System Debugging

Hey !!!

Somebody know how to use altsource_probe megafunction in conjunction with (http://dict.leo.org/ende?lp=ende&p=ci4ho3kmaa&search=conjunction&trestr=0x8001)SignalTap II Logic Analyzer. I can set up megafunction and read data in In-System Sources and Probes Editor. But how can i choose this node to watch in Logic Analyzer...

thanks for help...