Answers Database
XEPLD/XABEL: xr2: [Error] Ignoring symbol with same name as previous symbol.
Record #1571
Product Family: Software
Product Line: Data I/O
Product Part: xabel
Product Version: 5.2
Problem Title:
XEPLD/XABEL: xr2: [Error] Ignoring symbol with same name as previous symbol.
Problem Description:
When compiling an EPLD design with ABEL macros through the
EPLD core tools, the following error may occur during the
Optimizer/Partitioner phase of Implementation:
xr2: [Error] Ignoring symbol with same name as previous symbol.
Please use unique symbol names.
This error indicates that there are 2 symbols in the XNF file
which have the same instance name. This can happen with tri-state
nodes, if the NODETRST Plusasm property is not used. A TBUF and
an OR gate will be put into the XNF file with the same instance
name, which is illegal XNF syntax.
If a node or pin is desired to be tri-state, the
NODETRST Plusasm property must be attached to it in order
for the node to be properly synthesized.
Solution 1:
Use the following syntax for 3-state nodes.
In the declarations section:
OUT1 pin; "OUT1 is the 3-stated output pin (or node).
XEPLD Property 'node (nodetrst) OUT1';
*Note: even if the signal is declared as a pin in the ABEL
file this is necessary, since the ABEL file is a macro, and
not a top-level design.
End of Record #1571 - Last Modified: 12/05/96 15:33 |
