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[/] [ao486/] [trunk/] [sim/] [iverilog/] [vga/] [tb_vga.v] - Rev 2
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`timescale 1ps/1ps module tb_vga(); reg clk_26; reg rst_n; reg [3:0] io_b_address; reg io_b_write; reg [7:0] io_b_writedata; reg [3:0] io_c_address; reg io_c_write; reg [7:0] io_c_writedata; reg [3:0] io_d_address; reg io_d_write; reg [7:0] io_d_writedata; reg [16:0] mem_address; reg mem_write; reg [7:0] mem_writedata; vga vga_inst( .clk_26 (clk_26), .rst_n (rst_n), //avalon slave for system overlay .sys_address (8'd0), //input [7:0] .sys_read (1'd0), //input .sys_readdata (), //output [15:0] .sys_write (1'd0), //input .sys_writedata (32'd0), //input //avalon slave vga io .io_b_address (io_b_address), //input [3:0] .io_b_read (1'b0), //input .io_b_readdata (), //output [7:0] .io_b_write (io_b_write), //input .io_b_writedata (io_b_writedata), //input [7:0] //avalon slave vga io .io_c_address (io_c_address), //input [3:0] .io_c_read (1'b0), //input .io_c_readdata (), //output [7:0] .io_c_write (io_c_write), //input .io_c_writedata (io_c_writedata), //input [7:0] //avalon slave vga io .io_d_address (io_d_address), //input [3:0] .io_d_read (1'b0), //input .io_d_readdata (), //output [7:0] .io_d_write (io_d_write), //input .io_d_writedata (io_d_writedata), //input [7:0] //avalon slave vga memory .mem_address (mem_address), //input [16:0] .mem_read (1'b0), //input .mem_readdata (), //output [7:0] .mem_write (mem_write), //input .mem_writedata (mem_writedata), //input [7:0] //vga .vga_clock (), //output .vga_sync_n (), //output .vga_blank_n (), //output .vga_horiz_sync (), //output .vga_vert_sync (), //output .vga_r (), //output [7:0] .vga_g (), //output [7:0] .vga_b () //output [7:0] ); initial begin clk_26 = 1'b0; forever #5 clk_26 = ~clk_26; end integer finished = 0; `define WRITE_B(addr, data) \ io_b_write = 1'b1; \ io_b_address = addr; \ io_b_writedata = data; \ #10 \ io_b_write = 1'b0; `define WRITE_C(addr, data) \ io_c_write = 1'b1; \ io_c_address = addr; \ io_c_writedata = data; \ #10 \ io_c_write = 1'b0; `define WRITE_D(addr, data) \ io_d_write = 1'b1; \ io_d_address = addr; \ io_d_writedata = data; \ #10 \ io_d_write = 1'b0; `define WRITE_MEM(addr, data) \ mem_write = 1'b1; \ mem_address = addr; \ mem_writedata = data; \ #10 \ mem_write = 1'b0; reg [255:0] dumpfile_name; initial begin if( $value$plusargs("dumpfile=%s", dumpfile_name) == 0 ) begin dumpfile_name = "default.vcd"; end $dumpfile(dumpfile_name); $dumpvars(0); $dumpon(); $display("START"); //-------------------------------------------------------------------------- io_c_write = 1'b0; io_c_address = 4'h0; io_c_writedata = 8'h00; io_b_write = 1'b0; io_b_address = 4'h0; io_b_writedata = 8'h00; io_d_write = 1'b0; io_d_address = 4'h0; io_d_writedata = 8'h00; mem_write = 1'b0; mem_writedata = 8'h00; mem_address = 17'h00000; rst_n = 1'b0; #10 rst_n = 1'b1; #10; // write color to dac `WRITE_C(4'h8, 8'h1) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h01) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h02) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h03) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h04) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h05) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h06) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h07) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h08) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h09) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h0a) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h0b) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h0c) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h0d) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h0e) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h0f) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h10) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h11) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h12) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h13) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h14) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h15) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h16) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h00) `WRITE_C(4'h9, 8'h17) `WRITE_C(4'h9, 8'h00) //TEST mode 0x13 //write pixel in mode 0x13 //`WRITE_MEM(17'h0013F, 8'h01) //TEST mode 0x01 /* //disable chained mode and odd/even mode `WRITE_C(4'h4, 8'h04); `WRITE_C(4'h5, 8'h06); //enable page 2 write `WRITE_C(4'h4, 8'h02) `WRITE_C(4'h5, 8'h04) //load font data `WRITE_MEM(17'h0, 8'h81); `WRITE_MEM(17'h1, 8'h99); //load sequencer `WRITE_C(4, 1) `WRITE_C(5, 8'h08) `WRITE_C(4, 2) `WRITE_C(5, 8'h03) `WRITE_C(4, 3) `WRITE_C(5, 8'h00) `WRITE_C(4, 4) `WRITE_C(5, 8'h02) //load misc `WRITE_C(2, 8'h67) //load crtc -- disable protect `WRITE_D(4, 5'h11) `WRITE_D(5, 8'h8E & 8'h7F); `WRITE_D(4, 5'h00) `WRITE_D(5, 8'h2d) `WRITE_D(4, 5'h01) `WRITE_D(5, 8'h27) `WRITE_D(4, 5'h02) `WRITE_D(5, 8'h28) `WRITE_D(4, 5'h03) `WRITE_D(5, 8'h90) `WRITE_D(4, 5'h04) `WRITE_D(5, 8'h2b) `WRITE_D(4, 5'h05) `WRITE_D(5, 8'ha0) `WRITE_D(4, 5'h06) `WRITE_D(5, 8'hbf) `WRITE_D(4, 5'h07) `WRITE_D(5, 8'h1f) `WRITE_D(4, 5'h08) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h09) `WRITE_D(5, 