I use LPCXpresso55S69 and IDE V11.
Using the "New Project ..." command how to place the slave code in flash?
IDE forces slave code placement in RAM.
The image of the slave code is placed in RAM but the primary code will boot the secondary core and place the image in flash.
If you check the .map file you can see something like this that says where is loaded the slave core image.
I hope this helps you.
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