Yes I sent you instructions, you are almost at the end
“Start game again and get to calibration (this what asks you for centering joystick)
Open Voodoo control at first page. Press ‘+’ and add all buttons of your physical gamepad to list. Then assign them to “Gamepad buttons” from picker menu. Switch to second page and scroll down to “dpad”. Switch “Keypad” to 2axis. Confirm.
Now you can continue with calibration.”