CPLD问题：综合时通不过？？！路过的大侠指点一下小弟

我用的是XILINX的CPLD，我用的是XILINX的XST综合的，
以下是提示：
Release 5.2i - xst F.28
Copyright (c) 1995-2002 Xilinx, Inc.  All rights reserved.
--> Parameter TMPDIR set to __projnav
CPU : 0.00 / 0.45 s | Elapsed : 0.00 / 1.00 s
 
--> Reading design: usbsaa7113_top.prj

TABLE OF CONTENTS
  1) Synthesis Options Summary
  2) HDL Compilation
  3) HDL Analysis
  4) HDL Synthesis
     4.1) HDL Synthesis Report
  5) Low Level Synthesis
  6) Final Report

=========================================================================
*                      Synthesis Options Summary                        *
=========================================================================
---- Source Parameters
Input File Name                    : usbsaa7113_top.prj
Input Format                       : VERILOG
Ignore Synthesis Constraint File   : NO
Verilog Search Path                :
Verilog Include Directory          :

---- Target Parameters
Output File Name                   : usbsaa7113_top
Output Format                      : NGC
Target Device                      : xpla3

---- Source Options
Top Module Name                    : usbsaa7113_top
Automatic FSM Extraction           : YES
FSM Encoding Algorithm             : Auto
CASE Implementation Style          : Full-Parallel
Mux Extraction                     : YES
Resource Sharing                   : YES
Complex Clock Enable Extraction    : YES

---- Target Options
Add IO Buffers                     : YES
Equivalent register Removal        : YES
MACRO Preserve                     : YES
XOR Preserve                       : YES

---- General Options
Optimization Criterion             : Area
Optimization Effort                : 1
Keep Hierarchy                     : YES
RTL Output                         : Yes
Hierarchy Separator                : _
Bus Delimiter                      : <>
Case Specifier                     : maintain

---- Other Options
cross_clock_analysis               : NO
verilog2001                        : YES
Clock Enable                       : YES
wysiwyg                            : NO

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


=========================================================================
*                          HDL Compilation                              *
=========================================================================
Compiling source file "usbsaa7113_top.prj"
Compiling include file "main.v"
Module <usbsaa7113_top> compiled
Compiling include file "D:/Xilinx52/verilog/src/iSE/unisim_comp.v"
No errors in compilation

=========================================================================
*                            HDL Analysis                               *
=========================================================================
Analysis of file <usbsaa7113_top.prj> succeeded.
 
 
Analyzing top module <usbsaa7113_top>.
main.v line 152: Found FullParallel Case directive in module <usbsaa7113_top>.
WARNING:Xst:905 - main.v line 151: The signals <state1, EVEN_SRAMFREE, ODD_SRAMFREE> are missing in the sensitivity list of always block.
Module <usbsaa7113_top> is correct for synthesis.

=========================================================================
*                           HDL Synthesis                               *
=========================================================================
INFO:Xst:1304 - Contents of register <PIX_COUNTER> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <PIX_COUNTER> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <odd_ce_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <odd_ce_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <odd_ce_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <ODD_RAMA_OUT> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <odd_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <odd_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <odd_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <odd_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <even_ce_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <even_ce_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <EVEN_RAMA_OUT> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <even_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <even_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <even_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <even_we_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <EVEN_FIELD_STORE_EN> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <EVEN_FIELD_STORE_EN> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <ODD_FIELD_STORE_EN> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <ODD_FIELD_STORE_EN> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <LINE_COUNTER> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <PIX_STORE_EN> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <EVEN_SRAMFREE> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <EVEN_SRAMFREE> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <EVEN_SRAMFREE> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <ODD_SRAMFREE> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <ODD_SRAMFREE> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <ODD_SRAMFREE> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <state1> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <slwr_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.
INFO:Xst:1304 - Contents of register <slwr_out> in unit <usbsaa7113_top> never changes during circuit operation. The register is replaced by logic.

