Hello everybody
I am using Labview 6.1 / Window 2000 and a PCI�6110 card (which is a S series not a E series)
As I am discover that the CONVERT* signal is not totally synchronise with the STARTSCAN signal when STARTSCAN signal is provided by an external clock, I would like to find a way to synchronise these two signals. (See http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=506500000008000000F1A80000&USEARCHCONTEXT_CATEGORY_0=_30_%24_12_&USEARCHCONTEXT_CATEGORY_S=0&UCATEGORY_0=_30_%24_12_&UCATEGORY_S=0&USEARCHCONTEXT_QUESTION_0=Problem+with+the+CONVERT*+signal+%28PCI-6110+board%29.&USEARCHCONTEXT_QUESTION_S=0 for more details)
My first idea is to provide the CONVERT* signal and the STARSCAN signal to
the board and make sure that these two output �clock� are synchronised. According to the manual, the CONVERT* can be configured as an input by using the Route signal VI, but how to configure the DAQ to receive it?
My second idea is to provide the SISOURCE signal and use it as a timebase for the DAQ. I understand the SISOURCE signal as an alternative clock to replace the internal 20MHz clock and I suppose that the A/D converter (and even the whole DAQ) use this timebase to run. Is it correct?
So I try to provide this SISOURCE signal to the board by using the AI Clock Config VI:
I connected the SISOURCE signal to PFI 7.
I set the �clock frequency� parameter to �1, �which clock� parameter to 0.
In the �alternate clock rate specification� cluster: �clock period� to �1, �time base source � to 3 (PFI pin) and �timebase signal� to 7 and �timebase to �1�.
But I not sure to understand how do you set the �clock source� and the �clock source string�? Should set the �clock source� to 0
? But if I do this the board uses his own internal timebase and ignore the SISOURCE that I provide.
How to configure properly the DAQ to use an external SISOURCE as timebase?
Thank you for your help.
