Hi all, I tried to program a Lattice CPLD LC5512MB via the Xilinx parallel cable by using Xilinx iMPACT in batch mode with an ISC-file. The programming perfectly worked with an empty CPLD but if the CPLD already was programmed , strange things was happened - all Bits was programmed with zeros. It looks like as the ERASE OpCode in the LATTICE 1532-BSDL-file would not work. Does somebody know a solution?
Thanks and regards Burkhard