Hey Andrea,

I think (http://www.xilinx.com/support/answers/23165.html) the ngc
file is all you're going to get, unless you run the compile again with
the XIL_TIMING_ALLOW_IMPOSSIBLE variable set to 1.

Your error is some specific component that has impossible timing
constraints -- it's not just general routing difficulties. I don't
think it can be ADC related unless you've changed the ADC parameters
since your last compile. I think it has to be some block you've
changed the parameters of or added since your last successful compile
-- embedded multipliers with low latency and really large input
bitwidths are one example of a common block which I've seen throw this
error. I'm sure there are plenty of others...

Cheers,
Jack

On 2 October 2013 15:34, Andrea Mattana <[email protected]> wrote:
> I'm sure, the directory is correct, because I do that very often, but
> in this case the system.twx is really missing. The only file readable
> from the timingan is a ngc file but I don't know how to investigate
> timing with that.
>
> Can be an issue related to the ADC or some resources ended? This is
> the last succesfully compilation, I have added few blocks after that:
>
> Design Summary:
> Number of errors:      0
> Number of warnings: 2216
> Slice Logic Utilization:
>   Number of Slice Registers:                34,241 out of  58,880   58%
>     Number used as Flip Flops:              34,239
>     Number used as Latch-thrus:                  2
>   Number of Slice LUTs:                     28,529 out of  58,880   48%
>     Number used as logic:                   23,304 out of  58,880   39%
>       Number using O6 output only:          17,536
>       Number using O5 output only:           4,428
>       Number using O5 and O6:                1,340
>     Number used as Memory:                   4,890 out of  24,320   20%
>       Number used as Dual Port RAM:            304
>         Number using O6 output only:           188
>         Number using O5 and O6:                116
>       Number used as Shift Register:         4,586
>         Number using O6 output only:         4,586
>     Number used as exclusive route-thru:       335
>   Number of route-thrus:                     4,992
>     Number using O6 output only:             4,747
>     Number using O5 output only:               241
>     Number using O5 and O6:                      4
>
> Slice Logic Distribution:
>   Number of occupied Slices:                12,032 out of  14,720   81%
>   Number of LUT Flip Flop pairs used:       40,207
>     Number with an unused Flip Flop:         5,966 out of  40,207   14%
>     Number with an unused LUT:              11,678 out of  40,207   29%
>     Number of fully used LUT-FF pairs:      22,563 out of  40,207   56%
>     Number of unique control sets:             584
>     Number of slice register sites lost
>       to control set restrictions:           1,187 out of  58,880    2%
>
>   A LUT Flip Flop pair for this architecture represents one LUT paired with
>   one Flip Flop within a slice.  A control set is a unique combination of
>   clock, reset, set, and enable signals for a registered element.
>   The Slice Logic Distribution report is not meaningful if the design is
>   over-mapped for a non-slice resource or if Placement fails.
>   OVERMAPPING of BRAM resources should be ignored if the design is
>   over-mapped for a non-BRAM resource or if placement fails.
>
> IO Utilization:
>   Number of bonded IOBs:                       151 out of     640   23%
>     Number of LOCed IOBs:                      151 out of     151  100%
>     IOB Flip Flops:                            114
>     Number of bonded IPADs:                     36 out of      50   72%
>     Number of bonded OPADs:                     32 out of      32  100%
>
> Specific Feature Utilization:
>   Number of BlockRAM/FIFO:                     219 out of     244   89%
>     Number using BlockRAM only:                219
>     Total primitives used:
>       Number of 36k BlockRAM used:             175
>       Number of 18k BlockRAM used:              77
>     Total Memory used (KB):                  7,686 out of   8,784   87%
>   Number of BUFG/BUFGCTRLs:                     12 out of      32   37%
>     Number used as BUFGs:                       12
>   Number of IDELAYCTRLs:                         6 out of      22   27%
>   Number of BUFDSs:                              2 out of       8   25%
>   Number of CRC64s:                              2 out of      16   12%
>   Number of DCM_ADVs:                            4 out of      12   33%
>   Number of DSP48Es:                           233 out of     640   36%
>   Number of GTP_DUALs:                           8 out of       8  100%
>   Number of PLL_ADVs:                            2 out of       6   33%
>
> Average Fanout of Non-Clock Nets:                2.16
>
> Peak Memory Usage:  1931 MB
> Total REAL time to MAP completion:  13 mins 41 secs
> Total CPU time to MAP completion:   13 mins 33 secs
>
> Mapping completed.
