Answers Database M1.4 Map - FATAL_ERROR:x4kma:x4kmagrclapse.c:1001:1.90.12.8 - No route-thru available in pack_lutflop() to swap with H input pin 8: Record #4112 Product Family: Software Product Line: FPGA Implementation Product Part: map Product Version: 1.4. Problem Title: M1.4 Map - FATAL_ERROR:x4kma:x4kmagrclapse.c:1001:1.90.12.8 - No route-thru available in pack_lutflop() to swap with H input pin 8: Problem Description: Urgency : standard General description: When -k option ( Generate 5-input functions) is used in map with core patch #14, map is terminated with the following error: FATAL_ERROR:x4kma:x4kmagrclapse.c:1001:1.90.12.8 - No route-thru available in pack_lutflop() to swap with H input pin 8: cpu_reg_blk/U1942/O/cpu_reg_blk/n1021<16>. Process will terminate. Please call Xilinx support. Solution 1: The workaround is to not use the -k option. In GUI, check to see that the option,"Generate 5-input Functions" is not checked. End of Record #4112 - Last Modified: 05/18/99 14:54

For the latest news, design tips, and patch information on the Xilinx design environment, check out the Technical Tips!