Re: AO waveforms on PCI-6713

> On Tuesday 30 March 2004 07:01 pm, Don Taber wrote:
> > I just installed comedi 0.7.68 with comedilib 0.7.21.  I have a single
> > PCI-6713 card. Single inputs and outputs work fine, but the ao_waveform
> > demo (and my attempts to imitate it) crash with perror reporting "write:
> > Broken pipe".
> 
> Yes, it should work.  You need to modify ao_waveform to preload more 
> samples before starting the output command, as the underflow detection is 
> rather coarse-grained (and the board's hardware fifos are large).

Frank,

Works as advertised.  Thanks for your help.

With the NI libraries there is a way to disable FIFO mode and just
let the card churn through a circular buffer in which the channels'
waveforms are interleaved.  Any way to set this up with comedi?

Don

Received on 2004-04-01Z00:36:24