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Altera_Forum's avatar
Altera_Forum
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11 years ago

what is the diffirent between 2 part codes

here process(current_state,data_in) begin next_state<=current_state; case current_state is when idel => if data_in='1' then next_state<=d1; else next_state<=idel; end if; ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

in this code: 


when idel => 
   if data_in='1' then       
        next_state<=d1;            
  end if;

if data_in = '1' transition occurs to d1

if data is not '1' then state stays as d1 (but in your case state becomes current_state, which may still be correct or not as I don't see

that part of your code. This is because you have default statement at top of process)