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Hello,
Am a newbie with verilog and i have been trying to write a verilog code to display some characters on the lcd module on the cyclone 3 board...any help will be appreciated...my code is posted below..is this a good starting point or am totally off: module lcd_display (clk,lcd_rs, lcd_rw, lcd_e, lcd_code); input clk; //input user_dipswitch2; //input user_dipswitch3; //input [15:0]counter_out; reg [15:0] count=0; output reg lcd_rs ; output reg lcd_rw ; inout reg [3:0]lcd_code; output reg lcd_e; initial begin lcd_rs = 0; lcd_rw = 0; lcd_e = 0; end always @ (posedge clk) // if (user_dipswitch2) //initialize lcd begin count = count + 1; lcd_e = 1; case (count) 16'h000f: lcd_code = 4'b0010; // function set 16'h001f: lcd_code = 4'b0010; 16'h0022: lcd_code = 4'b1100; 16'h0797: lcd_code = 4'b0000; // display on 16'h079f: lcd_code = 4'b1110; 16'h1692: lcd_code = 4'b0000; //clear display 16'h169a: lcd_code = 4'b0001; 16'he845: lcd_code = 4'b0000; //entry mode set 16'he84c: lcd_code = 4'b0110; 16'hf200: lcd_code = 4'b0100; // set CGRAM address; 16'hf20f: lcd_code = 4'b0110; 16'hffaf: lcd_code = 4'b1000; //set DDRAM address 16'hfffe: lcd_code = 4'b0110; 16'hffff: begin lcd_rs = 1; lcd_code = 4'b1111; end endcase end // always @ (posedge clk) // if (user_dipswitch3) // begin // count = 0; // lcd_rs = 1; // lcd_code <= counter_out [15:12]; // lcd_code <= counter_out [11:8]; // lcd_code <= counter_out [7:4]; // lcd_code <= counter_out [3:0]; // end // endmoduleLink Copied
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thanks....
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cool......
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