DE1 VGA help!

[Altera_Forum]

So far i've got this - I've looked at sample code, but I'm kinda stuck atm 

just won't work - any ideas? Thanks!!  In verilog~   /////////////////////////////////////////////////////////////////////////////////  // VGA Controller  /////////////////////////////////////////////////////////////////////////////////      always @(posedge CLOCK_50) begin  if (count1 == 0) begin  ledcounter = ledcounter+1;  end    count1 = count1+1;    //divide by 2 = 25 MHz  if (count == 1) begin  count = 0;  end  else begin  refreshHVGA();  refreshVVGA();   count = 1;  end  end     // Horizontal  // 96 Sync  // 48 Back Porch  // 640 Pixel  // 16 Front Porch  // 800 total  task refreshHVGA;  begin     //Reset  if (h_cnt == 800) begin  h_cnt = 0;  v_cnt = v_cnt+1;   end    if (h_cnt == 0) begin  //Sync (96 cycles)  vga_h_sync = 0;  p_flag = 0;  end  else if (h_cnt == 96) begin  //Back Porch B (48 cycles)  vga_h_sync = 1;   end  else if(h_cnt == 144) begin  //Display Interval C (640 cycles)    if(v_flag) begin  //RGB Row On  //get from BMP file    red = 255;  green = 0;  blue = 0;  end    end  else if (h_cnt == 784) begin  //Front Porch D (0.6 us)  //set output to 0  red = 0;  green = 0;  blue = 0;  end    h_cnt = h_cnt+1;  end  endtask   // Vertical  // 2 Sync  // 33 Front Porch  // 480 Video Lines  // 10 Back Porch   // 525 Lines total  task refreshVVGA;  begin  //Reset  if (v_cnt == 525) begin  v_cnt = 0;  end    if (v_cnt == 0) begin  //Sync A (2 lines)  vga_v_sync = 0;  end  else if (v_cnt == 2) begin  //Back Porch B (33 lines)  vga_v_sync = 1;  end  else if (v_cnt == 35) begin  //Display Interval C (480 lines)  //wait for horizontal to do it's job   v_flag = 1;  end  else if (v_cnt == 515) begin  //Front Porch D (10 lines)    v_flag = 0;  end  end  endtask endmodule

[Altera_Forum]

--- Quote Start ---  So far i've got this - I've looked at sample code, but I'm kinda stuck atm just won't work - any ideas? Thanks!!  In verilog~   /////////////////////////////////////////////////////////////////////////////////  // VGA Controller  /////////////////////////////////////////////////////////////////////////////////      always @(posedge CLOCK_50) begin  if (count1 == 0) begin  ledcounter = ledcounter+1;  end    count1 = count1+1;    //divide by 2 = 25 MHz  if (count == 1) begin  count = 0;  end  else begin  refreshHVGA();  refreshVVGA();   count = 1;  end  end     // Horizontal  // 96 Sync  // 48 Back Porch  // 640 Pixel  // 16 Front Porch  // 800 total  task refreshHVGA;  begin     //Reset  if (h_cnt == 800) begin  h_cnt = 0;  v_cnt = v_cnt+1;   end    if (h_cnt == 0) begin  //Sync (96 cycles)  vga_h_sync = 0;  p_flag = 0;  end  else if (h_cnt == 96) begin  //Back Porch B (48 cycles)  vga_h_sync = 1;   end  else if(h_cnt == 144) begin  //Display Interval C (640 cycles)    if(v_flag) begin  //RGB Row On  //get from BMP file    red = 255;  green = 0;  blue = 0;  end    end  else if (h_cnt == 784) begin  //Front Porch D (0.6 us)  //set output to 0  red = 0;  green = 0;  blue = 0;  end    h_cnt = h_cnt+1;  end  endtask   // Vertical  // 2 Sync  // 33 Front Porch  // 480 Video Lines  // 10 Back Porch   // 525 Lines total  task refreshVVGA;  begin  //Reset  if (v_cnt == 525) begin  v_cnt = 0;  end    if (v_cnt == 0) begin  //Sync A (2 lines)  vga_v_sync = 0;  end  else if (v_cnt == 2) begin  //Back Porch B (33 lines)  vga_v_sync = 1;  end  else if (v_cnt == 35) begin  //Display Interval C (480 lines)  //wait for horizontal to do it's job   v_flag = 1;  end  else if (v_cnt == 515) begin  //Front Porch D (10 lines)    v_flag = 0;  end  end  endtask endmodule  --- Quote End ---    1. This is not a complete hardware description, I can't determine which signals are wires and which signals are ports. So it is pretty much impossible to debug.   For instance, you set p_flag and use v_flag? I think by "p_flag", you actually mean "v_flag"?  2. Did you try simulating your module (in ModelSim, for example) and/or looking at your 25 MHz clock, VSync, HSync, R, G, B lines using a logic analyzer? If you did, please post a screen shot of your simulation and/or logic analyzer results.  Bart

[Altera_Forum]

Sorry!! 

 output VGA_HS; // VGA H_SYNC output VGA_VS; // VGA V_SYNC output [3:0] VGA_R; // VGA Red[3:0] output [3:0] VGA_G; // VGA Green[3:0] output [3:0] VGA_B; // VGA Blue[3:0]   // 50 Mhz clock input CLOCK_50; // 50    reg [0:7] count, h_cnt, v_cnt, p_cnt; reg [0:4] red, green, blue; reg [0:1] vga_h_sync, vga_v_sync; reg [0:1] p_flag, v_flag;  ****p_flg is no longer used   reg [0:20] count1; //for running LEDs   assign VGA_HS = vga_h_sync; assign VGA_VS = vga_v_sync; assign VGA_R = red; assign VGA_G = green; assign VGA_B = blue;  No, I do not have modelsim, ill go grab it //nvm, need licence and whatever :-/