> See MAP report file "system_map.mrp" for details.
>
>
>
> #----------------------------------------------#
> # Starting program par
> # par -ise ../__xps/ise/system.ise -xe n -w -ol high system_map.ncd system.ncd
> system.pcf
> #----------------------------------------------#
> Release 11.4 - par L.68 (lin64)
> Copyright (c) 1995-2009 Xilinx, Inc.  All rights reserved.
> PMSPEC -- Overriding Xilinx file
> </opt/Xilinx/11.1/EDK/data/parBmgr.acd> with local file
> </opt/Xilinx/11.1/ISE/data/parBmgr.acd>
>
>
> Loading device for application Rf_Device from file '5vsx95t.nph' in 
> environment
> /opt/Xilinx/11.1/ISE:/opt/Xilinx/11.1/EDK.
>    "system" is an NCD, version 3.2, device xc5vsx95t, package ff1136, speed -1
>
> Constraints file: system.pcf.
>    "system" is an NCD, version 3.2, device xc5vsx95t, package ff1136, speed -1
> WARNING:ConstraintSystem:65 - Constraint <NET
>    
> "mad_corr_beam_x64_adc/mad_corr_beam_x64_adc/x64_adc_infrastructure_inst/adc_clk_ibufds"
>         PERIOD = 4.1667 ns
>    HIGH 50%;> [system.pcf(10135)] overrides constraint <NET
>    
> "mad_corr_beam_x64_adc/mad_corr_beam_x64_adc/x64_adc_infrastructure_inst/adc_clk_ibufds"
>         PERIOD = 4.1667 ns
>    HIGH 50%;> [system.pcf(10132)].
>
>
> Initializing temperature to 85.000 Celsius. (default - Range: 0.000 to
> 85.000 Celsius)
> Initializing voltage to 0.950 Volts. (default - Range: 0.950 to 1.050 Volts)
>
> INFO:Timing:3386 - Intersecting Constraints found and resolved.  For
> more information, see the TSI report.  Please
>    consult the Xilinx Command Line Tools User Guide for information on
> generating a TSI report.
>
> Device speed data version:  "PRODUCTION 1.66 2009-11-16".
>
>
>
> Device Utilization Summary:
>
>    Number of BUFDSs                          2 out of 8      25%
>    Number of BUFGs                          12 out of 32     37%
>    Number of CRC64s                          2 out of 16     12%
>    Number of DCM_ADVs                        4 out of 12     33%
>    Number of DSP48Es                       233 out of 640    36%
>    Number of GTP_DUALs                       8 out of 8     100%
>    Number of IDELAYCTRLs                     6 out of 22     27%
>    Number of ILOGICs                        92 out of 800    11%
>    Number of External IOBs                 151 out of 640    23%
>       Number of LOCed IOBs                 151 out of 151   100%
>
>    Number of IODELAYs                       44 out of 800     5%
>    Number of External IPADs                 36 out of 690     5%
>       Number of LOCed IPADs                 36 out of 36    100%
>
>    Number of OLOGICs                        22 out of 800     2%
>    Number of External OPADs                 32 out of 32    100%
>       Number of LOCed OPADs                 32 out of 32    100%
>
>    Number of PLL_ADVs                        2 out of 6      33%
>    Number of RAMB18X2s                      44 out of 244    18%
>    Number of RAMB36SDP_EXPs                 10 out of 244     4%
>    Number of RAMB36_EXPs                   165 out of 244    67%
>    Number of Slice Registers             34241 out of 58880  58%
>       Number used as Flip Flops          34239
>       Number used as Latches                 0
>       Number used as LatchThrus              2
>
>    Number of Slice LUTS                  28529 out of 58880  48%
>    Number of Slice LUT-Flip Flop pairs   40207 out of 58880  68%
>
>
> Overall effort level (-ol):   High
> Router effort level (-rl):    High
>
> Starting initial Timing Analysis.  REAL time: 35 secs
> Finished initial Timing Analysis.  REAL time: 36 secs
>
> Starting Router
>
>
> Wirelength Stats for nets on all pins. NumPins: 138867
>
> Phase  1  : 205081 unrouted;      REAL time: 41 secs
>
> Phase  2  : 125991 unrouted;      REAL time: 55 secs
>
> Phase  3  : 38237 unrouted;      REAL time: 1 mins 51 secs
>
> Phase  4  : 38256 unrouted; (Setup:0, Hold:38041, Component Switching
> Limit:0)     REAL time: 2 mins
>
> Updating file: system.ncd with current fully routed design.
