michaelh/zephyr
1
0
Fork 0
Code Releases Activity

boards: nxp: imx943_evk: add J-Link runner support

Browse source 
J-Link runner can be used to download and boot Zephyr, and also used for
debugging.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
This commit is contained in:
Jiafei Pan 2025-05-08 16:47:36 +08:00 • committed by Anas Nashif
commit ac41bf373b
2 changed files with 66 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

10
boards/nxp/imx943_evk/board.cmake Normal file
View file

@ -0,0 +1,10 @@
#
# Copyright 2025 NXP
#
# SPDX-License-Identifier: Apache-2.0
if(CONFIG_SOC_MIMX94398_A55)
board_runner_args(jlink "--device=MIMX94398_A55" "--no-reset" "--flash-sram")
include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
endif()

58
boards/nxp/imx943_evk/doc/index.rst
View file

@ -64,8 +64,62 @@ Programming and Debugging (A55)
.. zephyr:board-supported-runners::
Boot Zephyr by Using U-Boot Command
===================================
There are multiple methods to program and debug Zephyr on the A55 core:
Option 1. Boot Zephyr by Using JLink Runner
===========================================
Dependency
----------
Need to disable all watchdog in U-Boot, otherwise, watchdog will reset the board
after Zephyr start up from the same A55 Core.
Setup
-----
The default runner for the board is JLink, connect the EVK board's JTAG connector to
the host computer using a J-Link debugger, power up the board and stop the board at
U-Boot command line, execute the following U-boot command to disable D-Cache:
.. code-block:: console
dcache off
then use "west flash" or "west debug" command to load the zephyr.bin
image from the host computer and start the Zephyr application on A55 core0.
Flash and Run
-------------
Here is an example for the :zephyr:code-sample:`hello_world` application.
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:host-os: unix
:board: imx943_evk/mimx94398/a55
:goals: flash
Then the following log could be found on UART1 console:
.. code-block:: console
*** Booting Zephyr OS build v4.1.0-3650-gdb71736adb68 ***
Hello World! imx943_evk/mimx94398/a55
Debug
-----
Here is an example for the :zephyr:code-sample:`hello_world` application.
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:host-os: unix
:board: imx943_evk/mimx94398/a55
:goals: debug
Option 2. Boot Zephyr by Using U-Boot Command
=============================================
U-Boot "go" command can be used to start Zephyr on A55 Core0.