Answers Database
M1.4 Map - Optimization of OFDT symbol results in dangling tri-state control pin
Record #3311
Product Family: Software
Product Line: FPGA Implementation
Product Part: map
Product Version: 1.4.
Problem Title:
M1.4 Map - Optimization of OFDT symbol results in dangling tri-state control pin
Problem Description:
In a case where OFDT has both data and tri-state control
pins grounded, map optimizes the OFDT down to a buffer
driven by GND. The tri-state control pin is incorrectly
left configured with no driver. This results in the following
drc error:
WARNING:x4kdr:82 - Blockcheck: The pin "T" on comp (mapped
physical logic cell)"SRAM1_ADD<16>" is configured to be used
but has no signal attached to it.
Solution 1:
This issue is fixed by the latest M1.4 Core Tools patch
which is available in the XILINX Download Area:
Solaris: ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_sol17_m14.tar.Z
SunOS ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_sun17_m14.tar.Z
HPUX: ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_hp17_m14.tar.Z
Win95/NT: ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/core_nt17.zip
End of Record #3311 - Last Modified: 08/18/98 17:58 | 