>
> Phase  5  : 0 unrouted; (Setup:0, Hold:35039, Component Switching
> Limit:0)     REAL time: 3 mins 10 secs
>
> Phase  6  : 0 unrouted; (Setup:0, Hold:35039, Component Switching
> Limit:0)     REAL time: 3 mins 10 secs
>
> Phase  7  : 0 unrouted; (Setup:0, Hold:35039, Component Switching
> Limit:0)     REAL time: 3 mins 10 secs
>
> Phase  8  : 0 unrouted; (Setup:0, Hold:35039, Component Switching
> Limit:0)     REAL time: 3 mins 10 secs
>
> Phase  9  : 0 unrouted; (Setup:0, Hold:0, Component Switching Limit:0)
>     REAL time: 3 mins 23 secs
>
> Phase 10  : 0 unrouted; (Setup:0, Hold:0, Component Switching Limit:0)
>     REAL time: 3 mins 38 secs
> Total REAL time to Router completion: 3 mins 38 secs
> Total CPU time to Router completion: 3 mins 38 secs
>
> Partition Implementation Status
> -------------------------------
>
>   No Partitions were found in this design.
>
> -------------------------------
>
> Generating "PAR" statistics.
>
> **************************
> Generating Clock Report
> **************************
>
> +---------------------+--------------+------+------+------------+-------------+
> |        Clock Net    |   Resource   |Locked|Fanout|Net Skew(ns)|Max 
> Delay(ns)|
> +---------------------+--------------+------+------+------------+-------------+
> |            adc0_clk | BUFGCTRL_X0Y4| No   | 9822 |  0.904     |  2.444      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |             epb_clk | BUFGCTRL_X0Y1| No   |  840 |  0.822     |  2.354      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |           mgt_clk_0 |BUFGCTRL_X0Y25| No   |  773 |  0.695     |  2.320      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |       adc_clk_4x_6d |BUFGCTRL_X0Y30| No   |  166 |  0.661     |  2.185      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |mad_corr_beam_x64_ad |              |      |      |            |             
> |
> |          c/adc_clk0 |BUFGCTRL_X0Y29| No   |  616 |  0.824     |  2.349      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |xaui_infrastructure_ |              |      |      |            |             
> |
> |      inst/mgt_clk_1 | BUFGCTRL_X0Y3| No   |   16 |  0.243     |  2.157      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |xaui_infrastructure_ |              |      |      |            |             
> |
> |inst/xaui_infrastruc |              |      |      |            |             
> |
> |ture_inst/mgt_clk_mu |              |      |      |            |             
> |
> |              lt_2_t | BUFGCTRL_X0Y2| No   |   16 |  0.243     |  2.157      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |infrastructure_inst/ |              |      |      |            |             
> |
> |             dly_clk |BUFGCTRL_X0Y27| No   |    6 |  0.173     |  2.140      
> |
> +---------------------+--------------+------+------+------------+-------------+
> |xaui_infrastructure_ |              |      |      |            |             
> |
> |inst/xaui_infrastruc |              |      |      |            |             
> |
> |ture_inst/mgt_clk_mu |              |      |      |            |             
> |
> |              lt_2_b |BUFGCTRL_X0Y26| No   |   16 |  0.243     |  2.157      
> |
> +---------------------+--------------+------+------+------------+-------------+
>
> * Net Skew is the difference between the minimum and maximum routing
> only delays for the net. Note this is different from Clock Skew which
> is reported in TRCE timing report. Clock Skew is the difference between
> the minimum and maximum path delays which includes logic delays.
