Re: NI general-purpose counter changes

On Monday 05 February 2007 04:37 am, Klaas Gadeyne wrote:
> I don't see a signal appearing on a scope yet, but I guess this has
> something to do with the following comment in the head of
> gpct_pulse_generator.c?
>
>   * The example assumes the board has already been configured to
>   * route the output signal of the counter to an appropriate
>   * location (you may need to route it to a PFI output line
>   * for example).

No, I think the routing is fixed with the 660x (at least they don't tell 
you how to change it).  I think the problem is the output pin is not 
getting configured as an output.  

With ni_mio_common I use the choose_routing demo (INSN_CONFIG_SET_ROUTING) 
on the PFI subdevice to select what signal to route to a particular pfi 
output.  And I use the dio demo to set the pfi line as an output.  So I 
think something equivalent to the ni_mio_common pfi subdevice needs to 
added to ni_660x (subdevice 0 is free now).  Then it could support 
INSN_CONFIG_DIO_INPUT and INSN_CONFIG_DIO_OUTPUT instructions.

-- 
Frank