Internal Error: Sub-system: ASMIO, File: /quartus/comp/asmio/asmio_pin_model.cpp, Line: 1689

This error may be generated by the Quartus® II software versions 9.1 SP1 and 9.1 SP2. The Quartus II software incorrectly connects the phase select signal on clock dividers which have been inserted to connect the clock divider chain.

A patch is available to fix this problem for the Quartus II software versions 9.1 SP1 and 9.1 SP2. Download and install Patch 1.70 for the Quartus II software version 9.1 SP1 from the appropriate link below.

• For Windows:
  • Download the Quartus II software version 9.1 SP1 Patch 1.70 for Windows (.exe)
  • Download the Readme for the Quartus II software version 9.1 SP1 Patch 1.70 for Windows (.txt)
• For Linux:
  • Download the Quartus II software version 9.1 SP1 Patch 1.70 for Linux (.tar)
  • Download the Readme for the Quartus II software version 9.1 SP1 Patch 1.70 for Linux (.txt)

Download and install Patch 2.49 for the Quartus II software version 9.1 SP2 from the appropriate link below.

• For Windows:
  • Download the Quartus II software version 9.1 SP2 Patch 2.49 for Windows (.exe)
  • Download the Readme for the Quartus II software version 9.1 SP2 Patch 2.49 for Windows (.txt)
• For Linux:
  • Download the Quartus II software version 9.1 SP2 Patch 2.49 for Linux (.tar)
  • Download the Readme for the Quartus II software version 9.1 SP2 Patch 2.49 for Linux (.txt)

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