>
> Timing Score: 0 (Setup: 0, Hold: 0, Component Switching Limit: 0)
>
> Number of Timing Constraints that were not applied: 3
>
> Asterisk (*) preceding a constraint indicates it was not met.
>    This may be due to a setup or hold violation.
>
> ----------------------------------------------------------------------------------------------------------
>   Constraint                                |    Check    | Worst Case
> |  Best Case | Timing |   Timing
>                                             |             |    Slack
> | Achievable | Errors |    Score
> ----------------------------------------------------------------------------------------------------------
>   PERIOD analysis for net "mad_corr_beam_x6 | SETUP       |
> 0.025ns|     6.225ns|       0|           0
>   4_adc_fab_phase_gen/mad_corr_beam_x64_adc | HOLD        |
> 0.109ns|            |       0|           0
>   _fab_phase_gen/CLK0_BUF" derived from  PE |             |
> |            |        |
>   RIOD analysis for net "mad_corr_beam_x64_ |             |
> |            |        |
>   adc/fab_clk1" derived from NET        "ma |             |
> |            |        |
>   d_corr_beam_x64_adc/mad_corr_beam_x64_adc |             |
> |            |        |
>   /x64_adc_infrastructure_inst/adc_clk_ibuf |             |
> |            |        |
>   ds"        PERIOD = 4.1667 ns HIGH 50%    |             |
> |            |        |
> ----------------------------------------------------------------------------------------------------------
>   PERIOD analysis for net "mad_corr_beam_x6 | SETUP       |
> 0.053ns|     4.113ns|       0|           0
>   4_adc/mad_corr_beam_x64_adc/x64_adc_infra | HOLD        |
> 0.306ns|            |       0|           0
>   structure_inst/adc_clk_dcm" derived from  |             |
> |            |        |
>    NET        "mad_corr_beam_x64_adc/mad_co |             |
> |            |        |
>   rr_beam_x64_adc/x64_adc_infrastructure_in |             |
> |            |        |
>   st/adc_clk_ibufds"        PERIOD = 4.1667 |             |
> |            |        |
>    ns HIGH 50%                              |             |
> |            |        |
> ----------------------------------------------------------------------------------------------------------
>   TS_mgt_clk_0 = PERIOD TIMEGRP "mgt_clk_0" | SETUP       |
> 0.101ns|     6.299ns|       0|           0
>    156.25 MHz HIGH 50%                      | HOLD        |
> 0.130ns|            |       0|           0
> ----------------------------------------------------------------------------------------------------------
>   PERIOD analysis for net "mad_corr_beam_x6 | SETUP       |
> 0.140ns|     6.110ns|       0|           0
>   4_adc/fab_clk1" derived from  NET         | HOLD        |
> 0.335ns|            |       0|           0
>   "mad_corr_beam_x64_adc/mad_corr_beam_x64_ |             |
> |            |        |
>   adc/x64_adc_infrastructure_inst/adc_clk_i |             |
> |            |        |
>   bufds"        PERIOD = 4.1667 ns HIGH 50% |             |
> |            |        |
> ----------------------------------------------------------------------------------------------------------
>   NET         "mad_corr_beam_x64_adc/mad_co | MINLOWPULSE |
> 0.566ns|     3.600ns|       0|           0
>   rr_beam_x64_adc/x64_adc_infrastructure_in |             |
> |            |        |
>   st/adc_clk_ibufds"         PERIOD = 4.166 |             |
> |            |        |
>   7 ns HIGH 50%                             |             |
> |            |        |
> ----------------------------------------------------------------------------------------------------------
>   TS_sys_clk_n = PERIOD TIMEGRP "sys_clk_n" | MINPERIOD   |
> 1.668ns|     8.332ns|       0|           0
>    100 MHz HIGH 50%                         |             |
> |            |        |
> ----------------------------------------------------------------------------------------------------------
>   NET "epb_cs_n_IBUF" MAXDELAY = 4 ns       | MAXDELAY    |
