Sample mailbox application


The NXP LPCXPRESSO54114 board has two core processors (Cortex-M4F and Cortex-M0+). This sample application uses a mailbox to send messages from one processor core to the other.


Building and Running

# From the root of the zephyr repository
west build -b lpcxpresso54114_m4 samples/subsys/ipc/ipm_mcux
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:

***** Booting Zephyr OS v1.11.0-764-g4e3007a *****
Hello World from MASTER! arm
Received: 1
Received: 99