Example Memfault Zephyr QEMU application

Based on https://github.com/zephyrproject-rtos/example-application , this provides a minimal reference for Memfault integration.

Note: this example can also target other boards and should work normally- for example nrf52840dk_nrf52840. It's primarily tested on the qemu_cortex_m3 board, which is also the default.

Usage

After setting up a zephyr development environment (https://docs.zephyrproject.org/latest/getting_started/index.html), you can run the following commands to test the application:

# initialize this project
❯ west init --local qemu-app
❯ west update

# build and run the target program
❯ west build qemu-app
❯ west build --target run

*** Booting Zephyr OS build zephyr-v3.2.0  ***
[00:00:00.000,000] <inf> mflt: GNU Build ID: 4ffb5879ed5923582035133086015bbf65504364
[00:00:00.000,000] <inf> main: 👋 Memfault Demo App! Board qemu_cortex_m3

[00:00:00.000,000] <inf> mflt: S/N: DEMOSERIAL
[00:00:00.000,000] <inf> mflt: SW type: zephyr-app
[00:00:00.000,000] <inf> mflt: SW version: 1.0.0+6c108c40f1
[00:00:00.000,000] <inf> mflt: HW version: qemu_cortex_m3

uart:~$