Why does my Stratix® 10 FPGA device hang when triggering FPGA reconfiguration via nCONFIG pin and Frequency Tamper Detection feature is enabled?

Description

In Quartus® Prime Pro Edition Software version 25.1 and earlier, an issue occurs when the physical anti‑tamper feature is enabled using the Frequency Tamper Detection method in combination with an Active Serial configuration scheme. If you initiate a device reconfiguration by pulsing the nCONFIG pin, the Stratix® 10 FPGA may hang and fail to proceed with the reconfiguration process. 

Resolution

You can recover the device by performing a power cycle.

This issue is planned to be resolved in a future release of the Quartus® Prime Pro Edition Software.