(FPGA) 10M02SCM (小脚丫STEP-MAX10) >> VHDL
Button
程式如下:
library ieee; use ieee.std_logic_1164.all; entity main is port( btn: in bit; led: out bit_vector(7 downto 0)); end main; architecture logic of main is signal cnt:bit_vector(7 downto 0):="11111110"; begin process(btn) is begin if (btn'event and btn = '0') then cnt<= cnt rol 1; end if; end process; led<= cnt; end logic;
依序旋轉位元並且輸出到led
腳位
完成