Forum Discussion

Er7Cho1gU's avatar
Er7Cho1gU
Icon for New Contributor rankNew Contributor
3 years ago
Solved

The design unit was not found.

Hello: I will be very grateful if someone solve my problem. I was puzzled with it for a long time but I can't fine a proper way to solve it. Program: -------------------------------------...
  • Ash_R_Intel's avatar
    Ash_R_Intel
    3 years ago

    Hi,

    This error is encountered when subcomponents are not found during compilation or elaboration. You are mostly instantiating a PLL IP top level module and the inside modules are not visible to you. For the IP to compile you need to include the device libraries as well. The best way is to generate the simulation script while generating the IP and refer it to get info on all the files and libraries are required to simulate the IP.

    For example, to simulate a Cyclone V PLL IP in Modelsim, the script (msim_setup.tcl) compiles and use device related files as shown in the figure below:

Ash_R_Intel's avatar
Ash_R_Intel
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi,

This error is encountered when subcomponents are not found during compilation or elaboration. You are mostly instantiating a PLL IP top level module and the inside modules are not visible to you. For the IP to compile you need to include the device libraries as well. The best way is to generate the simulation script while generating the IP and refer it to get info on all the files and libraries are required to simulate the IP.

For example, to simulate a Cyclone V PLL IP in Modelsim, the script (msim_setup.tcl) compiles and use device related files as shown in the figure below: