Answers Database
MAP WARNING:x4kma:78 - STARTUP symbol "$I1" (output signal=<none>) conflicts with other symbol connections on the clock signal
Record #3798
Product Family: Software
Product Line: FPGA Implementation
Product Part: map
Product Version: 1.4
Problem Title:
MAP WARNING:x4kma:78 - STARTUP symbol "$I1" (output signal=<none>) conflicts with other
symbol connections on the clock signal
Problem Description:
Urgency: Standard
General Description: In the schematic, clock output of BUFG goes to the CLK pin of STARTUP as well a
s other FFs. One would get warning message in MAP: WARNING:x4kma:78 - STARTUP symbol "$I1" (output s
ignal=<none>) conflicts with other symbol connections on the clock signal. The symbol cannot be con
nected to the clock signal based on the location constraint placed on its clock buffer.
Solution 1:
This is an incorrect message and can be safely ignored. The startup pin clock does get connected. Th
e warning message has to do with the fact that the startup clock pin can only be reached by using a
route-thru.
End of Record #3798 - Last Modified: 05/21/98 09:12 |
