AR #33500 - 11.1 ISE - I receive a PAR warning regarding the -t switch even though I did not set a Starting Placer Cost Table
11.1 ISE - I receive a PAR warning regarding the -t switch even though I did not set a Starting Placer Cost Table
| AR# | 33500 |
| Topic | SW-Project Navigator |
| Last Modified | 2009-09-14 00:00:00.0 |
| Status | Active |
Description
Keywords: MAP, PAR, cost table, Project Navigator
When implementing a design in ISE 11.1, I noticed the PAR Warning below. However, I did not set the Placer Cost Table and do not see an option to change in the PAR properties.
WARNING:Par:465 - The PAR option, "-t" (Starting Placer Cost Table), will be disabled in the next software release when used in combination with MAP -timing(Perform Timing-Driven Packing and Placement) or when run with V5 or newer architectures. To explore cost tables, please use the MAP option, "-t" (Starting Placer Cost Table), instead.
Solution
In ISE 11, PAR cost table is not a visible property in Project Navigator; thus, the user cannot explicitly set it. However, in order to ensure that the MAP and PAR cost tables match, Project Navigator is explicitly passing the par -t, with the same value that the user had set in MAP. If we do not do this, and the user had chosen a MAP cost table other than 1, PAR will post a warning indicating that the MAP and PAR cost tables do not match (because PAR uses a -1 as default when nothing is passed explicitly), and will let the user know that it will use the MAP -t value instead of the [default] PAR -1 value.In ISE 11.2, this deprecation message has been changed to an Informational message.