> 1.701ns|     2.299ns|       0|           0
> ----------------------------------------------------------------------------------------------------------
>   TS_RAM_FF = MAXDELAY FROM TIMEGRP "RAMSOU | SETUP       |
> 1.769ns|     4.481ns|       0|           0
>   RCE" TO TIMEGRP "FFDEST" 6.25 ns          | HOLD        |
> 1.465ns|            |       0|           0
>   DATAPATHONLY                              |             |
> |            |        |
> ----------------------------------------------------------------------------------------------------------
>   TS_mgt_clk_mult_2_b = PERIOD TIMEGRP "mgt | SETUP       |
> 2.059ns|     4.341ns|       0|           0
>   _clk_mult_2_b" 156.25 MHz HIGH 50%        | HOLD        |
> 1.456ns|            |       0|           0
> ----------------------------------------------------------------------------------------------------------
>   NET         "mad_corr_beam_x64_adc/mad_co | N/A         |
> N/A|         N/A|     N/A|         N/A
>   rr_beam_x64_adc/x64_adc_infrastructure_in |             |
> |            |        |
>   st/adc_clk_ibufds"         PERIOD = 4.166 |             |
> |            |        |
>   7 ns HIGH 50%                             |             |
> |            |        |
> ----------------------------------------------------------------------------------------------------------
>
>
> Derived Constraint Report
> Derived Constraints for
> mad_corr_beam_x64_adc/mad_corr_beam_x64_adc/x64_adc_infrastructure_inst/adc_clk_ibufds
> +-------------------------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
> |                               |   Period    |       Actual Period
>    |      Timing Errors        |      Paths Analyzed       |
> |           Constraint          | Requirement
> |-------------+-------------|-------------+-------------|-------------+-------------|
> |                               |             |   Direct    |
> Derivative  |   Direct    | Derivative  |   Direct    | Derivative  |
> +-------------------------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
> |mad_corr_beam_x64_adc/mad_corr_|      4.167ns|      3.600ns|
> 4.150ns|            0|            0|            0|       767464|
> |beam_x64_adc/x64_adc_infrastruc|             |             |
>    |             |             |             |             |
> |ture_inst/adc_clk_ibufds       |             |             |
>    |             |             |             |             |
> | mad_corr_beam_x64_adc/mad_corr|      4.167ns|      4.113ns|
> N/A|            0|            0|         4528|            0|
> | _beam_x64_adc/x64_adc_infrastr|             |             |
>    |             |             |             |             |
> | ucture_inst/adc_clk_dcm       |             |             |
>    |             |             |             |             |
> | mad_corr_beam_x64_adc/fab_clk1|      6.250ns|      6.110ns|
> 6.225ns|            0|            0|         1375|       761561|
> |  mad_corr_beam_x64_adc_fab_pha|      6.250ns|      6.225ns|
> N/A|            0|            0|       761561|            0|
> |  se_gen/mad_corr_beam_x64_adc_|             |             |
>    |             |             |             |             |
> |  fab_phase_gen/CLK0_BUF       |             |             |
>    |             |             |             |             |
> +-------------------------------+-------------+-------------+-------------+-------------+-------------+-------------+-------------+
>
> All constraints were met.
> INFO:Timing:2761 - N/A entries in the Constraints list may indicate that the
>    constraint does not cover any paths or that it has no requested value.
>
>
> Generating Pad Report.
>
> All signals are completely routed.
>
> Total REAL time to PAR completion: 3 mins 49 secs
> Total CPU time to PAR completion: 3 mins 48 secs
>
> Peak Memory Usage:  1487 MB
>
> Placer: Placement generated during map.
> Routing: Completed - No errors found.
> Timing: Completed - No errors found.
