Answers Database
**M1.3/M1.4 CPLD: Exemplar netlists use IOBUFE which is not expanded by 9k library.
Record #2660
Product Family: Software
Product Line: EPLD Core
Product Part: epld-lib
Problem Title:
**M1.3/M1.4 CPLD: Exemplar netlists use IOBUFE which is not expanded by 9k library.
Problem Description:
Urgency: standard
General Description:
In XACT6, IOBUFE was included in the 9k XNF macro library that was used for all
design flows. In M1, IOBUFE exists only in the XSI expansion library. Exemplar
designs containing bidi-I/Os fail with the ngdbuild warning "Logical block...
of type IOBUFE not expanded" followed by Hitop warning xr5055.
Solution 1:
Change the extension of the output file in the Exemplar menu to
".sedif" (or ".sxnf") to allow ngdbuild to use the XSI library
which expands the IOBUFEs.
End of Record #2660 - Last Modified: 12/28/99 12:14 |
