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Altera_Forum's avatar
Altera_Forum
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13 years ago

How can I detect vector changes in other processes?

Hi All, I’d like to experiment with various frequency & duty cycles to control a little motor with PWM. I’m using a DE0 devboard and the frequency & duty cycles are user programmable with ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

register them, and then look for a rising or falling edge on inside the clocked process: 


if rising_edge(clk) then
  if input = '1' and input_reg = '0' then --rising edge
    --reset
  end if;
  input_reg <= input;
end if;