ECP5: Why cant i disable bitstream encryption after i have enabled in Lattice Diamond?
Description:
A known issue in certain Lattice Diamond flows may prevent
bitstream encryption settings from being fully cleared after they have been
enabled for an ECP5 project. As a result, the generated bitstream may continue
to be signed even though encryption appears to have been disabled in the
project settings.
Solution:
As a workaround, manually remove the .bek and .sec files
from the project directory and then regenerate the bitstream.
Removing these files clears the previously stored security
and encryption information, allowing Diamond to generate a new bitstream
without signing. After deleting the .bek and .sec files and regenerating the
design, the resulting bitstream is generated without bitstream
signing/encryption enabled.
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