modulator.syr

运用FPGA控制AD9957的操作

WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <len_reg_4> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <len_reg_3> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <len_reg_2> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <len_reg_1> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <len_reg_0> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_63> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_62> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_61> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_60> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_59> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_58> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_57> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_56> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_55> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_54> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_53> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_51> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <ser_addr_0> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <ser_addr_4> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <ser_addr_5> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <ser_addr_6> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <ser_addr_7> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_0> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_1> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_2> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_3> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_4> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_5> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_6> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_7> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_9> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_10> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_11> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_34> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_33> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_32> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_31> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_29> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_28> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_27> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_26> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_25> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_23> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_22> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_18> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_17> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_16> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_14> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_13> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <data_in_12> (without init value) has a constant value of 0 in block <ad9957_single>.
WARNING:Xst:1291 - FF/Latch <ser_in> is unconnected in block <ad9957_single_inst>.
WARNING:Xst:1291 - FF/Latch <dout_61> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_63> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_62> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_60> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_59> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_56> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_58> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_57> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_55> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_54> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_51> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_53> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_52> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_50> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_49> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_46> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_48> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_47> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_45> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_44> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_41> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_43> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_42> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_40> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_39> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_36> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_38> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_37> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_35> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_34> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_33> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_32> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_31> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_30> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_27> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_29> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_28> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_26> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_25> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_22> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_24> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_23> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_21> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_20> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_17> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_19> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_18> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_16> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_15> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_14> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_13> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_12> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_11> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_8> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_10> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_9> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_7> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_6> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_3> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_5> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_4> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_2> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_1> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <dout_0> is unconnected in block <serl>.
WARNING:Xst:1291 - FF/Latch <0> is unconnected in block <state_cur>.

Synthesizing (advanced) Unit <ad9957_single>.
INFO:Xst:2387 - HDL ADVISOR - A 3-bit shift register was found for signal <start_sync<2>> and currently occupies 3 logic cells (1 slices). Removing the set/reset logic would take advantage of SRL16 (and derived) primitives and reduce this to 1 logic cells (1 slices). Evaluate if the set/reset can be removed for this simple shift register. The majority of simple pipeline structures do not need to be set/reset operationally.
INFO:Xst:2387 - HDL ADVISOR - A 3-bit shift register was found for signal <ser_start_sync<2>> and currently occupies 3 logic cells (1 slices). Removing the set/reset logic would take advantage of SRL16 (and derived) primitives and reduce this to 1 logic cells (1 slices). Evaluate if the set/reset can be removed for this simple shift register. The majority of simple pipeline structures do not need to be set/reset operationally.
Unit <ad9957_single> synthesized (advanced).

=========================================================================
Advanced HDL Synthesis Report

Macro Statistics
# FSMs                                                 : 2
# Adders/Subtractors                                   : 3
 2-bit adder                                           : 1
 4-bit adder                                           : 1
 8-bit subtractor                                      : 1
# Registers                                            : 189
 Flip-Flops                                            : 189
# Multiplexers                                         : 1
 1-bit 64-to-1 multiplexer                             : 1

=========================================================================

=========================================================================
*                         Low Level Synthesis                           *
=========================================================================
INFO:Xst:2261 - The FF/Latch <state_cur_3> in Unit <modulator> is equivalent to the following FF/Latch, which will be removed : <state_cur_5> 
WARNING:Xst:1710 - FF/Latch  <shift_data_37> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_38> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_39> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_40> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_41> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_42> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_43> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_44> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_45> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_46> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_47> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_48> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_49> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_50> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_51> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_53> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_54> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_55> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_56> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_57> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_58> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_59> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_60> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_61> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_62> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_63> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_0> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_4> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_5> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_6> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_7> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_9> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_10> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_11> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_12> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_13> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_14> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_16> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_17> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_18> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_22> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_23> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_25> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_26> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_27> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_28> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_29> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_31> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_32> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_33> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_34> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_35> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <shift_data_36> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1710 - FF/Latch  <state_cur_2> (without init value) has a constant value of 0 in block <modulator>.
WARNING:Xst:1710 - FF/Latch  <state_cur_3> (without init value) has a constant value of 0 in block <modulator>.
WARNING:Xst:1710 - FF/Latch  <state_cur_4> (without init value) has a constant value of 0 in block <modulator>.
WARNING:Xst:1291 - FF/Latch <state_cur_0> is unconnected in block <modulator>.
Loading device for application Rf_Device from file '3s200.nph' in environment D:\Xilinx.
WARNING:Xst:1710 - FF/Latch  <sd_io> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <state_cur_FFd1> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1710 - FF/Latch  <dout_31> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_30> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_27> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_29> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_28> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_26> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_25> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_22> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_24> (without init value) has a constant value of 0 in block <serial>.
WARNING:Xst:1895 - Due to other FF/Latch trimming, FF/Latch  <dout_23> (without init value) has a constant value of 0 in block <serial>.