Clock synchronization of a NI-6111 with a NI-6602

[facundo]

Hello,

We are trying to synchronize two boards. One is a NI-6602 and the other one is NI-6111. We have already synchronized both devices using the OUT signal from the 6603 (PFI32) and routing it to RTSI_5. Now we would like to synchronize both onboard clocks. We were able to route the 20MHz clock of the 6602 to RTSI_7 using a DaqMX subVI but when we attempted to read that signal with the NI-6111 using the VI AI clock config, it is not allowing to us to configure the clock source in that VI as RTSI_7. Any ideas?

Thanks

Facundo

[LYu]

Hi facundo,

It appears that you're using DAQmx with the NI-6602 device, but the Traditional DAQ driver (since you're using the AI Clock Config VI) with NI-6111. Is this correct? If so, is there a reason why you're doing so since both boards support DAQmx?

Each device can use one driver at a time. If you're using AI Clock Config, and right click the "Clock Source" and choose Create >> Constant, you should be able to choose "RTSI Connection", and indicate the RTSI pin number. However, unless you have a specific reason, I would recommend using DAQmx for both boards. You can consider LabVIEW shipping examples such as "Multi-Device Synch-Analog Input-Cont Acquisition.vi" as a starting point.

Thanks,
Lesley Y.

[facundo]

Thanks for the prompt response Lesley. We have now solved our first issue and encountered a second. We are now trying to synchronize a NI-5411 (traditional DAQ) with a 6602 (DAQmx) and we are encountering problems. We have been able to synchronize the 5411 with the 6111 and also the 6602 with the 6111 but synchronizing the 5411 with the 6602 is causing errors and issues.

Thanks

Message Edited by facundo on 05-12-2005 10:40 AM

[LYu]

Hi facundo,

Can you go into more detail regarding what kind of error you encountered and how you're going about the synchronization (e.g. how you're routing the singal)?

Thanks,
Lesley