# Flip Flop Computer Architecture Help needed

#### fmalik

Joined Aug 20, 2016
7
I need solution of Flip Flops. Attachment of table we need to put answers.Can you make equations for this example.?

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#### joeyd999

Joined Jun 6, 2011
4,477
What you need, and what you'll get, are two different things. Be a sport, and show some work.

#### WBahn

Joined Mar 31, 2012
26,398
I need solution of Flip Flops. Attachment of table we need to put answers.Can you make equations for this example.?
Perhaps YOU might consider showing YOUR best attempt (or at least AN attempt) to solve YOUR homework.

Then we can see what you are doing right and what you are doing wrong and offer guidance.

#### fmalik

Joined Aug 20, 2016
7
I need Next state in table. If you provide me equation of above curcuit it will help me alot.

#### fmalik

Joined Aug 20, 2016
7
What you need, and what you'll get, are two different things. Be a sport, and show some work.
I need equation of above circuit. I'm trying to make but i'm confused.

#### joeyd999

Joined Jun 6, 2011
4,477
I need Next state in table. If you provide me equation of above curcuit it will help me alot.

#### fmalik

Joined Aug 20, 2016
7
I think if you provide me equation i can do it easily.

#### joeyd999

Joined Jun 6, 2011
4,477
I think if you provide me equation i can do it easily.
Yes. Easily. As in: no effort on your part.

That is, precisely, the point.

#### WBahn

Joined Mar 31, 2012
26,398
I need Next state in table. If you provide me equation of above curcuit it will help me alot.
That will not help you much at all. What will happen when you see a similar circuit on an exam? Will you tell the proctor to provide you with an equation?

Label all of the nodes in the diagram and then walk through the diagram figuring out what value each node will have for each possible combination of inputs and states.

#### fmalik

Joined Aug 20, 2016
7
That will not help you much at all. What will happen when you see a similar circuit on an exam? Will you tell the proctor to provide you with an equation?

Label all of the nodes in the diagram and then walk through the diagram figuring out what value each node will have for each possible combination of inputs and states.

J1 = A' Ex-OR B'
K1 = (XA) Ex-OR A

J2 = XB'
K2 = (X' + B) Ex-OR B

#### joeyd999

Joined Jun 6, 2011
4,477

J1 = A' Ex-OR B'
K1 = (XA) Ex-OR A

J2 = XB'
K2 = (X' + B) Ex-OR B
@WBahn, it's all yours. I don't have the patience of a saint -- like you.

#### WBahn

Joined Mar 31, 2012
26,398

J1 = A' Ex-OR B'
K1 = (XA) Ex-OR A

J2 = XB'
K2 = (X' + B) Ex-OR B
Thanks for the effort. Now let's look at them one at a time. Let's pick the simplest one, which would appear to be J2

You say

J2 = XB'

This means

J2 = (X)(B')

Is that what YOU meant?

If not, rework your equations keeping in mind that negation takes precedent over any of the binary operators.

None of the others are correct, though a couple of them are in the right direction. But you also seem to be confusing some of the signals.

Actually, the more I look at your equations, the more they seem almost random. For instance, why do you get something different for K1 than you got for J1?

I'll suggest it again -- label all of the nodes in the diagram and then work out the equations for each node in progression.

#### fmalik

Joined Aug 20, 2016
7
Thanks for the effort. Now let's look at them one at a time. Let's pick the simplest one, which would appear to be J2

You say

J2 = XB'

This means

J2 = (X)(B')

Is that what YOU meant?

If not, rework your equations keeping in mind that negation takes precedent over any of the binary operators.

None of the others are correct, though a couple of them are in the right direction. But you also seem to be confusing some of the signals.

Actually, the more I look at your equations, the more they seem almost random. For instance, why do you get something different for K1 than you got for J1?

I'll suggest it again -- label all of the nodes in the diagram and then work out the equations for each node in progression.
Thanks I tried again Now i labeled diagram .

J2 = (X)(B') yeah this is like that.

J1 = X Ex-OR A'
K1 = X Ex-OR B'
K2 = (X' + A') Ex-OR B

#### WBahn

Joined Mar 31, 2012
26,398

Look at the diagram. Do you see that J1 and K1 are connected to each other? If so, then how could your equations for J1 and K1 not be the same.

In order for me to see where you are going wrong, you need to SHOW how you got what you got.

Show the labeled diagram and then show your progression of equations for each node.

Otherwise the only thing I can tell you is that all four are wrong. I can't tell you WHY they are wrong ... until ... you ... show ... your ... work.

#### fmalik

Joined Aug 20, 2016
7

Look at the diagram. Do you see that J1 and K1 are connected to each other? If so, then how could your equations for J1 and K1 not be the same.

In order for me to see where you are going wrong, you need to SHOW how you got what you got.

Show the labeled diagram and then show your progression of equations for each node.

Otherwise the only thing I can tell you is that all four are wrong. I can't tell you WHY they are wrong ... until ... you ... show ... your ... work.

#### Attachments

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#### WBahn

Joined Mar 31, 2012
26,398
I didn't ask you to label the components -- it is assumed that everyone knows the different basic gate symbols.

I asked you to label the nodes.

Here, I'll do if for you: