Hi,
Please check the below links:
CMSIS support in LPCXpresso IDE
https://community.nxp.com/thread/388987
Remember:
"The use of LPCOpen is now recommend for most LPC MCUs, rather than the 'old-style' CMSIS-CORE library projects and examples. For more details please see the LPCXpresso IDE User Manual, and visit the LPCOpen webpages."
Have a great day,
Soledad
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