Mapping external program memory , possible ?

[cocoa]

Is there a way to map external memory (SPI connected) to force the app to start execution from there ?

If not feasable , there is a way to transfer the execution from internal flash to an external one and switching off the internal memory (from supply power) not used by softdevice?

Thank you.

[Ole Morten]

You can't directly run code from an external flash; you'll have to copy the code from the external flash either into the internal flash or to internal RAM, and run it from there.

There is no way to turn off the internal flash.