>
> Number of error messages: 0
> Number of warning messages: 1
> Number of info messages: 1
>
> Writing design to file system.ncd
>
> Andrea
>
> 2013/10/2 John Ford <[email protected]>:
>>> Hi all,
>>>
>>> I'm compiling a model file for ROACH1 but I have to solve some timing
>>> constraints which are not met. Unfortunately, the system.twx file to
>>> be opened with the timing analyzer which should be found in
>>> XPS_R..BASE/implementations/ is missing.
>>
>> Hmm.  If it got as far as the snapshot below, the .twx file should have
>> been created.
>>
>> Are you looking in the directory created by the compile and not the one in
>> the library?  That is:
>>
>> .../<modelname>/XPS_ROACH_base/implementation/system.twx
>>
>> and not
>>
>> .../mlib_devel/xps_base/XPS_ROACH_base/implementation
>>
>> John
>>
>>>
>>> Do you have an idea?
>>>
>>> Cheers,
>>> Andrea
>>>
>>>
>>>
>>> Running delay-based LUT packing...
>>> Updating timing models...
>>> ERROR:Pack:1653 - At least one timing constraint is impossible to meet
>>> because
>>>    component delays alone exceed the constraint. A timing constraint
>>> summary
>>>    below shows the failing constraints (preceded with an Asterisk (*)).
>>> Please
>>>    use the Timing Analyzer (GUI) or TRCE (command line) with the Mapped
>>> NCD and
>>>    PCF files to identify which constraints and paths are failing because
>>> of the
>>>    component delays alone. If the failing path(s) is mapped to Xilinx
>>> components
>>>    as expected, consider relaxing the constraint. If it is not mapped to
>>>    components as expected, re-evaluate your HDL and how synthesis is
>>> optimizing
>>>    the path. To allow the tools to bypass this error, set the environment
>>>    variable XIL_TIMING_ALLOW_IMPOSSIBLE to 1.
>>>
>>>
>>>    For more information about the Timing Analyzer, consult the Xilinx
>>> Timing
>>>    Analyzer Reference manual; for more information on TRCE, consult the
>>> Xilinx
>>>    Command Line Tools User Guide "TRACE" chapter.
>>> INFO:Timing:3386 - Intersecting Constraints found and resolved.  For more
>>>    information, see the TSI report.  Please consult the Xilinx Command
>>> Line
>>>    Tools User Guide for information on generating a TSI report.
>>> INFO:Timing:3284 - This timing report was generated using estimated delay
>>>    information.  For accurate numbers, please refer to the post Place and
>>> Route
>>>    timing report.
>>> Number of Timing Constraints that were not applied: 3
>>>
>>> Asterisk (*) preceding a constraint indicates it was not met.
>>>    This may be due to a setup or hold violation.
>>>
>>> ----------------------------------------------------------------------------------------------------------
>>>   Constraint                                |    Check    | Worst Case
>>> |  Best Case | Timing |   Timing
>>>                                             |             |    Slack
>>> | Achievable | Errors |    Score
>>> ----------------------------------------------------------------------------------------------------------
>>> * PERIOD analysis for net "mad_corr_beam_x6 | SETUP       |
>>> -3.440ns|     9.690ns|     113|      272325
>>>   4_adc_fab_phase_gen/mad_corr_beam_x64_adc | HOLD        |
>>> -0.179ns|            |    6891|      366231
>>>   _fab_phase_gen/CLK0_BUF" derived from  PE |             |
>>> |            |        |
>>>   RIOD analysis for net "mad_corr_beam_x64_ |             |
>>> |            |        |
>>>   adc/fab_clk1" derived from NET "mad_corr_ |             |
>>> |            |        |
>>>   beam_x64_adc/mad_corr_beam_x64_adc/x64_ad |             |
>>> |            |        |
>>>   c_infrastructure_inst/adc_clk_ibufds" PER |             |
>>> |            |        |
>>>   IOD = 4.1667 ns HIGH 50% multiplied by 1. |             |
>>> |            |        |
>>>   50 to 6.250 nS and duty cycle corrected t |             |
>>> |            |        |
