Can I use an external reference clock for cRIO?

[maherhome]

We have an application where multiple high-speed clocks cause radiation interference.  

Is there a way to provide an external reference clock for the 40 MHz cRIO clock?

Is there a way to synchronize a 9144's (expansion chassis) clock to the cRIO controller clock?  I understand EtherCAT does it's own synchronization - I'm talking about synchronizing the 'base' 40 MHz clock.

Thanks,

Steve

[DylanC]

Hi maherhome,

Which cRIO are you using? Unfortunately, there isn't a way to export/import clocks like the FlexRIO line: http://digital.ni.com/public.nsf/allkb/7958A6FA2ABDB84A862575910079B926?OpenDocument

We do offer a module which you can use to synchronize http://sine.ni.com/nips/cds/view/p/lang/en/nid/210832 the chassis, but the FPGA clock's will not be. What modules are you looking to synchronize? The clocks should never be more than ~25ns apart.

DylanC

[maherhome]

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@DylanC wrote:

Hi maherhome,

Which cRIO are you using? Unfortunately, there isn't a way to export/import clocks like the FlexRIO line: http://digital.ni.com/public.nsf/allkb/7958A6FA2ABDB84A862575910079B926?OpenDocument

9082

We do offer a module which you can use to synchronize http://sine.ni.com/nips/cds/view/p/lang/en/nid/210832 the chassis, but the FPGA clock's will not be. What modules are you looking to synchronize? The clocks should never be more than ~25ns apart.

Steve

DylanC

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