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2404326_en-US
2404326_en-US
This document describes the complete process required to enable and use GPIOs from a Zephyr Non-Secure application running on the FRDM-MCXN947. It covers the configuration of the AHB security attribution settings, the Zephyr and TF-M project configuration, and the use of the GPIO alias mirror registers to grant Non-Secure access to the desired GPIO ports. After completing these steps, GPIO peripherals can be controlled directly from the Zephyr application while maintaining the security isolation provided by TrustZone.
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