Answers Database
XPLA Professional: Version 3.31 ignores the pin assignments in a PAF file that was generated in the previous version.
Record #7645
Product Family: Software
Product Line: CoolRunner
Product Part: XPLA Fitter
Problem Title:
XPLA Professional: Version 3.31 ignores the pin assignments in a PAF file that was
generated in the previous version.
Problem Description:
Urgency: Hot
General Description: Why does the fitter in XPLA Pro V3.31 ignore the
pin assignments in the PAF file that was generated in the previous
version?
Solution 1:
XPLA Professional Version 3.31 has transitioned the CoolRunner
device part numbers from Philips part numbers to Xilinx part numbers.
This change will only affect designs that meet the following criteria:
1. The design was created with a version of XPLA Professional prior
to XPLA Professional 3.31.
2. The pin assignment file (.paf) is used for assigning pins to the design.
If these conditions are true, then the pin assignment file must be
modified before the design can correctly be fit to a chip with the
desired pin assignments. This is because the pin assignment file contains
a Philips part number at the beginning of the file. The fitter will view the
Philips part number and see that it doesn't match with the Xilinx part
number in the device selection comment. To correct the part number:
1. In XPLA Pro, open the Pin Editor. You will notice that the graphic
reflects the Xilinx part number for the device.
2. On the top menu bar, select Assignment | Save. This will re-write
your pin assignment file (.paf) with the new Xilinx part number.
You are now ready to compile and fit your design. Remember to set
Pin Pre-assignment to KEEP and Pin Assignment Source to .PAF in
the Properties window to instruct the fitter to keep the pin assignments
listed in the PAF file.
End of Record #7645 - Last Modified: 10/14/99 17:36 |