Synthesizing Unit <usbsaa7113_top>.
    Related source file is main.v.
WARNING:Xst:646 - Signal <even_ce_out> is assigned but never used.
WARNING:Xst:646 - Signal <even_ce_out> is assigned but never used.
WARNING:Xst:646 - Signal <even_ce_out> is assigned but never used.
WARNING:Xst:646 - Signal <even_oe_out> is assigned but never used.
WARNING:Xst:646 - Signal <pa0> is assigned but never used.
WARNING:Xst:737 - Found 2-bit latch for signal <FIFOADDR>.
WARNING:Xst:737 - Found 1-bit latch for signal <EVEN_FIELD_STORE_EN>.
WARNING:Xst:737 - Found 1-bit latch for signal <ODD_FIELD_STORE_EN>.
WARNING:Xst:737 - Found 1-bit latch for signal <PIX_STORE_EN>.
WARNING:Xst:737 - Found 2-bit latch for signal <state1>.
    Found 19-bit adder for signal <$n0003> created at line 89.
    Found 19-bit adder for signal <$n0006> created at line 96.
    Found 10x11-bit multiplier for signal <$n0015> created at line 89.
    Found 11-bit comparator greatequal for signal <$n0029> created at line 83.
    Found 11-bit adder for signal <$old_PIX_COUNTER_1>.
    Found 19-bit up counter for signal <EVEN_RAMA_OUT>.
    Found 8-bit register for signal <EVEN_RAMD_OUT>.
    Found 10-bit up counter for signal <LINE_COUNTER>.
    Found 1-bit register for signal <odd_oe_out>.
    Found 19-bit up counter for signal <ODD_RAMA_OUT>.
    Found 8-bit register for signal <ODD_RAMD_OUT>.
    Found 8-bit register for signal <PB_OUT>.
    Found 11-bit register for signal <PIX_COUNTER>.
    Found 1-bit register for signal <slwr_out>.
    Found 8 1-bit 2-to-1 multiplexers.
WARNING:Xst:1306 - Output <SLRD> is never assigned.
WARNING:Xst:647 - Input <FLAG<2>> is never used.
WARNING:Xst:647 - Input <FLAG<0>> is never used.
WARNING:Xst:649 - Inout <PA<7>> is never used.
WARNING:Xst:649 - Inout <PA<6>> is never used.
WARNING:Xst:649 - Inout <PA<3>> is never used.
WARNING:Xst:649 - Inout <PA<2>> is never used.
WARNING:Xst:649 - Inout <PA<1>> is never used.
WARNING:Xst:649 - Inout <PA<0>> is never used.
WARNING:Xst:1306 - Output <PD<7>> is never assigned.
WARNING:Xst:1306 - Output <PD<6>> is never assigned.
WARNING:Xst:1306 - Output <PD<5>> is never assigned.
WARNING:Xst:1306 - Output <PD<4>> is never assigned.
WARNING:Xst:1306 - Output <PD<3>> is never assigned.
WARNING:Xst:1306 - Output <PD<2>> is never assigned.
WARNING:Xst:1306 - Output <PD<1>> is never assigned.
WARNING:Xst:1306 - Output <PD<0>> is never assigned.
    Summary:
inferred   3 Counter(s).
inferred   2 D-type flip-flop(s).
inferred   3 Adder/Subtracter(s).
inferred   1 Multiplier(s).
inferred   1 Comparator(s).
Unit <usbsaa7113_top> synthesized.


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

Macro Statistics
# Registers                        : 8
  11-bit register                  : 1
  8-bit register                   : 3
  1-bit register                   : 2
  19-bit register                  : 2
# Latches                          : 5
  2-bit latch                      : 2
  1-bit latch                      : 3
# Counters                         : 3
  19-bit up counter                : 2
  10-bit up counter                : 1
# Multiplexers                     : 1
  2-to-1 multiplexer               : 1
# Adders/Subtractors               : 3
  11-bit adder                     : 1
  19-bit adder                     : 2
# Multipliers                      : 1
  10x11-bit multiplier             : 1
# Comparators                      : 1
  11-bit comparator greatequal     : 1

