SW Version Control

The process of upgrading to a new SW version is controlled by the NPU, and is performed using one of the AU SW files existing in the NPU. If the specified AU SW file does not exist in the AU, it will be downloaded to the AU and the requested operation will be executed, as described below. If it already exists in the AU, then actual loading is not necessary.

The following components are available in the SW Version Control section:

Component	Description
Perform Button	Click on the Perform button to activate an upgrade process defined by the Action and SW Version drop-down menus.
Action Drop-Down Menu	Provide a selection between the following actions: • None • Load to Shadow: To download a specified SW file to the Shadow memory of the AU. If the file already exists in the AU, no action will take place. • Run from Shadow: To download a specified SW file from the NPU to the Shadow memory of the AU, reset the AU and reboot using the Shadow version. Note that because the process is controlled by the NPU, the AU will continue running from the Shadow version after reset. If the specified file already exists as the Shadow version (meaning that previously a Load to Shadow operation was executed for this file name), the only actual operation to take place will be to reset and run from Shadow. If the specified file already exists as the Main version, no action will take place. • Set as Main: To download a specified SW file from the NPU to the Shadow memory of the AU, reset the AU and reboot using the Shadow version, and then swap the Main and Shadow SW Version, so that the running version (which was previously the Shadow version) will become the Main version, to be used after next reset. If the specified file already exists as the running version and it is defined as the Shadow version (meaning that previously Load to Shadow and Run from Shadow operations were executed for this file name), the only actual operation to take place will be to swap the Main and Shadow versions. If it is already defined as the Main version, no action will take place.
SW Version Drop-Down Menu	The selection includes the SW versions of all AU files in the NPU.