Getting Started with FRDM-MCXC242

2.1 Install Your Toolchain

NXP offers a complimentary toolchain called MCUXpresso IDE. Please download MCUXpresso v11.8.1 or above.

Get MCUXpresso IDE

Get MCUXpresso for VS Code

Learn how to install VS Code for your host PC with the following tutorial.

Want to use a different toolchain?

If you need help choosing, explore the MCUXpresso Suite of Software and Tools.

The MCUXpresso SDK includes support for other tools such as IAR , KEIL  and command-line GCC .

2.2 Jump Start Your Design with the MCUXpresso SDK

The MCUXpresso SDK is complimentary and includes full source code under a permissive open-source license for all hardware abstraction and peripheral driver software. You may install the MCUXpresso SDK directly form the MCUXpresso SDK website at mcuxpresso.nxp.com. Click on the button below to open this board's SDK builder.

Get MCUXpresso SDK

2.3 MCUXpresso Config Tools

The MCUXpresso Config Tool is an integrated suite of configuration tools that guides users in creating new MCUXpresso SDK projects, and also provides pin and clock tools to generate initialization C code for custom board support, it is fully integrated as a part of MCUXpresso IDE and also as a separate tool if using a different IDE.

Click the Get MCUXpresso Config Tools below to get the Config Tools installer.

2.4 Programming and Provisioning Tools

NXP provides MCUXpresso Secure Provisioning (SEC) for trial run and mass production use. It supports secure programming and device provisioning on NXP's microcontrollers at the production stage. The MCUXpresso Secure Provisioning (SEC) Tool is a GUI-based application provided to simplify generation and provisioning of bootable executables on NXP MCU devices. The Secure Provisioning SDK (SPSDK) is an open-source development kit with its source code released on Github and PyPI. This command-line tool is useful when interfacing with a custom or partner programming tool.

SEC Installation

If one or more of the demo applications or driver examples sounds interesting, you're probably wanting to know how you can build and debug yourself. The Getting Started with MCUXpresso SDK guide provides easy, step-by-step instructions on how to configure, build, and debug demos for all toolchains supported by the SDK.

3.1 Build and Flash Application using MCUXpresso IDE

The following steps will guide you through the hello_world demo application using MCUXpresso IDE for the Cortex-M0+ application. The MCUXpresso IDE installation and the SDK for the MCXC-Series can be found at the section Get Software of this Getting Started guide.

1. Find the Quickstart Panel in the lower left-hand corner

2. Then click Import SDK example(s)

3. Click the FRDM MCX -Series board to select an example that can run on that board, and then click Next

4. Use the arrow button to expand the demo_apps category, and then click the checkbox next to hello_world to select that project. To use the UART for printing (instead of the default semihosting), select UART as the SDK Debug Console checkbox under the project options. Then, click Finish

5. Select the project and build it by either clicking the "build icon" in the shortcuts provided above or by clicking “Build” in the Quickstart Panel

6. The project should build without presenting any errors or warnings in the console

7. Connect the board to your computer with the micro-USB to J9 ‘MCU-LINK’ port

8. Download the application to your board by either clicking the "debug" icon above or clicking “Debug” in the Quickstart Panel

9. Select the MCU-Link CMSIS-DAP debug probe

10. Open up a serial terminal to be able to see the application’s output. Select the "Terminal" window and press the "new terminal" icon

11. Choose a "Serial Terminal" and then set the UART settings to 115200 baudrate, 8-bit data size, no parity and 1 stop bit. Press OK

12. Run the application by pressing the “run” icon. See the output printed on the terminal

4.1 Clone an Example Project from MCUXpresso IDE

The following steps will guide you through the manipulation of the general-purpose outputs. The example sets up a TPM to generate two PWM signals and change the brightness of an LED.

1. Find the Quickstart Panel in the lower left-hand corner and click Import SDK example(s)

2. Click the FRDM-MCXC242 board to select that you want to import an example that can run on that board, and then click Next

3. Use the arrow button to expand the driver_examples category, then expand the tpm examples, click the checkbox next to frdmmcxc242_tpm_pwm_twochannel to select it. To use the UART for printing (instead of the default semihosting), Select UART as the SDK Debug Console checkbox under the project options
Then, click Finish.
4. Click the “frdmmcxc242_tpm_pwm_twochannel” project in the Project Explorer View and build, compile and run the demo as described in the previous section

5. Choose a “Serial Terminal” and then set the UART settings to 115200 baudrate, 8-bit data size, no parity and 1 stop bit. Press OK. Enter any number between 0-9 to change LED brightness
6. Terminate the debug session

4.2 Clone an Example Project using MCUXpresso Config Tool for 3rd Party IDE

The following steps will guide you through the manipulation of the general-purpose outputs. The example sets up a TPM to generate a PWM signal and change a LED brightness.

