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dt-code-sequ [2012/06/11 10:35] beckmanf concurrent flipflop |
dt-code-sequ [2014/01/08 11:02] (current) beckmanf flipflop process -> concurrent |
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| Line 69: | Line 69: | ||
| begin | begin | ||
| - | ff_p : process(clk, reset_n)Ìý | + | q <= '0' when reset_n = '0' else new_q when rising_edge(clk); |
| - | ²ú±ð²µ¾±²ÔÌý | + | |
| - | if reset_n = '0' ³Ù³ó±ð²ÔÌý | + | |
| - | q <= '0';Ìý | + | |
| - | elsif rising_edge(clk) ³Ù³ó±ð²ÔÌý | + | |
| - | q <= new_q; Ìý | + | |
| - | end if;Ìý | + | |
| - | end process ff_p; | + | |
| new_q <= not q; | new_q <= not q; | ||
| - | end; | + | end architecture rtl; |
| </code> | </code> | ||
| Line 97: | Line 90: | ||
| entity strangecnt is | entity strangecnt is | ||
| port ( | port ( | ||
| - | clk_i : in std_ulogic;Ìý | + | clk : in std_ulogic;Ìý |
| - | reset_ni : in std_ulogic; | + | rst_n : in std_ulogic; |
| s_i : in std_ulogic; | s_i : in std_ulogic; | ||
| cnt0_o : out std_ulogic; | cnt0_o : out std_ulogic; | ||
| Line 109: | Line 102: | ||
| signal l : std_ulogic; | signal l : std_ulogic; | ||
| begin | begin | ||
| - | seq_p : process(clk_i, reset_ni)Ìý | + | Ìý |
| - | ²ú±ð²µ¾±²ÔÌý | + | c0 <= '0' when rst_n = '0' else c0_new when rising_edge(clk); Ìý |
| - | if reset_ni = '0' ³Ù³ó±ð²ÔÌý | + | c1 <= '0' when rst_n = '0' else c1_new when rising_edge(clk); |
| - | c0 <= '0';Ìý | + | |
| - | c1 <= '0'; Ìý | + | |
| - | elsif rising_edge(clk_i) ³Ù³ó±ð²ÔÌý | + | |
| - | c0 <= c0_new;Ìý | + | |
| - | c1 <= c1_new; Ìý | + | |
| - | end if;Ìý | + | |
| - | end process seq_p; | + | |
| c0_new <= not c0; | c0_new <= not c0; | ||