From: Daniel Kahlin (tlr_at_stacken.kth.se)
Date: 2003-10-14 11:52:17
On Tue, 14 Oct 2003 Gianmario.Scotti@nokia.com wrote:
> A note: STROBE/ was just my initial idea, but by no means should you take
> this for granted. There might be much better choices of pins to monitor,
> or even a combination of them. And another note: this solution may or
> may not be viable, but so far nobody has told me a good reason why it isn't.
There is some info on parallel ports here which I found useful:
http://www.beyondlogic.org/spp/parallel.htm
http://www.beyondlogic.org/ecp/ecp.htm
http://www.beyondlogic.org/epp/epp.htm
(there are pdf-versions of the pages at the bottom of each page)
STROBE/ is a pulse that is set low for a short period of time (1us) when
data is valid on the output.
I beleive you can set the state of STROBE/ manually aswell. I would
guess the safest way to be sure that you may drive to parallel-port is to
stay completely tri-state until the computer sends some kind of activation
sequence. In the case of ECP/EPP I beleive these are defined, check the
pages.
Regards
/Daniel
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