Hello, I would like to create an up-down counter that can count from 0 to 9 using a chip like jk flip-flop.This counter is 0123456789123... In this way, 0 comes out only at the beginning and doesn't come out after that. What is the problem? Please, can anyone tell me, I would appreciate it.

 

Well, that complicates things, but only slightly.
Draw a truth table of all possible states of a 4-bit counter, i.e. 0 to 15.
In the columns to the right, show the next state, for example, 0 -> 1, 1 -> 2,. . . 9 -> 1.
Then draw the Karnaugh for each of the four bits.

 

Hello, I would like to create an up-down counter that can count from 0 to 9 using a chip like jk flip-flop.This counter is 0123456789123... In this way, 0 comes out only at the beginning and doesn't come out after that. What is the problem? Please, can anyone tell me, I would appreciate it.

Are you saying that you want it to include 0 each time and it isn't, or that the goal is for the zero to only be there initially?

The diagram you provided has poor enough resolution that I can't make out, for sure, some of the connections. Please take another screenshot with better resolution.

 

Imagine the marker or instructor for the course having to evaluate the circuit diagram submitted with no other other explanation. You would be lucky to be awarded a mark of 1 out of 10.