1.7. Usermode High Icc
When the affected device transitions into User mode, high Icc is observed, due to internal dataline contention.
Use the following software workaround to prevent the Usermode high Icc issue:
- For the Error Detection Cyclic Redundancy Check (EDCRC) user, no workaround is needed because the EDCRC feature eliminates the high Icc issue.
- For the non-EDCRC user, a software workaround is needed and is available in the Quartus II software version 12.1 sp1, or later.
Action Needed for Existing Designs (pre-Quartus II version 12.1 sp1)
Specific action is needed when the existing design uses the EDCRC and certain versions of the Quartus II software. The table below lists the actions needed for different settings.
|Quartus II Version
|Full recompilation is required using the Quartus II software version 12.1 sp1, or later release.
|Full recompilation is NOT needed, but requires the use of Quartus II software version 12.1 sp1, or later for programming file conversion.1
Affects: Cyclone® V GX, GT, and E devices
Status: No planned fix