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VHDL Code Help

Altera_Forum
Honored Contributor II
1,709 Views

Hi everyone, I'm new FPG and VHDL, I am trying write this code: 

 

Pushing a SW1 will turn on the 4 LEDs on the board one by one from up to down every 2 seconds until all LEDs are lit. 

 

 

Your help is highly appreciated.
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Altera_Forum
Honored Contributor II
540 Views

What do you expect us to do? We don't write the code for you, but we can help you when you have something written. 

I suggest drawing the circuit you want and then think about how to code it. Mabe try to make the leds go on and off on a button push first, then you can add the effects later.
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Altera_Forum
Honored Contributor II
540 Views

Whats the problem we can help with?

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Altera_Forum
Honored Contributor II
540 Views

) why do not start reading books, look for reference design, surf Altera website for university program materials 

what behaviour do you expect? 

1. Switch -> will it be simple like light switcher? what about bouncing? do you need register? 

2. LEDs -> could you draw a time-diagram for yourself? 

3. timer -> implement it later, on the start of project rely on LED switch every clock-cycle. You should use clock your scheme won't be pure combinatorial. 

 

If you able to answer this question you probably write code. So others can take a look .
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