SE-631

Real-Time System Design and Implementation

Lab Assignment  6    (Due Monday, April 9)

Create a project which controls the motion and lights of the train in the real-time lab according to the following requirements: 

1.   Initial position of the train:

a.  by the side of sensor 17, heading east, or

b.  by the side of sensor 24, heading east.

2.   Initialize all track switches to STRAIGHT in your code.

3.   The train starts at speed 5, lights off.

4.   The train keeps running at speed 5 until one of the four buttons is pushed.

1. If PB1 is pushed, the train should move towards and park in front of stopper S1.

2. If PB2 is pushed, the train should move towards and park in front of stopper S2.

3. If PB3 is pushed, the train should move towards and park in front of stopper S3.

4. If PB4 is pushed, the RR system should be shuttled down immediately.

         On the due day, each team needs to demo the project to the class in the lab.

Grading

To test your code, I will randomly park the train in one of the two positions, press PB1, PB2 and PB3 in a random order, and then press PB4. You will be awarded

	A, if all push buttons work as required,
	A-, if any three push buttons work,
	B+, if any two push buttons work, and
	B, if only one push button works.

Demo cutoff: 7:15 PM.