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One possible way to layout your gates and pins on the grid

  • The final step will be to connect all our components together. As previously mentioned, we can run wires directly between components or make wireless connections.
  • To make a wired connection, either select the orthogonal node tool or move your mouse over one of the ports on a symbol, the pointer should change to the look like the node tool. Then click and drag from the origin port to the port you wish to reach and release. Be careful not to intersect any other ports as this will cause them to be joined to the wire, although crossing over other wires will not create a connection. You can tell if a wire is connected to something by the large dot, the typical indicator of connections in circuit diagrams. Go ahead and connect up the inputs to the two AND gates so that they will function as the beginning of a MUX.

Possible circuit wiring for the first stage of the MUX

  • While this method is fairly straightforward, it has its disadvantages such as possible unintended connections and vast webs of wiring on more complicated circuits. We can simplify the process with wireless connections.
  • Unfortunately, you cannot directly name ports. Instead we will connect a small piece of wire to the ports and name this wire. Any wires on the grid which share the same name are connected together.
  • Begin by placing short bits of wire at all the remaining ports in the circuit. A length of one on the grid is sufficient though a length of two may be easier to work with. Once placed, right click on the wire and select properties.
  • Under the General tab you can enter a name for the selected wire. As with project names, Quartus won’t allow for spaces so either remove them or use underscores. To connect any other wire with this named one, simply repeat the procedure. Using this wireless method, connect the remainder of the MUX together.

Example wireless connections

  • The final step before we get to pin connections is to make sure our circuit is functional. On the left side of the screen is the Tasks menu where we can find a variety of commands to create a finished design file. Eventually we will want to compile our whole design, though for now we can simply go through the Anaylsis&Synthesis step. Double click on Analysis&Synthesis for Quartus to check over the circuit for any potential issues such as unconnected ports. If Quartus finds something wrong it will halt the process and display the error in the message box at the bottom of the screen.
An unsuccessful analysis&synthesis process due to an unconnected port

Defining i/o connections

  • Once we’ve successfully performed Analysis&Synthesis we are ready to move on to defining pin connections. In order to do this we first need to know the pin addresses of the input and output devices on our DE0 board. These can be found in the DE0 User Manual on pages 24-29, pages 27-32 of the PDF. For now we will only be looking at the switch and LED pin assignments.
  • For each entry in the assignment table, the signal name corresponds to the identifier printed on the board next to the relavent device and the pin name tells us where we should connect to in order to access that device.
  • To specify these connections we will use the Pin Planner located under Assignments->Pin Planner. By performing Analysis and Synthesis earlier, we gave Quartus information on how many I/O pins we had on our circuit diagram and what their names were. Now we just need to connect these with pins on the board. By putting in the name of a physical pin under the Location column in the Pin Planner, we tie that point on our board to the specified point on our circuit.
  • Although we’ll be using a particular pin layout here, you can setup your pin assignments in whatever way you feel works best for you. On future labs/projects pin layouts will already be setup so the labbies and in particular the project graders will be expecting a particular board setup and you should leave assignments as they are.
  • For this example we’ll use the rightmost slider switch, SW[0], for our select signal. Since we can see in the user manual that SW[0]is tied to PIN_J6, we simply type this, or even just J6 and it will fill in the name, into the Location column next to the “select” listing under the Node Name column. We’ll continue in this fashion, assigning “data1” to SW[1] at PIN_H5, “data2” to SW[2]at PN_H6, and assigning “out” to the rightmost LED, LEDG[0] at PIN_J1.

Questions & Answers

what is math number
Tric Reply
x-2y+3z=-3 2x-y+z=7 -x+3y-z=6
Sidiki Reply
Need help solving this problem (2/7)^-2
Simone Reply
what is the coefficient of -4×
Mehri Reply
the operation * is x * y =x + y/ 1+(x × y) show if the operation is commutative if x × y is not equal to -1
Alfred Reply
An investment account was opened with an initial deposit of $9,600 and earns 7.4% interest, compounded continuously. How much will the account be worth after 15 years?
Kala Reply
lim x to infinity e^1-e^-1/log(1+x)
given eccentricity and a point find the equiation
Moses Reply
12, 17, 22.... 25th term
Alexandra Reply
12, 17, 22.... 25th term
College algebra is really hard?
Shirleen Reply
Absolutely, for me. My problems with math started in First grade...involving a nun Sister Anastasia, bad vision, talking & getting expelled from Catholic school. When it comes to math I just can't focus and all I can hear is our family silverware banging and clanging on the pink Formica table.
I'm 13 and I understand it great
I am 1 year old but I can do it! 1+1=2 proof very hard for me though.
Not really they are just easy concepts which can be understood if you have great basics. I am 14 I understood them easily.
hi vedant can u help me with some assignments
find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
If f(x) = x-2 then, f(3) when 5f(x+1) 5((3-2)+1) 5(1+1) 5(2) 10
how do they get the third part x = (32)5/4
kinnecy Reply
make 5/4 into a mixed number, make that a decimal, and then multiply 32 by the decimal 5/4 turns out to be
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
okay, so you have 6 raised to the power of 2. what is that part of your answer
I don't understand what the A with approx sign and the boxed x mean
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
I'm not sure why it wrote it the other way
I got X =-6
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
oops. ignore that.
so you not have an equal sign anywhere in the original equation?
is it a question of log
I rally confuse this number And equations too I need exactly help
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
Commplementary angles
Idrissa Reply
im all ears I need to learn
right! what he said ⤴⤴⤴
greetings from Iran
salut. from Algeria
A soccer field is a rectangle 130 meters wide and 110 meters long. The coach asks players to run from one corner to the other corner diagonally across. What is that distance, to the nearest tenths place.
Kimberly Reply
Jeannette has $5 and $10 bills in her wallet. The number of fives is three more than six times the number of tens. Let t represent the number of tens. Write an expression for the number of fives.
August Reply
What is the expressiin for seven less than four times the number of nickels
Leonardo Reply
How do i figure this problem out.
how do you translate this in Algebraic Expressions
linda Reply
why surface tension is zero at critical temperature
I think if critical temperature denote high temperature then a liquid stats boils that time the water stats to evaporate so some moles of h2o to up and due to high temp the bonding break they have low density so it can be a reason
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Intro to computational engineering: elec 220 labs. OpenStax CNX. Mar 11, 2013 Download for free at http://cnx.org/content/col11405/1.2
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