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boards: Add Adafruit Feather nrf52840 Sense

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Add support for board based on the Express variant.
Board uses uf2 as it has no swd adaptor.

Signed-off-by: Jacob Winther <jacob@9.nz>
This commit is contained in:
Jacob Winther 2024-07-21 21:03:27 +12:00 • committed by Fabio Baltieri
commit b6ed4ba761
15 changed files with 432 additions and 152 deletions
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9
boards/adafruit/feather_nrf52840/Kconfig
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@ -8,4 +8,11 @@ config BOARD_ENABLE_DCDC
bool "DCDC mode"
select SOC_DCDC_NRF52X
default y
depends on BOARD_ADAFRUIT_FEATHER_NRF52840_EXPRESS
depends on BOARD_ADAFRUIT_FEATHER_NRF52840_EXPRESS || BOARD_ADAFRUIT_FEATHER_NRF52840_SENSE
if BOARD_ADAFRUIT_FEATHER_NRF52840_SENSE
config BOARD_SERIAL_BACKEND_CDC_ACM
bool "USB CDC"
default y
endif # BOARD_ADAFRUIT_FEATHER_NRF52840_SENSE

8
boards/adafruit/feather_nrf52840/Kconfig.adafruit_feather_nrf52840_sense Normal file
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@ -0,0 +1,8 @@
# Adafruit Feather nRF52840 Express board configuration
# Copyright (c) 2020 Tobias Svehagen
# Copyright (c) 2024 Jacob Winther
# SPDX-License-Identifier: Apache-2.0
config BOARD_ADAFRUIT_FEATHER_NRF52840_SENSE
select SOC_NRF52840_QIAA

46
boards/adafruit/feather_nrf52840/Kconfig.defconfig
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@ -4,9 +4,51 @@
# Copyright (c) 2024 Jacob Winther
# SPDX-License-Identifier: Apache-2.0
if BOARD_ADAFRUIT_FEATHER_NRF52840_EXPRESS
if (BOARD_ADAFRUIT_FEATHER_NRF52840_EXPRESS || BOARD_ADAFRUIT_FEATHER_NRF52840_SENSE)
config BT_CTLR
default BT
endif # BOARD_ADAFRUIT_FEATHER_NRF52840_EXPRESS
if BOARD_SERIAL_BACKEND_CDC_ACM
config USB_DEVICE_STACK
default y
config USB_CDC_ACM
default SERIAL
config UART_CONSOLE
default CONSOLE
config USB_DEVICE_INITIALIZE_AT_BOOT
default y if CONSOLE
config SHELL_BACKEND_SERIAL_CHECK_DTR
default SHELL
depends on UART_LINE_CTRL
config UART_LINE_CTRL
default SHELL
config USB_DEVICE_REMOTE_WAKEUP
default n
if LOG
# Logger cannot use itself to log
config USB_CDC_ACM_LOG_LEVEL
default 0
# Set USB log level to error only
config USB_DEVICE_LOG_LEVEL
default 1
# Wait 1500ms at startup for logging
config LOG_PROCESS_THREAD_STARTUP_DELAY_MS
default 1500
endif # LOG
endif # BOARD_SERIAL_BACKEND_CDC_ACM
endif # BOARD_ADAFRUIT_FEATHER_NRF52840_EXPRESS || BOARD_ADAFRUIT_FEATHER_NRF52840_SENSE

