Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Not able to complie NCO entity

Hi there, I have used NCO in my project. When i compile i get an error as Error (12006): Node instance "inst18" instantiates undefined entity "NCO13" Can anyone help me to resolve t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

There are inconsistencies in the info you've posted with references to 'NCO13' in the error but references to 'NCOex' and 'NCO2' in the block diagram and VHDL respectively. Please make sure you are consistent.

However, fundamentally Quartus doesn't know where to find the design entity - what 'NCO' is. How did you create NCO - via the IP Catalogue (or MegaWizard)? Are the source files for the IP included in your project? As indicated when you generate the IP 'you must manually add the .qip and .sip files after generating the ip core.' Or you can add the IP's .qsys file. So, check under 'Project' -> 'Add/Remove Files in Project...' that there are some files included for your IP. If not, add them.

Cheers,

Alex