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

=========================================================================
*                         Low Level Synthesis                           *
=========================================================================
Library "D:/Xilinx52/xpla3/data/lib.xst" Consulted
WARNING:Xst:1293 - FF/Latch  <FIFOADDR_0> is constant in block <usbsaa7113_top>.
Library "D:/Xilinx52/data/librtl.xst" Consulted
WARNING:Xst:1291 - FF/Latch <state1_0> is unconnected in block <usbsaa7113_top>.
WARNING:Xst:1291 - FF/Latch <PIX_STORE_EN> is unconnected in block <usbsaa7113_top>.
WARNING:Xst:1291 - FF/Latch <ODD_FIELD_STORE_EN> is unconnected in block <usbsaa7113_top>.
WARNING:Xst:1291 - FF/Latch <EVEN_FIELD_STORE_EN> is unconnected in block <usbsaa7113_top>.
WARNING:Xst:1291 - FF/Latch <state1_1> is unconnected in block <usbsaa7113_top>.
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_FIELD_STORE_EN> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_CE> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_WE> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <even_we_out> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_SRAMFREE> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <slwr_out> not replaced by logic
Signal is stuck at VCC
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_FIELD_STORE_EN> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_STORE_EN> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_SRAMFREE> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_18> not replaced by logic
Sources are: EVEN_RAMA_OUT<18>:EVEN_RAMA_OUT<18>, EVEN_RAMA_OUT_ren_18:Q, EVEN_RAMA_OUT_18:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_17> not replaced by logic
Sources are: EVEN_RAMA_OUT<17>:EVEN_RAMA_OUT<17>, EVEN_RAMA_OUT_ren_17:Q, EVEN_RAMA_OUT_17:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_16> not replaced by logic
Sources are: EVEN_RAMA_OUT<16>:EVEN_RAMA_OUT<16>, EVEN_RAMA_OUT_ren_16:Q, EVEN_RAMA_OUT_16:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_15> not replaced by logic
Sources are: EVEN_RAMA_OUT<15>:EVEN_RAMA_OUT<15>, EVEN_RAMA_OUT_ren_15:Q, EVEN_RAMA_OUT_15:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_14> not replaced by logic
Sources are: EVEN_RAMA_OUT<14>:EVEN_RAMA_OUT<14>, EVEN_RAMA_OUT_ren_14:Q, EVEN_RAMA_OUT_14:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_13> not replaced by logic
Sources are: EVEN_RAMA_OUT<13>:EVEN_RAMA_OUT<13>, EVEN_RAMA_OUT_ren_13:Q, EVEN_RAMA_OUT_13:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_12> not replaced by logic
Sources are: EVEN_RAMA_OUT<12>:EVEN_RAMA_OUT<12>, EVEN_RAMA_OUT_ren_12:Q, EVEN_RAMA_OUT_12:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_11> not replaced by logic
Sources are: EVEN_RAMA_OUT<11>:EVEN_RAMA_OUT<11>, EVEN_RAMA_OUT_ren_11:Q, EVEN_RAMA_OUT_11:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_10> not replaced by logic
Sources are: EVEN_RAMA_OUT<10>:EVEN_RAMA_OUT<10>, EVEN_RAMA_OUT_ren_10:Q, EVEN_RAMA_OUT_10:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_9> not replaced by logic
Sources are: EVEN_RAMA_OUT<9>:EVEN_RAMA_OUT<9>, EVEN_RAMA_OUT_ren_9:Q, EVEN_RAMA_OUT_9:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_8> not replaced by logic
Sources are: EVEN_RAMA_OUT<8>:EVEN_RAMA_OUT<8>, EVEN_RAMA_OUT_ren_8:Q, EVEN_RAMA_OUT_8:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_7> not replaced by logic
Sources are: EVEN_RAMA_OUT<7>:EVEN_RAMA_OUT<7>, EVEN_RAMA_OUT_ren_7:Q, EVEN_RAMA_OUT_7:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_6> not replaced by logic
Sources are: EVEN_RAMA_OUT<6>:EVEN_RAMA_OUT<6>, EVEN_RAMA_OUT_ren_6:Q, EVEN_RAMA_OUT_6:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_5> not replaced by logic
Sources are: EVEN_RAMA_OUT<5>:EVEN_RAMA_OUT<5>, EVEN_RAMA_OUT_ren_5:Q, EVEN_RAMA_OUT_5:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_4> not replaced by logic
Sources are: EVEN_RAMA_OUT<4>:EVEN_RAMA_OUT<4>, EVEN_RAMA_OUT_ren_4:Q, EVEN_RAMA_OUT_4:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_3> not replaced by logic
Sources are: EVEN_RAMA_OUT<3>:EVEN_RAMA_OUT<3>, EVEN_RAMA_OUT_ren_3:Q, EVEN_RAMA_OUT_3:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_2> not replaced by logic
Sources are: EVEN_RAMA_OUT<2>:EVEN_RAMA_OUT<2>, EVEN_RAMA_OUT_ren_2:Q, EVEN_RAMA_OUT_2:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_1> not replaced by logic
Sources are: EVEN_RAMA_OUT<1>:EVEN_RAMA_OUT<1>, EVEN_RAMA_OUT_ren_1:Q, EVEN_RAMA_OUT_1:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <EVEN_RAMA_OUT_0> not replaced by logic
Sources are: EVEN_RAMA_OUT<0>:EVEN_RAMA_OUT<0>, EVEN_RAMA_OUT_ren_0:Q, EVEN_RAMA_OUT_0:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_18> not replaced by logic
