ALTERA DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN THIS PATCH WILL MEET YOUR REQUIREMENTS, OR THAT THE OPERATION OF THIS PATCH WILL BE UNINTERRUPTED OR ERROR-FREE. //**************************************************************** readme_patch_5.0_1.21.txt Readme file for Quartus II 5.0 Patch 1.21 Copyright (C) Altera Corporation 2005 All right reserved. Patch created on August 22 2005 Patch SPR#: 185851 SPRs fixed: 185195 //**************************************************************** Problem: Cyclone II PLL clock output is non-functional with certain phase shift settings. Solution: The problem is that the PLL VCO setting at 225 degress was wrong, and the output counter phase was ignored when setting the VCO phase. This patch fixes the problem, and the fix applies to all the Stratix II and Cyclone II devices. Caution - You must either have previously installed the Quartus II software version 5.0 SP1 or must install the Quartus II software version 5.0 SP1 before installing this patch. Otherwise, the patch will not be installed correctly and the Quartus II software will not run properly.