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kanthi's avatar
kanthi
Icon for New Contributor rankNew Contributor
6 years ago

Fitter routing can't fit into device when we look the resource utilization is less than 60%. we are using stratix V device. how to fix this.

Error (11802): Can't fit design in device. Modify your design to reduce resources, or choose a larger device. The Altera Knowledge Database contains many articles with specific details on how to reso...
KennyT_altera's avatar
KennyT_altera
Icon for Super Contributor rankSuper Contributor
6 years ago

Got it, -2.7 is very huge slack even if you want to change a different setting options to close the timing for 1000path.

And it will be quite common that you will hit error message of no route because you put the fitting engine to more load.

What I would suggest is look into your design failure in the timing analyzer. Start analyze those failing path before do any setting changes. Sometimes, some of the path would be repeating failure for for a bus that can be solve easily, by pipeliping and etc.

kanthi's avatar
kanthi
Icon for New Contributor rankNew Contributor
6 years ago
Hi KTan, I need you great help to fix the negative slack, In our design we are using BRAM. the MM_inter connectivity taking lot of space. and avalon streaming too. can we directly access BRAM without MM_interconnection? if so please advice how to do it. The Qsys automatically insert avalon streaming. (adapter).can we remove manually and connect directly(without avalon streaming) in this case we will get some routing area to the fitter. please advice thanks sivakumar