- From: Steve Gensemer <sgenseme_at_abacus.bates.edu>
- Date: Tue, 23 Jul 2002 16:13:11 -0400 (EDT)
Hello folks, I am trying to set up a NI-1200AI board, using the lab-pc driver, and everything goes exactly according to plan (modprobe, comedi_config, ./info) until I try to run the actual board and get nothing. Analog inputs (comedi_data_read) always return 65535 (which inpn converts to 155.037 Volts) even though it's a 12-bit board. Digital inputs always return 1 regardless of how they are wired. Digital outputs are always low. The odd thing is, I get no error messages at any point using inp, outp, or dio. I tried three identical cards and got the same results, so I don't think it's a quirk with just one card. On the other hand, all of these cards seem to have been modified by hand (by NI) as there are several jumpers on them - perhaps NI was trying to fix a mistake in their design? Any ideas, before I give up on this? It seems to me that at the very least, inp should give me a number between 0 an 4095 on the analog inputs, right? Steve Steve Gensemer Department of Physics and Astronomy 327 Carnegie Science Bldg Bates College sgenseme_at_bates.edu www.bates.edu/~sgenseme
Received on 2002-07-23Z19:13:11