by following the online tutorial from Altera, My first FPGA Design tutorial, I added some adjustments to my Mars-EDA-s board The Quartus II that I am using is version 11.0 P11 Project Wizard: p19, adding symbol 13. from icons bar, click "logic gate" symbol 14. in Symbol window, click Project directory to expand it 15. select newly created simple_counter by clicking it's icon P22, speed setting As the FPGA in use is EP1C3T144C 8 N, using below part number description as an example, speed grade is 8 the crystal oscillator on board is 40 MHz p24 p27: clock division cycle : 2 >> actual settings 20MHz p41, before doing "start Analysis & Elaboration", make sure the settings is as below From menu bar, Assignments >> Settings >> Top-level entity: my_first_fpga_top Analysis & Elaboration ok: now you can proceed to Pins Planner The Node Name <> locations are as follows ...