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Andrzej Głąbek 10740d63a5 samples: code_relocation_nocopy: Update configuration for nRF54H20 DK

It is no longer needed to specify the read command parameters in dts,
as the flash driver is capable of obtaining those from SFDP structures,
so the redundant properties are removed.

After commit 612fd940fa got merged, both
the EXMIF and flash nodes in dts are not enabled by default so this
needs to be done in the overlay.

Although nrfutil is still not capable of programming the external
flash on nRF54H20 DK, thus `west flash` will not work in this case,
`nrf54h20dk/nrf54h20/cpuapp` is added as an allowed platform so that
the sample is at least built in CI for it.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>

2025-09-10 13:02:01 +02:00

boards

samples: code_relocation_nocopy: Update configuration for nRF54H20 DK

2025-09-10 13:02:01 +02:00

src

…

CMakeLists.txt

…

linker_arm_nocopy.ld

drivers: flash: Support XIP for MAX32 SPIXF flash

2025-07-19 10:08:46 +02:00

prj.conf

…

README.rst

…

sample.yaml

samples: code_relocation_nocopy: Update configuration for nRF54H20 DK

2025-09-10 13:02:01 +02:00

README.rst

.. zephyr:code-sample:: code_relocation_nocopy
   :name: Code relocation nocopy

   Relocate code, data, or bss sections using a custom linker script.

Overview
********
A simple example that demonstrates how relocation of code, data or bss sections
using a custom linker script.

Differently from the code relocation sample, this sample is relocating the
content of the ext_code.c file to a different FLASH section and the code is XIP
directly from there without the need to copy / relocate the code. All other code
(e.g. main(), Zephyr kernel) stays in the internal flash.

nRF5340 DK platform instructions
********************************

The nRF5340 DK has a 64 Mb external flash memory supporting Quad SPI. It is
mapped to 0x10000000.

To build and flash the application (including the external memory part):

.. zephyr-app-commands::
   :zephyr-app: samples/application_development/code_relocation_nocopy
   :board: nrf5340dk/nrf5340/cpuapp
   :goals: build flash
   :compact:

STM32F769I-Discovery platform instructions
******************************************

The stm32f769i_disco has 64MB of external flash attached via QSPI. It is mapped
to 0x90000000.

.. zephyr-app-commands::
   :zephyr-app: samples/application_development/code_relocation_nocopy
   :board: stm32f769i_disco
   :goals: build flash
   :compact:

STM32 b_u585i_iot02a Discovery kit instructions
***********************************************

The b_u585i_iot02a has 64MB of external flash attached via OSPI. It is mapped
to 0x70000000.

.. zephyr-app-commands::
   :zephyr-app: samples/application_development/code_relocation_nocopy
   :board: b_u585i_iot02a
   :goals: build flash
   :compact:

Execution output
****************

.. code-block:: console

  *** Booting Zephyr OS build v3.0.0-rc3-25-g0df32cec1ff2  ***
  Address of main function 0x4f9
  Address of function_in_ext_flash 0x10000001
  Address of var_ext_sram_data 0x200000a0 (10)
  Address of function_in_sram 0x20000001
  Address of var_sram_data 0x200000a4 (10)
  Hello World! nrf5340dk/nrf5340/cpuapp