After running GTP Wizard (ver 1.5), the generated wrapper is synthesized with synplify 8.6.2.
When trying to implement the design, NGD build fails with the following error messages.
ERROR:LIT:239 - Attribute COM_BURST_VAL_0 on GTP_DUAL instance "XXX" has an invalid binary value, "F"
This is a known issue in Synplify. It has been fixed in Synplicity 8.9
To resolve this issue, upgrade to Synplicity 8.9.