1. Open the MCUXpresso Config Tool
2. In the wizard that comes up, select the “Create a new configuration based on an SDK example or hello word project” radio button and click on Next

3. On the next screen, select the location of the MCUXpresso SDK. The SDK package must be unzipped beforehand. Then select the IDE that is being used. Note that only IDEs that were selected in the online SDK builder when the SDK was built will be available and click on clone select example. Then select the project to clone. For this example, we want to use the tpm_pwm_twochannel project. You can filter for this by typing “tpm” in the filter box and then selecting the “tpm_pwm_twochannel” example project. You can then also specify where to clone the project and the name. Then click on Finish

4. After cloning go to the directory you selected and open the project for your IDE. Import, compile, and run the project as done in previous sections
5. Choose a “Serial Terminal” and then set the UART settings to 115200 baudrate, 8-bit data size, no parity and 1 stop bit. Press OK. Enter any number between 0-9 to change LED brightness
6. Terminate the debug session

4.3 Use MCUXpresso IDE Pins Tools

Note: Previously, you had to clone an SDK project like in the previous step.

1. Open the pins tool by selecting “ConfigTools” on the top right hand of the file explorer window and then select “Open Pins”

2. The pins tool should now display the pin configuration for the tpm project

4.4 Use the Pins Tools to Modify the LED Routed Pin

1. We’ll use MCUXpresso IDE for the rest of the instructions, but the same steps can be done in MCUXpresso Config tools for third-party IDEs. In the Pins view deselect “Show dedicated pins” and “Show no routed pins” checkboxes to see only the routed pins. Routed pins have a check in a green box next to the pin name. The functions selected for each routed pin are highlighted in green

2. In the current configuration, PTB18 and PTB19 are routed as the outputs of the TPM. Let’s add the pin configuration to enable the BLUE LED
3. Select “Show no routed pins” to see the other options. To enable the BLUE LED, search for BLUE or PTA13 and select TPM1:CH, 1 under the TPM column

4. Now, it’s time to implement these changes into the project by exporting the new updated pin_mux.c and pin_mux.h files that are generated by the Pins tool. Click Update Code in the menu bar

5. The screen that pops up will show the files that are changing and you can click “diff” to see the difference between the current file and the new file generated by the Pins tool. Click “OK” to overwrite the new files into your project

Note: The clocks and other files may also be tagged as being updated since the header has been changed.


6. Let’s add some additional code to the example. Open tpm_pwm_twochannel.c file and add the following macros for BLUE LED TPM instance and channel

7. Add initialize function for TPM

8. Add initalize structure and function for TPM1_CH1

9. In the main function, add the TPM1_CH1 control function inside the while loop

10. Build and download the project as done in the previous section
11. Run the application. Choose a “Serial Terminal” and then set the UART settings to 115200 baudrate, 8-bit data size, no parity and 1 stop bit. Press OK. Enter any number between 0-9 to change the LED brightness. you can see the RGB_LED is also changed the brightness and the color shoud be white, which means that all 3 BLUE/GREEN/RED LED is on
12. Terminate the debug session

Check out each of the following sections to learn about the ecosystem provided for flexible protyping and development. In the video below, we will introduce you to the FRDM platform, the full-featured EVK and the compatible shields for extended capabilities. In addition we will walk you through our Application Code Hub portal where we provide numerous application examples through NXP's GitHub.

5.1 FRDM Platform, Full feature EVK and Shields

For quick prototyping platforms, we offer both the low-cost FRDM platform and the full-featured EVK.

FRDM Development Boards come with standard form factor and headers, easy access to MCU I/Os, on-board MCU-Link debugger and a USB-C cable. Our full features evaluation kits include extended I/O and interface access, extendable with WiFi and additional MCU-Link features.There are also many compatible Click Board and/or Arduino shields. For those that are supported with an Open CMSIS Pack examples may be available on ACH, but if not many of them are easy to use via serial interface like I²C, SPI and UART, for which we provide drivers with examples in the MCUXpresso SDK.

5.2 Application Code Hub

The Application Code Hub further enhances our MCUXpresso Developer Experience by giving developers an interactive dashboard to quickly locate software. Visit the ACH  today to start exploring or discover additional details and benefits of the new interactive Application Code Hub.

Software accessible from Application Code Hub is located in NXP’s GitHub repository  so it can be easily accessed and cloned from that location directly.

5.3 Demo Walkthrough

The following demo walks us through importing a project from ACH using a system based on the FRDM platform with a motor control shield and a low-cost LCD. Although your evaluation board may differ from this system, the following steps can be replicated and used for all supported platforms.

Board Documents

• FRDM-MCXC242 Design Files
• FRDM-MCXC242 Schematics

Software

• Getting Started with MCUXpresso SDK - User Guide
• Secure Provisioning Tool - User Guide
• MCUXpresso SDK API Reference Manual
• MCUXpresso SDK Builder
• MCU-Link FW
• SPSDK Wiki

Forums

Connect with other engineers and get expert advice on designing with the FRDM-MCXC242 board using our community sites.

• General Support
• MCX Community