hi all;
I am using HWICAP to configure certain LUTs , and as mentioned in the HWICAP data sheet that "when LUTs are configured in Shift Register Mode or as a RAM. If a LUT is modified or just read back in a column that also has a LUT RAM or LUT shift register, then the LUT or shift register will be interrupted and it will lose its state. To resolve the problem, the LUT shift registers and LUT RAMs should be placed in columns that are not read back or modified. " ,what i know form the beginning is the instance name of the LUTs , is it possible to add constrains to avoid placing these LUTs in columns that contain RAMs or Shift registers, or may be there is another solution.
thanks