NXP MCU Driver

This repository contains a trimmed-down version of NXP's MCUXpresso SDK peripheral drivers for use with MicroPython.

Overview

This repository follows the structure of the official NXP MCUX SDK but includes only the driver files needed for supported target chips, reducing the size from approximately 1.6GB to under 100MB.

The repository is designed to be included as a Git submodule in projects like MicroPython that target i.MX RT and other NXP MCU families.

Updating to Newer SDK Versions

The update_sdk.py script automates updating driver files from the official NXP MCUX SDK releases:

# Update to the latest SDK release
./update_sdk.py

# Update to a specific release tag
./update_sdk.py --release MCUX_2.16.0

The script downloads the specified SDK release, updates existing target chip drivers, and commits the changes to a new branch.

Adding Support for New Chips

To add a new target chip:

1. Create an empty folder with the chip name in sdk/devices/
2. Run ./update_sdk.py to populate it with drivers from the latest SDK

The automation tool will detect the new target and include it in future updates.

Current SDK Version

The current SDK version is stored in sdk/version.txt.

History

This repository was originally maintained at hathach/nxp_driver as part of the TinyUSB project. When TinyUSB migrated to using the official NXP SDK directly, this trimmed version was forked to the MicroPython organization to continue serving projects requiring a smaller dependency footprint.