Re: [avrdude-dev] help - win2k:ppi (dt006) issues with avrdude, uisp works fine

[Jan-Hinnerk Reichert]

On Wednesday 21 January 2004 10:58, Jan-Hinnerk Reichert wrote:
> On Wednesday 21 January 2004 02:51, Davin Gibb wrote:
> > Hi guys, I'm hoping someone will be able to shed some light on
> > this one!
> >
> > I have a dt006 parallel port programmer. I'm using Win2K. All my
> > software has come from AVR GCC at avrfreaks.net (so I'm using the
> > cygwin compiled avrdude-4.2.0).
> >
> > My parallel port under windows is called 'lpt1', however, I'm on
> > a laptop, so the base address is 0x3bc.
> >
> > uisp works a treat, avrdude (and ponyprog) are no good, below is
> > the output (first success with uisp, then fail with avrdude, yes
> > I have getio.sys loaded).
> >
> > You guys have any clue as to why they are different? Any help
> > greatly appreciated.
>
> Not really ;-)
>
> IMHO lpt3 should be right.
>
> Can you add some "fprintf"s in ppiwin.c and recompile?
>
> Have you double checked the pin-definitions of dt006?
>
> Try avrdude "-v -v -v -v" and see if anything is received (or if it
> is just 0xff over and over again).

I've just read something in the (german-speaking) newsgroup 
"de.sci.electronics" which might be relevant.

Aparently, the OS (was Win98 there) can fake an I/O-access. This would 
happen if the port is used by another program (e.g. a printer 
spooler).

I also took a quick look at uisp-sources, but I couldn't see any 
obvious differences. Perhaps Ted can tell us more, as he is familiar 
with uisp ;-)

/Jan-Hinnerk