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January 11, 2017
In this tutorial, we will show you how you capture the schematic design for the automatic door opener circuit using Altera Quartus II software.
We are designing a circuit for an automatic door like those you see at supermarkets. The door should open only when a person is detected walking through or when a person presses a switch (such as the wheelchair button) to have the door open. The door should only operate if it has been unlocked.
While working in the lab, you will want to work from a flash drive or your I: drive account.You have to be careful if you use the C: drive for your work, for a couple of reasons:
If you do that then you will need to copy your directory to your I:
at the end when you are
Each time you create a new project in Quartus II, create a new project directory so that all of the files for each project are in one place and not mixed up with files from other projects.
Launch the Altera Quartus software. You should see a screen such as this:
Always start by creating a new project first, and then create a BDF file. Do not start by creating a BDF file.
Select the File → New Project Wizard; a window like the following will appear.
To select the working directory use the button to browse and
For each project you create in Quartus, create a new folder, and make sure all of the files for that project are in that folder.
Name the project DoorOpener. (Note that the next field gets filled in automatically.) Select Finish.
Don't uses spaces in file or directory names.
Select File → New - A window as seen in the following picture will open.
Select 'Block Diagram/Schematic File' and press OK.
This should open a pane where you will design your circuit. This pane is designated Block1.bdf. Save this graphic design file as DoorOpener in your "intro" directory. The file will be given the bdf extension; bdf stands for block design file and contains schematics, symbols or block diagrams.
The Symbol dialog box will appear. This window lists the available Altera libraries as seen in this image.
Repeat these steps to enter an OR (or2) gate and a NOT (not) gate.
(If you wanted to add multiple NOT gates, you could select the Repeat-insert mode box.)
In the same manner that you placed a gate onto the palette, add three input pins and one output pin from the Symbol libraries. Input pins can be found under primitives | pin | inputs. Output pins can be found under primitives | pin | outputs.
Name your input and output pins as you name them in your equation. Double
click on the pin name to change its name.
Never use spaces in pin names; e.g. "input 1" is a problem - "input1" and "input_1" are ok.
Rearrange your devices in approximately the placement you would like for the logic diagram you are trying to construct. You can move a component by selecting it with your mouse, holding down the left button and moving it to another location on the palette.
Save your design. It is a good
idea to save your design often, just in case something bad happens .
Save the bdf file with the same name as the project.
Don't use spaces in any file names.
Select the orthogonal node tool. Place your pointer on the output of one of the input pins and hold the left mouse button down. You should see a cross-hairs or + appear at the output.
Drag your pointer to the input of the AND gate. Every time you release the
mouse key, the line (wire) ends. If your wire did not reach the AND gate, you
can add to the wire by putting your mouse over an end of the wire and again
selecting it with your left mouse button and dragging your mouse to another
Don't run wires along the edge of a device. This can cause simulation problems.
Don't leave inputs and outputs right next to the chips. Make sure you can actually see some wire between them, otherwise you may have simulation problems.
Note: Make sure you do not make the wire too long. If you drag it too far you will see an x; and this is considered an open connection and your design will not compile.
To delete a wire or a portion of a wire, simply click on it (it should change color to indicate selection) and press the delete key.
If wires are connected to the component as you are moving it, the wires will drag and stay connected to the component. This is referred to as "rubber banding" and is a feature of all major schematic entry design packages. (You can turn rubberbanding on and off using the rubberbanding tool. )Add the rest of the wires needed to connect the logic diagram.
The window should look something like image below. Save your design.
We will not print today. But you will need to know how for your project.
To print, go to File | Print. If you want to change what appears on the printout or how it appears, go to File | Page Setup change print settings. Before printing, you can view what the print will look like by selecting File | Print Preview
The programmable device which we'll use for our design can be chosen now.
Select Assignments | Device from the pull-down menu.
Select MAX7000S from the "Family" pull-down list. Select the "Specific device selected" and then choose EPM7064SLC44-10, which is the device we are using in our lab. Select "OK."
If you get a message like this, don't worry; it's fine.
You will need to compile your design to ensure you do not have any errors in your circuit (e.g. you do not have any open connections, etc.)
Click on Processing | Start Compilation to start compilation.
If you get any error messages, you'll need to fix your circuit before you can simulate it.
If you have one of these issues, you need to fix it.
Note: If you haven't chosen a Cyclone device, the Quartus II Simulator option will be greyed out. In that case, assign the device to any Cyclone II device and recompile.
This part of the output shows that when the inputs are all zero, the output is also zero.
This part of the output shows that when c and h are low, and p is high, the output is high.
This part of the output shows that when c and p are low, and h is high, the output is also high.
You can repeat this process to check all of the eight possible input combinations.
Demonstrate the circuit to the lab demonstrator.
After Quartuss II is closed, if you worked on the C: drive, then be sure to copy your directory to the E: drive or to the I: drive. You'll use this project for future labs.
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