23 lines
		
	
	
		
			465 B
		
	
	
	
		
			VHDL
		
	
	
	
	
	
			
		
		
	
	
			23 lines
		
	
	
		
			465 B
		
	
	
	
		
			VHDL
		
	
	
	
	
	
| architecture studentVersion of ex_24_1_1 is
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| 
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|   signal counter : unsigned(counterBitNb-1 downto 0);
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| 
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| begin
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| 
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|   process(clock, reset) begin
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|     if reset = '1' then 
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|       counter <= (others => '0');
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|     elsif rising_edge(clock) then 
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|       if en = '1' then
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|         if up_down = '1' then
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|           counter <= counter + 1;
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|         else
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|           counter <= counter -1;
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|         end if;
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|       end if;
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|     end if;
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|   end process;
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| 
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|   position <= counter;
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| end studentVersion;
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