Re: Simple 8253

On Jul 31, 11:20 am, "Symon" <symon_bre...@xxxxxxxxxxx> wrote:
 if write = '1' then
  irq <=0;
  reload <= dbus;
 elsif falling_edge(clock) then
  if counter = 0 then
   counter <= reload;
   irq <= '1';
  else
   counter <= counter - 1;
   irq <= '0'; -- AUTO EOI
  end if;
 end if;

I know I shouldn't do homework for people but what the hey. Use the write
signal as an asynchronous reset. Also, use numeric.std . It's lovely.

http://www.synthworks.com/papers/vhdl_math_tricks_mapld_2003.pdf

HTH, Syms.

Yes, it definately helps, thank you!

I'll see about that numeric.std

This isn't homework, I'm learning on my own, more or less from
scratch.
If I was a student, I would say so.
.

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