Incorrect range

I am using National Instruments pci-6071e card and
comedi-0.7.65/comedilib-0.7.19. The problem is when I use
comedi_get_range() to query the output range of subdevice 1(i.e. analog
output) with range index 2 (range should be +/- EXTREF), it always
returns [-1, 1] no matter EXTREF is disconnected or connected to 1Vol or
1.2Vol. I looked the source code of comedi and comedilib, but I didn't
see any hardcoded parameters for pci-6071e. So is this a problem of the
card or comedi? Any idea? Thank you very much!

Jason

Received on 2002-12-11Z19:22:47