8'h4f) `WRITE_D(4, 5'h0A) `WRITE_D(5, 8'h0d) `WRITE_D(4, 5'h0B) `WRITE_D(5, 8'h0e) `WRITE_D(4, 5'h0C) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0D) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0E) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0F) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h10) `WRITE_D(5, 8'h9c) `WRITE_D(4, 5'h11) `WRITE_D(5, 8'h8e) `WRITE_D(4, 5'h12) `WRITE_D(5, 8'h8f) `WRITE_D(4, 5'h13) `WRITE_D(5, 8'h14) `WRITE_D(4, 5'h14) `WRITE_D(5, 8'h1f) `WRITE_D(4, 5'h15) `WRITE_D(5, 8'h96) `WRITE_D(4, 5'h16) `WRITE_D(5, 8'hb9) `WRITE_D(4, 5'h17) `WRITE_D(5, 8'ha3) `WRITE_D(4, 5'h18) `WRITE_D(5, 8'hff) //load attrib `WRITE_C(0, 8'h20 | 8'h00) `WRITE_C(0, 8'h00) `WRITE_C(0, 8'h20 | 8'h01) `WRITE_C(0, 8'h01) `WRITE_C(0, 8'h20 | 8'h02) `WRITE_C(0, 8'h02) `WRITE_C(0, 8'h20 | 8'h03) `WRITE_C(0, 8'h03) `WRITE_C(0, 8'h20 | 8'h04) `WRITE_C(0, 8'h04) `WRITE_C(0, 8'h20 | 8'h05) `WRITE_C(0, 8'h05) `WRITE_C(0, 8'h20 | 8'h06) `WRITE_C(0, 8'h06) `WRITE_C(0, 8'h20 | 8'h07) `WRITE_C(0, 8'h07) `WRITE_C(0, 8'h20 | 8'h08) `WRITE_C(0, 8'h38) `WRITE_C(0, 8'h20 | 8'h09) `WRITE_C(0, 8'h39) `WRITE_C(0, 8'h20 | 8'h0A) `WRITE_C(0, 8'h3a) `WRITE_C(0, 8'h20 | 8'h0B) `WRITE_C(0, 8'h3b) `WRITE_C(0, 8'h20 | 8'h0C) `WRITE_C(0, 8'h3c) `WRITE_C(0, 8'h20 | 8'h0D) `WRITE_C(0, 8'h3d) `WRITE_C(0, 8'h20 | 8'h0E) `WRITE_C(0, 8'h3e) `WRITE_C(0, 8'h20 | 8'h0F) `WRITE_C(0, 8'h3f) `WRITE_C(0, 8'h20 | 8'h10) `WRITE_C(0, 8'h0c) `WRITE_C(0, 8'h20 | 8'h11) `WRITE_C(0, 8'h00) `WRITE_C(0, 8'h20 | 8'h12) `WRITE_C(0, 8'h0f) `WRITE_C(0, 8'h20 | 8'h13) `WRITE_C(0, 8'h08) //load graphic `WRITE_C(8'hE, 0) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 1) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 2) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 3) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 4) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 5) `WRITE_C(8'hF, 8'h10) `WRITE_C(8'hE, 6) `WRITE_C(8'hF, 8'h0e) `WRITE_C(8'hE, 7) `WRITE_C(8'hF, 8'h0f) `WRITE_C(8'hE, 8) `WRITE_C(8'hF, 8'hff) `WRITE_MEM(17'h18001, 8'h01) `WRITE_MEM(17'h1804f, 8'h01) */ //test mode 0x07 /* //disable chained mode and odd/even mode `WRITE_C(4'h4, 8'h04); `WRITE_C(4'h5, 8'h06); //enable page 2 write `WRITE_C(4'h4, 8'h02) `WRITE_C(4'h5, 8'h04) //load font data `WRITE_MEM(17'h0, 8'h81); `WRITE_MEM(17'h1, 8'h99); //load sequencer `WRITE_C(4, 1) `WRITE_C(5, 8'h00) `WRITE_C(4, 2) `WRITE_C(5, 8'h03) `WRITE_C(4, 3) `WRITE_C(5, 8'h00) `WRITE_C(4, 4) `WRITE_C(5, 8'h02) //load misc `WRITE_C(2, 8'h66) //load crtc -- disable protect `WRITE_B(4, 5'h11) `WRITE_B(5, 8'h8E & 8'h7F); `WRITE_B(4, 5'h00) `WRITE_B(5, 8'h5f) `WRITE_B(4, 