streaming AO: unwanted sample

hi,
I still need help:
comedi and comedilib from cvs and PCI-6031E-board:

If I check the output of the comedilib-demo "ao_waveform" with an oscilloscope, then
I see _one_ additional unwanted extra sample at the beginning, which is 
followed by the expected stream.
Self-written programs have the same behaviour, so it seems to be 
driver-related.

Running the following line in comedi/comedi/drivers/ni_mio_common.c (lines 
854 and 2067):
	ni_ao_win_outl(dev, 0x6, AO_FIFO_Offset_Load_611x);
adds one more unwanted extra sample

(but this line of code is not executed because of the board-type-checking 
if-line)

but I need a way to see only the written data at the output.

I hope that someone has an idea of what is wrong,
Lars

Received on 2004-10-04Z13:31:23