>>>   o HIGH 3.125 nS   duty cycle corrected to |             |
>>> |            |        |
>>>    6.250 nS  HIGH 3.125 nS                  |             |
>>> |            |        |
>>> ----------------------------------------------------------------------------------------------------------
>>> * TS_mgt_clk_0 = PERIOD TIMEGRP "mgt_clk_0" | SETUP       |
>>> 3.803ns|     2.597ns|       0|           0
>>>    156.25 MHz HIGH 50%                      | HOLD        |
>>> -1.513ns|            |     218|      146110
>>> ----------------------------------------------------------------------------------------------------------
>>> * TS_mgt_clk_mult_2_b = PERIOD TIMEGRP "mgt | SETUP       |
>>> 5.500ns|     0.900ns|       0|           0
>>>   _clk_mult_2_b" 156.25 MHz HIGH 50%        | HOLD        |
>>> -0.204ns|            |      18|        3672
>>> ----------------------------------------------------------------------------------------------------------
>>>   NET "mad_corr_beam_x64_adc/mad_corr_beam_ | MINLOWPULSE |
>>> 0.566ns|     3.600ns|       0|           0
>>>   x64_adc/x64_adc_infrastructure_inst/adc_c |             |
>>> |            |        |
>>>   lk_ibufds" PERIOD = 4.1667 ns HIGH 50%    |             |
>>> |            |        |
>>> ----------------------------------------------------------------------------------------------------------
>>>   PERIOD analysis for net "mad_corr_beam_x6 | SETUP       |
>>> 5.132ns|     1.118ns|       0|           0
>>>   4_adc/fab_clk1" derived from  NET "mad_co | HOLD        |
>>> 0.195ns|            |       0|           0
>>>   rr_beam_x64_adc/mad_corr_beam_x64_adc/x64 | MINLOWPULSE |
>>> 2.249ns|     4.000ns|       0|           0
>>>   _adc_infrastructure_inst/adc_clk_ibufds"  |             |
>>> |            |        |
>>>   PERIOD = 4.1667 ns HIGH 50%  multiplied b |             |
>>> |            |        |
>>>   y 1.50 to 6.250 nS and duty cycle correct |             |
>>> |            |        |
>>>   ed to HIGH 3.125 nS                       |             |
>>> |            |        |
>>> ----------------------------------------------------------------------------------------------------------
>>>   TS_sys_clk_n = PERIOD TIMEGRP "sys_clk_n" | MINPERIOD   |
>>> 1.668ns|     8.332ns|       0|           0
>>>    100 MHz HIGH 50%                         |             |
>>> |            |        |
>>> ----------------------------------------------------------------------------------------------------------
>>>   PERIOD analysis for net "mad_corr_beam_x6 | SETUP       |
>>> 2.874ns|     1.292ns|       0|           0
>>>   4_adc/mad_corr_beam_x64_adc/x64_adc_infra | HOLD        |
>>> 0.148ns|            |       0|           0
>>>   structure_inst/adc_clk_dcm" derived from  | MINPERIOD   |
>>> 1.945ns|     2.221ns|       0|           0
>>>    NET "mad_corr_beam_x64_adc/mad_corr_beam |             |
>>> |            |        |
>>>   _x64_adc/x64_adc_infrastructure_inst/adc_ |             |
>>> |            |        |
>>>   clk_ibufds" PERIOD = 4.1667 ns HIGH 50%   |             |
>>> |            |        |
>>>   duty cycle corrected to 4.167 nS  HIGH 2. |             |
>>> |            |        |
>>>   083 nS                                    |             |
>>> |            |        |
>>> ----------------------------------------------------------------------------------------------------------
>>>   NET "epb_cs_n_IBUF" MAXDELAY = 4 ns       | MAXDELAY    |
>>> 4.000ns|     0.000ns|       0|           0
>>> ----------------------------------------------------------------------------------------------------------
>>>   TS_RAM_FF = MAXDELAY FROM TIMEGRP "RAMSOU | SETUP       |
>>> 4.580ns|     1.670ns|       0|           0
>>>   RCE" TO TIMEGRP "FFDEST" 6.25 ns DATAPATH | HOLD        |
>>> 1.175ns|            |       0|           0
>>>   ONLY                                      |             |
