RTSI pinout for the PCI NI-4472 DSA

[Sebulba]

What is the RTSI pinout for the 4472 DSA?

Thanks,

Sebulba

[Todd S.]

Sebulba:

RTSI pinouts are the same for any PCI card.  See the KnowledgeBase article below for details:

http://digital.ni.com/public.nsf/websearch/AD2D553F55A07BBF8625650D005F1F00?OpenDocument

Hope that helps!

Todd S.

[Sebulba]

Hi Todd,

Ah, yes, I found this information before posting this question. However, I have some problems with the documentation. When I check the “Device Routes” tab in MAX for the NI-4472 I see RTSI8 and RTSI9 in addition to the lower channels.

RTSI8 and 9 do not appear in the RTSI pinout table in the document to which you refer. Also in that table there is mention of RTSI_OSC which does not appear as a signal in the table in MAX. Could you please clarify?

Thanks,

Sebulba

Message Edited by Sebulba on 03-17-2006 02:14 PM

[Todd S.]

Sebulba:

Sorry for the delayed response.  As far as I can tell, and I've confirmed this with others here in our department, those RTSI lines have not function for the 4472.  This could mean one of three things:

1)  They exist to allow for possible future possible expansion of the firmware for the 4472

2)  Since they appear in MAX, and if they have a green color next to their name, you can use them to send data across the different PCI-4472's you have.

3)  They are internally used for oscillation/timebase signals.

Please let me know what you need to do.  If they impact your design I'd be happy to investigate further.

Regards,

Todd S.

[Sebulba]

Thanks for the reply, Todd S.

So it looks like I have been monitoring the proper line on the RTSI connector. I am basically just trying to figure out a way to get a clock signal on one of the RTSI lines to synchronize three DSA cards. I wanted to monitor the line to make sure that things were working as I thought (a bottoms-up approach.) The complication is that I have to do this in MATLAB and I would like to use as much of the functions in the data acquisition toolbox as possible. But as I dig deeper into this problem I am seeing that the data acquisition toolbox goes not allow to sync two cards.

Regards,

Sebulba