Answers Database
A1.5/F1.5 XC3000 Map - FATAL_ERROR:x3kma:x3kmabel.c:752:1.15 - Didn't find out signal on bel 10 of comp A0_1
Record #4299
Product Family: Software
Product Line: FPGA Implementation
Product Part: map
Product Version: 1.4.
Problem Title:
A1.5/F1.5 XC3000 Map - FATAL_ERROR:x3kma:x3kmabel.c:752:1.15 - Didn't find out signal on bel
10 of comp A0_1
Problem Description:
Keyword: map, 3000a, xnf
Urgency : Standard
General Description:
Map give the following error:
FATAL_ERROR:x3kma:x3kmabel.c:752:1.15 - Didn't find out
signal on bel 10 of comp A0_1. Process will terminate.
Please call Xilinx support.
The signal A0_1 is a bidirectional signal connecting
OBUFZ U136 and IBUF U135.
Solution 1:
This fatal error occurrs when there is a bidirectional IOB
that is getting trimmed because of a loadless IBUF.
In this case, IBUF U135 is driving net AI0_1, which ends up
loadless due to extensive trimming. M1 then attempt to trim
the A0_1 IOB, which leads to the fatal error.
WORKAROUND: Create a .ucf file with a 'SAVE' (NOCLIP)
property for the net in question:
NET netname S; --->for xnf netlist
NOTE: You should double check to determine what has caused the
extensive logic trimming that leads to a trimming of IO pins.
End of Record #4299 - Last Modified: 09/26/98 16:13 |
