Why does the GTS SDI II IP observe a Single Rate (SR) Dual Simplex (DS) port failure when migrating from an older version of the SR DS Design Example to Quartus® Prime Pro Edition Software version 25.1?

Due to a problem in the Quartus Prime Pro Edition software version 25.1, you may observe the Dual Simplex(DS) port failure in GTS SDI II IP when migrating an SR DS design generated by a former version to the Quartus Prime Pro Edition software version 25.1. This is because the Dual Simplex port name changes. 

To work around this problem, modify the GTS SDI top level file (sdi_ii_agi_demo.sv) in example_design/rtl/ path.  

Example:  

• SDI II Wrapper = Both Base and PHY 
• sdi_rx_inst0_auto_rx_cdr_refclk -> rx_cdr_refclk_sdi_rx_inst0 
   
• SDI II Wrapper = Base only 
• dphy_rx_inst0_auto_i_rx_cdr_refclk_p -> i_rx_cdr_refclk_p_dphy_rx_inst0 

This list of port name changes can be found in this link.