Commit graph

47 commits

Author SHA1 Message Date
Marc Herbert 2cd51a33ce samples: make find_package(Zephyr...) REQUIRED
This provides a better error message when building with CMake and
forgetting ZEPHYR_BASE or not registering Zephyr in the CMake package
registry. See parent commit for more details (split from parent for
better readability).

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2020-05-29 10:47:25 +02:00
Peter Bigot 0a07a29c74 boards: fix misleading size for partition
The length field for the MCUBOOT slot partitions in Nordic platforms
has always had an extra leading zero suggesting it's a 40-bit value,
being stored in a 32-bit field.  Remove the incorrect leading zero to
reduce misunderstanding of the field.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-05-13 21:25:29 +02:00
Kumar Gala d929e874c2 boards: dts: nrf: Remove SoC compatible in top-level compatible
The SoC node has compatibles for the specific SoC in place, having the
same compatible at the top level is technically a conflict and the
top-level one should really just be about the board.  Remove the SoC
related compatibles at the top-level.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-04-29 08:20:15 -05:00
Carles Cufi 6656214af2 boards: nrf52_pca10040: Rename to nrf52dk_nrf52832
The board name for the nRF52 DK, so far known as nrf52_pca10040, is
renamed to nrf52dk_nrf52832.  Its documentation and all references
to its name in the tree are updated accordingly. Overlay and
configuration files specific to this board are also renamed, to
match the new board name.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2020-04-06 13:09:07 +02:00
Andrzej Głąbek 97b07b943a drivers/serial/Kconfig.nrfx: Choose driver type basing on DT compatible
Remove prompts from Kconfig options `UART_x_NRF_UART*` that select
the type of nrfx driver (for UART or UARTE peripheral) to be used
for a given instance. This prevents the options from being modified
from configuration files.
Instead, make one of these options selected by default according to the
"compatible" property set for the corresponding UART node in devicetree.

This eliminates the need of changing both the "compatible" property in
devicetree and the Kconfig option selecting the driver type when a user
wants to switch between UART and UARTE for a given instance.

Since all `UART_x_NRF_UART*` options are made "hidden" by this commit,
all their occurrences in configuration files are removed.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2020-04-03 14:47:32 +02:00
Torsten Rasmussen 407b49b35c cmake: use find_package to locate Zephyr
Using find_package to locate Zephyr.

Old behavior was to use $ENV{ZEPHYR_BASE} for inclusion of boiler plate
code.

Whenever an automatic run of CMake happend by the build system / IDE
then it was required that ZEPHYR_BASE was defined.
Using ZEPHYR_BASE only to locate the Zephyr package allows CMake to
cache the base variable and thus allowing subsequent invocation even
if ZEPHYR_BASE is not set in the environment.

It also removes the risk of strange build results if a user switchs
between different Zephyr based project folders and forgetting to reset
ZEPHYR_BASE before running ninja / make.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-03-27 16:23:46 +01:00
Andrzej Głąbek 4253eae005 boards: nrf52840_pca10056: Rename board to nrf52840dk_nrf52840
The nRF52840 DK board target, so far known as nrf52840_pca10056,
is renamed to nrf52840dk_nrf52840.
Its documentation and all references to its name in the tree are
updated accordingly. Overlay and configuration files specific to
this board are also renamed, to match the new board name.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2020-03-27 09:14:08 +01:00
Ulf Magnusson c5839f834b kconfig: Remove assignments to CONFIG_<arch> syms and hide them
All board defconfig files currently set the architecture in addition to
the board and the SoC, by setting e.g. CONFIG_ARM=y. This spams up
defconfig files.

CONFIG_<arch> symbols currently being set in configuration files also
means that they are configurable (can be changed in menuconfig and in
configuration files), even though changing the architecture won't work,
since other things get set from -DBOARD=<board>. Many boards also allow
changing the architecture symbols independently from the SoC symbols,
which doesn't make sense.

Get rid of all assignments to CONFIG_<arch> symbols and clean up the
relationships between symbols and the configuration interface, like
this:

1. Remove the choice with the CONFIG_<arch> symbols in arch/Kconfig and
   turn the CONFIG_<arch> symbols into invisible
   (promptless/nonconfigurable) symbols instead.

