I have a piplined structure. interations is a generic value. It
controls the delay.
Everytime I got undefined value in gtkwave.
When I uncomment the loop and make s to a constant, then I have defined
values.
The problem is s is a variable. The correct stage of a variable is
critical.
The loop is often used construct. GHDL has with this a problem.
Rene
type value_type is array (0 to interations) of signed (out_bits-1 downto 0);
signal value:value_type;
--value_pipe(0) is wirten in an other process;
process(clk)
if( clk'EVENT and clk='1') then
value_pipe(0)<=in_a;
end if;
end process;
PROCESS(clk)
begin
if( clk'EVENT and clk='1') then
for s in 1 to interations loop
value_pipe(s)<=value_pipe(s-1);
end loop;
end if;
end process;
----
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