I am very very new with VHDL,therefore there will be lots of newbie questions and posts.
I understood 2 to 1 mux,but not 4 to 1,
does this code make sense as im using a Cyclone II chip from Altera with 10 Switches and 4 Key Switches
This is my example given by altera
Instructions
1. Create a new Quartus II project for your circuit.
2. Create a Verilog module for the three-bit wide 5-to-1 multiplexer. Connect its select inputs to switches
SW17−15, and use the remaining 15 switches SW14−0 to provide the five 3-bit inputs U to Y . Connect the
SW switches to the red lights LEDR and connect the output M to the green lights LEDG2−0.
3. Include in your project the required pin assignments for the DE2 board. Compile the project.
4. Download the compiled circuit into the FPGA chip. Test the functionality of the three-bit wide 5-to-1
multiplexer by toggling the switches and observing the LEDs. Ensure that each of the inputs U to Y can be properly selected as the output M.
Does this code make sense?
entity chiong2 is
PORT( SW :IN STD_LOGIC_VECTOR (9 DOWNTO 0);
LEDR :OUT STD_LOGIC_VECTOR (1 DOWNTO 0);
A,B,C:IN STD_LOGIC_VECTOR (2 DOWNTO 0));
end chiong2;
architecture Behavior of chiong2 is
begin
chiong2_1: process (A,B,C)
begin
case SW is
when "000" => LEDR <= A;
when "001" => LEDR <= B;
when "010" => LEDR <= C;
LEDR <= SW(1);
LEDR <= SW(2);
LEDR <= SW(3);
end case;
end process chiong2_1;
end Behavior;
I understood 2 to 1 mux,but not 4 to 1,
does this code make sense as im using a Cyclone II chip from Altera with 10 Switches and 4 Key Switches
This is my example given by altera
Instructions
1. Create a new Quartus II project for your circuit.
2. Create a Verilog module for the three-bit wide 5-to-1 multiplexer. Connect its select inputs to switches
SW17−15, and use the remaining 15 switches SW14−0 to provide the five 3-bit inputs U to Y . Connect the
SW switches to the red lights LEDR and connect the output M to the green lights LEDG2−0.
3. Include in your project the required pin assignments for the DE2 board. Compile the project.
4. Download the compiled circuit into the FPGA chip. Test the functionality of the three-bit wide 5-to-1
multiplexer by toggling the switches and observing the LEDs. Ensure that each of the inputs U to Y can be properly selected as the output M.
Does this code make sense?
entity chiong2 is
PORT( SW :IN STD_LOGIC_VECTOR (9 DOWNTO 0);
LEDR :OUT STD_LOGIC_VECTOR (1 DOWNTO 0);
A,B,C:IN STD_LOGIC_VECTOR (2 DOWNTO 0));
end chiong2;
architecture Behavior of chiong2 is
begin
chiong2_1: process (A,B,C)
begin
case SW is
when "000" => LEDR <= A;
when "001" => LEDR <= B;
when "010" => LEDR <= C;
LEDR <= SW(1);
LEDR <= SW(2);
LEDR <= SW(3);
end case;
end process chiong2_1;
end Behavior;