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MCXN94x power manager training lab

The Power Manager example uses runtime menus to evaluate the power modes and power management features of the MCX Nx4x. This example also uses the Power Manager component of MCUXpresso SDK, which provides a common framework of APIs for power management. For more details how to use this example and measure current, refer to the lab guide "MCXNx4x Power Management Lab.pdf".

In this lab, you will learn:

about the Power Management features of the MCX Nx4x MCU
how to measure current on the FRDM-MCXN947 board
how to measure current with MCU-Link Pro and MCUXpresso IDE
about the Power Management component in the MCUXpresso SDK

Boards: FRDM-MCXN947, MCX-N9XX-EVK

Categories: Low Power

Peripherals: CLOCKS

1. Software

2. Hardware

FRDM-MCXN947 board with USB Type-C cable
or MCX-N9XX-EVK board with micro USB cable
Personal Computer

3. Setup

The steps below detail how to import the example application into the 3 IDE options:

Clone the repo or extract the project archive. In this example, the repo is cloned to C:\power_manager

The project defaults to the FRDM-MCXN947 board. To build for a different board, change the BOARD_NAME macro in board.h.

3.1 Importing into MCUXpresso IDE

In the IDE's Quickstart panel, click Import project(s) from filesystem
Browse to the Root Directory, at \boards\mcxn9xxevk\demo_apps\power_manager\cm33_core0\mcux
Import the power_manager project, and uncheck the box Copy projects into workspace. Then click Finish.
The power_manager project is now included in the Project Explorer view, and is ready to build.

3.2 Importing into VS Code

Using VS Code requires the MCUXpresso extension. For details using this extension, see this wiki. 2) In the MCUXpresso extension view, in the Quickstart Panel, click Import Repository. 3) Choose the Local repo option, and import the local folder used in Setup. This MCUXpresso SDK Standalone repo will now be listed in the Installed Repositories view: 4) In the Quickstart Panel, click Import Project. 5) Click the Folder button, and browse to the application directory \boards\mcxn9xxevk\demo_apps\power_manager\cm33_core0. Choose the repository imported in Setup. Choose the toolchain installed for VS Code. The project named cm33_core0 will now be listed in the Projects view, and is ready to build.

3.3 Importing into IAR

Use the menu File->Open Workspace, and open the file \boards\mcxn9xxevk\demo_apps\power_manager\cm33_core0\iar\power_manager.eww

3.4 Connect the board

On the board, connect the USB cable between the PC host and the MCU-Link USB port on the board

On the FRDM-MCXN947 board, connect to USB J17
On the MCX-N9XX-EVK board, connect to USB J5

3.5 Connect a serial terminal

Open a serial terminal with the following settings:

115200 baud rate
8 data bits
No parity
One stop bit
No flow control

4. Results

Refer to the lab guide "MCXNx4x Power Management Lab.pdf" for detailed steps using the demo application.

The log below shows the output of the power manager example in the terminal window:

Sticky RESET sources:
Warm,   PIN,
#######    MCX Nx4x Power Manager component demo    #######

----------------------- Normal Boot -----------------------

Main Menu, press a key below:

        p: Power Modes Menu
        a: Analog Peripherals Menu
        c: Clocks Menu
        v: Voltage Menu
        s: System SRAM Menu
        e: Enter Selected Mode

5. Support

community.nxp.com

Project Metadata

Questions regarding the content/correctness of this example can be entered as Issues within this GitHub repository.

Warning: For more general technical questions regarding NXP Microcontrollers and the difference in expected funcionality, enter your questions on the NXP Community Forum