- From: Luc Lefebvre <luc.lefebvre_at_mcgill.ca>
- Date: Tue, 20 May 2003 11:55:08 -0400 (EDT)
Hi Frank, I built the latest comedi modules from cvs this AM. I still have the issue that the "early" data points from cmd in streaming mode are a mix of 0xffff and 0x0000 in stead of the 0x0800 for grounded single ended inputs <which is what I have>... current config is: libcomedi from cvs comedi modules from cvs built for kernel 2.4.18 DAQ NI-DAQCard-6062E distribution Debian woody Any idea as to what could be going on? I know that the DAQ has an onboard 8k FIFO. If I use cmd with the default which is 1000*4 samples (2 bytes each, ie. fill up FIFO), all is well. I get the expected 2047-2048 type values wall to wall. If I go to more than 1000 scans <1020 was OK, 1025 had the 0xffff> I start to get failures. Let me know if there is anything that I can do to help further narrow down the problem. cheers~ -- Luc Lefebvre In the beginner's mind there are many possibilities, in the expert's mind there are few. <Shunryu Suzuki> Key fingerprint = D2E5 5E35 B910 6F4E 0242 EC63 0FD9 96D0 C7F4 784E
Received on 2003-05-20Z14:55:08