[Uisp-dev] A second patch

[Margarita Manterola]

Hi!

There was something weird in the patch I sent a couple of days ago,
and it was the need of a non-inverted reset, when AT89XXX micro
controllers _do_ have a reset that is the inverted AVR's reset.

After talking this over with Wojtek Kaniewski and investigating a bit
more, I found a page that explained what was happening:
http://www.beyondlogic.org/spp/parallel.htm#2

The cable I'm using is the ATDH, which resets through pin 17, which is
hardware inverted.  Seeing this, I made a few changes to the patch,
dropping my -d89S52 parameter, and adding the inverted reset directly
to the cable configuration.
I also added a couple of comments about the pins that are low active.

Also, I changed the way in which the -dinvert parameter works. 
Instead of setting the values directly to 1, it switches the value the
parameter has to its contrary.

This patch is a little bit more intrusive than the other one, but I
think it's quite better. As the previous one, it's done taking the
latest release (20040311) as base.

Please tell me what you think of it.

-- 
Besos,
Marga

atdh.patch
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