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.

Did see the failure in the platform designer interconnect? If yes, there are 3 ways to solve it

1) in qsys -> press system -> show system with interconnect -> memory mapped interconnect -> manually add register there

2) in your qsys, add pipeline register module

3) go to interconnect requirement-> limit interconnect requirement -> increase it

Qsys automatic add adapter when there are mismatch btw the avalon. You cannot simply remove those adapter as it will cause your function to be broken. Thanks