ArmClang: error: ARM Compiler does not support '-mcpu=cortex-m33'
LPC55 is ARM V8 cortex m33.
You need professional Keil version to compile it.
Hello haifeng jin,
Yes, as sean said, you need Professional license.
Do you still have question about this?
Starting with Keil MDK 5.31, a MDK Pro license will not be needed for Armv8-M (Cortex-M23, M33, and so on).
Other versions of MDK will work with these TrustZone processors.
Even MDK-Lite (the evaluation version) will work to 32K.
MDK 5.31 is expected to be released early July 2020.
I just updated my LPC55S69 lab: www.keil.com/appnotes/docs/apnt_322.asp
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