MCXW23-EVK
Overview
The MCXW23 EVK base board, combined with a MCXW23 Radio Daughter Module (RDM), is an evaluation environment supporting NXP’s MCXW23 wireless processor. The EVK supports IoT applications and is intended for prototyping, demos, software development and measurements (power consumption and RF). The MCXW23 EVK constitutes multiple debugging mechanisms, therefore aiding easier application development.
Hardware
MCXW23 Arm® Cortex®-M33 microcontroller running at up to 32 MHz
1 MB flash and 128 KB SRAM on-chip
40HVQFN package
On-board MCU-Link debugger with CMSIS-DAP
LED
Reset, ISP, wake, and user buttons for easy testing of software functionality
NXP FXLS8974CF accelerometer
NXP FXPQ3115BVT1 pressure sensor
TMP117 temperature sensor
Arduino Header, mikroBUS
For more information about the MCXW236 SoC and MCXW23-EVK board, see:
Supported Features
The mcxw23_evk board supports the hardware features listed below.
- on-chip / on-board
- Feature integrated in the SoC / present on the board.
- 2 / 2
-
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files. -
vnd,foo -
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.
Connections and IOs
The MCXW23 SoC has IOCON registers, which can be used to configure the functionality of a pin.
Name |
Function |
Usage |
|---|---|---|
PIO0_20 |
GPIO |
ISP SW2 |
PIO0_2 |
USART |
USART RX |
PIO0_3 |
USART |
USART TX |
PIO0_19 |
GPIO |
RED LED |
PIO0_18 |
GPIO |
USR SW4 |
PIO0_21 |
GPIO |
Wakeup SW3 |
PIO0_14 |
I2C |
I2C SCL |
PIO0_13 |
I2C |
I2C SDA |
PIO0_1 |
GPIO |
FXLS8974CF INT1 |
PIO0_1 |
GPIO |
TMP117 INT1 |
PIO0_1 |
GPIO |
FXPQ3115BVT1 INT1 |
System Clock
The MCXW23 SoC is configured to use FRO running at 32 MHz as a system clock source.
Serial Port
The MCXW23 SoC has 3 FLEXCOMM interfaces for serial communication. One is configured as USART for the console, one is configured for I2C, and the other one is not used.
Fetch Binary Blobs
To support Bluetooth, mcxw23_evk requires fetching controller lib blobs, which can be achieved by running the following command:
west blobs fetch hal_nxp
Programming and Debugging
The mcxw23_evk board supports the runners and associated west commands listed below.
| flash | debug |
|---|
Build and flash applications as usual (see Building an Application and Run an Application for more details).
Configuring a Debug Probe
A debug probe is used for both flashing and debugging the board. This board is configured by default to use the MCU-Link CMSIS-DAP Onboard Debug Probe.
Using LinkServer
Linkserver is the default runner for this board, and supports the factory
default MCU-Link firmware. Follow the instructions in
MCU-Link CMSIS-DAP Onboard Debug Probe to reprogram the default MCU-Link
firmware. This only needs to be done if the default onboard debug circuit
firmware was changed. To put the board in DFU mode to program the firmware,
short jumper J32.
Using J-Link
There are two options. The onboard debug circuit can be updated with Segger
J-Link firmware by following the instructions in
MCU-Link JLink Onboard Debug Probe.
To be able to program the firmware, you need to put the board in DFU mode
by shortening the jumper J32.
The second option is to attach a J-Link External Debug Probe to the
10-pin SWD connector (J11) of the board. Additionally, the jumper JP30 must
be shortened.
For both options use the -r jlink option with west to use the jlink runner.
west flash -r jlink
Configuring a Console
Connect a USB cable from your PC to J33, and use the serial terminal of your choice (minicom, putty, etc.) with the following settings:
Speed: 115200
Data: 8 bits
Parity: None
Stop bits: 1
Flashing
Here is an example for the Hello World application.
# From the root of the zephyr repository
west build -b mcxw23_evk samples/hello_world
west flash
Open a serial terminal, reset the board (press the RESET button), and you should see the following message in the terminal:
*** Booting Zephyr OS build v4.2.0-2105-g9da1d56da9e7 ***
Hello World! mcxw23_evk/mcxw236
Debugging
Here is an example for the Hello World application.
# From the root of the zephyr repository
west build -b mcxw23_evk samples/hello_world
west debug
Open a serial terminal, step through the application in your debugger, and you should see the following message in the terminal:
*** Booting Zephyr OS build v4.2.0-2105-g9da1d56da9e7 ***
Hello World! mcxw23_evk/mcxw236
Power Management
When Power Management is enabled CONFIG_PM, OSTIMER is used as
OS tick timer.
Limitation: Wakeup pin can’t be used as wakeup source in Standby mode.