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Altera_Forum
Honored Contributor
11 years agoHere's my "simple" solution, along with how I figured it out.
1. Start Quartus 14.0, and then exit. 2. Start a Cygwin shell (not the NIOS II IDE Shell version) and type echo $QUARTUS_ROOTDIR and that points to the 14.0 install 3. Start Quartus 13.1, and then exit. 4. Start a Cygwin shell and type echo $QUARTUS_ROOTDIR and that points to the 13.1 install So, QUARTUS_ROOTDIR is dynamically set by Quartus, and gets left at the last version that ran. Cheers, Dave