| .. _lpcxpresso54114_m0: |
| |
| NXP LPCXPRESSO54114 (M0 Core) |
| ############################# |
| |
| Overview |
| ******** |
| |
| See :ref:`lpcxpresso54114` for a general overview of the LPCXpresso54114 board. |
| The Cortex-M0+ is a secondary core on the board's SoC. |
| |
| Programming and Debugging |
| ************************* |
| |
| The LPCXpresso54114 includes the LPC-Link2 serial and debug adapter built into |
| the board to provide debugging, flash programming, and serial communication |
| over USB. LPC-Link2 can be configured with Segger J-Link or CMSIS-DAP firmware |
| variants to support corresponding debug tools. Currently only the Segger J-Link |
| tools are supported for this board in Zephyr, therefore you should use the |
| Segger J-Link firmware variant. |
| |
| Before you start using Zephyr on the LPCXpresso54114, download and run |
| `LPCScrypt`_ to update the LPC-Link2 firmware to the latest version, currently |
| ``Firmware_JLink_LPC-Link2_20160923.bin``. Serial communication problems, such |
| as dropping characters, have been observed with older versions of the firmware. |
| |
| The code for the secondary core is linked into the primary core binary file. |
| Startup code copies the secondary core's code into an appropriate location |
| in RAM and starts its execution. |
| |
| Debugging |
| ========= |
| |
| You can debug an application in the usual way. Here is an example for the |
| :ref:`ipm-mcux-sample` application. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/subsys/ipc/ipm_mcux |
| :board: lpcxpresso54114_m4 |
| :goals: 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: |
| |
| .. code-block:: console |
| |
| ***** Booting Zephyr OS v1.11.0-764-g4e3007a ***** |
| Hello World from MASTER! arm |
| Received: 1 |
| ... |
| Received: 99 |
| |
| .. _LPCScrypt: https://www.nxp.com/support/developer-resources/software-development-tools/lpc-developer-resources-/lpc-microcontroller-utilities/lpcscrypt-v1.8.2:LPCSCRYPT |
