how to get source file (.sof) of a FPGA cyclone IV EP4CE15F17I7N?

Hi @jalon5​ ,

Are you looking for steps to extract source file from flash connected to FPGA? If so

Yes, you can use the Examine feature in the Quartus® II Programmer to read back the .pof not sof file. You can then save this file and use it to program other EPCS devices.

To do so,

We have to know how board is designed( How fpga connected to it's flash chip jtag/Active serial)?

• In jtag mode use appropriate flash loader ip.
  • In Active Serial mode connect to appropriate header to use Examine feature.

OR

Are you looking for steps to program .sof file to fpga in jtag chain?

• Use auto detect feature in the Quartus® II Programmer and select device from chain and right click and load .sof and program.

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

Regards

Anand