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Record #3733 Product Family: Software Product Line: CPLD Implementation Problem Title: M1.4 Hitop - Optimization disregards that control signals can have only 1 pterm. Problem Description: The M1.4 software collapses logic into control signals disregarding that a control signal can have only 1 product term. Additional internal nodes are created to implement the collapsed logic. Each internal node occupies a macrocell and for this design we run out of resources and can't fit the design to the targeted device. Solution 1: This problem is fixed in the latest M1.4 CPLD Patch available on the Xilinx Download Area: ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/cpld_sol9_m14.tar.Z ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/cpld_sun9_m14.tar.Z ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/cpld_hp9_m14.tar.Z ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/cpld_nt9_m14.zip These update files also include the changes from previous cpld updates. All zip files are created using WinZip. To obtain this utility, access WinZip's web site at http://www.winzip.comEnd of Record #3733
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