PYNQ-Z2_demos/hdmi-out-test/v/dvi_generator.v

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`timescale 1ns / 1ps
`default_nettype none
// Project F: Display DVI Generator
// (C)2019 Will Green, Open Source Hardware released under the MIT License
// Learn more at https://projectf.io
module dvi_generator(
input wire i_pix_clk, // pixel clock
input wire i_pix_clk_5x, // 5 x pixel clock for DDR serialization
input wire i_rst, // reset (active high)
input wire i_de, // display enable (draw video)
input wire [7:0] i_data_ch0, // channel 0 - 8-bit colour data
input wire [7:0] i_data_ch1, // channel 1 - 8-bit colour data
input wire [7:0] i_data_ch2, // channel 2 - 8-bit colour data
input wire [1:0] i_ctrl_ch0, // channel 0 - 2-bit control data
input wire [1:0] i_ctrl_ch1, // channel 1 - 2-bit control data
input wire [1:0] i_ctrl_ch2, // channel 2 - 2-bit control data
output wire o_tmds_ch0_serial, // channel 0 - serial TMDS
output wire o_tmds_ch1_serial, // channel 1 - serial TMDS
output wire o_tmds_ch2_serial, // channel 2 - serial TMDS
output wire o_tmds_chc_serial // channel clock - serial TMDS
);
wire [9:0] tmds_ch0, tmds_ch1, tmds_ch2;
tmds_encoder_dvi encode_ch0 (
.i_clk(i_pix_clk),
.i_rst(i_rst),
.i_data(i_data_ch0),
.i_ctrl(i_ctrl_ch0),
.i_de(i_de),
.o_tmds(tmds_ch0)
);
tmds_encoder_dvi encode_ch1 (
.i_clk(i_pix_clk),
.i_rst(i_rst),
.i_data(i_data_ch1),
.i_ctrl(i_ctrl_ch1),
.i_de(i_de),
.o_tmds(tmds_ch1)
);
tmds_encoder_dvi encode_ch2 (
.i_clk(i_pix_clk),
.i_rst(i_rst),
.i_data(i_data_ch2),
.i_ctrl(i_ctrl_ch2),
.i_de(i_de),
.o_tmds(tmds_ch2)
);
// common async reset for serdes
wire rst_oserdes;
async_reset async_reset_instance (
.i_clk(i_pix_clk),
.i_rst(i_rst),
.o_rst(rst_oserdes)
);
serializer_10to1 serialize_ch0 (
.i_clk(i_pix_clk),
.i_clk_hs(i_pix_clk_5x),
.i_rst_oserdes(rst_oserdes),
.i_data(tmds_ch0),
.o_data(o_tmds_ch0_serial)
);
serializer_10to1 serialize_ch1 (
.i_clk(i_pix_clk),
.i_clk_hs(i_pix_clk_5x),
.i_rst_oserdes(rst_oserdes),
.i_data(tmds_ch1),
.o_data(o_tmds_ch1_serial)
);
serializer_10to1 serialize_ch2 (
.i_clk(i_pix_clk),
.i_clk_hs(i_pix_clk_5x),
.i_rst_oserdes(rst_oserdes),
.i_data(tmds_ch2),
.o_data(o_tmds_ch2_serial)
);
serializer_10to1 serialize_chc (
.i_clk(i_pix_clk),
.i_clk_hs(i_pix_clk_5x),
.i_rst_oserdes(rst_oserdes),
.i_data(10'b0000011111),
.o_data(o_tmds_chc_serial)
);
endmodule