Answers Database
M1.4 Hitop - Optimization disregards that control signals can have only 1 pterm.
Record #3733
Product Family: Software
Product Line: CPLD Implementation
Product Part: hitop
Product Version: 1.4
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_sol10_m14.tar.Z
ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/cpld_sun10_m14.tar.Z
ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/cpld_hp10_m14.tar.Z
ftp://ftp.xilinx.com/pub/swhelp/M1.4_alliance/cpld_nt10_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.com
End of Record #3733 - Last Modified: 08/26/98 16:58 |
