title: How to convert 8 bits to 16 bits in VHDL?
body: <p>I have an input signal from ADC convertor that is 8 bits (<code>std_logic_vector(7 downto 0)</code>). I have to convert them to a 16 bits signal (<code>std_logic_vector(15 downto 0</code>)) for 16 bits signal processing to the 16 bits system. </p>