219 ENTC Lab 2:
Instructions: Now that you have had experience with program the Spartan 3E with simple digital logic you will now use your knowledge from class to program a seven segment display. You will use the truth table given in this document to develop your code and successfully implement the use of a seven segment display. This will be an exercise in making sure you pay attention to how you wire your circuit and an exercise in debugging if you run into an error. Before you plug in the seven segment display you will need to first POWER OFF the Spartan 3E. Refer to the Seven Segment Display Section below for information on how to plug in and use the Seven Segment Display. To successfully complete this lab you will have to complete these tasks in order. Out of the seven outputs you will create 3 SOP Circuits, 3 POS Circuits, and the last output is your choice. Create the whole circuit in LabVIEW and run the program. Connect your Outputs to LEDs as well as Expansion Connectors. Compare your results with the truth table in this document. Fix your errors. Once your results are correct ask the TA for a Seven Segment Display Module. Take note of the message the Seven Segment Display displays. Demo your work to the TA Truth Table:
Note: Output 0 is associated with Output A, 1 is associated with B, Output 2 is associated with C, and so on.
Question 1: Include in your lab report the message that the seven segment display displays. Question 2: Include in your lab report which outputs you chose for SOP and POS. Explain the reason why you SOP or POS for each output. Question 3: Is it important to choose SOP and POS circuits carefully? Seven Segment Display:
LED A Always turn off the Spartan 3E before connecting a peripheral. Once the Seven Segment display is inserted into the Spartan 3E you can now turn on the the Spartan 3E. Take note on how this device is inserted. Remember that the pins insert into expansion connectors. Each pin is labeled, AA, AB, AC, AD, AE, AF, and AG. In class you have learned how to implement seven segment displays. The labeling is the same for this module, just ignore the first A in the sequence.
Lab Report: Your lab reports are individual and you will be required to turn them in at the beginning of next lab. Lab reports should include some key areas. Cover Page Introduction Procedure Screen Shots, Truth Tables etc. Materials Used Problems, Questions, and Solutions Conclusion Attach any handwritten work Quality work is expected, all areas that have been listed must be met. Explain in detail.