Hi Eugene,
SWO can be used to trace M33 core on MCUXpresso IDE v11.0.1.
With the dual-core running mode, they need to communicate with each other. The LPC55xx/LPC55Sxx provides a simple means called Inter-CPU Mailbox mechanism which has the following features:
• Provides a means Inter-Processor Communication, allowing multiple CPUs to share resources and communicate with each other in a simple manner.
• Each CPU can cause up to thirty-two user defined interrupts to its partner.
• Each CPU can claim a shared resource if it is available.
• Provides a mutual exclusion configuration for the communication handshake.
we have mailbox usage demo under SDK:
SDK_2.6.x_LPCXpresso55S69\boards\lpcxpresso55s69\driver_examples\mailbox
and also multicore demo under
boards\lpcxpresso55s69\multicore_examples
I suggest you read this document "AN12335 LPC55xx/LPC55Sxx Dual Core Communication" before you implement your dual core project:
https://www.nxp.com/docs/en/application-note/AN12335.pdf
Have a great day,
Jun Zhang
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