multigenhd_horz_logo.v

SDI接口的源程序,包括扰码编码,并串转换,用VHDL硬件描述语言编写

//------------------------------------------------------------------------------ 
// Copyright (c) 2004 Xilinx, Inc. 
// All Rights Reserved 
//------------------------------------------------------------------------------ 
//   ____  ____ 
//  /   /\/   / 
// /___/  \  /   Vendor: Xilinx 
// \   \   \/    Author: John F. Snow, Advanced Product Division, Xilinx, Inc.
//  \   \        Filename: $RCSfile: multigenHD_horz_logo.v,rcs $
//  /   /        Date Last Modified:  $Date: 2004-10-15 09:04:58-06 $
// /___/   /\    Date Created: May 25, 2004 
// \   \  /  \ 
//  \___\/\___\ 
// 
//
// Revision History: 
// $Log: multigenHD_horz_logo.v,rcs $
// Revision 1.1  2004-10-15 09:04:58-06  jsnow
// Header update.
//
// Revision 1.0  2004-05-25 13:21:35-06  jsnow
// Initial revision
//------------------------------------------------------------------------------ 
//
//     XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"
//     SOLELY FOR USE IN DEVELOPING PROGRAMS AND SOLUTIONS FOR
//     XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE, OR INFORMATION
//     AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION
//     OR STANDARD, XILINX IS MAKING NO REPRESENTATION THAT THIS
//     IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,
//     AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE
//     FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY
//     WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE
//     IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR
//     REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF
//     INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//     FOR A PARTICULAR PURPOSE.
//
//------------------------------------------------------------------------------ 
/*
This module contains the horizontal sequencer for the HD video pattern 
generator. A block RAM is used as a finite state machine to sequence through
the various horizontal regions of the video patterns. The module outputs a
horizontal region code indicating which horizontal region of the video pattern
is currently active.

This is a slightly modified version of the multigenHD_horz module from XAPP682.
The only difference is that this module outputs the entire horizontal counter
value as a port.
*/

module multigenHD_horz_logo #(parameter HCNT_WIDTH = 12) (
    input   wire                  clk,           // word-rate clock
    input   wire                  rst,           // async reset
    input   wire                  ce,            // clock enable
    input   wire [2:0]            std,           // selects video format
    input   wire [1:0]            pattern,       // 00 = RP 219 colorbars, 
                                                 // X1 = RP 198 checkfield, 
                                                 // 10 = 75% colorbars
    input   wire [1:0]            user_opt,      // selects option for the *2 & 
                                                 // *3 blocks of RP 219
    input   wire                  first_line,    // asserted during first active line
    input   wire                  f,             // odd/even field indicator
    output  wire                  v_inc,         // increment vertical counter
    output  wire                  trs,           // asserted at start of TRS
    output  wire                  xyz,           // asserted during XYZ word of TRS
    output  wire                  h,             // h blanking interval indicator
    output  reg  [4:0]            h_region,      // horizontal region code
    output  wire                  h_counter_lsb, // LSB of horizontal counter
    output  reg  [HCNT_WIDTH-1:0] h_counter      // horizontal counter
);

//-----------------------------------------------------------------------------
// Parameter definitions
//

//
// This group of parameters defines the bit widths of various fields in the
// module. Note that if the VID_WIDTH parameter is changed, the video component
// values for the various colors will need to be modified accordingly.
//
parameter VID_WIDTH     = 10;                   // Width of video components
parameter HRGN_WIDTH    = 5;                    // Width of h_region counter

parameter H_EVNT_WIDTH  = HCNT_WIDTH - 1;       // Width of h_next_evnt
 
parameter VID_MSB       = VID_WIDTH - 1;        // MS bit # of video data path
parameter HCNT_MSB      = HCNT_WIDTH - 1;       // MS bit # of h_counter
parameter HRGN_MSB      = HRGN_WIDTH - 1;       // MS bit # of h_region counter
parameter H_EVNT_MSB    = H_EVNT_WIDTH - 1;     // MS bit # of h_next_evnt

