LAB $10$

Part$($A$)$ : $(50$ pts$)$ Implement a $4-$bit$-$binary$-$to$-$decimal converter on an FPGA board. Use input

switches for a binary input. The corresponding decimal number should be displayed on a $7-$segment

display. For example, an input of $\text{'}1110\text{'}$ should be displayed as $\text{'}0014\text{'}$ on the display. Figure $1$ shows the

blocks and input$/$output ports that are needed for this assignment.

A 'Constant' block gives an output of $\text{'}0\text{'}$ or $\text{'}1\text{'}$ either as a single bit or as a vector. This is used to

give a fixed input.

$74185$ is a binary$-$to$-$BCD converter chip.

A 'Concat' block concatenates multiple vectors and single bits into one large vector.

A 'sec$7$display' block is a BCD$-$to$-$seven$-$segment decoder. $x_1$ input takes the $16-$bit BCD input.

Connect a reset input to its reset and a clock $($clk$)$ signal to its clk$.$ Examine the effect of reset

after programming the board. an$[3$:$0],$ seg$[6$:$0],$ and dp are used in the constraint file.

Note: Do not forget to activate the necessary ports in the constraint $(.$xdc$)$ file.

Figure $1.$ Blocks and I$/$O ports needed for a $4-$bit$-$binary$-$to$-$decimal converter.