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oled_bitmap_test.v
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/* ------------------------------------------------ *
* Title : Pmod OLED Demo *
* Project : Pmod Collection *
* ------------------------------------------------ *
* File : oled_bitmap_test.v *
* Author : Yigit Suoglu *
* Last Edit : 20/05/2021 *
* ------------------------------------------------ *
* Description : Test for bitmap oled interface *
* ------------------------------------------------ */
//`include "Utils/btn_debouncer.v"
module oled_bitmap_tester(
input clk,
input n_rst,
output rst,
//Interface connections
output power_on,
output display_reset,
output display_off,
output update,
output [4095:0] bitmap,
/*
* bitmap pixel addresses
* | 4095 | 4094 | ... | 3968 |
* | 3967 | ... : |
* | : | 128 |
* | 127 | ... | 1 | 0 |
*/
output [7:0] contrast,
input CS,
input MOSI,
input SCK,
input data_command_cntr,
input power_rst,
input vbat_c,
input vdd_c,
//Board connections
output [7:0] pmod_header,
input [3:0] sw,
input [3:0] btn);
wire [4095:0] defined_bitmaps[0:3];
wire [3:0] bitmap_select;
wire bitmap_update;
reg bitmap_update_d;
reg [1:0] display_content;
always@(posedge clk or negedge n_rst)
begin
if(~n_rst)
begin
display_content <= 2'b0;
end
else
casex(bitmap_select)
4'b1000: display_content <= 2'd3;
4'bx100: display_content <= 2'd2;
4'bxx10: display_content <= 2'd1;
4'bxxx1: display_content <= 2'd0;
default: display_content <= display_content;
endcase
end
assign defined_bitmaps[0] = {128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'hFF00FF00FF00FF00FF00FF00FF00FF00,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF,
128'h00FF00FF00FF00FF00FF00FF00FF00FF};
assign defined_bitmaps[1] = {128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301,
128'h0080C0E0F0F8FCFEFF7F3F1F0F070301};
assign defined_bitmaps[2] = {128'hFFFFFFFFFFFFFFFF0000000000000000,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'hFFFFFFFFFFFFFFFF0000000000000000,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF,
128'h0000000000000000FFFFFFFFFFFFFFFF};
assign defined_bitmaps[3] = {128'hFF00FF00F0F0F0F0FFFFFFFFF0F0F0F0,
128'hFF00FF00F0F0F0F0FFFFFFFFF0F0F0F0,
128'hFF00FF00F0F0F0F000000000F0F0F0F0,
128'hFF00FF00F0F0F0F000000000F0F0F0F0,
128'hFF00FF000F0F0F0FFFFFFFFF0F0F0F0F,
128'hFF00FF000F0F0F0FFFFFFFFF0F0F0F0F,
128'hFF00FF000F0F0F0F000000000F0F0F0F,
128'hFF00FF000F0F0F0F000000000F0F0F0F,
128'hFF00FF00F0F0F0F0FFFFFFFFF0F0F0F0,
128'hFF00FF00F0F0F0F0FFFFFFFFF0F0F0F0,
128'hFF00FF00F0F0F0F000000000F0F0F0F0,
128'hFF00FF00F0F0F0F000000000F0F0F0F0,
128'hFF00FF000F0F0F0FFFFFFFFF0F0F0F0F,
128'hFF00FF000F0F0F0FFFFFFFFF0F0F0F0F,
128'hFF00FF000F0F0F0F000000000F0F0F0F,
128'hFF00FF000F0F0F0F000000000F0F0F0F,
128'hFF00FF00F0F0F0F0FFFFFFFFF0F0F0F0,
128'hFF00FF00F0F0F0F0FFFFFFFFF0F0F0F0,
128'hFF00FF00F0F0F0F000000000F0F0F0F0,
128'hFF00FF000F0F0F0F00000000F0F0F0F0,
128'hFF00FF00F0F0F0F0FFFFFFFF0F0F0F0F,
128'hFF00FF000F0F0F0FFFFFFFFF0F0F0F0F,
128'hFF00FF00F0F0F0F0000000000F0F0F0F,
128'hFF00FF000F0F0F0F000000000F0F0F0F,
128'hFF00FF00F0F0F0F0FFFFFFFFF0F0F0F0,
128'hFF00FF000F0F0F0FFFFFFFFFF0F0F0F0,
128'hFF00FF00F0F0F0F000000000F0F0F0F0,
128'hFF00FF000F0F0F0F00000000F0F0F0F0,
128'hFF00FF00F0F0F0F0FFFFFFFF0F0F0F0F,
128'hFF00FF000F0F0F0FFFFFFFFF0F0F0F0F,
128'hFF00FF00F0F0F0F0000000000F0F0F0F,
128'hFF00FF000F0F0F0F000000000F0F0F0F};
assign bitmap = defined_bitmaps[display_content];
assign rst = ~n_rst;
assign update = bitmap_update_d & ~bitmap_update;
assign bitmap_update = |bitmap_select;
assign power_on = sw[3];
assign display_off = ~sw[3];
always@(posedge clk)
begin
bitmap_update_d <= bitmap_update;
end
assign contrast = {sw[2:0],sw[2:0],sw[1:0]};
assign pmod_header = {vdd_c,vbat_c,power_rst,data_command_cntr,SCK,1'd0,MOSI,CS};
debouncer db0(clk, rst, btn[0], bitmap_select[0]);
debouncer db1(clk, rst, btn[1], bitmap_select[1]);
debouncer db2(clk, rst, btn[2], bitmap_select[2]);
debouncer db3(clk, rst, btn[3], bitmap_select[3]);
endmodule