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Add VGA module

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This commit is contained in:
Imants Pulkstenis
2020-04-04 01:40:11 +03:00
parent ab92a0c8a8
commit 5f98346282
5 changed files with 345 additions and 42 deletions
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Basys3_Master.xdc
+29 -29
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@@ -237,35 +237,35 @@ set_property PACKAGE_PIN N1 [get_ports {JXADC[7]}]
##VGA Connector
#set_property PACKAGE_PIN G19 [get_ports {vgaRed[0]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[0]}]
#set_property PACKAGE_PIN H19 [get_ports {vgaRed[1]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[1]}]
#set_property PACKAGE_PIN J19 [get_ports {vgaRed[2]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[2]}]
#set_property PACKAGE_PIN N19 [get_ports {vgaRed[3]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[3]}]
#set_property PACKAGE_PIN N18 [get_ports {vgaBlue[0]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[0]}]
#set_property PACKAGE_PIN L18 [get_ports {vgaBlue[1]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[1]}]
#set_property PACKAGE_PIN K18 [get_ports {vgaBlue[2]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[2]}]
#set_property PACKAGE_PIN J18 [get_ports {vgaBlue[3]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[3]}]
#set_property PACKAGE_PIN J17 [get_ports {vgaGreen[0]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[0]}]
#set_property PACKAGE_PIN H17 [get_ports {vgaGreen[1]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[1]}]
#set_property PACKAGE_PIN G17 [get_ports {vgaGreen[2]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[2]}]
#set_property PACKAGE_PIN D17 [get_ports {vgaGreen[3]}]
#set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[3]}]
#set_property PACKAGE_PIN P19 [get_ports Hsync]
#set_property IOSTANDARD LVCMOS33 [get_ports Hsync]
#set_property PACKAGE_PIN R19 [get_ports Vsync]
#set_property IOSTANDARD LVCMOS33 [get_ports Vsync]
#VGA Connector
set_property PACKAGE_PIN G19 [get_ports {vgaRed[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[0]}]
set_property PACKAGE_PIN H19 [get_ports {vgaRed[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[1]}]
set_property PACKAGE_PIN J19 [get_ports {vgaRed[2]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[2]}]
set_property PACKAGE_PIN N19 [get_ports {vgaRed[3]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaRed[3]}]
set_property PACKAGE_PIN N18 [get_ports {vgaBlue[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[0]}]
set_property PACKAGE_PIN L18 [get_ports {vgaBlue[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[1]}]
set_property PACKAGE_PIN K18 [get_ports {vgaBlue[2]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[2]}]
set_property PACKAGE_PIN J18 [get_ports {vgaBlue[3]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaBlue[3]}]
set_property PACKAGE_PIN J17 [get_ports {vgaGreen[0]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[0]}]
set_property PACKAGE_PIN H17 [get_ports {vgaGreen[1]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[1]}]
set_property PACKAGE_PIN G17 [get_ports {vgaGreen[2]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[2]}]
set_property PACKAGE_PIN D17 [get_ports {vgaGreen[3]}]
set_property IOSTANDARD LVCMOS33 [get_ports {vgaGreen[3]}]
set_property PACKAGE_PIN P19 [get_ports Hsync]
set_property IOSTANDARD LVCMOS33 [get_ports Hsync]
set_property PACKAGE_PIN R19 [get_ports Vsync]
set_property IOSTANDARD LVCMOS33 [get_ports Vsync]
##USB-RS232 Interface
horizontal_counter.v
+89
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@@ -0,0 +1,89 @@
/////////////////////////////////////////////////////////////////
// Author - Imants Pulkstenis
// Date - 04.04.2020
// Project name - Audio FFT on FPGA
// Module name - horizontal counter
//
// Detailed module description:
//
//
//
// Revision:
// A - initial design
// B -
// C -
//
///////////////////////////////////////////////////////////////////
module horizontal_counter #(
parameter
HSYNC_CLKS = 800,
HSYNC_DISPLAY = 640,
HSYNC_PULSE = 96,
HSYNC_FRONT_PORCH = 16,
HSYNC_BACK_PORCH = 48
)(
input clk,
output o_Hsync,
output o_h_display,
output [9:0] o_h_pixel
);
//----------Internal registers, constants and wariables-----
reg hsync_reg = 1'b1;
reg [9:0] counter_reg = 'h0;
reg [9:0] counter_pixel_reg = 'h0;
reg [2:0] r_state=HS_FRONT_PORCH, r_next=HS_FRONT_PORCH;
localparam [2:0] HS_FRONT_PORCH = 'h0,
HS_PULSE = 'h1,
HS_BACK_PORCH = 'h2,
HS_DISPLAY = 'h3;
//---------state register sequential always block-----------
always @(posedge clk ) begin
r_state <= r_next;
end
//----next state & outputs, combinational always block------
always@(posedge clk) begin
counter_reg <= counter_reg + 1;
case (r_state)
HS_FRONT_PORCH: begin
hsync_reg <= 1'b1;
if(counter_reg == HSYNC_FRONT_PORCH - 2)
r_next <= HS_PULSE;
end
HS_PULSE:begin
hsync_reg <= 1'b0;
if(counter_reg == HSYNC_FRONT_PORCH +
HSYNC_PULSE - 2)
r_next <= HS_BACK_PORCH;
end
HS_BACK_PORCH:begin
hsync_reg <= 1'b1;
if(counter_reg == HSYNC_FRONT_PORCH +
HSYNC_PULSE +
HSYNC_BACK_PORCH - 2) begin
r_next <= HS_DISPLAY;
counter_pixel_reg <= 'h0;
end
end
HS_DISPLAY:begin
hsync_reg <= 1'b1;
counter_pixel_reg <= counter_pixel_reg + 1;
if(counter_reg == HSYNC_FRONT_PORCH +
HSYNC_PULSE +
HSYNC_BACK_PORCH +
HSYNC_DISPLAY - 1) begin
r_next <= HS_FRONT_PORCH;
counter_reg <= 'h0;
end
end
endcase
end
assign o_Hsync = hsync_reg;
assign o_h_display = (counter_pixel_reg >= 1 && counter_pixel_reg <= HSYNC_DISPLAY) ? 1'b1 : 1'b0 ;
assign o_h_pixel = counter_pixel_reg - 1 ;
endmodule
top.v
+46 -13
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@@ -23,10 +23,16 @@ module top #( parameter
input clk,
input btnC,
output [15:0] led,
// 7 segment display
output [6:0] seg,
output dp,
output [3:0] an,
//VGA inputs outputs
output [3:0] vgaRed,
output [3:0] vgaBlue,
output [3:0] vgaGreen,
output Hsync,
output Vsync,
input [15:0] sw, // swiches on board to control effects
output da_mclk,
@@ -50,8 +56,8 @@ assign ad_mclk = master_clk; //output master clock to DAC
//------internal wires and registers--------
wire master_clk; // 11.29 MHz master clock
wire clk_50MHz; //
wire clk_50MHz; // 50 MHz clock
wire clk_25MHz; // 25 MHz clock
wire w_reset;
wire w_internal_reset;
@@ -86,7 +92,8 @@ wire [d_width-1: 0] w_data_from_eff_sw1;
clk_wiz_0 m_clk(
.clk_in1(clk),
.clk_out1(master_clk), // 11.29 MHz master clock for I2S
.clk_out2(clk_50MHz), // 25MHz main clock
.clk_out2(clk_50MHz), // 50MHz main clock
.clk_out3(clk_25MHz), // 25MHz main clock
.locked(w_internal_reset),
.reset(btnC)
);
@@ -122,14 +129,14 @@ io_module #(
// inputs to logic analyzer
.ch0(clk10k),
.ch1(da_sclk),
.ch2(da_lrck),
.ch3(da_sdin),
.ch4(master_clk),
.ch5(ad_sclk),
.ch6(ad_lrck),
.ch7(ad_sdout),
.ch0(Hsync),
.ch1(Vsync),
.ch2(),
.ch3(),
.ch4(),
.ch5(),
.ch6(),
.ch7(),
.JXADC(JXADC) // output for logic analizer
);
@@ -142,10 +149,36 @@ segment4x7 segment4x7(
.dp(dp) // dot on 7segment display
);
clock_divider #(.WIDTH(9))
clock_divider #(.WIDTH(11))
clock_divider7seg (
.clk_in(clk_50MHz),
.clk_out(clk10k)
);
vga_module #(
// .ADDR_WIDTH(ADDR_WIDTH),
// .DATA_WIDTH(DATA_WIDTH),
// .DEPTH(DEPTH),
// .HSYNC_CLKS(HSYNC_CLKS),
// .HSYNC_DISPLAY(HSYNC_DISPLAY),
// .HSYNC_PULSE(HSYNC_PULSE),
// .HSYNC_FRONT_PORCH(HSYNC_FRONT_PORCH),
// .HSYNC_BACK_PORCH(HSYNC_BACK_PORCH),
// .VSYNC_LINES(VSYNC_LINES) ,
// .VSYNC_DISPLAY(VSYNC_DISPLAY) ,
// .VSYNC_PULSE(VSYNC_PULSE) ,
// .VSYNC_FRONT_PORCH(VSYNC_FRONT_PORCH) ,
// .VSYNC_BACK_PORCH(VSYNC_BACK_PORCH)
) vga_module1 (
.clk(clk_25MHz),
.o_vgaRed(vgaRed),
.o_vgaBlue(vgaBlue),
.o_vgaGreen(vgaGreen),
.o_Hsync(Hsync),
.o_Vsync(Vsync),
.o_display(),
.o_addr_rd(),
.i_data_rd()
);
endmodule
vertical_counter.v
+89
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@@ -0,0 +1,89 @@
/////////////////////////////////////////////////////////////////
// Author - Imants Pulkstenis
// Date - 04.04.2020
// Project name - Audio FFT on FPGA
// Module name - vertical counter
//
// Detailed module description:
//
//
//
// Revision:
// A - initial design
// B -
// C -
//
///////////////////////////////////////////////////////////////////
module vertical_counter #(
parameter
VSYNC_LINES = 521,
VSYNC_DISPLAY = 480,
VSYNC_PULSE = 2,
VSYNC_FRONT_PORCH = 10,
VSYNC_BACK_PORCH = 29
)(
//input clk,
input i_Hsync,
output o_Vsync,
output o_v_display,
output [8:0] o_v_line
);
//----------Internal registers, constants and wariables-----
reg vsync_reg = 1'b1;
reg [9:0] counter_reg = 'h0;
reg [8:0] counter_line_reg = 'h0;
reg [2:0] r_state=VS_FRONT_PORCH, r_next=VS_FRONT_PORCH;
localparam [2:0] VS_FRONT_PORCH = 'h0,
VS_PULSE = 'h1,
VS_BACK_PORCH = 'h2,
VS_DISPLAY = 'h3;
//---------state register sequential always block-----------
always @(posedge i_Hsync ) begin
r_state <= r_next;
end
//----next state & outputs, combinational always block------
always@(posedge i_Hsync) begin
counter_reg <= counter_reg + 1;
