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Altera_Forum's avatar
Altera_Forum
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16 years ago

FPGA programma

Hallo.

In the line: assign is something wrong. What is the right way for this line?

Thanks.

JackR.

module Lab3 (s ,x ,y ,m );

input s; //[1:0] s; werkt niet.Geeft s,s0 en s1

input [7:0] x;

input [7:0] y;

output [7:0] m;

assign m [7:0] = (~s&x)|(s&y) [7:0], x [7:0], y [7:0];

endmodule

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Whitout some explanations on how it is supposed to work (what should it do) it's very difficult to guess what you want.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Hallo amilcar.

    Thanks for the replay. It is for a eight-bit wide 2 to 1 multiplexer.

    Figure 3. An eight-bit wide 2-to-1 multiplexer.

    1. Create a new Quartus II project for your circuit.

    2. Include your Verilog file for the eight-bit wide 2-to-1 multiplexer in your project. Use switch sw 17 on the

    DE2 board as the s input, switches sw7−0 as the x input and sw15−8 as the y input. Connect the sw

    switches to the red lights ledr and connect the outputm to the green lights ledg7−0.

    3. Include in your project the required pin assignments for the DE2 board. As discussed in Part I, these

    assignments ensure that the input ports of your Verilog code will use the pins on the Cyclone II FPGA

    that are connected to the sw switches, and the output ports of your Verilog code will use the FPGA pins

    connected to the ledr and ledg lights.

    4. Compile the project.

    5. Download the compiled circuit into the FPGA chip. Test the functionality of the eight-bit wide 2-to-1

    multiplexer by toggling the switch.

    Hope this wil help.

    Thanks,

    JackR.