Matter MW320 All Clusters Example Application

The example is based on Matter and the NXP MW320 SDK to demonstrates device commissioning and cluster control over a low-power, WiFi 802.11n network.

• Matter MW320 All Clusters Example Application
• Introduction
• Building
• Flashing
• Testing the example

Introduction

The example targets the NXP MW320 WiFi Micro controller Soc development kit.

Building

Building the example application is quite straightforward. It can be done via following commands:

$ git submodule update --init
$ source third_party/connectedhomeip/scripts/activate.sh
$ gn gen out/debug
$ ninja -v -C out/debug

Example application binary file “chip-mw320-all-clusters-app.bin” will be generated under directory “out/debug”.

Note:

1. “git submodule update --init” only needs to be issued for the first time in order to download MW320 SDK for Matter.
2. “source third_party/connectedhomeip/scripts/activate.sh” can be omitted if your environment is already setup without issues.

Tinycrypt ECC operations:

Note: This solution is temporary.

In order to use the tinycrypt ecc operations, use the following build arguments:

$ gn gen out/debug --args='treat_warnings_as_errors=false mbedtls_repo="//third_party/connectedhomeip/third_party/nxp/libs/mbedtls" mbedtls_use_tinycrypt=true'

Flashing

Connect MW320 to Ubuntu USB port and open Linux text-based serial port communications program at second USB interface (/dev/ttyUSB1):

$ TERM=linux minicom -D /dev/ttyUSB1 -b 115200

Prepare MW320 download firmware image:

$ ln -sf third_party/connectedhomeip/third_party/nxp/mw320_sdk/repo mw320_sdk
$ mw320_sdk/tools/mw_img_conv/bin/mw_img_conv mcufw out/debug/chip-mw320-all-clusters-app.bin out/debug/all-cluster-mw320.mcufw.bin 0x1F010000
$ cp out/debug/all-cluster-mw320.mcufw.bin mw320_sdk/mw320_matter_flash/Matter/.

Install OpenOCD (Open On-Chip Debugger):

$ sudo apt-get install openocd

Flashing firmware image to MW320:

$ cd mw320_sdk/mw320_matter_flash
$ sudo python2 flashprog.py -l Matter/layout-4m.txt --boot2 Matter/boot2.bin --wififw Matter/mw32x_uapsta_W14.88.36.p172.bin --mcufw Matter/all-cluster-mw320.mcufw.bin -r

After MW320 is reset, console will allow you to enter commands: