Why is the Worst-Case MTBF not calculated for the nodes {*|soft_logics|rst_ctrl|pld_clk_ninit_done_sync_inst|din_s1}?

Description

Due to a problem with the Quartus® Prime Pro Edition software version 25.1 and earlier, the "Worst-Case MTBF" is not calculated for the nodes {*|soft_logics|rst_ctrl|pld_clk_ninit_done_sync_inst|din_s1} and results in "n/a (no valid slack)" by Timing Analyzer. This problem affects all designs containing the P-Tile PCIe FPGA IP.

Resolution

A patch is available to fix this problem in the Quartus® Prime Pro Edition software version 25.1.  Download and install patch 0.06 from the following links:

• Download patch 0.06 for Windows (quartus-25.1-0.06-windows.exe)
• Download patch 0.06 for Linux (quartus-25.1-0.06-linux.run)
• Download the Readme for patch 0.06 (quartus-25.1-0.06-readme.txt)

A patch is available to fix this problem in the Quartus® Prime Pro Edition software version 24.3.1.  Download and install patch 1.21 from the following links:

• Download patch 1.21 for Windows (quartus-24.3.1-1.21-windows.exe)
• Download patch 1.21 for Linux (quartus-24.3.1-1.21-linux.run)
• Download the Readme for patch 1.21 (quartus-24.3.1-1.21-readme.txt)

This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Edition software.