Hi,
 
I am currently working with LabVIEW 8.5  FPGA and PXI 7831R card for HDLC protocol Implementation.To start with I refered implemented code from NI site in the following link,
 
http://zone.ni.com/devzone/cda/epd/p/id/5339
 
While I am running I am getting Received message Zero all the time irrespective of the Input command.If any of you worked with code please give input on this.
 
Thanks,
Nataraj.