NXT Custom Block Development with LabVIEW 8.2.1?

[Brian Ferris]

I'm trying to develop a custom NXT block using LabVIEW 8.2.1.  Is this possible?  I am having trouble importing the finished block into the Mindstorm environment.  My block is always greyed out in the import list.  My block seems to compile just fine.  In fact, if I create a new example block from a template and try to import that without modifications, I get the same behavoir.

Any ideas on how I can debug this?

P.S. Hopefully this actually goes to the LabVIEW Friends of LEGO group ; )

[Eagle 1]

I think you are out of luck.  You can use the NXT direct commands, but I think you need 7.1 to create NXT-G blocks.  You can always request the student edition free from NI.

[JamesB.]

Eagles Coach is right on the money here.  Because the MINDSTORMS environment is built on LabVIEW 7.1, that's the only version you can use to create custom blocks for the environment.  LabVIEW 8.0 and 8.2 are useful if you plan to do all your programming in LabVIEW itself, but won't help you create blocks for MINDSTORMS.

You could use the "Save for Previous" feature of LabVIEW to backport your code to 7.1, but that would require you to have both LV 8.0 and LV 7.1.