How to cast a large std_logic_vector to an array of smaller ones?

Hi Dave,

Thanks a lot for your suggestion - with a few modifications it works as expected :)

On the downside however, the resource-requirements for this unit increase considerably, just by changing:

    TYPE census_line IS ARRAY(0 TO 15) OF UNSIGNED(7 downto 0);
    TYPE census_block IS ARRAY(0 TO 15) OF census_line;

to:

    TYPE census_line IS ARRAY(0 TO 15) OF std_logic_vector(7 downto 0);
    TYPE census_block IS ARRAY(0 TO 15) OF std_logic_vector(127 downto 0);

and using the conversion method mentioned, my design increases from ~1.1k ALMs to 2.3k ALMs.

Any ideas what is going wrong here?

Thanks, Reggi