Answers Database
Mentor: NGDBuild gives: ERROR:NgdHelpers:312 - logical block "I$1563/I$1/I$32" of type "vcc!1" is unexpanded (or "gnd!1")
Record #8107
Product Family: Software
Product Line: Mentor
Product Part: enwrite
Problem Title:
Mentor: NGDBuild gives: ERROR:NgdHelpers:312 - logical block "I$1563/I$1/I$32" of type
"vcc!1" is unexpanded (or "gnd!1")
Problem Description:
Urgency: standard
General Description:
I have a design that was created in pld_da originally using the A1.5i
libraries. I am now using the 2.1i software and NGDBuild is giving
messages similiar to the following:
ERROR:NgdHelpers:312 - logical block "I$259/I$3" of type "vcc!1" is
unexpanded.
ERROR:NgdHelpers:312 - logical block "I$261/I$1" of type "gnd!1" is
unexpanded.
I am manually running ENWrite and NGDBuild.
Solution 1:
In the A1.5i library the vcc and gnd symbol pin names were
vcc and gnd, but now in 2.1i the pin names have changed
to P and G. What may have happened is that the resulting
EDIF file from ENWrite was created using a viewpoint
from 1.5i, so the wrong pin names were written into the
EDIF netlist.
The schematic sheets that have any vcc or gnd components
must be updated by doing the following from within pld_da:
1) Right-mouse-click in the pld_da session window. (The window
behind the schematic if the schematic is opened) You may have to
resize the schematic window, or minimzie it.
2) Choose the Update Design option.
3) Either enter in the top level name in the "Enter Top level design name"
dialogue box, or use the Navigator button to select it.
4) Click on the "OK" button to proceed with updating the design.
5) Check and save the updated design..
6) Run pld_men2edif. This will create a new viewpoint and create
the new EDIF file.
7) NGDBuild should now finish without errors.
End of Record #8107 - Last Modified: 11/18/99 16:08 |
