I am not familiar with BCH, however you can call C DLLs in LabVIEW as well as Matlab.
So you could compile thier C code into a DLL and call it using the Call Library Function Node. For more information on that refer to <a href="http://digital.ni.com/manuals.nsf/webAdvsearch/8D930295FFBF9F7686256D2C00624728?OpenDocument&vid=niwc&node=132100_US";>Using External Code in LabVIEW</a> Or you can call the Matlab code using the Matlab Script structure. For more information refer to the LabVIEW User Manual.
