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Altera_Forum's avatar
Altera_Forum
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13 years ago

access environmental variables in _hw.tcl files

Hello all, When I try to print an environmental variables in the Quartus TCL Console (e.g. puts $::env(PATH) ) it works, but whenever I try to access it within a _hw.tcl component script it doe...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

After some further testing I concluded that this was already fixed from Quartus/Qsys 12.1 onwards.

The solution is that you need to use the correct package command that forces the component to be interpreted by the latest version of Qsys (and not SOPC Builder, for which reading environment variables doesn't work).

For example, change the package command in your TCL file from e.g.: 

package require -exact sopc 11.0

to either: 

package require -exact qsys 12.1

or 

package require -exact qsys 13.0

depending on the Quartus version you are using.