Re: how to use internal trigger with NI PCI-6036E

>>>>> "David" == David Schleef <ds_at_schleef.org> wrote:

David> On Thu, Apr 17, 2003 at 12:48:37PM +0200, Alberto LUSIANI
David> wrote:
>> Hello
>> 
>> does anybody have any working example of using an internal trigger
>> with the NI PCI-6036E?
>> 
>> I would like to assemble a command with start_src = TRIG_INT and
>> then use (presumably) PFI/0-TRIGGER_IN to trigger a scan, with a
>> comedi I/O operation.

David> TRIG_INT is for software triggers such as used by the
David> ao_waveform example.  What are you really trying to do?

I would like to trigger an analog input scan with a digital output
write directly on the trigger input line of the NI PCI-6036E.

At the moment I write a pulse on one of the 8 DIO lines of the card,
and I have an electrical physical connection from this digital output
to the trigger input (PFI/0).  I think (from the card specifications)
that it is also possible to trigger the analog input scan by writing
directly to the trigger input line, and I wonder if anybody succeeded
in getting this done with comedi.

In addition to TRIG_INT I also tried to use TRIG_EXT and the DIO line
#0 of subdevice #7, with no success.

Greetings,
-- 
Alberto

Received on 2003-04-18Z07:45:16