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  1. heeckhau

    what's wrong with this interger counter?

    You should use a reset clause to initialize your counter. if reset=1 then counter <= 0; elsif rising_edge(clk) then ... end if;
  2. heeckhau

    variable used in for loop

    You could try to use sll (shift left logical), but I am not sure all tools can synthesize this. You can also use shift_left from ieee.numeric_std, but then you will have to convert your bit_vector to unsigned first.http://www.sigasi.com

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