5'h01) `WRITE_B(5, 8'h4f) `WRITE_B(4, 5'h02) `WRITE_B(5, 8'h50) `WRITE_B(4, 5'h03) `WRITE_B(5, 8'h82) `WRITE_B(4, 5'h04) `WRITE_B(5, 8'h55) `WRITE_B(4, 5'h05) `WRITE_B(5, 8'h81) `WRITE_B(4, 5'h06) `WRITE_B(5, 8'hbf) `WRITE_B(4, 5'h07) `WRITE_B(5, 8'h1f) `WRITE_B(4, 5'h08) `WRITE_B(5, 8'h00) `WRITE_B(4, 5'h09) `WRITE_B(5, 8'h4f) `WRITE_B(4, 5'h0A) `WRITE_B(5, 8'h0d) `WRITE_B(4, 5'h0B) `WRITE_B(5, 8'h0e) `WRITE_B(4, 5'h0C) `WRITE_B(5, 8'h00) `WRITE_B(4, 5'h0D) `WRITE_B(5, 8'h00) `WRITE_B(4, 5'h0E) `WRITE_B(5, 8'h00) `WRITE_B(4, 5'h0F) `WRITE_B(5, 8'h00) `WRITE_B(4, 5'h10) `WRITE_B(5, 8'h9c) `WRITE_B(4, 5'h11) `WRITE_B(5, 8'h8e) `WRITE_B(4, 5'h12) `WRITE_B(5, 8'h8f) `WRITE_B(4, 5'h13) `WRITE_B(5, 8'h28) `WRITE_B(4, 5'h14) `WRITE_B(5, 8'h0f) `WRITE_B(4, 5'h15) `WRITE_B(5, 8'h96) `WRITE_B(4, 5'h16) `WRITE_B(5, 8'hb9) `WRITE_B(4, 5'h17) `WRITE_B(5, 8'ha3) `WRITE_B(4, 5'h18) `WRITE_B(5, 8'hff) //load attrib `WRITE_C(0, 8'h20 | 8'h00) `WRITE_C(0, 8'h00) `WRITE_C(0, 8'h20 | 8'h01) `WRITE_C(0, 8'h08) `WRITE_C(0, 8'h20 | 8'h02) `WRITE_C(0, 8'h08) `WRITE_C(0, 8'h20 | 8'h03) `WRITE_C(0, 8'h08) `WRITE_C(0, 8'h20 | 8'h04) `WRITE_C(0, 8'h08) `WRITE_C(0, 8'h20 | 8'h05) `WRITE_C(0, 8'h08) `WRITE_C(0, 8'h20 | 8'h06) `WRITE_C(0, 8'h08) `WRITE_C(0, 8'h20 | 8'h07) `WRITE_C(0, 8'h08) `WRITE_C(0, 8'h20 | 8'h08) `WRITE_C(0, 8'h10) `WRITE_C(0, 8'h20 | 8'h09) `WRITE_C(0, 8'h18) `WRITE_C(0, 8'h20 | 8'h0A) `WRITE_C(0, 8'h18) `WRITE_C(0, 8'h20 | 8'h0B) `WRITE_C(0, 8'h18) `WRITE_C(0, 8'h20 | 8'h0C) `WRITE_C(0, 8'h18) `WRITE_C(0, 8'h20 | 8'h0D) `WRITE_C(0, 8'h18) `WRITE_C(0, 8'h20 | 8'h0E) `WRITE_C(0, 8'h18) `WRITE_C(0, 8'h20 | 8'h0F) `WRITE_C(0, 8'h18) `WRITE_C(0, 8'h20 | 8'h10) `WRITE_C(0, 8'h0e) `WRITE_C(0, 8'h20 | 8'h11) `WRITE_C(0, 8'h00) `WRITE_C(0, 8'h20 | 8'h12) `WRITE_C(0, 8'h0f) `WRITE_C(0, 8'h20 | 8'h13) `WRITE_C(0, 8'h08) //load graphic `WRITE_C(8'hE, 0) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 1) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 2) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 3) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 4) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 5) `WRITE_C(8'hF, 8'h10) `WRITE_C(8'hE, 6) `WRITE_C(8'hF, 8'h0a) `WRITE_C(8'hE, 7) `WRITE_C(8'hF, 8'h0f) `WRITE_C(8'hE, 8) `WRITE_C(8'hF, 8'hff) `WRITE_MEM(17'h10001, 8'h01) `WRITE_MEM(17'h1009f, 8'h01) */ //test mode 0x04 `WRITE_C(4, 1) `WRITE_C(5, 8'h09) `WRITE_C(4, 2) `WRITE_C(5, 8'h03) `WRITE_C(4, 3) `WRITE_C(5, 8'h00) `WRITE_C(4, 4) `WRITE_C(5, 8'h02) //load misc `WRITE_C(2, 8'h63) //load crtc -- disable protect `WRITE_D(4, 5'h11) `WRITE_D(5, 8'h8E & 8'h7F); `WRITE_D(4, 5'h00) `WRITE_D(5, 8'h2d) `WRITE_D(4, 