ICC: how to connect tie cell to spare antenna port?

wilson168

Dear guys,
I used following tcl commands to insert spare anntenna cells and try to connect them to tie cell's ports in ICC, but it is failed.

TCL cmd1:
insert_spare_cells -num_cells  "ANTENNA 30"   -cell_name ICC_SPARE_ANTENNA -tie  -hier_cell U_ICC_SPARE -skip_legal

TCL_cmd2:
connect_tie_cells -tie_high_lib_cell $ICC_TIE_HIGH_CELL -tie_low_lib_cell $ICC_TIE_LOW_CELL \
-tie_high_port_name $ICC_TIE_HIGH_PORT \
-tie_low_port_name  $ICC_TIE_LOW_PORT \
-max_fanout $ICC_TIE_MAX_FANOUT \
-max_wirelength $ICC_TIE_MAX_WIRELENGTH \
-objects [get_cells  "U_ICC_SPARE/ICC_SPARE_*" ] \
-obj_type cell_inst  \
-incremental true



The final output verilog looks like this "ANTENNA ICC_SPARE_ANTENNA_0 (.A ( 1'b0 )) ;".
The expected result should be in this format "ANTENNA ICC_SPARE_ANTENNA_0 (.A ( TIELO_U7_NET));"

Can someone  tech me to fix this problem? thank you in advance.