Answers Database
Virtex-E NGDbuild error on LVPECL and LVCMOS18 IOSTANDRD: ERROR:NgdHelpers:33 - Invalid UCF/NCF file entry value "LVCMOS1" ...
Record #7860
Product Family: Software
Product Line: FPGA Implementation
Product Part: ngdbuild
Product Version: 2.1i
Problem Title:
Virtex-E NGDbuild error on LVPECL and LVCMOS18 IOSTANDRD: ERROR:NgdHelpers:33 - Invalid
UCF/NCF file entry value "LVCMOS1" ...
Problem Description:
Urgency: Hot
Problem Description:
If LVPECL, and LVCMOS18 IO standards are entered in the UCF file, NGDbuild will
generate the following error:
ERROR:NgdHelpers:33 - Invalid UCF/NCF file entry value "LVCMOS1"
detected on line 1, offset 27.
Solution 1:
This problem will be fixed in the future release of the software.
The workaround is to explicitly instantiate the specific buffers in
the design.
The buffer names are:
IBUFG_LVPECL
IBUF_LVPECL
OBUF_LVPECL
OBUFT_LVPECL
IOBUF_LVPECL
IBUFG_LVCMOS18
IBUF_LVCMOS18
OBUF_LVCMOS18
OBUFT_LVCMOS18
IOBUF_LVCMOS18
End of Record #7860 - Last Modified: 02/07/00 13:40 |
