I have built a circuit with two switches this time I was ask

I have built a circuit with two switches, this time I was asked to build it with one switch. (more info if needed -> https://drive.google.com/open?id=0BypOVqtgYaVXWURzd2lheHdCbzA)

Make it easy to read please.

Design a circuit that accomplishes these tasks using a single debounced momentary contact button. The button is a simple normally-open two-terminal switch (that is, the terminals are normally disconnected, when you push the button, they close, and when you release, they open again). The debouncing circuit simply makes the button edges clean Every time you press the button, the stop watch should change its state: START, STOP, RESET, START, STOP, RESET,. signal itself so that the RESET changes to COUNT when you let go of the button. A block diagram of the circuit is shown below The RESET state should be gated with the button +5 V RESETICOUNTTo RESET pins Your circuit STARTISTOP To CPo Debounced button 10Hz CLOCK Draw your circuit showing all gates and flip-flops that you use. You do not need to draw the stopwatch circuit itself or the debouncing circuit for the button; just show what goes into the box labeled \"Your circuit.\" (Hint: Think of a state machine.) Demonstrate that your circuit works by providing a timing diagram. Be careful that your circuit does indeed have correct timing so that you do not, for example, inadvertently CLEAR the counter with a START

Solution

your design is good and the modification you required is quite easy... please attach only single inverter here in place of any one switch because when you use the input it can be used in both cases and you can use only the inverter as a switch here try it once..... the logic will be help you for sure...