   Getting rid of the choice allows the symbols to be 'select'ed (choice
   symbols don't support 'select').

2. Select the right CONFIG_<arch> symbol from the SOC_SERIES_* symbols.
   This makes sense since you know the architecture if you know the SoC.

   Put the select on the SOC_* symbol instead for boards that don't have
   a SOC_SERIES_*.

3. Remove all assignments to CONFIG_<arch> symbols. The assignments
   would generate errors now, since the symbols are promptless.

The change was done by grepping for assignments to CONFIG_<arch>
symbols, finding the SOC_SERIES_* (or SOC_*) symbol being set in the
same defconfig file, and putting a 'select' on it instead.

See
https://github.com/ulfalizer/zephyr/commits/hide-arch-syms-unsquashed
for a split-up version of this commit, which will make it easier to see
how stuff was done. This needs to go in as one commit though.

This change is safer than it might seem re. outstanding PRs, because any
assignment to CONFIG_<arch> symbols generates an error now, making
outdated stuff easy to catch.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2020-02-08 00:50:08 -06:00
Andrzej Puzdrowski 5f89145d6b boards: remove NFFS mentions from comments/doc
Replaced NFFS mentions by LittleFS in all <board>.dts comments
to storage partitions.
Replaced NFFS by LittleFS in a few boards documentation.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2020-01-21 15:32:47 +01:00
Ulf Magnusson b292f7643b kconfig: Remove assignments to promptless SOC_FAMILY_NRF symbol
SOC_FAMILY_NRF has no prompt. Assignments in configuration files have no
effect on symbols without prompts. A prompt means the symbol is
user-configurable.

SOC_FAMILY_NRF is instead enabled indirectly through being selected by
other symbols.

Detected through some work-in-progress improved error checking.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-12-18 14:42:58 +01:00
Emil Obalski 11849257c0 boards: Update defconfigs after renaming to USB_NRFX
Name convention for nordic USB driver changed
Kconfig files for custom boards have to be udapted accordingly.
Changes affect only name convention change.

Signed-off-by: Emil Obalski <emil.obalski@nordicsemi.no>
2019-11-13 10:33:38 -06:00
Ulf Magnusson 1f38ea77ba kconfig: Clean up 'config FOO' (two spaces) definitions
Must've been copy-pasted around.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-04 17:31:27 -05:00
Ulf Magnusson bd6e04411e kconfig: Clean up header comments and make them consistent
Use this short header style in all Kconfig files:

    # <description>

    # <copyright>
    # <license>

    ...

Also change all <description>s from

    # Kconfig[.extension] - Foo-related options

to just

    # Foo-related options

It's clear enough that it's about Kconfig.

The <description> cleanup was done with this command, along with some
manual cleanup (big letter at the start, etc.)

    git ls-files '*Kconfig*' | \
        xargs sed -i -E '1 s/#\s*Kconfig[\w.-]*\s*-\s*/# /'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-11-04 17:31:27 -05:00
Michael Scott c69081d775 boards: arm: nrf52840_pca10056/nrf52_pca10040: enable pyocd runner
Mbed OS provides a DAPlink firmware update for nRF52840-DK here:
https://os.mbed.com/platforms/Nordic-nRF52840-DK/
and for nRF52-DK here:
https://os.mbed.com/platforms/Nordic-nRF52-DK/

When using this firmware we need to flash the board with the pyocd
runner.  Let's enable the pyocd runner for this purpose.

Signed-off-by: Michael Scott <mike@foundries.io>
2019-07-10 12:11:46 -05:00
Anas Nashif 9ab2a56751 cleanup: include/: move misc/printk.h to sys/printk.h
move misc/printk.h to sys/printk.h and
create a shim for backward-compatibility.

No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.

Related to #16539

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-27 22:55:49 -04:00
Kumar Gala 8226aa128b samples: out_of_tree_board: remove board.h
We don't use board.h in general so lets remove it from this sample.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-06-26 09:11:07 -04:00
Ulf Magnusson a84ded74ea dts: Replace status = "ok" with status = "okay"
The DT spec. only has "okay" and not "ok". The Linux kernel has around
12k "okay"s and 300 "ok"s.

The scripts/dts scripts only check for "disabled", so should be safe re.
those at least.

