When using ChipScope Analyzer to program the FPGA, I receive an error indicating that the JTAG chain is lost, or that the Done signal did not go High.
To work around this problem, try using iMPACT 6.2i to program the FPGA:
1. Run iMPACT to program the FPGA.
2. Exit iMPACT.
3. Run ChipScope Analyzer.