Question for DE2 board LEDs

Hi there~

I'm going to control one 7 segment (HEX0) and 8 LEDs on DE2 board using

Quartus2. But, I don't know how to make delay for each LED

First of all, of the 7 segment pins, I use 6 of them to make# 1 and# 2. I think

that it's pretty straightforward because when I press first push button, it will

show# 1, and second push button is pressed,# 2 will show up.

But 8 LEDs need to be delayed. As I said, I going to use two push button as

input signals and each button stands for kind of selection.

Ok! Here is a simple version. what I'm going to do is when I push first push

button, the 7 segment will show# 1, and 8 LEDs start to turn on from the

first LED to 8th LES at each second. Otherwise, when I press 2nd push

button, 7 segment will show# 2 and LEDs need to turn on from 2nd led, 3rd

led, 5th led, 6th led and 8 led.

=====================================================

USE IEEE.STD_LOGIC_1164.all;

ENTITY AutomatedCarWash Is

Port(

KEY0, KEY1 :IN STD_LOGIC;

LEDG0, LEDG1, LEDG2, LEDG3, LEDG4, LEDG5, LEDG6, LEDG7,

HEX00, HEX01, HEX02, HEX03, HEX04, HEX06 :OUT STD_LOGIC);

END AutomatedCarWash;

ARCHITECTURE LEDs of AutomatedCarWash Is

signal AND1, AND2, OR1: STD_LOGIC;

BEGIN

AND1 <= (KEY0 and (NOT KEY1)) after 1 NS;

AND2 <= (KEY1 and (NOT KEY0)) after 1 NS;

OR1 <= AND1 or AND2 after 1 NS;

LEDG0 <= OR1 after 1 NS;

LEDG1 <= OR1 after 1 NS;

LEDG2 <= OR1 after 2 NS;

LEDG3 <= OR1 after 3 NS;

LEDG4 <= OR1 after 4 NS;

LEDG5 <= OR1 after 5 NS;

LEDG6 <= OR1 after 6 NS;

LEDG7 <= OR1 after 7 NS;

END LEDs;

ARCHITECTURE SevenSegment of AutomatedCarWash Is

Signal AND3, AND4, AND5: STD_LOGIC;

BEGIN

AND3 <= NOT KEY0 and NOT KEY1 after 1 NS;

AND4 <= NOT KEY0 and KEY1 after 1 NS;

AND5 <= KEY0 and NOT KEY1 after 1 NS;

HEX00 <= AND5 after 1 NS;

HEX01 <= NOT AND3 after 1 NS;

HEX02 <= AND4 after 1 NS;

HEX03 <= AND5 after 1 NS;

HEX04 <= AND5 after 1 NS;

HEX06 <= AND5 after 1 NS;

END SevenSegment;