Critical Issue
Description
For designs that target Stratix IV GT devices in downbonded packages, the Quartus II software version 10.0 incorrectly places PCI Express hard IP block at the bottom XCVR block, which does not have a hard IP block attached to it.Compilation of the design fails with a message similar to the following:
Error: Can’t assign I/O pad <“pad name”> to <pin
name> because this causes failure in the placement of the other
atoms in its associated channel.
Error: The transceiver block has no associated PCI Express
hard IP block.