Your K-maps are correct, but they are not consistent with the tables you have in JK1.jpg.

Your tables will work, but they are not optimal.

In your tables, whenever you need to go from 1->0 you have the JK=01 and when you want to go from 1->1 you have inputs as JK=10. Those will work, but they are more limiting that they need to be. If you are going from 1->0 you can either clear the output using JK=01 or you can toggle it using JK=11, so you can use JK=X1. Likewise, when you are going from 1->0 you can either set the output using JK=10 or hold it using JK=00, so you can use JK=X0. The latter is what your K-maps have. Why the inconsistency? If I were grading, you would lose points for employing "magical methods".

 

I'm not sure about magical methods. All I have done is put the
dont cares in the empty cells and done the groupings.

Im currently working on another d type circuit assignment
and will post it when I've finished it.

Do you know of a link here on this website so I can make some donations?

Appreciate you being here to help.

Thanks a lot.

 

Thanks very much for the advice. I'll get the software
Appreciate you being here to help. Thanks again.

 

I'm not sure about magical methods. All I have done is put the
dont cares in the empty cells and done the groupings.

I'm not talking about the empty cells. Your reasoning for filling those with don't cares is fine -- although for designs in the "real world" you can't be so cavalier, but you haven't been given enough information to do anything different.

Look at your JK1.jpg.

Look at the bottom two rows in the J2K2 column.

You have

Q2Q1Q0 = 100 => J2K2 = 10
Q2Q1Q0 = 101 => J2K2 = 01

Now look at your JK2.jpg.

Look at your K-maps for J2 and K2 for these entries. You have

Q2Q1Q0 = 100 => J2K2 = X0
Q2Q1Q0 = 101 => J2K2 = X1

Why the change? It's as if something magical happened.

 

I wud hav to allocate more time to this than I currently am which
Is difficult for me at the moment due to my work schedule. I have to
find the time.

Im studying electrical and electronics to become a technician and I do understand
I have to learn how things work.

I'll try and answer your questions when I finish my d type circuit due to the time on it.

 

I now have my my D-Type and i attach it for your viewing.
Your criticism welcome.
Thank you.

 

I haven't looked at your circuit, but your other stuff looks good. I think you have gotten a pretty good handle on it.