Re: NI-6229 configuring PFI

On Thursday 18 October 2007 06:59, Carlos Jiménez Leal wrote:
> Hello,
>
> I'm trying to use the programable digtal input/outputs of 6229 (PFI
> X/PX.X). I've achieved to read from demos like 'choose-routing', 'dio'
> and 'inp', but trying to do it at the same way with the 'outp' doesn't
> work.
>
> Read example:
>
> ./choose_routing (0-2) -c(0-15) -s7 -f/dev/comedi0

choose_routing has no effect on input.

> ./dio -f/dev/comedi0 -s7 -c(0-15) 0
> ./inp -f/dev/comedi0 -s7 -c(0-15)
>
> I read correctly the values 1/0 wether I aply 5V voltage or not.
>
> Write example:
>
> ./choose_routing (0-2) -c(0-15) -s7 -f/dev/comedi0
> ./dio -f/dev/comedi0 -s7 -c(0-15) 1
> while (true) do ./outp -f/dev/comedi0 -s7 -c(0-15) (0|1|5|10); done
>
> Measuring with a tester at the selected channel, it shows allways the
> value of 0.

> Making the routing, it doesn't mather which number I configure (0-2), in
> every case, I view all the PFI's. I supose that configuring the
> subdevice it is sufficient.

I don't know where you got 0-2 from, but you should be using the values in 
enum ni_pfi_routing (and following inline function) in comedi.h.  It 
sounds like you want 16.

-- 
Frank