now have it connected to a desktop. Right now I've got a basic
blinking LED program running. I'm happy now. It also seems to work
with the cable connected. BTW are you the author of the OOPic book I
see on Amazon?
--- In oopic@yahoogroups.com, ooPIC Tech Support <dennis.clark@...>
wrote:
>
> Mike,
>
> First off I'd try pulling the programming cable off and see if
the
> code starts to run. Also you are using the programming port (the
single
> connector) and not one of the two network connectors right?
>
> DLC
>
> Mike Martin wrote:
> > Thanks Richard, for your advice. It's a bit over my head though.
To be
> > honest.I'm an IT teacher with a soldering iron. I'm a fast
learner but with
> > no real formal electronics training - but I'm very interested and
> > appreciative none-the-less. We have nothing like the OOPic here
in OZ -
> > which makes it really attractive since I teach the kids VB and
OOPic just
> > looks like a fantastic platform to me to teach them real world
hardware
> > programming (the only other opportunity is LEGO MindStorms -
which doesn't
> > really cut it). The "VB like" IDE really suits me in the
classroom because
> > there is a direct cognitive connection to the hardware and
relates directly
> > to the VB IDE I teach for other outcomes. Please don't take
offence but the
> > really hi-tech advice is wasted on me right now and not really
worth your
> > time. But thanks for your good info all the same. I'll archive it
for future
> > reference. What do you think about my idea of just buying another
new OOPic
> > and starting afresh?
> >
> > Mike M.
> >
> >
> >
> > _____
> >
> > From: oopic@yahoogroups.com [mailto:oopic@yahoogroups.com] On
Behalf Of
> > rtstofer
> > Sent: Friday, 11 April 2008 12:05 AM
> > To: oopic@yahoogroups.com
> > Subject: [oopic] Re: Dead OOPic?
> >
> >
> >
> > --- In oopic@yahoogroups. <mailto:oopic%40yahoogroups.com>
com, "Mike
> > Martin" <xaviour2me@> wrote:
> >
> >> Hi All
> >> You might recall my laptop parallel port had a problem
communicaing
> >> with the OOPic. I got all the parts and built the active cable
from
> >>
> > the
> >
> >> files section that Dennis suggested (thanks Dennis) and I can
now
> >> detect it. So I tried a very simple flashing led project.
> >>
> > Everything
> >
> >> looks like it's working and the IDE says it downloads - the
> >>
> > progress
> >
> >> bar shows it downloading - etc but the project didn't work. When
I
> >>
> > read
> >
> >> the data back up from the eeprom there's nothing there. I know
> >>
> > there's
> >
> >> power on the board because I can ground an led in the
prototyping
> >>
> > area
> >
> >> and it lights up. I'm going to just buy another OOPic I think
but
> >>
> > does
> >
> >> anyone have any advice before I do? Also I'd like to get Dennis'
> >>
> > book
> >
> >> but here in Australia it's out of print and the only ones I can
see
> >>
> > at
> >
> >> Amazon don't deliver here for some reason. Any clues?
> >>
> >>
> >
> > There's one other 'gotcha' to parallel programming: you MAY have
to
> > remove the programming cable to get the program to run. If you
want
> > to do debugging, you need to plug the cable in to the other I2C
> > connector.
> >
> > But that doesn't explain why you can't read the EEPROM. The
problem
> > is that it is almost impossible to troubleshoot I2C without a
logic
> > analyzer. You can certainly see part of the operation with an
> > oscilloscope but to really capture the traffic requires a logic
> > analyzer.
> >
> > Sometimes it is possible to get an clue about the signals with a
> > logic probe like http://www.pololu.
> > <http://www.pololu.com/catalog/product/314>
com/catalog/product/314 At least
> >
> > you can see/hear if the signals are toggling. There are a number
of
> > logic probes on eBay.
> >
> > At idle, both the clock and data lines should be high, A transfer
> > starts when the data line goes low while the clock line is still
high.
> >
> > Richard
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
> --
> ------------------------------------------------------
> Dennis Clark ooPIC Tech Support
> www.oopic.com
> ------------------------------------------------------
>
------------------------------------
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