Hi Viet,
The PN5180 has its own firmware programmed out of factory, it can only be upgraded in a secure firmware
download mode, please refer to "12. Secure Firmware Update" in the data sheet for details. The firmware referred in the quickstart guide is the firmware for LPC1769 on that board, as PN5180 is just a NFC front end, so it needs to work with a MCU like LPC1769, which is supported by MCUXpresso IDE, and LPC-link 2 is the debug probe required by this IDE tool.
Hope that makes sense,
Have a great day,
Kan
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