P&E Microcomputer Systems Cyclone LC Series, Руководство пользователя

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User Manual For Cyclone LC Programmers 120
refuse to load the image unless the appropriate ImageKey resides on the Cyclone. If the ImageKey
is present, the Cyclone will load the eSAP File and automatically decrypt it using both the matching
ImageKey and the Cyclone's internal decryption mechanism.
A user may create and use multiple ImageKeys and corresponding eSAP images on a single
Cyclone.
The decryption process is transparent to the user when the Cyclone goes to program the target.
The decrypted programming image appears as usual on the Cyclone menu screen. The user can
now program devices using the unencrypted SAP Image.
Figure 11-10: Decryption Occurs Automatically For Programming
11.4.4 Encryption Status of SAP Images
In the Images tab of the Cyclone Control Suite GUI the user can view the encryption status of SAP
images that reside on the connected Cyclone.
Figure 11-11 shows the Cyclone Control GUI with
the Images tab selected.
Figure 11-11: SAP Image Listing for Connected Cyclone
The rightmost column, labeled Encryption, displays whether each SAP image is unencrypted
(“None”), encrypted with the required ImageKey present (“Encrypted”), or encrypted but missing
the ImageKey required to decrypt (“Encrypted No Key”).