>>> |            |        |
>>> ----------------------------------------------------------------------------------------------------------
>>>   NET "mad_corr_beam_x64_adc/mad_corr_beam_ | N/A         |
>>> N/A|         N/A|     N/A|         N/A
>>>   x64_adc/x64_adc_infrastructure_inst/adc_c |             |
>>> |            |        |
>>>   lk_ibufds" PERIOD = 4.1667 ns HIGH 50%    |             |
>>> |            |        |
>>> ----------------------------------------------------------------------------------------------------------
>>>
>>>
>>> Derived Constraint Report
>>> Derived Constraints for
>>> mad_corr_beam_x64_adc/mad_corr_beam_x64_adc/x64_adc_infrastructure_inst/adc_clk_ibufds
>>> +-------------------------------+-------------+-------------+-------------+-------------+-------------+-------------+---
>>> ----------+
>>> |                               |   Period    |       Actual Period
>>>    |      Timing Errors        |      Paths
>>> Analyzed       |
>>> |           Constraint          | Requirement
>>> |-------------+-------------|-------------+-------------|-------------+-------------|
>>> |                               |             |   Direct    |
>>> Derivative  |   Direct    | Derivative  |   Direct    |
>>> Derivative  |
>>> +-------------------------------+-------------+-------------+-------------+-------------+-------------+-------------+---
>>> ----------+
>>> |mad_corr_beam_x64_adc/mad_corr_|      4.167ns|      3.600ns|
>>> 6.460ns|            0|         7004|            0|
>>>   1035514|
>>> |beam_x64_adc/x64_adc_infrastruc|             |             |
>>>    |             |             |             |
>>>          |
>>> |ture_inst/adc_clk_ibufds       |             |             |
>>>    |             |             |             |
>>>          |
>>> | mad_corr_beam_x64_adc/mad_corr|      4.167ns|      2.221ns|
>>> N/A|            0|            0|         4528|
>>>         0|
>>> | _beam_x64_adc/x64_adc_infrastr|             |             |
>>>    |             |             |             |
>>>          |
>>> | ucture_inst/adc_clk_dcm       |             |             |
>>>    |             |             |             |
>>>          |
>>> | mad_corr_beam_x64_adc/fab_clk1|      6.250ns|      4.000ns|
>>> 9.690ns|            0|         7004|         1375|
>>>   1029611|
>>> |  mad_corr_beam_x64_adc_fab_pha|      6.250ns|      9.690ns|
>>> N/A|         7004|            0|      1029611|
>>>         0|
>>> |  se_gen/mad_corr_beam_x64_adc_|             |             |
>>>    |             |             |             |
>>>          |
>>> |  fab_phase_gen/CLK0_BUF       |             |             |
>>>    |             |             |             |
>>>          |
>>> +-------------------------------+-------------+-------------+-------------+-------------+-------------+-------------+---
>>> ----------+
>>>
>>> 3 constraints not met.
>>> INFO:Timing:2761 - N/A entries in the Constraints list may indicate that
>>> the
>>>    constraint does not cover any paths or that it has no requested value.
>>>
>>>
>>>
>>> Mapping completed.
>>> See MAP report file "system_map.mrp" for details.
>>> Problem encountered during the packing phase.
>>>
>>> Design Summary
>>> --------------
>>> Number of errors   :   1
>>> Number of warnings :2201
>>> ERROR:Xflow - Program map returned error code 2. Aborting flow
>>> execution...
>>> gmake: *** [__xps/system_routed] Error 1
>>>
>>> --
>>> Andrea Mattana
>>>
>>> I.N.A.F. - Istituto di Radioastronomia
>>> Radiotelescopi di Medicina
>>> Via Fiorentina, 3513 - 40059 Medicina (Bo)
>>> Tel. 051/6965834      Fax. 051/6965810
>>>
>>
>>
>
>
>
> --
> Andrea Mattana
>
> I.N.A.F. - Istituto di Radioastronomia
> Radiotelescopi di Medicina
> Via Fiorentina, 3513 - 40059 Medicina (Bo)
> Tel. 051/6965834      Fax. 051/6965810
>

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