Hi bob belmont,
Thank you for your interest in NXP Semiconductor products and
for the opportunity to serve you.
I'd highly recommend you to use the MCUXpresso Config Tool to build the clock, the tool provides a graphical navigator for the user to configure the clock.
You can learn more information about this tool via the following link:
https://www.nxp.com/support/developer-resources/software-development-tools/mcuxpresso-software-and-t...
Have a great day,
TIC
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