EEE$/$CSE $120$

Capstone Design Project

Task C$-1$: Planning the Synchronous Sequential Machines

$(5$ pts$)$ Interview at least $3$ stakeholders, but $3$ is preferred. Ask questions regarding the form, function, and features needed by potential customers for this design. Make sure to capture what the customer prefers from this type of solution, as well as what environment the customer plans to use this design. Summarize your findings here and document the names of who you interviewed.

$(5$ pts$)$ Please include a comment on why your automation adds value from multiple perspectives $($technological$,$ societal, financial, environmental, etc.$).($What value does this add? What is the type of customer for whom this is designed? Where is this most needed? What couldn't you do before?$)$

$(5$ nts$)$ It is allowable to continue to ask questions of stakeholders throughout the design process $($and is preferred of a conscientious engineer$).$ This can be done as you are designing, before you are designing if you need input and clarifications, or after you are done designing if you want feedback on improvements. Summarize any changes to your understanding or design based on the feedback you received during your initial interviews or continual interviews?

Task C$-2$: Document the Synchronous Sequential Machines

Design #$1$: $(2$ pts$)$ What assumptions did you make in the design of this machine?

$(3$ nts$)$ Create a state definition table here that describes in plain English what each state in your machine means and what binary values you have assigned to represent each state, inputs, and outputs.

$(12$ pts$)$ Shaw your state diagrams, state transition tables and your circuit planning work $($Karnaugh maps$/$equations$/$MUX$/$DEC$/$etc$.)$ used in your design process. $($You can do this by hand if you wish, do not show the full circuit schematic here.$)$

$(3pts)$ list your final design equations and required logic gates $($including types of Flip Flops$)$ needed to complete this circuit.

Design #$2$: $(2$ pts$)$ What assumptions did you make in the design of this machine?

$(3nts)$ Create a state definition table here that describes in plain English what each state in your machine means and what binary values you have assigned to represent each state.

$(12$ pts$)$ Show your state diagrams, state transition tables and your circuit planning work $($Karnaugh maps$/$equations$/$MUX$/$DEC$/$etc$)$ used in your design process. $($You can do this by hand if you wish, do not show the full circuit schematic here.$)$

$(3$ pts$)$ list your final design equations and required logic gates $($including types of Flip Flops$)$ needed to complete this circuit.

Task C$-3$: Determine Criteria and Weighting for Judging Your Designs

$(5$ pts$)$ Using the guidelines in the laboratory FAQ's, list your $5$ criteria and associated weights here used to help decide between the two design models $($weights should add to $100\%)$:

Criteria

Weight

Key Fob Project Summary

Read this entire specification carefully. Like a specification you will receive in industry, the information is spread out and not necessarily organized as you might expect. An important item might be buried in the middle of a paragraph where it is not expected. As you are responsible for meeting all the requirements, read this document slowly and carefully!

A car company has asked you to design the logic in the car to work with a new key fob. This is for a car they plan to introduce in the fall. The new fob works a bit differently than most.

If the key fob moves "far" from the car for two clocks, the car automatically locks.

If the car is unlocked, and the user presses the button on the fob, the car locks.

If the car is locked, and the user presses the button on the fob, the car unlocks.

Whenever the car unlocks, the lights flash for one clock.

Whenever the car locks, the horn beeps for one clock.

There are two inputs and three outputs:

Inputs:

S: $0$ means the fob is near the car; $1$ means the fob is "far" from the car.

B: $0$ means the fob button has not been pressed; $1$ means the fob button has been pressed.

Outputs:

H: $0$ means the horn does not honk; $1$ means the horn should honk

F: $0$ means the lights should not flash; $1$ means the lights should flash

L: $0$ means the car is unlocked, $1$ means the car is locked

You do NOT need to worry about the definition of "far" $-$ another engineering team is handling that.

Note that you design MUST have a minimum of $5$ states.

You will need to design two different state machines that satisfy the above requirements. Think about different ways they might be implemented. Suggestions include how to handle the fact that the button on the fob is pressed while the fob is far away. Does the car unlock? What happens if unlock and lock directives conflict?

Come up with ideas on how you'd like to design the system. Interview three different stake holders to discuss your ideas. Stake holders may be other students, TAs, UGTAs, or family members.