Sources are: ODD_RAMA_OUT<18>:ODD_RAMA_OUT<18>, ODD_RAMA_OUT_ren_0_18:Q, ODD_RAMA_OUT_18:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_17> not replaced by logic
Sources are: ODD_RAMA_OUT<17>:ODD_RAMA_OUT<17>, ODD_RAMA_OUT_ren_0_17:Q, ODD_RAMA_OUT_17:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_16> not replaced by logic
Sources are: ODD_RAMA_OUT<16>:ODD_RAMA_OUT<16>, ODD_RAMA_OUT_ren_0_16:Q, ODD_RAMA_OUT_16:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_15> not replaced by logic
Sources are: ODD_RAMA_OUT<15>:ODD_RAMA_OUT<15>, ODD_RAMA_OUT_ren_0_15:Q, ODD_RAMA_OUT_15:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_14> not replaced by logic
Sources are: ODD_RAMA_OUT<14>:ODD_RAMA_OUT<14>, ODD_RAMA_OUT_ren_0_14:Q, ODD_RAMA_OUT_14:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_13> not replaced by logic
Sources are: ODD_RAMA_OUT<13>:ODD_RAMA_OUT<13>, ODD_RAMA_OUT_ren_0_13:Q, ODD_RAMA_OUT_13:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_12> not replaced by logic
Sources are: ODD_RAMA_OUT<12>:ODD_RAMA_OUT<12>, ODD_RAMA_OUT_ren_0_12:Q, ODD_RAMA_OUT_12:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_11> not replaced by logic
Sources are: ODD_RAMA_OUT<11>:ODD_RAMA_OUT<11>, ODD_RAMA_OUT_ren_0_11:Q, ODD_RAMA_OUT_11:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_10> not replaced by logic
Sources are: ODD_RAMA_OUT<10>:ODD_RAMA_OUT<10>, ODD_RAMA_OUT_ren_0_10:Q, ODD_RAMA_OUT_10:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_9> not replaced by logic
Sources are: ODD_RAMA_OUT<9>:ODD_RAMA_OUT<9>, ODD_RAMA_OUT_ren_0_9:Q, ODD_RAMA_OUT_9:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_8> not replaced by logic
Sources are: ODD_RAMA_OUT<8>:ODD_RAMA_OUT<8>, ODD_RAMA_OUT_ren_0_8:Q, ODD_RAMA_OUT_8:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_7> not replaced by logic
Sources are: ODD_RAMA_OUT<7>:ODD_RAMA_OUT<7>, ODD_RAMA_OUT_ren_0_7:Q, ODD_RAMA_OUT_7:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_6> not replaced by logic
Sources are: ODD_RAMA_OUT<6>:ODD_RAMA_OUT<6>, ODD_RAMA_OUT_ren_0_6:Q, ODD_RAMA_OUT_6:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_5> not replaced by logic
Sources are: ODD_RAMA_OUT<5>:ODD_RAMA_OUT<5>, ODD_RAMA_OUT_ren_0_5:Q, ODD_RAMA_OUT_5:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_4> not replaced by logic
Sources are: ODD_RAMA_OUT<4>:ODD_RAMA_OUT<4>, ODD_RAMA_OUT_ren_0_4:Q, ODD_RAMA_OUT_4:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_3> not replaced by logic
Sources are: ODD_RAMA_OUT<3>:ODD_RAMA_OUT<3>, ODD_RAMA_OUT_ren_0_3:Q, ODD_RAMA_OUT_3:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_2> not replaced by logic
Sources are: ODD_RAMA_OUT<2>:ODD_RAMA_OUT<2>, ODD_RAMA_OUT_ren_0_2:Q, ODD_RAMA_OUT_2:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_1> not replaced by logic
Sources are: ODD_RAMA_OUT<1>:ODD_RAMA_OUT<1>, ODD_RAMA_OUT_ren_0_1:Q, ODD_RAMA_OUT_1:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_RAMA_OUT_0> not replaced by logic
Sources are: ODD_RAMA_OUT<0>:ODD_RAMA_OUT<0>, ODD_RAMA_OUT_ren_0_0:Q, ODD_RAMA_OUT_0:Q
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_10> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_9> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_8> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_7> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_6> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_5> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_4> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_3> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_2> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_1> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <PIX_COUNTER_0> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_9> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_8> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_7> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_6> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_5> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_4> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_3> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_2> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_1> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <LINE_COUNTER_0> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <state1_1> not replaced by logic
Signal is stuck at GND
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <state1_0> not replaced by logic
Signal is stuck at GND
ERROR:Xst:415 - Synthesis failed
CPU : 6.54 / 7.14 s | Elapsed : 6.00 / 7.00 s
 
-->

Total memory usage is 60540 kilobytes

先把警告改掉

楼上的朋友，能帮我分析一下么，比如下面的提示下，是什么原因导致的，
WARNING:Xst:528 - Multi-source in Unit <usbsaa7113_top> on signal <ODD_CE> not replaced by logic
Signal is stuck at GND

应该是用了多个源来驱动一个输入,这是错误用法,当然综合不了.