Description
Due to a bug in Quartus® II software versions 12.1 and 12.1sp1, the XCVR_RX_LINEAR_EQUALIZER_CONTROL QSF assignment may not have an effect on the Stratix® V GX equalizer.
Resolution
To work around this issue you should write the equalization value through the Avalon® Memory Mapped interface.
Alternatively you can install the following appropriate patch.
Quartus II software version 12.1
Quartus II software version 12.1 SP1 dp6- Quartus II software version 12.1 SP1 dp6 patch f for Windows (.exe)
- Quartus II software version 12.1 SP1 dp6 patch f for Linux (.tar)
- Quartus II software version 12.1 SP1 dp6 patch f Read Me file (.txt)
This issue will be fixed in a future version of the Quartus II software.