L18 – VHDL for other counters and controllers. Other counters More examples Gray Code counter Controlled counters Up down counter Ref: text Unit. - ppt download
Verilog Ripple Counter
Counter Design using verilog HDL - GeeksforGeeks
Verilog HDL: Gray-Code Counter Design Example | Intel
GitHub - ritvikgupta199/Verilog-Simulations: Simulation of Gray-Code Counter, Ring Counter, and Sequence Generator FSM
Gray Codes | Adventures in ASIC Digital Design | Page 2