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17268 Discussions

Embedded Multiplier and Quartus II Upgrade

Altera_Forum
Honored Contributor II
‎12-08-2009 08:47 AM
1,418 Views

the quartus II 9.0 spII (i am using web edition) always shows there is only embedded multiplier 9 bit elements. May i know the reason since a lot of devices support more than 9 bit element( e.g. 18x18 bit element)? 

 

Besides, there is an ugrade version of quartus II 9.1. Is there any efficient way to upgrade the quartus II? FYI, normally i will uninstall the older version and install a newer version. 

 

thanks
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Altera_Forum
Honored Contributor II
‎12-08-2009 08:56 AM
543 Views

a newer version soes not install over an existing version like a service pack does. 

so you need to install the newer version, but it is up to you if you uninstall the previous version. 

it sometimes helps to keep to oleder versions installed f.e. if parts of your project are based on ip funtionality from an older version that might has been changed in the new version. 

FIR for example had paths releated to the installation. if you upgrade your quartus and uninstall the previous verion, the you had to upgrade your FIR parts too. 

 

18x18 multiplier are created with 9x9 multipliers if only 9x9 is available
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