Question: Design a elevator controller which operates in 7 floors. The controller has following specifications States IDLE: Lift is waiting for a call. MOVING _ UP:

Design a elevator controller which operates in

7

floors. The controller has following

specifications

States

IDLE: Lift is waiting for a call.

MOVING

_

UP: Lift is moving upwards.

MOVING

_

DOWN: Lift is moving downwards.

STOPPED

_

_

FLOOR: Lift has stopped at a floor.

DOOR

_

OPEN: Lift's doors are open.

Inputs:

Call Up: Call button pressed to go up

.

Call

_

Down: Call button pressed to go down.

Door

_

Open: Signal indicating the door is open.

Door

_

Closed: Signal indicating the door is closed.

Outputs:

Motor

_

Up: Signal to drive the motor upwards.

Motor

_

Down: Signal to drive the motor downwards.

Door

_

Open

_

Signal: Signal to open the door.

Door

_

_

Signal: Signal to close the door.

Draw the state diagram and write a Verilog code for the same.

Design a elevator controller which operates in 7

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