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Report Files

The synthesis and implementation software produce a number of report files which contain useful information about the design. These can be located by clicking on the Reports tab in the Project Manager, Figure 47. It is a good idea to look at these files. In addition to warnings and error messages (useful in debugging), they contain information about device usage, timing, efficiency, etc.

  

Figure 47: Reports page.

In particular, click on the Implementation Report Files icon, to get the collection of reports shown in Figure 48.

  

Figure 48: Implementation reports.

You can check to see if your pins have been assigned correctly by looking at the Pad Report. Here is an extract of the pad report showing the pins you should have assigned:

Pinout by Pin Name:
+------------------------------------------------+-----------+--------------+
|                    Pin Name                    | Direction |  Pin Number  |
+------------------------------------------------+-----------+--------------+
| A                                              |  INPUT    | P19          |
| B                                              |  INPUT    | P20          |
| C                                              |  INPUT    | P23          |
| X                                              |  OUTPUT   | P61          |
+------------------------------------------------+-----------+--------------+

The Place & Route Report tells you, amoung other things, data about device usage:

Resolved that IOB <A> must be placed at site P19.
Resolved that IOB <B> must be placed at site P20.
Resolved that IOB <C> must be placed at site P23.
Resolved that IOB <X> must be placed at site P61.


Device utilization summary:

   Number of External IOBs             4 out of 80      6%
      Flops:                           0
      Latches:                         0

   Number of CLBs                      1 out of 100     1%
      Total CLB Flops:                 0 out of 200     0%
      4 input LUTs:                    1 out of 200     0%
      3 input LUTs:                    0 out of 100     0%

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