Simple demo for the usage of platformio and renode

This simple demo shows how to use platformio and renode to develop a simple zephyr application.

The targets are the

• Freedom-K64F by NXP
• nucleo F410RB

4 environments are created:

• One for renode upload with the K64F
• One for renode debug with the K64F
• One for the real hardware upload and debug with the K64F
• One for renode upload with the nucleo_f410rb

K64F and renode

For the renode env, you need to create a simple k64f.resc script, as renode does not provide a script for this platform.

:name: K64F
:description: This script creates a machine and loads the K64F platform

:just to type less
using sysbus

:create machine and load platform
mach create "K64F"
machine LoadPlatformDescription @platforms/cpus/nxp-k6xf.repl

The file needs to be placed in the single-node scripts folder of your renode installation. On linux that is:

/opt/renode/scripts/single-node/

The application simply reads lines from an UART, and echo the lines back to the user with some additional info.

The example is inspired by this zephyr post.

For testing purposes, the app opens an analyzer for the uart, and creates a socket in the port 3456. From the host it is possible to access the uart by connecting to the port with:

$ telnet localhost 3456