www.pudn.com > vga_colors.rar > vga_colors.v, change:2009-03-09,size:2091b

/* 
 *  Copyright (C) 2006-2008 CMM Sigma Andrzej Chmielowiec <cmmsigma@cmmsigma.eu> 
 * 
 *  This program is free software; you can redistribute it and/or modify 
 *  it under the terms of the GNU General Public License version 3 
 *  as published by the Free Software Foundation. 
 * 
 *  This program is distributed in the hope that it will be useful, 
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of 
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 *  GNU General Public License for more details. 
 * 
 *  If you want to use this code under other conditions, please contact  
 *  CMM Sigma <cmmsigma@cmmsigma.eu>. 
 */ 
/* 
 * vga_colors.v author Andrzej Chmielowiec 
 * (c) Copyright by CMM Sigma (http://www.cmmsigma.eu) 
 */ 
 
/* 
 * This code and its parts can be used for educational  
 * purposes only. 
 */ 
 
/* 
 * Module signals 
 * ============== 
 * 
 * hSync[out] -  
 *   Horizontal synchronization of VGA (D-Sub Connector Pin 13). 
 * 
 * vSync[out] - 
 *   Vertical synchronization of (D-Sub Connector Pin 14). 
 * 
 * red[out] - 
 *   Red color component for given pixel (D-Sub Connector Pin 1). 
 * 
 * green[out] -  
 *   Green color component for given pixel (D-Sub Connector Pin 2). 
 * 
 * blue[out] -  
 *   Blue color component for given pixel (D-Sub Connector Pin 3). 
 * 
 * clk[in] - 
 *   Clock signal. 
 * 
 */ 
module VgaColors 
( 
	output hSync, 
	output vSync, 
	output red, 
	output green, 
	output blue, 
	input clk,reset_n 
); 
// want active-high reset 
  wire reset; 
  assign reset = ~reset_n; 
// 640x480 expects 25 MHz, so divide 50 Mhz by two 
  reg clk_div2; 
  always @(posedge clk) 
    if (reset) clk_div2 = 0; 
    else clk_div2 = clk_div2 + 1'b01; 
 
	wire [11:0] pixelWire; 
 
	VgaSync # 
	( 
		.H_PIXELS(640), 
		.V_LINES(480) 
	) 
	vgaSync 
	( 
		.hSync(hSync), 
		.vSync(vSync), 
		.redOut(red), 
		.greenOut(green), 
		.blueOut(blue), 
		.pixel(pixelWire), 
		.line(lineWire), 
		.redIn(pixelWire[6]), 
		.greenIn(pixelWire[7]), 
		.blueIn(pixelWire[8]), 
		.clk(clk_div2) 
	); 
	 
endmodule