USB and UART at the same time? - TinyRTK shuts down


is it possible to connect the UART(TELEM Port: because i have no screw driver to open it, so i crossed TX/RX, this works) of the TinyRTK to a Pixhawk while USB is also connected? For me the LED shuts down with this constellation.

The reason i want this: i want to send the correction data via a NTRIP client from a pc to the TinyRTK via USB. It is a NON-UAV application :slight_smile:

best regards

my fault: the pixhawk needs to be power directly with second usb cable or power module.

but the px4 firmware is reconfiguring the ublox module so it will not use usb information. am i correct?