boards: nucleo_wb55rg: Enable flash and debug with pyocd

stm32wb is not yet supported on openocd.
But support on pyocd can be enabled thanks to "pack" feature.
Configure board runner with pyocd and provide guidelines
to configure pyocd.


Signed-off-by: Erwan Gouriou <[email protected]>

Author: erwango

boards/arm/nucleo_wb55rg/board.cmake

@@ -1 +1,4 @@
-include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
+# SPDX-License-Identifier: Apache-2.0
+board_runner_args(pyocd "--target=stm32wb55rgvx")
+
+include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)

boards/arm/nucleo_wb55rg/doc/nucleowb55rg.rst

@@ -214,9 +214,13 @@ Flashing
 ========
 
 Nucleo WB55RG board includes an ST-LINK/V2-1 embedded debug tool
-interface.  This interface is not yet supported by the openocd version
-included in the Zephyr SDK. You can flash your application with drag and drop
-in the drive mounted when plugging your nucleo board to your PC.
+interface.  This interface is not yet supported by the openocd version.
+Instead, support can be enabled on pyocd by adding "pack" support with
+the following pyocd command:
+
+.. code-block:: console
+
+   $ pyocd pack --install stm32wb55rg
 
 
 Flashing an application to Nucleo WB55RG
@@ -237,7 +241,7 @@ Then build and flash the application.
 .. zephyr-app-commands::
    :zephyr-app: samples/hello_world
    :board: nucleo_wb55rg
-   :goals: build
+   :goals: build flash
 
 You should see the following message on the console:
 
@@ -248,18 +252,11 @@ You should see the following message on the console:
 Debugging
 =========
 
-While STM32WB55RG is not yet supported you can debug an application using pyocd.
-Here is an example for the :ref:`hello_world` application.
-Start pyocd gdbserver on your machine:
-
-.. code-block:: console
-
-   $ pyocd gdbserver
-
-Then launch debug on your board:
+You can debug an application in the usual way.  Here is an example for the
+:ref:`blinky-sample` application.
 
 .. zephyr-app-commands::
-   :zephyr-app: samples/hello_world
+   :zephyr-app: samples/basic/blinky
    :board: nucleo_wb55rg
    :maybe-skip-config:
    :goals: debug