Honored Contributor
Honored ContributorIts pretty common for the development kits to have push-buttons, some even label the net for one of the push-buttons as cpu_rstN.
You can code HDL without a reset source, you just have to make sure you initialize the signals correctly, eg.,
signal count : unsigned(WIDTH-1 downto 0) := (others => '0');
...
process
begin
if rising_edge(clk) then
count <= count + 1;
end if;
end process;
