freq_change.syr

本代码介绍了使用VHDL开发FPGA的一般流程

Release 6.2i - xst G.28
Copyright (c) 1995-2004 Xilinx, Inc.  All rights reserved.
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--> Parameter xsthdpdir set to ./xst
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--> Reading design: freq_change.prj

TABLE OF CONTENTS
  1) Synthesis Options Summary
  2) HDL Compilation
  3) HDL Analysis
  4) HDL Synthesis
  5) Advanced HDL Synthesis
     5.1) HDL Synthesis Report
  6) Low Level Synthesis
  7) Final Report
     7.1) Device utilization summary
     7.2) TIMING REPORT


=========================================================================
*                      Synthesis Options Summary                        *
=========================================================================
---- Source Parameters
Input File Name                    : freq_change.prj
Input Format                       : mixed
Ignore Synthesis Constraint File   : NO
Verilog Include Directory          : 

---- Target Parameters
Output File Name                   : freq_change
Output Format                      : NGC
Target Device                      : xc2s100-6-pq208

---- Source Options
Top Module Name                    : freq_change
Automatic FSM Extraction           : YES
FSM Encoding Algorithm             : Auto
FSM Style                          : lut
RAM Extraction                     : Yes
RAM Style                          : Auto
ROM Extraction                     : Yes
ROM Style                          : Auto
Mux Extraction                     : YES
Mux Style                          : Auto
Decoder Extraction                 : YES
Priority Encoder Extraction        : YES
Shift Register Extraction          : YES
Logical Shifter Extraction         : YES
XOR Collapsing                     : YES
Resource Sharing                   : YES
Multiplier Style                   : lut
Automatic Register Balancing       : No

---- Target Options
Add IO Buffers                     : YES
Global Maximum Fanout              : 100
Add Generic Clock Buffer(BUFG)     : 4
Register Duplication               : YES
Equivalent register Removal        : YES
Slice Packing                      : YES
Pack IO Registers into IOBs        : auto

---- General Options
Optimization Goal                  : Speed
Optimization Effort                : 1
Keep Hierarchy                     : NO
Global Optimization                : AllClockNets
RTL Output                         : ONLY
Write Timing Constraints           : NO
Hierarchy Separator                : _
Bus Delimiter                      : <>
Case Specifier                     : maintain
Slice Utilization Ratio            : 100
Slice Utilization Ratio Delta      : 5

---- Other Options
lso                                : freq_change.lso
Read Cores                         : YES
cross_clock_analysis               : NO
verilog2001                        : YES
Optimize Instantiated Primitives   : NO
tristate2logic                     : No

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


=========================================================================
*                          HDL Compilation                              *
=========================================================================
Compiling vhdl file E:/lvbin/Freq_counter/free_change.vhdl in Library work.
Architecture behavioral of Entity free_change is up to date.
Compiling vhdl file E:/lvbin/Freq_counter/freq_change.vhdl in Library work.
Architecture behavioral of Entity freq_change is up to date.

=========================================================================
*                            HDL Analysis                               *
=========================================================================
Analyzing Entity <freq_change> (Architecture <behavioral>).
    Set property "buffer_type = ibuf" for signal <clk_in> in unit <Free_Change>.
    Set property "buffer_type = ibuf" for signal <clk_in> in unit <Free_Change0_>.
    Set property "buffer_type = ibuf" for signal <clk_in> in unit <Free_Change0_> (previous value was "ibuf").
    Set property "buffer_type = ibuf" for signal <clk_in> in unit <Free_Change0_> (previous value was "ibuf").
    Set property "buffer_type = ibuf" for signal <clk_in> in unit <Free_Change0_> (previous value was "ibuf").
Entity <freq_change> analyzed. Unit <freq_change> generated.

Analyzing generic Entity <Free_Change> (Architecture <behavioral>).
	rate = 3200
    Set property "buffer_type = ibuf" for signal <clk_in> in unit <Free_Change> (previous value was "ibuf").
Entity <Free_Change> analyzed. Unit <Free_Change> generated.

Analyzing generic Entity <Free_Change> (Architecture <behavioral>).
	rate = 10
    Set property "buffer_type = ibuf" for signal <clk_in> in unit <Free_Change0_> (previous value was "ibuf").
Entity <Free_Change> analyzed. Unit <Free_Change0> generated.


=========================================================================
*                           HDL Synthesis                               *
=========================================================================

Synthesizing Unit <Free_Change0>.
    Related source file is E:/lvbin/Freq_counter/free_change.vhdl.
    Found 1-bit register for signal <clk_out>.
    Found 4-bit comparator less for signal <$n0002> created at line 27.
    Found 4-bit up counter for signal <count>.
    Summary:
	inferred   1 Counter(s).
	inferred   1 D-type flip-flop(s).
	inferred   1 Comparator(s).
Unit <Free_Change0> synthesized.


Synthesizing Unit <Free_Change>.
    Related source file is E:/lvbin/Freq_counter/free_change.vhdl.
    Found 1-bit register for signal <clk_out>.
    Found 12-bit comparator less for signal <$n0002> created at line 27.
    Found 12-bit up counter for signal <count>.
    Summary:
	inferred   1 Counter(s).
	inferred   1 D-type flip-flop(s).
	inferred   1 Comparator(s).
Unit <Free_Change> synthesized.


Synthesizing Unit <freq_change>.
    Related source file is E:/lvbin/Freq_counter/freq_change.vhdl.
Unit <freq_change> synthesized.


=========================================================================
*                       Advanced HDL Synthesis                          *
=========================================================================

Advanced RAM inference ...
Advanced multiplier inference ...
Dynamic shift register inference ...

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

Macro Statistics
# Counters                         : 5
 12-bit up counter                 : 1
 4-bit up counter                  : 4
# Registers                        : 5
 1-bit register                    : 5
# Comparators                      : 5
 12-bit comparator less            : 1
 4-bit comparator less             : 4

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

=========================================================================
*                         Low Level Synthesis                           *
=========================================================================

=========================================================================
*                            Final Report                               *
=========================================================================
Final Results
RTL Top Level Output File Name     : freq_change.ngr
Keep Hierarchy                     : NO

Design Statistics
# IOs                              : 5

Cell Usage :
# BELS                             : 5
#      VCC                         : 5
# FlipFlops/Latches                : 25
#      FDR                         : 20
#      FDS                         : 5
=========================================================================
CPU : 1.50 / 2.61 s | Elapsed : 1.00 / 3.00 s
 
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Total memory usage is 52280 kilobytes