Internal Error: Sub-system: EMIF, File: /quartus/periph/emif/emif_gen5_postproc.cpp, Line: 266

Description

Due to a problem in the Quartus® II software version 12.1 SP1, you might see the above internal error during compilation for designs containing external memory interface IP that target Cyclone® V devices.

Resolution

A patch is available to fix this problem for the Quartus II software version 12.1 SP1. First, download and install patch 1.dp6 from the related solution. After installing patch 1.dp6, download and install patch 1.dp6k from the following links:

• Quartus II software version 12.1 SP1 patch 1.dp6k for Windows (.exe)
• Quartus II software version 12.1 SP1 patch 1.dp6k for Linux (.tar)
• Readme for the Quartus II software version 12.1 SP1 patch 1.dp6k (.txt)

This problem is scheduled to be fixed in a future release of the Quartus II software.

Related Articles

• How do I address known software issues for Stratix V, Arria V and Cyclone V devices in the Quartus II software version 12.1 SP1?