Device Family: Intel® Stratix® 10

Type: Answers

Area: HSIO

Bug ID: FB: 454517;

Why is there a 1-bit error in the Stratix 10 H-Tile Eye Viewer when DFE is enabled?


Due to a problem with the error counter inside the Stratix® 10 H-Tile Eye Viewer, it may report incorrect 1-bit error when the DFE is enabled. 


If you are using transceiver toolkit in Quartus® software version 17.1, it will perform automatic correction for the incorrect error count.

If you are reading the error count value through Avalon-MM interface with DFE enabled, you should manually subtract the reported error count value by 1 when the reported error count is greater than 0.