I’m trying to drive a stepper with my Jetson TX2 Dev Board. The driver is DQ542MA and needs 5V signals.
So I have run my GPIOs through a logic level converter. Until there everything is fine. I have 0 and 5V on the high side when i enter 0 and 3.3V on the low side when checked unconnected.
However when I connect my signals to the driver the voltage drops to 1.4V when high (checked with multimeter) and this isn’t enough to run the dirver. The same configuration runs with an Arduino so stepper and driver are functioning well.
Logic Level Converter run with external supply just to be sure that I have enough current but the problem remains?.
Is there an internal resistance or something on the driver? How can I overcome this? And how is it possible to run it directly from an Arduino but not from Jetson TX2?