how to enable 50Mhz Clock in DE2 board

[Altera_Forum]

i have downloaded my program to DE2 board, but it seems no clock , so the sequence is not working for the program , all LEDs are on all the time, when i push the reset which is made through the push botton, all lights go off, so i think the clock is not enabled, is here any one who could help me 

thanks to every one

[Altera_Forum]

As the user manual clarifies, the 50 MHz clock connects to FPGA pin N2, it's also declared as pin CLOCK_50 in most example designs. You just have to use it in your design.

[Altera_Forum]

thank you alot for the reply i alreday use the CLOCK_50 in my VHDL design instaed of clk that i used , but it is still the same, i think i need to make some dely between every state as the frequncy is 50Mhz(200 ns) and can not be recognized by human being, the machine moves from state a and in the next rising edge , it moves tio state B and then C, so can not see flashing

[Altera_Forum]

If I understand right, you now discovered, that your design is working as expectable. 

 Your considerations about the impossibility of tracing design operation at 50 MHz by looking at a LED display sound plausible, if no external events are needed to advance the state machine.  Normally, people are feeding a 50 MHz clock to a design, because they want it to act fast. To visualize it's operation, you can use test tools like SignalTap - or a slow clock.

[Altera_Forum]

thank you so much for the reply, i do test my program by manaual clock it works fine, and i can trace the changing of the LEDs, but i really want to try the program by the internal clock, so how to slow the clock to the frequncy that i can trace my LEDs changes, 

your help is highly apprecaited