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Homework answers / question archive / NJIT ECE 495 © Edwin Hou Experiment 5 • Familiarize with VHDL components usage • Structural design, port map statement, schematic design NJIT ECE 495 © Edwin Hou Part 1 • Create a seven segment decoder that can display the characters ‘A’ , ‘C’ , ‘E’ , ‘H’ , ‘L’ , ‘O’ , ‘S’, blank C2C1C0 Char Display 000 H 001 E 010 L 011 A 100 C 101 O 110 S 111 blank char_decoder -- char_decoder
NJIT ECE 495 © Edwin Hou Experiment 5 • Familiarize with VHDL components usage • Structural design, port map statement, schematic design NJIT ECE 495 © Edwin Hou Part 1 • Create a seven segment decoder that can display the characters ‘A’ , ‘C’ , ‘E’ , ‘H’ , ‘L’ , ‘O’ , ‘S’, blank C2C1C0 Char Display 000 H 001 E 010 L 011 A 100 C 101 O 110 S 111 blank char_decoder -- char_decoder.vhd -- entity char_decoder is port (code: in std_logic_vector(2 downto 0); segments: out std_logic_vector(0 to 6)); end char_decoder ; architecture behavior of char_decoder is begin process(code) begin case code is when “000” => segments segments New • Select Block Diagram/Schematic File • Enter file name, save with extension .bdf • Brings up Graphics Editor Window NJIT ECE 495 © Edwin Hou Graphics Editor Window • Click on icon to bring up library of circuit elements. • Insert circuit elements and connect them according to the design. • Compile and program. NJIT ECE 495 © Edwin Hou Part 5 • Using Part 3 and 4 as components. Connect the modulus-6 counter to the mux select in part 3, so that it would automatically rotate the display left. (Use a delay on the clock) NJIT ECE 495 © Edwin Hou Prelab • Block diagram for Part 3. For example, your block diagram should look like this: Part 4