5'h01) `WRITE_D(5, 8'h27) `WRITE_D(4, 5'h02) `WRITE_D(5, 8'h28) `WRITE_D(4, 5'h03) `WRITE_D(5, 8'h90) `WRITE_D(4, 5'h04) `WRITE_D(5, 8'h2b) `WRITE_D(4, 5'h05) `WRITE_D(5, 8'h80) `WRITE_D(4, 5'h06) `WRITE_D(5, 8'hbf) `WRITE_D(4, 5'h07) `WRITE_D(5, 8'h1f) `WRITE_D(4, 5'h08) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h09) `WRITE_D(5, 8'hc1) `WRITE_D(4, 5'h0A) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0B) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0C) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0D) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0E) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h0F) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h10) `WRITE_D(5, 8'h9c) `WRITE_D(4, 5'h11) `WRITE_D(5, 8'h8e) `WRITE_D(4, 5'h12) `WRITE_D(5, 8'h8f) `WRITE_D(4, 5'h13) `WRITE_D(5, 8'h14) `WRITE_D(4, 5'h14) `WRITE_D(5, 8'h00) `WRITE_D(4, 5'h15) `WRITE_D(5, 8'h96) `WRITE_D(4, 5'h16) `WRITE_D(5, 8'hb9) `WRITE_D(4, 5'h17) `WRITE_D(5, 8'ha2) `WRITE_D(4, 5'h18) `WRITE_D(5, 8'hff) //load attrib `WRITE_C(0, 8'h20 | 8'h00) `WRITE_C(0, 8'h00) `WRITE_C(0, 8'h20 | 8'h01) `WRITE_C(0, 8'h13) `WRITE_C(0, 8'h20 | 8'h02) `WRITE_C(0, 8'h15) `WRITE_C(0, 8'h20 | 8'h03) `WRITE_C(0, 8'h17) `WRITE_C(0, 8'h20 | 8'h04) `WRITE_C(0, 8'h02) `WRITE_C(0, 8'h20 | 8'h05) `WRITE_C(0, 8'h04) `WRITE_C(0, 8'h20 | 8'h06) `WRITE_C(0, 8'h06) `WRITE_C(0, 8'h20 | 8'h07) `WRITE_C(0, 8'h07) `WRITE_C(0, 8'h20 | 8'h08) `WRITE_C(0, 8'h10) `WRITE_C(0, 8'h20 | 8'h09) `WRITE_C(0, 8'h11) `WRITE_C(0, 8'h20 | 8'h0A) `WRITE_C(0, 8'h12) `WRITE_C(0, 8'h20 | 8'h0B) `WRITE_C(0, 8'h13) `WRITE_C(0, 8'h20 | 8'h0C) `WRITE_C(0, 8'h14) `WRITE_C(0, 8'h20 | 8'h0D) `WRITE_C(0, 8'h15) `WRITE_C(0, 8'h20 | 8'h0E) `WRITE_C(0, 8'h16) `WRITE_C(0, 8'h20 | 8'h0F) `WRITE_C(0, 8'h17) `WRITE_C(0, 8'h20 | 8'h10) `WRITE_C(0, 8'h01) `WRITE_C(0, 8'h20 | 8'h11) `WRITE_C(0, 8'h00) `WRITE_C(0, 8'h20 | 8'h12) `WRITE_C(0, 8'h03) `WRITE_C(0, 8'h20 | 8'h13) `WRITE_C(0, 8'h00) //load graphic `WRITE_C(8'hE, 0) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 1) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 2) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 3) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 4) `WRITE_C(8'hF, 8'h00) `WRITE_C(8'hE, 5) `WRITE_C(8'hF, 8'h30) `WRITE_C(8'hE, 6) `WRITE_C(8'hF, 8'h0f) `WRITE_C(8'hE, 7) `WRITE_C(8'hF, 8'h0f) `WRITE_C(8'hE, 8) `WRITE_C(8'hF, 8'hff) `WRITE_MEM(17'h18000, 8'hC0 | 8'h20 | 8'h04 | 8'h3); `WRITE_MEM(17'h1804f, 8'hC0 | 8'h20 | 8'h04 | 8'h3); while(finished == 0) begin if($time > 5000000) $finish_and_return(-1); #10; //$dumpflush(); end #60; $dumpoff(); $finish_and_return(0); end endmodule