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oled_sim.v
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oled_sim.v
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/* ------------------------------------------------ *
* Title : Pmod OLED simulation *
* Project : Pmod Collection *
* ------------------------------------------------ *
* File : oled_sim.v *
* Author : Yigit Suoglu *
* Last Edit : 16/05/2021 *
* ------------------------------------------------ *
* Description : Simulation code for Pmod OLED *
* ------------------------------------------------ */
`timescale 1ns / 100ps
//`include "Pmods/OLED/Sources/oled.v"
module tb();
reg clk, rst,ext_spi_clk;
wire CS, MOSI, SCK, data_command_cntr, power_rst, vbat_c, vdd_c;
reg power_on, display_reset, display_off, update;
reg [511:0] display_data;
reg [1:0] line_count;
reg [7:0] contrast;
reg [7:0] display_array[0:63];
wire [7:0] character_code;
wire [63:0] current_bitmap;
integer i;
always #5 clk <= ~clk;
always #20 ext_spi_clk <= ~ext_spi_clk;
//Map display_data into display_array
always@* //Inside of this always generated automatically
begin
display_array[0] = display_data[511:504];
display_array[1] = display_data[503:496];
display_array[2] = display_data[495:488];
display_array[3] = display_data[487:480];
display_array[4] = display_data[479:472];
display_array[5] = display_data[471:464];
display_array[6] = display_data[463:456];
display_array[7] = display_data[455:448];
display_array[8] = display_data[447:440];
display_array[9] = display_data[439:432];
display_array[10] = display_data[431:424];
display_array[11] = display_data[423:416];
display_array[12] = display_data[415:408];
display_array[13] = display_data[407:400];
display_array[14] = display_data[399:392];
display_array[15] = display_data[391:384];
display_array[16] = display_data[383:376];
display_array[17] = display_data[375:368];
display_array[18] = display_data[367:360];
display_array[19] = display_data[359:352];
display_array[20] = display_data[351:344];
display_array[21] = display_data[343:336];
display_array[22] = display_data[335:328];
display_array[23] = display_data[327:320];
display_array[24] = display_data[319:312];
display_array[25] = display_data[311:304];
display_array[26] = display_data[303:296];
display_array[27] = display_data[295:288];
display_array[28] = display_data[287:280];
display_array[29] = display_data[279:272];
display_array[30] = display_data[271:264];
display_array[31] = display_data[263:256];
display_array[32] = display_data[255:248];
display_array[33] = display_data[247:240];
display_array[34] = display_data[239:232];
display_array[35] = display_data[231:224];
display_array[36] = display_data[223:216];
display_array[37] = display_data[215:208];
display_array[38] = display_data[207:200];
display_array[39] = display_data[199:192];
display_array[40] = display_data[191:184];
display_array[41] = display_data[183:176];
display_array[42] = display_data[175:168];
display_array[43] = display_data[167:160];
display_array[44] = display_data[159:152];
display_array[45] = display_data[151:144];
display_array[46] = display_data[143:136];
display_array[47] = display_data[135:128];
display_array[48] = display_data[127:120];
display_array[49] = display_data[119:112];
display_array[50] = display_data[111:104];
display_array[51] = display_data[103:96];
display_array[52] = display_data[95:88];
display_array[53] = display_data[87:80];
display_array[54] = display_data[79:72];
display_array[55] = display_data[71:64];
display_array[56] = display_data[63:56];
display_array[57] = display_data[55:48];
display_array[58] = display_data[47:40];
display_array[59] = display_data[39:32];
display_array[60] = display_data[31:24];
display_array[61] = display_data[23:16];
display_array[62] = display_data[15:8];
display_array[63] = display_data[7:0];
end
oled #(10000) uut(clk, rst, ext_spi_clk,character_code,current_bitmap, CS, MOSI, SCK, data_command_cntr, power_rst, vbat_c, vdd_c, power_on, display_reset, display_off, update, display_data, line_count, contrast, 1'b0, 1'b0, );
oled_decoder decoder(character_code,current_bitmap);
initial
begin
clk = 0;
rst = 0;
ext_spi_clk = 0;
contrast = 8'h7f;
line_count = 2'h3;
for (i = 0; i < 64; i = i + 1)
begin
{display_data[i*8+7],
display_data[i*8+6],
display_data[i*8+5],
display_data[i*8+4],
display_data[i*8+3],
display_data[i*8+2],
display_data[i*8+1],
display_data[i*8]} = 8'h10 + (i % 10);
end
power_on = 0;
display_reset = 0;
display_off = 0;
update = 0;
#3
rst = 1;
#7
rst = 0;
#20
power_on = 1;
#120000
contrast = 8'h7A;
#10000
update = 1;
#10
update = 0;
end
endmodule