When I program a CoolRunner XPLA3 device, an error message similar to the following appears in the log:
"'1': Programming device...
'1': Part is Secure.
'1': Part is secure,Verification terminated due to errors
PROGRESS_END - End Operation."
Or, when I attempt a "Verify" operation, iMPACT reports that the device is secure (read-only).
However, I never selected readback security when programming the device.
This problem is fixed in the latest 5.1i Service Pack, available at:
The first service pack containing the fix is 5.1i Service Pack 2.