The replacement was done with

    git ls-files | xargs sed -i 's/status\s*=\s*"ok"/status = "okay"/'

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-06-14 19:51:13 -05:00
Anas Nashif 3ae52624ff license: cleanup: add SPDX Apache-2.0 license identifier
Update the files which contain no license information with the
'Apache-2.0' SPDX license identifier.  Many source files in the tree are
missing licensing information, which makes it harder for compliance
tools to determine the correct license.

By default all files without license information are under the default
license of Zephyr, which is Apache version 2.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-04-07 08:45:22 -04:00
Anas Nashif da5f185e06 samples: add test identifier
Add unique identifier instead of just 'test' for samples.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-03-29 17:44:11 -04:00
Andrzej Głąbek 32223bd2ae boards: Enable GPIO by default on boards with nRF SoCs
This patch enables the GPIO driver by default on all boards equipped
with an nRF SoC (all boards having `CONFIG_SOC_FAMILY_NRF=y` in their
`_defconfig` file).
In vast majority of cases the driver is needed, so it is more
convenient to enable it at board level than in particular
applications.
And if the driver is undesired for some reason, it can be still
disabled in the application config.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2019-03-28 16:46:39 -05:00
Michael Scott 83aa7cecd4 boards: arm: nrf52840-based: Free up flash room for sample apps
The current flash configurations for all nRF52840's in Zephyr is
VERY constrained when it comes to allowing samples any space for
storage or custom areas.  It only leaves the last 4 pages of flash
for "storage".

The nRF52840 is also capable of using OpenThread which defaults
to using the last 4 pages of flash for storing OpenThread-related
network data.

This means that while using OpenThread under any configuration
designed to use mcuboot partition slots, there is no space left
over for storage of any kind.

Let's adjust the partition table to set storage at 8 pages of
flash (32k).  This fixes the conflict with OpenThread and leaves
room for future use cases that may arise.

Signed-off-by: Michael Scott <mike@foundries.io>
2019-03-15 08:52:06 -05:00
Anas Nashif 58632f8da7 doc: change board dts documentation with new URLs
flash-partitions page has moved...

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-02-05 07:04:40 -05:00
Kumar Gala 5977b3db2f dts: Remove mcuboot.overlay
As we want to remove dts dependency on Kconfig, we had a case based on
CONFIG_BOOTLOADER_MCUBOOT.  From a DTS point of view that was just
getting the chosen property 'zephyr,code-partition' set.  We can easily
move this to the actual dts files and remove the mcuboot.overlay.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2019-02-01 10:16:06 -06:00
Anas Nashif 5060ca6a30 cmake: increase minimal required version to 3.13.1
Move to latest cmake version with many bug fixes and enhancements.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2019-01-03 11:51:29 -05:00
Andrzej Głąbek 23d28ab400 samples: Remove redundant Kconfig adjustments for nRF boards
The options selecting nRF drivers are now enabled by default when
an nRF SoC is selected as the build target.
The options selecting given hardware instances are now enabled at
the board level.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-12-21 21:01:37 +01:00
Jakub Rzeszutko f8178dcb05 shell: remove Console dependencies
Removed Console dependencies from shell uart backend.
Generated define: CONFIG_UART_SHELL_ON_DEV_NAME for each board.

Fixes #10191

Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
2018-12-07 12:11:11 +01:00
Kumar Gala 90823520e2 dts: Remove ifdef CONFIG_FS_FLASH_STORAGE_PARTITION from dts files
Remove the ifdef related to CONFIG_FS_FLASH_STORAGE_PARTITION.  There
shouldn't be any harm in always having the partition around as we'll
just generate the defines related to and most applications will ignore
them.

Helps get one step closer to have DTS not depend on Kconfig.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-15 17:37:59 -05:00
Ulf Magnusson 4638652214 Kconfig: Use 'default' instead of 'def_bool' in Kconfig.defconfig files
This can help find unused symbols. Those end up without a type if
'default' is used instead of 'def_bool', which generates a warning.

Search for "Kconfig.defconfig" in
https://docs.zephyrproject.org/latest/application/kconfig-tips.html for
a longer explanation.

