Hi
I was developing an application on an nRF52840 DK, using nRF Connect SDK v2.4.1.
I now want to modify this project to run on a custom nRF52840 board.
To learn how to do this, I started with a new Nordic sample: peripheral uart, and I built this (successfully) for the nRF52840 DK.
Now, to create a build for a custom nRF52840 board, instead of the nRF52840 DK, I performed the following steps (adapting the steps described here).
Step 1
I created an 'arm' folder the local board directory under the working project
peripheral_uart\boards\arm
Step 2
I copied the nRF52840 DK board folder from:
ncs\v2.4.1\zephyr\boards\arm\nrf52840dk_nrf52840
to:
peripheral_uart\boards\arm\
and renamed the folder:
peripheral_uart\boards\arm\ customer1_nrf52840
Step 3
I renamed filenames in this new folder, from:
nrf52840dk_nrf52840.dts nrf52840dk_nrf52840.yaml nrf52840dk_nrf52840_defconfig nrf52840dk_nrf52840-pinctrl.dtsi
to:
customer1_nrf52840.dts customer1_nrf52840.yaml customer1_nrf52840_defconfig customer1_nrf52840-pinctrl.dtsi
Step 4
I renamed all the BOARD_NRF52840DK_NRF52840 to BOARD_CUSTOMER1_NRF52840
in files:
Kconfig Kconfig.defconfig Kconfig.board
And in Kconfig.defconfig, renamed Boolean:
default "nrf52840dk_nrf52840" default "customer1_nrf52840"
And in Kconfig.board, renamed Boolean:
bool "nRF52840 DK NRF52840" bool "customer1 NRF52840"
Step 5
In customer1_nrf52840.dts, I modified the dtsi include from:
#include "nrf52840dk_nrf52840-pinctrl.dtsi"
To:
#include "customer1_nrf52840-pinctrl.dtsi"
And the model/compatible, from:
model = "Nordic nRF52840 DK NRF52840"; compatible = "nordic,nrf52840-dk-nrf52840";
To:
model = "Nordic customer1 NRF52840"; compatible = "nordic,customer1-nrf52840";
Step 6
In customer1_nrf52840_defconfig, I modified the board config include from:
CONFIG_BOARD_NRF52840DK_NRF52840=y
To:
CONFIG_BOARD_CUSTOMER1_NRF52840=y
Step 7
In customer1_nrf52840.yaml, modified the identifier and name, from:
identifier: nrf52840dk_nrf52840 name: nRF52840-DK-NRF52840
to:
identifier: customer1_nrf52840 name: customer1-DK-NRF52840
Step 8
I added the following line in CMakeLists.txt, to add the local board information:
list(APPEND BOARD_ROOT ${CMAKE_CURRENT_SOURCE_DIR})
Step 9
I closed VSCode and re-opened it, then defined a new custom build configuration:
Result:
The application builds, using the customer dts and dtsi files.
Question:
Is this the correct way to modify an application to use a custom device?
Did I miss anything?
Regards
Garrett
