4028 fan connected to toolboard. Tachometer not working, 0 rpm.

[fan] pin: !toolboard:fan_part_cooling_pin cycle_time: 0.00004 #enable_pin: PB7 tachometer_pin: ^PA3 # Made up pin name, look up your boards pinout diagram to get the pin name for the pin you've chosen tachometer_poll_interval: 0.0005 # will support up to a 30.000 RPM fan with 2 pulses per rotation. I'm using EBB 42 1.2 Tried PA3 (RGB) and PB7 (I2C), using ^ hardware pullup and not, putting !toolboard in front.