How to generate Routing Constraints File (.rcf) in Quartus Prime Standard Edition Software? - How to generate Routing Constraints File (.rcf) in Quartus Prime Standard Edition Software? Description To generate the Routing Constraints File (.rcf) in Quartus® Prime Standard Edition software , users will need to enter the following command in Nios II Command Shell: quartus_cdb <project name> --back_annotate = routing. Custom Fields values: ['novalue'] Troubleshooting FB: 505703; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro', 'FPGA Dev Tools Quartus® Prime Software Standard'] novalue 16.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']