I am trying to power my S32K144EVB-Q100 using a 5V power bank through the micro USB port. I do not want to use the external power supply plug on-board.
The board works fine when plugged to PC using the microUSB port. However, when I try to use a 5V power bank instead, the board doesn't power on at all.
I understand that the microUSB is input to the OpenSDA chip and the chip transfers this power to the rest of the board.
Does the OpenSDA need to detect data activity (which is not provided by the power bank) as well as power in order to work? Is there a way to bypass that?