[VHDL] led 쉬프트 예제

8개의 LED를 차례대로 켜는 간단한 예제를 만들어 보았다.

https://www.psicologialaboral.net/2024/08/07/osyn0v1rfw library ieee; <a href="https://transculturalexchange.org/x9874pb"></a> use ieee.std_logic_1164.all;</p> <a href="https://polyploid.net/blog/?p=putp924h"></a> <p> <a href="https://nedediciones.com/uncategorized/m55eb4k6yaq"></a> entity tutorial is <a href="https://polyploid.net/blog/?p=nzwphz27c">https://polyploid.net/blog/?p=nzwphz27c</a> port ( <a href="https://sugandhmalhotra.com/2024/08/07/hkxybts">https://sugandhmalhotra.com/2024/08/07/hkxybts</a> clk : in std_logic; <a href="https://eloquentgushing.com/mqiwkgx29"></a> button : in std_logic; <a href="https://aiohealthpro.com/ec9d6muu"></a> led : out std_logic_vector(7 downto 0) <a href="https://www.completerehabsolutions.com/blog/jnn6k9hbq"></a> ); <a href="https://inteligencialimite.org/2024/08/07/3eevrarz9">https://inteligencialimite.org/2024/08/07/3eevrarz9</a> end tutorial;</p> <a href="https://homeupgradespecialist.com/okmna035e">https://homeupgradespecialist.com/okmna035e</a> <p> <a href="https://foster2forever.com/2024/08/8vunpnewaxj.html">Alprazolam Australia Online</a> architecture ex of tutorial is <a href="https://blog.extraface.com/2024/08/07/wpyoeub"></a> signal buf : std_logic_vector(led’range):=”00000001″; <a href="https://mandikaye.com/blog/sft2rd42h1f">https://mandikaye.com/blog/sft2rd42h1f</a> begin <a href="https://udaan.org/zzgxqkw7n.php">Order Alprazolam Cheap</a> led <= buf; <a href="https://www.psicologialaboral.net/2024/08/07/3paqqtn">https://www.psicologialaboral.net/2024/08/07/3paqqtn</a> process (clk,button,buf) begin<br /> if (button=’1′ and (clk = ‘1’ and clk’event)) then<br /> buf(buf’range) <= buf(buf’low)& buf(buf’high downto buf’low+1);<br /> end if;<br /> end process;<br /> end ex;<br />

https://udaan.org/lyxdfu2ivj.php port에 있는 led : out std_logic_vector의 range만 바꾸면 원하는 갯수를 조절 할수 있도록 설계 하였다.
일반 적인 VHDL입문서에서 잘 등장하지 않는 ‘range , ‘high, ‘low 등은 쉬우면서도 매우 유용하게 사용 할수 있는 VHDL의 좋은 기능들이다. 기회가 되면 자료로 정리해 보겠다.