/*
 UFCG/CEEI/LABARC
 Laboratório de Organização e Arquiteturas de Computadores - LOAC 
 PROF. Elmar Melcher             http://lad.dsc.ufcg.edu.br/oac
 OBJETIVO: Contador Hexa usando Display 7-segmentos. 
           Clock é KEY1, Reset é KEY0.
 ARQUIVO: Test_HexCount2HEX_v72.sv.txt 
 Atenção
    1. Incluir ao projeto: SEG7_Display.v, SEG7_LUT.v e SEG7_LUT_8.v
    2. Renomear "Test_HexCount2HEX_v72.sv.txt" para Test_HexCount2HEX_v72.sv"
       ao usar no quartus!
 Data: 05/02/2008 \o/
*/

module Test_HexCount2HEX_v72(
	////////////////////////	Clock Input	 	////////////////////////
	input			CLOCK_27,				//	27 MHz
	input			CLOCK_50,				//	50 MHz
	input			EXT_CLOCK,				//	External Clock
	////////////////////////	Push Button		////////////////////////
	input	logic [3:0]	KEY,					//	Pushbutton[3:0]
	////////////////////////	DPDT Switch		////////////////////////
	input	logic [17:0]	SW,						//	Toggle Switch[17:0]
	////////////////////////	7-SEG Dispaly	////////////////////////
	output	logic [6:0]	HEX0,					//	Seven Segment Digit 0
	output	logic [6:0]	HEX1,					//	Seven Segment Digit 1
	output	logic [6:0]	HEX2,					//	Seven Segment Digit 2
	output	logic [6:0]	HEX3,					//	Seven Segment Digit 3
	output	logic [6:0]	HEX4,					//	Seven Segment Digit 4
	output	logic [6:0]	HEX5,					//	Seven Segment Digit 5
	output	logic [6:0]	HEX6,					//	Seven Segment Digit 6
	output	logic [6:0]	HEX7,					//	Seven Segment Digit 7
	////////////////////////////	LED		////////////////////////////
	output	logic [8:0]	LEDG,					//	LED Green[8:0]
	output	logic [17:0]	LEDR,					//	LED Red[17:0]
	////////////////////	LCD Module 16X2	////////////////////////////
	inout	[7:0]	LCD_DATA,				//	LCD Data bus 8 bits
	output			LCD_ON,					//	LCD Power ON/OFF
	output			LCD_BLON,				//	LCD Back Light ON/OFF
	output			LCD_RW,					//	LCD Read/Write Select, 0 = Write, 1 = Read
	output			LCD_EN,					//	LCD Enable
	output			LCD_RS	
);

//Reset assigns
wire reset_n = KEY[0];
wire my_clk = KEY[1];

reg [31:0] bits_display;

assign	LEDG[3:2]	=	~KEY[3:2]; // 03 m.s. Btn set to 03 m.s.leds
assign	LEDR[17:0]	=	SW[17:0]; // Switch to LED red


always @(negedge reset_n or posedge my_clk)
   if (!reset_n) begin
      bits_display <= 0;
   end
   else begin
       bits_display <= bits_display + 1;
   end

SEG7_Display ( .iCLK(CLOCK_50),
               .iDIG( bits_display ),
               .iRST_N(1'b1),
               .iWR(1'b1),
               .oSEG0(HEX0),
               .oSEG1(HEX1),
               .oSEG2(HEX2),
               .oSEG3(HEX3),
               .oSEG4(HEX4),
               .oSEG5(HEX5),
               .oSEG6(HEX6),
               .oSEG7(HEX7)
               );

endmodule