Out与 Buffer的区别 ● Entity testl is ● Entity test2 is port(a: in std logic port(a: in std logic b.c: out std logic b: buffer std logic c Out std logic end testl end test2 architecture a of test l is begin architecture a of test2 is b<= not(a) begin c<= b:--Error b<=not(a) end a C<=b end aOut与Buffer的区别 ⚫ Entity test1 is port(a: in std_logic; b,c: out std_logic ); end test1; architecture a of test1 is begin b <= not(a); c <= b;--Error end a; ⚫ Entity test2 is port(a: in std_logic; b : buffer std_logic; c: out std_logic ); end test2; architecture a of test2 is begin b <= not(a); c <= b; end a;