‫Welcome to the barrel shifter lab set up are going to show you how to set up the 7:7 display and switches
‫to be used with the barrel shifter Lab..
‫I have four digit seven segment display which is the same 772 display we've used for the binary code
‫decimal display linear feedback's shift register and the potentiometer interface.
‫We have seven of the 56 ohm resistors that we are pouring from each of the different segments on the
‫7st and sleigh which we then feed back to the FPGA we are interfacing with.
‫And we also have four different digit selects which will be used to select each one of the digits on
‫the four digit seven segment display.
‫And we have 2 and 3 9 4 transistors with a 470 ohm resistor connected to the base of the transistor
‫which we then feed back into the FPGA which is used to toggle through and multiplexed the different
‫7 segment each segment.
‫We also have two switches that we need to use now depending upon the type of board you're using if you're
‫using the arty or the Arty's you 7 you will need to connect a few extra switches onto the breadboard
‫with the Arti.
‫You'll need two extra switches with the RTC 7.
‫You will need three.
‫However if you use a board such as the basis three there's enough switches onboard that you don't have
‫to have any switches connected on your breadboard as well as the seven segment display.
‫So depending on the FPGA board you're using but if you're using one that doesn't have an onboard 7 display
‫or enough on board switches you don't need to connect them up like so in the switches.
‫I have one side is tied to ground.
‫The other side is tied to your high voltage or 3.3 volts and then the output which is the center pin
‫is fed back into.
‫PJ Development Board and that is the barrel shifter set up.