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Altera_Forum
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11 years ago

Internal Error: Sub-system: VPR20KMAIN, File: /quartus/fitter/vpr20k/vpr_common/utils

Any ideas why it may happen? I just added a PLL to my project based on golden design for Cyclone V SoC devkit. Now, I cannot move forward in compiling the design even when removing PLL instance fr...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Hi,

Even though the error message may not make sense from a device utilization perspective, it does (hopefully) point you in the right direction. Do you use this reset signal to reset the PLL you added to the design? Would it be possible for you to try another reset strategy in that case?

I see in the initial post that you seem to get the IE even when the PLL is removed. Try to delete all Quartus generated folders in your project directory (db, incremental_db etc) and start the compilation again.

Cheers