B+InA
good video, but I struggled linking my MIN SOP of the K map to my circuit implementation.
thank you! It was very useful for me!
that moment when you become an "expert" in digital logic because the teacher is so cute and you keep on watching his videos just to see him ... and you learn unconsciously. This is meant to be a compliment but it kinda just sounds like i'm stupid *sigh*
this is pretty helpful to me. Thanks a lot !!!!!!!!!!!!!!!!!!
10/10 great video
There are four possible states. With N flip-flops, you can represent 2^N different states. 2^2=4 so therefore you need two flip-flops. If I had seven states, I would need three flip-flops because two flip-flops can only represent four states and isn't enough. Three flip-flops can represent eight states and is enough to represent seven states. Keep in mind that if you have unused states, that the unused state must make it back into the main sequence in the even that there is a glitch.
I can't find the video from which you made your next state tables :(
Thank you!
How did you find what the next states are?
it's based on the previous video's state diagram
I really liked your video and I thought that you did a great job. However, I would like to point out a small mistake on your output k-map. You had A'B' + AB which is exclusive-NOR and could have been rewritten/minimized as (A exclusive-NOR B)' + InA
How high do you have to be, to be able to solve these lol
very
im high and im studying for my exam tomorrow ;?///
Not at all, you're just dumb
in the output why did u wrote A'B' + AB + InA instade of A'B' + AB + InAB' ?
Dalal Alghomlas Thatd be incorrect anyway. Think about it, if you have a karnaugh map with three variables, and you circle two 1's, you will only have 2 variables in that expression. The only time you will have a variable expression such as InAB', will be when its a lone 1
you may be asking why he chose D flip flop you can choose j k flip flop t flip flop and even r s flip flop but D is simplest of all since he said it acts as a delay and gives u same input to the output using one clock cycle.
Writing mirrored - nice.
i want the problem the other way around use state machine to get d flip flops
Oh reminds me of the 1980s when our lecturer said *"...I want you to design a traffic light controller using JK flip flops and logic gates..."*
Easy enough I thought until you try to do it which involves lots of truth tables, Karhaugh maps etc 😂
Great !
Thanks :)
out+ shouldn't be A'B'+AB+inB' ?
+Martin Pesevski same
They are equivalent.
thanks!
I understand it thanks
I dont think the output equation is correct because it will appear 1-hazzard.
u such a Iegend
Hey Jack. You should check out the masculine geek youtube channel. I love them and relate to them dearly.
output is not a funtion of input. its mealy machine. why did you take input to find the equation for the output?
+Suman Sudha Actually, he did not specify whether it was a Mealy or Moore machine, so output very well could be a function of the input in this case (Mealy machine).
He looks like David Tennant.
hello
He's super cute though??
millasvs i knew i am not the only one :D
i totally agree
Is he backward writing?
Vuyani DawetiHe writes normally but flips the video I believe.
RIP
double D's