* Not really Rust related, but has anybody here got an idea what's going on with my RS485 transceiver?
I've rechecked all pins and they should be fine. Power supply is nice, stable and of the proper 3v3 voltage.

But for some reason there's this ~200KHz block signal on everything. The A output is also at practically 0 volts.
In this image I'm writing 0xAA at 9600 baud with auto DE management.

(Also, I forgot a pullup that the datasheet says is needed. I doubt it's actually required if I look at the internal schematic, but I've added it nonetheless to see if that was the issue. Sadly no)