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RPMsg Service sample Application

Overview

RPMsg Service is an abstraction created over OpenAMP that makes initialization and endpoints creation process easier. This application demonstrates how to use RPMsg Service in Zephyr. It is designed to demonstrate how to integrate RPMsg Service with Zephyr both from a build perspective and code.

Building the application for nrf5340dk_nrf5340_cpuapp

# From the root of the zephyr repository
west build -b nrf5340dk_nrf5340_cpuapp samples/subsys/ipc/rpmsg_service
west debug

Building the application for mps2_an521

# From the root of the zephyr repository
west build -b mps2_an521 samples/subsys/ipc/rpmsg_service
west debug

Building the application for v2m_musca_b1

# From the root of the zephyr repository
west build -b v2m_musca_b1 samples/subsys/ipc/rpmsg_service
west debug

Open a serial terminal (minicom, putty, etc.) and connect the board with the following settings:

  • Speed: 115200

  • Data: 8 bits

  • Parity: None

  • Stop bits: 1

Reset the board and the following message will appear on the corresponding serial port, one is master another is remote:

**** Booting Zephyr OS build zephyr-v1.14.0-2064-g888fc98fddaa ****
Starting application thread!

RPMsg Service [master] demo started
Master core received a message: 1
Master core received a message: 3
Master core received a message: 5
...
Master core received a message: 99
RPMsg Service demo ended.
**** Booting Zephyr OS build zephyr-v1.14.0-2064-g888fc98fddaa ****
Starting application thread!

RPMsg Service [remote] demo started
Remote core received a message: 0
Remote core received a message: 2
Remote core received a message: 4
...
Remote core received a message: 98
RPMsg Service demo ended.