Hi Jing,
I am able to download MCUXpresso IDE and able to compile "Hello_World" demo application.
I followed "Getting Started with MCUXpresso SDK, Rev. 10, 06/2019", download from same link:
https://mcuxpresso.nxp.com/en/dashboard?uvid=196373&to_vault=true
As mentioned on Page 13, when I press "Resume" button, I can see "hello world." printed on MCUXpresso IDE Console, but I am not able to see same on serial port, in my case it is COM15 and shows as: "mbed Serial Port (COM15)" in windows "Device Manager".
Can you point what could be the issue?
Kind Regards
Vivek