‫Welcome to the lab set up for the BCT display and linear feedback shift register.
‫This set up will be used for both labs if you have a PGA board such as the bases two or bases three
‫that already contains a four digit seven segment display.
‫You will not have to set up a display on a breadboard.
‫You can use that display located on your board.
‫However if you're using already or the order of the 7 as I am in this course you will need to have an
‫external 7:07 display set up a show for the setup.
‫We have the four digit seven segment display where we then have 8 outputs that were tying back to our
‫FPGA and we're tying these back through a 56 ohm resistor.
‫We also have sensors for different digits.
‫We have four digit select signals that we are controlling with the FPGA.
‫However we're using a 2 and 39-A for transistor with a 470 ohm resistor connected to the base used to
‫control each of the different digits.
‫And we have an external I'm using an Arduino board but an external source to power the 3.3 volts used
‫to power the 7 segment display.
‫And so with these different with the different digit select signals you're going to take and tie those
‫back into your FPGA board using either a Piedmont port or any type of pin you can connect to.
‫And that's what we use to select the different digits on a seven Sigma display we're using to light
‫up.
‫Then we also have the out seven signals we're reading back.
‫We're going to select which of the individual segments on the 7 segment display are lit up and so that
‫is the lab set up for the binary code decimal display in a linear feedback shift register.