Re: INT_TRIG for scans...

Ok, thanks by your help ;) now it's working...

{}'s

2007/6/18, Ian Abbott <abbotti_at_mev.co.uk>:
>
> Paulo André Capellari wrote:
> > hmmm, so, a command terminates only when the "EOA" signal is sended by
> > the device??
>
> Sort of.  The command is marked as no longer running when the device
> signals an EOA event, or an error event.  However, the subdevice remains
> "busy" until the data has been read.
>
> Looking at the code more closely, I think I was wrong earlier about
> having to do a final 'read' to complete the command.  Still, the
> 'comedi_cancel' is a sure-fire way to prepare the subdevice to accept
> another command.
>
> > 2007/6/18, Ian Abbott <abbotti_at_mev.co.uk <mailto:abbotti_at_mev.co.uk>>:
> >
> >     On 14/06/07 17:49, Paulo André Capellari wrote:
> >      > I wont run simultaneously commands, but various in sequence:
> >      >
> >      > ... some configurations...
> >      > comedi_command_test(dev_comedi, &cmd);
> >      > comedi_command(dev_comedi, &cmd);
> >      >
> >      > ...
> >      > some code
> >      > ....
> >      > (at this point, I'm sure that the previous command have been
> >     terminated)
> >      >
> >      > ...another configurations...
> >      > comedi_command_test(dev_comedi, &cmd);
> >      > comedi_command(dev_comedi, &cmd);
> >      > ....
> >      >
> >      > why only the first command executes?
> >
> >     If it's a command on the 'read' subdevice, it may be waiting for you
> to
> >     do a final 'read' to complete the command.  This should return 0 to
> >     indicate that the acquisition completed without error.
> >
> >     Rather than do a final 'read', you could use the 'comedi_cancel'
> >     function to terminate the previous command on the subdevice.
> >
> >     --
> >     -=( Ian Abbott _at_ MEV Ltd.    E-mail: <abbotti_at_mev.co.uk
> >     <mailto:abbotti_at_mev.co.uk>>        )=-
> >     -=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
> >
> >
> >
> >
> > --
> > Paulo André
> > Ciência da Computação - Unioeste/PTI
>
>
> --
> -=( Ian Abbott _at_ MEV Ltd.    E-mail: <abbotti_at_mev.co.uk>        )=-
> -=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
>



-- 
Paulo André
Ciência da Computação - Unioeste/PTI

Received on 2007-06-18Z22:40:27