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Synchronizing Multiple CompactRIO Chassis

Hello Group,

 

I have a few questions concerning the Synchronizing Multiple CompactRIO Chassis totorial (http://zone.ni.com/devzone/cda/tut/p/id/4217).  

 

Can this technique be used with NI9239 modules configured for LabVIEW scan interface and calibration mode?

 

Figure 7 of the tutorial suggests the cRIO-9215 samples are read immediately after the scan clock goes high. In LabVIEW scan interface mode, I thought the samples from the cRIO-9215 would be at a constant scan rate?

 

Also in the FPGA portion of the example code, the data samples are written to a FIFO and then read from the FIFO and written again to an output variable. In all applications I have seen the data is written to a FIFO at the FPGA level and then read from the FIFO by the RT controller.

 

TIA,

- Troy

 

 

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Here is another approach that I personally think is more elegant...

 

http://decibel.ni.com/content/docs/DOC-14770

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