Digilent Inc Nexys Development Board CPE 169 Digital

Digilent Inc. Nexys Development Board CPE 169 Digital Design Laboratory

Instructional Objectives: • To learn about the features of the Digilent Development Board and the Xilinx Programmable Logic Device on it. Development Board. Digilent Nexys-2 Nexys Programmable Device Xilinx Spartan 3 E 3 FPGA

Nexys-2 Development Board Digital Logic Resources Xilinx Spartan 3 E FPGA 10476 equivalent logic cells (Overkill for us!!)

Nexys Development Board Digital Logic Resources Xilinx Spartan 3 FPGA 4320 equivalent logic cells (Plenty big!!)

Nexys-2 Development Board Power Sources / Configurations Power Switch Power Configuration Jumpers (USB)

Nexys Development Board Power Sources / Configurations For USB Power Configuration Jumpers Power Switch

Nexys-2 Development Board Programming Ports JTAG Port USB Port Program Mode Select Jumpers (JTAG)

Nexys Development Board Programming Ports JTAG Port USB Port

Nexys Development Board Clock Signal Generator Clock Frequency Jumper 25/ 50/ 100 MHz 100 MHz 25 MHz

Nexys / Nexys-2 Development Boards INPUTS 4 Pushbuttons 8 Slide Switches UP = 1 - high DOWN = 0 - low Buttons = 1 (high) when pressed

Nexys / Nexys-2 Development Boards OUTPUTS 8 LEDs Four 7 -segment LED Displays

Nexys Development Board External Circuit Expansion 5 Expansion Connectors (4 on Nexys-2)

Nexys-2 Block Diagram

Nexys Block Diagram

Available FREE Tools • Xilinx ISE Webpack (V 9. 1 i) (Requires registration with Xilinx) • Modelsim MXE-III Simulator (Requires License File (via email) http: //www. xilinx. com/webpack/classics/wpclassic/index. htm

Available FREE Tools Digilent Adept Suite (for programming Nexys Boards via USB) http: //www. digilentinc. com/Products/Detail. cfm? Nav. Top=2&Nav. Sub=69&Prod=ADEPT

The Lab Report should include the following: • Experiment Title, Date, Lab Partners Names • A brief statement of the purpose of the experiment • A brief description of each experiment section • Section title • Brief procedures (in your own words) • Description of circuits designed/tested during the experiment. • Titled with a descriptive name for the circuit • Brief verbal description of the circuit's function / purpose • Circuit schematic and/or block diagram as appropriate • Well-documented VHDL source code (later)

The Lab Report should include the following: • Description of testing procedures and Results • Tables of results (with Titles and column headings) • Annotated simulation results (later with VHDL) • Other items specifically requested in the Experiment procedures. (Be sure to include everything asked for!!) • Answers to all questions asked in the body of the experiment • A conclusion written by each group member • Both conclusions in the single report.

Conclusions Good Stuff • A brief description of what was accomplished in the experiment (1 -3 sentences). • Identify the key learnings or most helpful parts for you personally. • What are you able to “do” or “understand” better, as a result of the lab exercise? • A brief description of how the experiment relates to other experiments and/or topics discussed in CPE 129 course lecture.

Conclusions: Bad Stuff • Detailed descriptions of the procedure followed during the experiment. Not again please…Once is enough! • Detailed descriptions of the circuits designed or used during the experiment. Not againwhether please…Once is still • Comments regarding you liked theenough! experiment or not. We hope you do! But it doesn’t belong in your much Conclusions. • Comments regarding how you learned during the experiment. (“I learned a lot in this lab. …”) thatthe you will. • Comments that. We’re state assuming directly that experiment’s objectives were met. “ZZZZZ”