Hi there folks.
I'm an amateur project/ maker involved with personal microcontroller projects.
It's way too sad that NXP allows these links (and several others about similar Reference Designs) to get broken or not updated.
For any other soul interested, I've found these (still as of December 2023) alive Wayback Machine old tracks:
(you're welcome hehe).
Let's hope several other friends get commited to preserve such pieces of firmware information for the benefit of those who won't obligue to buying the "very last thing" in uC area from NXP or whatever.
Best regards from Madrid,
Mosagepa/ PURPOSEFUL DESIGNS, INC.