Question for DE2 board LEDs

[Altera_Forum]

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;

[Altera_Forum]

In my opinion the after statement is just for simulation purposes. So everything you put into your vhdl-code in this example will take place simultanious. 

 Try a different way to delay your code like usleep or built some kind of counter into the code, but this won't work like you try it right now. But sorry I haven't got a solution right away. Here is a link to an example, where I showed how to delay an led with a modulo-counter, but it is a block design just look into the attachment. http://www.alteraforum.com/forum/showpost.php?p=85568&postcount=6  Good luck!