case (r_state)
VS_FRONT_PORCH: begin
vsync_reg <= 1'b1;
if(counter_reg == VSYNC_FRONT_PORCH - 2)
r_next <= VS_PULSE;
end
VS_PULSE:begin
vsync_reg <= 1'b0;
if(counter_reg == VSYNC_FRONT_PORCH +
VSYNC_PULSE - 2)
r_next <= VS_BACK_PORCH;
end
VS_BACK_PORCH:begin
vsync_reg <= 1'b1;
if(counter_reg == VSYNC_FRONT_PORCH +
VSYNC_PULSE +
VSYNC_BACK_PORCH - 2) begin
r_next <= VS_DISPLAY;
counter_line_reg <= 'h0;
end
end
VS_DISPLAY:begin
vsync_reg <= 1'b1;
counter_line_reg <= counter_line_reg + 1;
if(counter_reg == VSYNC_FRONT_PORCH +
VSYNC_PULSE +
VSYNC_BACK_PORCH +
VSYNC_DISPLAY - 1) begin
r_next <= VS_FRONT_PORCH;
counter_reg <= 'h0;
end
end
endcase
end
assign o_Vsync = vsync_reg;
assign o_v_display = (counter_line_reg >= 1 && counter_line_reg <= VSYNC_DISPLAY) ? 1'b1 : 1'b0 ;
assign o_v_line = counter_line_reg - 1 ;
endmodule
vga_module.v
+92
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@@ -0,0 +1,92 @@
/////////////////////////////////////////////////////////////////
// Author - Imants Pulkstenis
// Date - 04.04.2020
// Project name - Audio FFT on FPGA
// Module name - VGA module
//
// Detailed module description:
//
//
//
// Revision:
// A - initial design
// B -
// C -
//
///////////////////////////////////////////////////////////////////
module vga_module#(
parameter
ADDR_WIDTH = 17,
DATA_WIDTH = 12,
DEPTH = 76_800, // 307_200,//
HSYNC_CLKS = 800,
HSYNC_DISPLAY = 640,
HSYNC_PULSE = 96,
HSYNC_FRONT_PORCH = 16,
HSYNC_BACK_PORCH = 48,
VSYNC_LINES = 521,
VSYNC_DISPLAY = 480,
VSYNC_PULSE = 2,
VSYNC_FRONT_PORCH = 10,
VSYNC_BACK_PORCH = 29
)(
input clk,
output [3:0] o_vgaRed,
output [3:0] o_vgaBlue,
output [3:0] o_vgaGreen,
output o_Hsync,
output o_Vsync,
output o_display,
output [ADDR_WIDTH-1:0] o_addr_rd,
input [DATA_WIDTH-1:0] i_data_rd
);
//-------Internal registers and wires--------------
wire w_v_display;
wire w_h_display;
wire [9:0] pixel;
wire [8:0] line;
//-------sub modules-------------------------------
horizontal_counter #(
.HSYNC_CLKS(HSYNC_CLKS) ,
.HSYNC_DISPLAY(HSYNC_DISPLAY) ,
.HSYNC_PULSE(HSYNC_PULSE) ,
.HSYNC_FRONT_PORCH(HSYNC_FRONT_PORCH) ,
.HSYNC_BACK_PORCH(HSYNC_BACK_PORCH)
) horizontal_counter1 (
.clk(clk),
.o_Hsync(o_Hsync),
.o_h_display(w_h_display),
.o_h_pixel(pixel)
);
vertical_counter #(
.VSYNC_LINES(VSYNC_LINES) ,
.VSYNC_DISPLAY(VSYNC_DISPLAY) ,
.VSYNC_PULSE(VSYNC_PULSE) ,
.VSYNC_FRONT_PORCH(VSYNC_FRONT_PORCH) ,
.VSYNC_BACK_PORCH(VSYNC_BACK_PORCH)
) vertical_counter1 (
//.clk(clk),
.i_Hsync(o_Hsync),
.o_Vsync(o_Vsync),
.o_v_display(w_v_display),
.o_v_line(line)
);
assign o_display = (w_v_display && w_h_display) ;
assign o_vgaRed = o_display ? i_data_rd[11:8] : 4'h0;
assign o_vgaBlue = o_display ? i_data_rd[3:0] : 4'h0;
assign o_vgaGreen = o_display ? i_data_rd[7:4] : 4'h0;
/*
assign o_addr_rd = (((line*HSYNC_DISPLAY) + pixel + 1) == HSYNC_DISPLAY * VSYNC_DISPLAY ) ?
'h0 : ((line[8:1]) * HSYNC_DISPLAY/2 ) + pixel[9:1] + 1 ; // get next pixel
*/
assign o_addr_rd =
((line[8:1]) * 'd320 ) + pixel[9:1];// + 1;
endmodule