Access FPGA component from NIOS without QSYS ?

Hi ranran,

Is it possible to access some FPGA component without importing the component IP into qsys ?

Yes, It's possible to access FPGA component without importing the component in qsys.

example: we can control LEDs & Switches using simple HDL without component or Qsys.

Meaning we can design our own controller(IP) to access FPGA component.

Does it mean it does not have any base address in system.h ?

Yes, If custom component/controller does not required software control/avalone interface.

No, If custom component/controller required avalone interface which should be interfaced with Nios II, So that we can controller the component using software .

If it is possible (without qsys), than what is actually the added benefit of using this component in qsys ?

In the above example LED & Switches are controlled using HDL code. Handshaking and Communication between components are not necessary.

Imagine a design with Handshaking and Communication between many components which can be controlled easily using software with with component in qsys

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Regards

Anand