I am working on S32K144 EVB and i use UART.I am getting issue with UART transmit.
UART transmit working only once when my receiver MCU reboots.
My receiver MCU working fine every time when i am sending data through USB to TTL converter.
Make sure the communication between S32K144EVB and PC is normal,then you can connect S32K144EVB to your receiver MCU.
when i use USB to TTL converter for PC and s32k144 communication it work fine.
One thing i noticed is that the voltage on TX pin of s32k144 is 5v when no communication is happen.And i think that is creating issue for me.