How to design a synchronous counter 4 bit using JK flip flop that can count up even numbers from 0 to 14, and count down odd numbers from 15 to 0 in 1 system - Quora
Ripple Counter - Circuit Diagram, Timing Diagram, and Applications
2 bit counter JK flip flop | Tinkercad
verilog - Synchronous Counter using JK flip-flop not behaves as expected - Stack Overflow
Solved Design a 2-bit counter using JK-Flip flops with one | Chegg.com
Synchronous counter
CSO Lab 3: 2-bit Synchronous Counter JK Flip-flop | Tinkercad