pdfcrowd.com open in browser PRO version Are you a developer? Try out the HTML to PDF API Home | People | Projects | Working in Eshop | Tutorials | EDG Links | EDG Status | Webmail EDG Quartus/Modelsim Tutorial This tutorial is for use with the Altera DE-nano boards. There are a number in the eshop. See Mary if you cannot find one. In this tutorial, we will program the DE-nano board, to be a simple 3 bit counter. The leds labelled led1, led2 and led3 will be the outputs. The values will change each time Button1 is pushed. Button4 works as a reset button. Here are the pin assignments for this board.
Transcript
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
Home | People | Projects | Working in Eshop | Tutorials | EDG Links | EDG Status | Webmail
EDG Quartus/Modelsim TutorialThis tutorial is for use with the Altera DE-nano boards. There are a number in the eshop. See Mary if you cannot find one.
In this tutorial, we will program the DE-nano board, to be a simple 3 bit counter. The leds labelled led1, led2 and led3 will be the outputs. The values will change each timeButton1 is pushed. Button4 works as a reset button.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
We need to place parts in our block diagram. Click the Symbol Tool (located next to the A in the top bar of the block diagram) to bring up the symbol window. Find the tff,you'll want to place three in your block diagram.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
Later, we are going to use Modelsim to simulate our project. So we need to tell Quartus to generate the files needed by Modelsim. Go to Assignments -> Settings and selectModelsim-Altera in the Tool name field. Do not check the "Run gate-level simulation automatically after compilation" box.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
USE IEEE.STD_LOGIC_1164.ALL;USE MAXII.MAXII_COMPONENTS.ALL;
-- Set up this testbench as an entityentity test_counter_3bit isend test_counter_3bit;
-- Create an implementation of the entity-- (May have several per entity)architecture testbench1 of test_counter_3bit is
-- Set up the signals on the 3bit_counter signal button1 : std_logic; signal button4 : std_logic; signal led1 : std_logic; signal led2 : std_logic; signal led3 : std_logic;
-- Set up the vcc signal as 1 signal vcc : std_logic := '1'; begin -- dut = device under test (same name as top project from Quartus) dut : entity work.counter_3bit -- Map the ports from the dut to this testbench port map ( button1 => button1, button4 => button4, led1 => led1, led2 => led2, led3 => led3 ); -- Set up the signals stimulus : process is begin -- Just make a clock on button1 to simulate pushing the button loop button1 <= '0'; wait for 10 ns; button1 <= '1'; wait for 10 ns; end loop; end process stimulus;end architecture testbench1;
Now, we must compile this testbench into our work library. Same as before, pick Compile and select this file, here saved as test_counter_3bit.vhd.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
Double-click on the testbench (test_counter_3bit) to start simulating. A number of windows will open. You can close the testbench text editor. The window should looksomething like this.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
Click the Run Simulation button to run the simulation for 100ps. This is going to be much too short, so change the length to 10000 ps and click run. You'll then have to playaround with the zoom on the window to get it so that you can see the clock and the results.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
You'll have to look very closely at your output to see that things are actually working as expected. You also should do much, much more simulating that what is here. This isjust to show you how things actually work. At this point, I'm assuming that everything works as expected and we now want to program our chip. Quit Modelsim.
Programming the ChipBack in Quartus, we will program the chip. Before plugging the DEnano board in, check the settings on the jumpers circled below. One needs to be up and two needs to bedown to be able to program the chip.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
If the USB-Blaster[USB-0] is not showing in the Hardware Setup, click on that button and select it. If you cannot find it, let Mary know so that the driver can be installed inWindows.
Check the boxes under Program/Configure and then click the Start button.
pdfcrowd.comopen in browser PRO version Are you a developer? Try out the HTML to PDF API
While programming, all lights except the blue power and load buttons should go off. It will take a minute or two for the program to upload. When it's finished, try clickingbutton1 and button4 and see if things work as expected.
Electronics Design Group | ACC - 121-129 | 5620 S Ellis Ave | Chicago IL 60637 | +1-773-702-7801
