Answers Database XC5200: UserClk must be enabled in Makebits before CK_DIV will be used. Record #1293 Product Family: Software Product Line: XACT FPGA Product Part: makebits Product Version: 5.2 Problem Title: XC5200: UserClk must be enabled in Makebits before CK_DIV will be used. Problem Description: The CK_DIV symbol is used when you want to bring in an external clock signal from off-chip. However, placing the symbol on schematic alone will not tell the Xilinx tools that your design is being clocked externally. Solution 1: You also need to enable the user clock in MakeBits by typing: prompt> makebits -f OscClk:UserClk <design_name>.lca End of Record #1293 - Last Modified: 02/20/97 13:59

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