//
// This group of parameters defines the horizontal regions from the horizontal
// ROM. Note that the three HRGN_USROPTx regions are never generated by the
// horizontal ROM. An encoder will change HRGN_BAR1 to any of these three values
// depending on the user option inputs before feeding the modified horizontal
// region code to the color ROM. The encoder will also determine whether to
// output the HRGN_CEQ_POL0 or POL1 code depending on whether the current frame
// is odd or even.
//
parameter [HRGN_MSB:0]
    HRGN_BAR0           = 0,    // 40% gray
    HRGN_BAR1           = 1,    // 75% white (left part 0% black)
    HRGN_BAR2           = 2,    // left part 75% yellow (right part 0% black)
    HRGN_BAR3           = 3,    // right part 75% yellow (right part 100% white)
    HRGN_BAR4           = 4,    // 75% cyan (middle part 100% white)
    HRGN_BAR5           = 5,    // left part 75% green (left part 100% white)
    HRGN_BAR6           = 6,    // right part 75% green (left part 0% black)
    HRGN_BAR7           = 7,    // left part 75% magenta (right part 0% black) 
    HRGN_BAR8           = 8,    // middle part 75% magenta (-2% black)
    HRGN_BAR9           = 9,    // right part 75% magenta (0% black)
    HRGN_BAR10          = 10,   // left part 75% red (+2% black)
    HRGN_BAR11          = 11,   // middle part 75% red (0% black)
    HRGN_BAR12          = 12,   // right part 75% red (+4% black)
    HRGN_BAR13          = 13,   // 75% blue (0% black)
    HRGN_BAR14          = 14,   // 40% gray
    HRGN_INCV           = 15,   // increment vertical line number
    HRGN_EAV1           = 16,   // first two words of EAV
    HRGN_EAV2_F0        = 17,   // second two words of EAV for field 0
    HRGN_HBLANK         = 18,   // horizontal blanking period
    HRGN_SAV1           = 19,   // first two words of SAV
    HRGN_SAV2_F0        = 20,   // second two words of SAV for field 0
    HRGN_LN             = 21,   // two words of line number
    HRGN_CRC            = 22,   // two words of CRC
    HRGN_SAV2_F1        = 23,   // second two words of SAV for field 1
    HRGN_USROPT1        = 24,   // BAR1 but with 100% white in pat 2, 0% black in pat 3
    HRGN_USROPT2        = 25,   // BAR1 but with +I in pat 2, 0% black in pat 3
    HRGN_USROPT3        = 26,   // BAR1 but with -I in pat 2, +Q in pat 3
    HRGN_EAV2_F1        = 27,   // second two words of EAV for field 1
    HRGN_CEQ_PLL        = 28,   // RP 198 cable equalization pattern
    HRGN_CEQ_POL_0      = 29,   // RP 198 cable eq pattern, polarity word even frame
    HRGN_CEQ_POL_1      = 30,   // RP 198 cable eq pattern, polarity word odd frame
    HRGN_RST            = 31;   // initial state after reset


//-----------------------------------------------------------------------------
// Signal definitions
//

wire    [31:0]          hrom_out;       // HROM output
wire    [H_EVNT_MSB:0]  h_next_evnt;    // next horizontal event
wire                    h_evnt_match;   // output of horizontal event comparator
wire                    hrom_en;        // EN input to horizontal ROM
wire    [HRGN_MSB:0]    h_region_rom;   // current horizontal region
wire    [HRGN_MSB:0]    h_next_region;  // next horizontal region
wire                    h_clr;          // clears the horizontal counter
wire                    usropt_rgn;     // horz region where h_region is affected by user_opt inputs
wire                    ceqpol_rgn;     // horz region where h_region is affected by ceq polarity
wire                    eav2_rgn;       // last two words of EAV
wire                    sav2_rgn;       // last two words of SAV
wire    [31:0]          GND32 = 32'b0000_0000_0000_0000_0000_0000_0000_0000;
wire    [3:0]           GND4 =  4'b0000;