Keep the 'def_bool' for the following symbols, which seem to be
deliberately defined only in Kconfig.defconfig files:

 - ALTERA_AVALON_I2C
 - ALTERA_AVALON_MSGDMA
 - ALTERA_AVALON_PIO
 - ALTERA_AVALON_QSPI
 - ALTERA_AVALON_SYSID
 - CLOCK_CONTROL_IMX_CCM
 - CPU_EM4_DMIPS
 - CPU_EM4_FPUDA
 - CPU_EM4_FPUS
 - FP_FPU_DA
 - I2C_GECKO

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-11-13 16:04:01 -05:00
Andrzej Głąbek 20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Reto Schneider 7eabab2f5d samples, tests: Use semi-accurate project names
When using an IDE (e.g. Eclipse, Qt Creator), the project name gets
displayed. This greatly simplifies the navigation between projects when
having many of them open at the same time. Naming every project "NONE"
defeats this functionality.

This patch tries to use sensible project names while not duplicating
too much of what is already represented in the path. This is done by
using the name of the directory the relevant CMakeLists.txt file is
stored in. To ensure unique project names in the samples (and again, in
the tests folder) folder, small manual adjustments have been done.

Signed-off-by: Reto Schneider <code@reto-schneider.ch>
2018-10-27 21:31:25 -04:00
Sebastian Bøe d6de4c7a99 cmake: Fall back to ZEPHYR_BASE when the board is not in BOARD_ROOT
It is very inconvenient to maintain an application that both runs on a
Zephyr board and an out-of-tree board.

It forces one to write build scripts like this in the app:

if(BOARD STREQUAL my_out_of_tree_board)
  set(BOARD_ROOT some/out/of/tree/board/path)
endif()

To avoid this we change the semantics of BOARD_ROOT. Instead of it
being a path to the board root it is now a prioritized list of board
root directories. Zephyr will append ZEPHYR_BASE to BOARD_ROOT.

This ensures that Zephyr boards can be used when the out-of-tree board
directory can not supply the requested board.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-10-01 09:46:46 -04:00
Piotr Zięcik 9331064ff9 arch: nrf52: Remove ARM_MPU_NRF52X option.
The ARM_MPU_NRF52X option is just selecting ARM_MPU option,
which could be also controlled through menuconfig.

This commit removes the ARM_MPU_NRF52X option and replaces
its usage by ARM_MPU option.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2018-09-20 14:16:50 +02:00
Kumar Gala 236a2d6f13 dts: arm: nrf: Remove use of CONFIG_SOC_* from Nordic dts files
To move forward and remove use of Kconfig in dts files lets just create
SoC specific dtsi files that the boards can include.  This lets us
remove:

CONFIG_SOC_NRF51822_QFAA
CONFIG_SOC_NRF51822_QFAB
CONFIG_SOC_NRF51822_QFAC
CONFIG_SOC_NRF52810_QFAA
CONFIG_SOC_NRF52832_QFAA
CONFIG_SOC_NRF52832_CIAA
CONFIG_SOC_NRF52832_QFAB
CONFIG_SOC_NRF52840_QIAA

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-09-15 15:33:43 -05:00
Anas Nashif 81b272119a docs: fixed documenation pointers
Fixed URL to documentation, now latest docs are under /latest/..
Fixes #9932

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-09-12 12:03:18 -04:00
Paweł Zadrożniak 7c2197f2d8 boards: nrf: uart: Moved UART pin configuration to DTS (nRF boards)
UART pins (TX, RX, RTS, CTS) are now configured in DTS files.
RTS and CTS definitions are optional. If flow control is enabled
and RTS/CTS pins are not defined, then compiler will issue
an error message.

Signed-off-by: Paweł Zadrożniak <pawel.zadrozniak@nordicsemi.no>
2018-09-11 23:29:50 -05:00
Mieszko Mierunski 4f6aac1a67 dts: nrf5: Changed GPIO and GPIOTE define names
Changed names using nrf5 to nrf for consistency with other drivers.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2018-08-17 07:29:14 -07:00
Mieszko Mierunski 15813d343c boards: nrf: Changed GPIO default driver to NRFX shim
I removed GPIO configuration from board files and enabled them
as default in driver Kconfig file. All boards had GPIO ports
enabled that is why I decided to enable it by default.

