Why does the Remote System Upgrade (RSU) function fail to revert back to the factory image in Arria V, Cyclone V and Stratix V devices?

Description

The RSU may fail to revert back to the factory image in Arria® V, Cyclone® V and Stratix® V devices due to the same reason that is documented in the following errata sheets:

• Stratix IV E Errata Sheet (PDF)
• Stratix IV GX Errata Sheet (PDF)
• Stratix IV GT Errata Sheet (PDF)

One of the following invalid application configuration images may cause incorrect operation:  

• A partially programmed application image
• A blank application image
• An application image assigned with a wrong start address

Resolution

To avoid this incorrect operation, use one of the following options: 

• Ensure the application image is correctly stored at the right address 
• Use the enable POF checking option show in Remote System Upgrade IP Core User Guide (ALTREMOTE_UPDATE) (PDF)  
  This feature allows the remote update block to verify the existence of an application configuration image before the image loaded.

Related Articles

• Why does the POF_ERROR signal trigger high during the application image reconfiguration when using Remote System Upgrade (RSU)?