//
// Horizontal ROM
//

// Simulation initialization code HROM
// Created by multigenHD_romgen.v
// Video format mapping:
//   000 =  SMPTE 295M - 1080i  25Hz (1250 lines/frame)
//   001 =  SMPTE 274M - 1080sF 24Hz & 23.98Hz         
//   002 =  SMPTE 274M - 1080i  30Hz & 29.97 Hz        
//   003 =  SMPTE 274M - 1080i  25Hz                   
//   004 =  SMPTE 274M - 1080p  30Hz & 29.97Hz         
//   005 =  SMPTE 274M - 1080p  25Hz                   
//   006 =  SMPTE 274M - 1080p  24Hz & 23.98Hz         
//   007 =  SMPTE 296M - 720p   60Hz & 59.94Hz         
//synthesis translate_off
defparam
HROM.INIT = 36'h00060FFFF,
HROM.SRVAL = 36'h00060FFFF,
HROM.WRITE_MODE = "READ_FIRST",
HROM.INITP_00 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INITP_01 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INITP_02 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INITP_03 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INITP_04 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INITP_05 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INITP_06 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INITP_07 = 256'h0000000000000000000000000000000000000000000000000000000000000000,
HROM.INIT_00 = 256'h000746880006424700053BE600043585000328A40002222302011BC200000EE1,
HROM.INIT_01 = 256'h004F77F0000E77CF000D68EE000C5C0D000B57CC000A536B00094F2A00084AC9,
HROM.INIT_02 = 256'h00170010011678720115785611B4946001939454011294330991783501907811,
HROM.INIT_03 = 256'h015F0012001E0010001D0010001C0010001B0010001A00100019001000180010,
HROM.INIT_04 = 256'h0007001000060010000500100004001000030010000200100001001000000010,
HROM.INIT_05 = 256'h004F77F0000E0010000D0010000C0010000B0010000A00100009001000080010,
HROM.INIT_06 = 256'h00170010011678720115785611B4947D01939454011294330991783501907811,
HROM.INIT_07 = 256'h015F0012001E0010041D003C001C77CF001B0010001A00100019001000180010,
HROM.INIT_08 = 256'h000746880006424700053BE600043585000328A40002222302011BC200000EE1,
HROM.INIT_09 = 256'h004F77F0000E77CF000D68EE000C5C0D000B57CC000A536B00094F2A00084AC9,
HROM.INIT_0A = 256'h00170010011678720115785611B4ABC00193ABB40112AB930991783501907811,
HROM.INIT_0B = 256'h015F0012001E0010001D0010001C0010001B0010001A00100019001000180010,
HROM.INIT_0C = 256'h0007001000060010000500100004001000030010000200100001001000000010,
HROM.INIT_0D = 256'h004F77F0000E0010000D0010000C0010000B0010000A00100009001000080010,
HROM.INIT_0E = 256'h00170010011678720115785611B4ABDD0193ABB40112AB930991783501907811,
HROM.INIT_0F = 256'h015F0012001E0010041D003C001C77CF001B0010001A00100019001000180010,
HROM.INIT_10 = 256'h000746880006424700053BE600043585000328A40002222302011BC200000EE1,
HROM.INIT_11 = 256'h004F77F0000E77CF000D68EE000C5C0D000B57CC000A536B00094F2A00084AC9,
HROM.INIT_12 = 256'h00170010011678720115785611B4896001938954011289330991783501907811,
HROM.INIT_13 = 256'h015F0012001E0010001D0010001C0010001B0010001A00100019001000180010,
HROM.INIT_14 = 256'h0007001000060010000500100004001000030010000200100001001000000010,
HROM.INIT_15 = 256'h004F77F0000E0010000D0010000C0010000B0010000A00100009001000080010,
HROM.INIT_16 = 256'h00170010011678720115785611B4897D01938954011289330991783501907811,
HROM.INIT_17 = 256'h015F0012001E0010041D003C001C77CF001B0010001A00100019001000180010,
HROM.INIT_18 = 256'h000746880006424700053BE600043585000328A40002222302011BC200000EE1,
HROM.INIT_19 = 256'h004F77F0000E77CF000D68EE000C5C0D000B57CC000A536B00094F2A00084AC9,
HROM.INIT_1A = 256'h00170010011678720115785611B4A4E00193A4D40112A4B30991783501907811,
HROM.INIT_1B = 256'h015F0012001E0010001D0010001C0010001B0010001A00100019001000180010,
HROM.INIT_1C = 256'h0007001000060010000500100004001000030010000200100001001000000010,
HROM.INIT_1D = 256'h004F77F0000E0010000D0010000C0010000B0010000A00100009001000080010,
HROM.INIT_1E = 256'h00170010011678720115785611B4A4FD0193A4D40112A4B30991783501907811,
HROM.INIT_1F = 256'h015F0012001E0010041D003C001C77CF001B0010001A00100019001000180010,
HROM.INIT_20 = 256'h000746880006424700053BE600043585000328A40002222302011BC200000EE1,
HROM.INIT_21 = 256'h004F77F0000E77CF000D68EE000C5C0D000B57CC000A536B00094F2A00084AC9,
HROM.INIT_22 = 256'h00170010011678720115785611B4896001938954011289330991783501907811,
HROM.INIT_23 = 256'h015F0012001E0010001D0010001C0010001B0010001A00100019001000180010,
HROM.INIT_24 = 256'h0007001000060010000500100004001000030010000200100001001000000010,
HROM.INIT_25 = 256'h004F77F0000E0010000D0010000C0010000B0010000A00100009001000080010,
HROM.INIT_26 = 256'h00170010011678720115785611B4897D01938954011289330991783501907811,
HROM.INIT_27 = 256'h015F0012001E0010041D003C001C77CF001B0010001A00100019001000180010,
HROM.INIT_28 = 256'h000746880006424700053BE600043585000328A40002222302011BC200000EE1,
HROM.INIT_29 = 256'h004F77F0000E77CF000D68EE000C5C0D000B57CC000A536B00094F2A00084AC9,
HROM.INIT_2A = 256'h00170010011678720115785611B4A4E00193A4D40112A4B30991783501907811,
HROM.INIT_2B = 256'h015F0012001E0010001D0010001C0010001B0010001A00100019001000180010,
HROM.INIT_2C = 256'h0007001000060010000500100004001000030010000200100001001000000010,