Today,I use RAppID BL Tool download the program into the S32K144,I connect the TXD to PTA2，RXD to PTA3.
After use S32DS flash the SK144_Bootloader.rbf
then I click the Debug
After I power off the mcu.
Then I open RAppID BL Tool download the program.
After I click Start Boot Loa,the window is blank.