Power management example was changed to use new driver.

Signed-off-by: Mieszko Mierunski <mieszko.mierunski@nordicsemi.no>
2018-08-17 07:29:14 -07:00
Sebastian Bøe 55ee53ce91 cmake: Prepend 'cmake_minimum_required()' into 'app' build scripts
Prepend the text 'cmake_minimum_required(VERSION 3.8.2)' into the
application and test build scripts.

Modern versions of CMake will spam users with a deprecation warning
when the toplevel CMakeLists.txt does not specify a CMake
version. This is documented in bug #8355.

To resolve this we include a cmake_minimum_required() line into the
toplevel build scripts. Additionally, cmake_minimum_required is
invoked from within boilerplate.cmake. The highest version will be
enforced.

This patch allows us to afterwards change CMake policy CMP000 from OLD
to NEW which in turn finally rids us of the verbose warning.

The extra boilerplate is considered more acceptable than the verbosity
of the CMP0000 policy.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-08-15 04:06:50 -07:00
Carles Cufi 957262e37d build: Replace GCC ARM Embedded with GNU Arm Embedded
The old GCC ARM Embedded website on launchpad
(https://launchpad.net/gcc-arm-embedded) has been superseeded by the new
GNU Arm Embedded one
(https://developer.arm.com/open-source/gnu-toolchain/gnu-rm).

This also means a change of name from "GCC" to "GNU". Reflect this in
the enviroment variables so that the proper term is used henceforth.

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
2018-08-09 13:57:55 +02:00
Marc Reilly 6c60abb03b drivers: gpio: add dts support for nrf52 gpio
This adds basic support for declaring gpio nodes in dts for nrf52.
The dts.fixup provides mapping for the generated defines to the config
defines currently used by the nrf gpio driver.

Existing boards that use nrf52 are updated.

Signed-off-by: Marc Reilly <marc@cpdesign.com.au>
2018-06-14 15:56:39 +02:00
Jakub Rzeszutko 3f99eefe5a drivers: uart: Rename nrf5 namings to nrfx
UART driver renamed to keep the same convention as SPI and TWI drivers.
All substrings: "UART_NRF5" in defines renamed to  "UART_NRFX_UART".

Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
2018-06-12 13:21:18 +02:00
Ulf Magnusson c5fda14358 samples: Quote BOARD value in custom board definition
Gets rid of a warning added in commit 6eabea3a7e ("Kconfiglib: Warn
for unquoted string defaults"), which will soon be an error (because a
simple warning whitelist will be used).

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-05-28 11:04:50 -04:00
Andrzej Puzdrowski 4954fe06f2 subsys: fs: fix generic storage partition selection
FS_FLASH_MAP_STORAGE keyword enables the storage partition,
but it was depend on flash_map module which is unused by
NFFS. This patch makes it independent thanks
to it is possible to enable the storage partition
without flash_map module.

FS_FLASH_MAP_STORAGE was renamed to
CONFIG_FS_FLASH_STORAGE_PARTITION
as it is independent for flash_map.

Signed-off-by: Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no>
2018-05-04 10:14:01 -04:00
Johan Hedberg 9968cda453 fs: Convert NFFS partition to a generic one
The NFFS partition at the end of flash is also useful for any other
file system or even the Flash Circular Buffer (FCB). Rename the
partition from 'nffs_partition' to 'storage_partition' and make it
depend on a new hidden Kconfig entry which the relevant users will
select (such as NFFS and FCB).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2018-04-26 16:06:55 +05:30
Anas Nashif 156091fba6 samples: sample.yaml cleanup
Cleanup test names and filtering and add console harness support where
needed.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-04-09 22:55:20 -04:00
Anas Nashif e9cc4ac3db samples: fix sample yaml file syntax
Add test definition correctly.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-03-31 11:23:49 -04:00
Sebastian Bøe bdc5c72498 samples: Add sample that demonstrates a custom board definition
Add a sample that demonstrates a custom board definition. This proves
that BOARD_ROOT works and can be a useful reference when creating a
custom board definition.

Instead of spending time making up a board, the nrf52840_pca10056
board has been copied as-is. And the hello world sample has been used
as the basis for the application.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-03-27 09:35:35 -04:00