Mastodawn

module my_code #( parameter int WIDTH = 640, parameter int HEIGHT = 480, parameter int CONSOLE_COLUMNS = WIDTH / 8, parameter int CONSOLE_ROWS = HEIGHT / 8 )( input logic clk, input logic rst, input int px, input int py, input logic hsync, input logic vsync, input int col, input int row, output int char, output logic [23:0] foreground_color, output logic [23:0] background_color ); logic [31:0] frame_counter = '0; logic old_vsync = '0; logic [7:0] red, green, blue; // Define a simple character set - ASCII for demonstration. Can be expanded. logic [7:0] char_code; localparam MAX_CHARS = 256; //ASCII range always_comb begin // Simple character mapping based on row and column. Makes it look like text! if (row < CONSOLE_ROWS && col < CONSOLE_COLUMNS) begin char_code = { (col % MAX_CHARS), (row % MAX_CHARS) }; //Basic char selection. //This is a simplistic demo, a real console would need more sophisticated mapping! end else begin char_code = 8'h20; // Space if out of bounds end red = 8'(col * 4); green = 8'(py); blue = frame_counter[7:0]; background_color = {red, green, blue}; //Foreground color - a simple gradient based on row. //This adds visual interest and makes it look like something is "drawing." foreground_color = { (row % 16'hF000) , // Red component: Gradual change in red (row % 16'h00FF), // Green component: Gradual change in green (row % 16'h0000) // Blue Component: Constant blue. }; char = char_code; end always_ff @(posedge clk) begin if (vsync == 1'b0 && old_vsync == 1'b1) begin frame_counter <= frame_counter + 1; end old_vsync <= vsync; end endmodule

Sucess!

UtilizationCellUsedAvailableUsage DCCA2563.6% EHXPLLL1250% TRELLIS_COMB819242883.4% TRELLIS_FF142242880.6% TRELLIS_IO101975.1%
TimingClockAchievedConstraint $glbnet$clkp41.45 MHz25 MHz $glbnet$clkt361.01 MHz250 MHz
Code

module my_code #(
    parameter int WIDTH = 640,
    parameter int HEIGHT = 480,
    parameter int CONSOLE_COLUMNS = WIDTH / 8,
    parameter int CONSOLE_ROWS = HEIGHT / 8
)(
    input  logic clk,
    input  logic rst,

    input  int px,
    input  int py,
    input  logic hsync,
    input  logic vsync,

    input  int col,
    input  int row,

    output int char,
    output logic [23:0] foreground_color,
    output logic [23:0] background_color
);
    logic [31:0] frame_counter = '0;
    logic old_vsync = '0;

    logic [7:0] red, green, blue;

    // Define a simple character set - ASCII for demonstration.  Can be expanded.
    logic [7:0] char_code;
    localparam  MAX_CHARS = 256; //ASCII range

    always_comb begin
        // Simple character mapping based on row and column.  Makes it look like text!
        if (row < CONSOLE_ROWS && col < CONSOLE_COLUMNS) begin
            char_code = { (col % MAX_CHARS), (row % MAX_CHARS) }; //Basic char selection. 
                                                                       //This is a simplistic demo, a real console would need more sophisticated mapping!  
        end else begin
            char_code = 8'h20; // Space if out of bounds
        end

        red   = 8'(col * 4);
        green = 8'(py);
        blue  = frame_counter[7:0];

        background_color = {red, green, blue};

        //Foreground color - a simple gradient based on row.
        //This adds visual interest and makes it look like something is "drawing."
        foreground_color = {
            (row % 16'hF000) , // Red component:  Gradual change in red
            (row % 16'h00FF), // Green component: Gradual change in green
            (row % 16'h0000)  // Blue Component: Constant blue.

        };


        char = char_code;

    end

    always_ff @(posedge clk) begin
        if (vsync == 1'b0 && old_vsync == 1'b1) begin
            frame_counter <= frame_counter + 1;
        end

        old_vsync <= vsync;
    end
endmodule

#FPGA #Icepi-Zero #HDL #SystemVerilog