130
boards/adafruit/feather_nrf52840/adafruit_feather_nrf52840_common.dtsi Normal file
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@ -0,0 +1,130 @@
/*
* Copyright (c) 2020 Tobias Svehagen
* Copyright (c) 2024 Jacob Winther
*
* SPDX-License-Identifier: Apache-2.0
*/
/dts-v1/;
#include <nordic/nrf52840_qiaa.dtsi>
#include "feather_connector.dtsi"
#include "adafruit_feather_nrf52840-pinctrl.dtsi"
#include <zephyr/dt-bindings/input/input-event-codes.h>
/ {
chosen {
zephyr,sram = &sram0;
zephyr,flash = &flash0;
zephyr,ieee802154 = &ieee802154;
};
leds {
compatible = "gpio-leds";
led0: led_0 {
label = "Red LED";
};
led1: led_1 {
gpios = <&gpio1 10 0>;
label = "Blue LED";
};
};
buttons {
compatible = "gpio-keys";
button0: button_0 {
gpios = <&gpio1 2 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
label = "Push button switch";
zephyr,code = <INPUT_KEY_0>;
};
};
vbatt {
compatible = "voltage-divider";
io-channels = <&adc 5>;
output-ohms = <100000>;
full-ohms = <(100000 + 100000)>;
};
/* These aliases are provided for compatibility with samples */
aliases {
led0 = &led0;
led1 = &led1;
sw0 = &button0;
watchdog0 = &wdt0;
};
};
&adc {
status = "okay";
};
&uicr {
gpio-as-nreset;
};
&gpiote {
status = "okay";
};
&gpio0 {
status = "okay";
};
&gpio1 {
status = "okay";
};
&uart0 {
compatible = "nordic,nrf-uart";
current-speed = <115200>;
status = "okay";
pinctrl-0 = <&uart0_default>;
pinctrl-1 = <&uart0_sleep>;
pinctrl-names = "default", "sleep";
};
&i2c0 {
compatible = "nordic,nrf-twi";
status = "okay";
pinctrl-0 = <&i2c0_default>;
pinctrl-1 = <&i2c0_sleep>;
pinctrl-names = "default", "sleep";
};
&spi1 {
compatible = "nordic,nrf-spi";
status = "okay";
pinctrl-0 = <&spi1_default>;
pinctrl-1 = <&spi1_sleep>;
pinctrl-names = "default", "sleep";
};
&qspi {
status = "okay";
pinctrl-0 = <&qspi_default>;
pinctrl-1 = <&qspi_sleep>;
pinctrl-names = "default", "sleep";
gd25q16: gd25q16@0 {
compatible = "nordic,qspi-nor";
reg = <0>;
writeoc = "pp4o";
readoc = "read4io";
sck-frequency = <16000000>;
jedec-id = [ c8 40 15 ];
size = <16777216>;
has-dpd;
t-enter-dpd = <20000>;
t-exit-dpd = <20000>;
quad-enable-requirements = "S2B1v1";
};
};
&ieee802154 {
status = "okay";
};
zephyr_udc0: &usbd {
compatible = "nordic,nrf-usbd";
status = "okay";
};

116
boards/adafruit/feather_nrf52840/adafruit_feather_nrf52840_express.dts
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@ -6,14 +6,12 @@
*/
/dts-v1/;
#include <nordic/nrf52840_qiaa.dtsi>
#include "feather_connector.dtsi"
#include "adafruit_feather_nrf52840-pinctrl.dtsi"
#include <zephyr/dt-bindings/input/input-event-codes.h>
#include "adafruit_feather_nrf52840_common.dtsi"
/ {
model = "Adafruit Feather nRF52840 Express";
compatible = "adafruit,feather-nrf52840-express";
compatible = "adafruit,feather_nrf52840-express";
chosen {
zephyr,console = &uart0;
@ -21,120 +19,17 @@
zephyr,uart-mcumgr = &uart0;
zephyr,bt-mon-uart = &uart0;
zephyr,bt-c2h-uart = &uart0;
zephyr,sram = &sram0;
zephyr,flash = &flash0;
zephyr,code-partition = &slot0_partition;
zephyr,ieee802154 = &ieee802154;
};
leds {
compatible = "gpio-leds";
led0: led_0 {
gpios = <&gpio1 15 0>;
label = "Red LED";
};
led1: led_1 {
gpios = <&gpio1 10 0>;
label = "Blue LED";
};
};
buttons {
compatible = "gpio-keys";
button0: button_0 {
gpios = <&gpio1 2 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
label = "Push button switch";
zephyr,code = <INPUT_KEY_0>;
};
};
vbatt {
compatible = "voltage-divider";
io-channels = <&adc 5>;
output-ohms = <100000>;
full-ohms = <(100000 + 100000)>;
};
/* These aliases are provided for compatibility with samples */
aliases {
led0 = &led0;
led1 = &led1;
sw0 = &button0;
watchdog0 = &wdt0;
};
};
&adc {
status = "okay";
};
&uicr {
gpio-as-nreset;
};
&gpiote {
status = "okay";
};
&gpio0 {
status = "okay";
};
&gpio1 {
status = "okay";
};
&uart0 {
compatible = "nordic,nrf-uart";
current-speed = <115200>;
status = "okay";
pinctrl-0 = <&uart0_default>;
pinctrl-1 = <&uart0_sleep>;
pinctrl-names = "default", "sleep";
};
&i2c0 {
compatible = "nordic,nrf-twi";
status = "okay";
pinctrl-0 = <&i2c0_default>;
pinctrl-1 = <&i2c0_sleep>;
pinctrl-names = "default", "sleep";
};
&spi1 {
compatible = "nordic,nrf-spi";
status = "okay";
pinctrl-0 = <&spi1_default>;
pinctrl-1 = <&spi1_sleep>;
pinctrl-names = "default", "sleep";
};
&qspi {
status = "okay";
pinctrl-0 = <&qspi_default>;
pinctrl-1 = <&qspi_sleep>;
pinctrl-names = "default", "sleep";
gd25q16: gd25q16@0 {
compatible = "nordic,qspi-nor";
reg = <0>;
writeoc = "pp4o";
readoc = "read4io";
sck-frequency = <16000000>;
jedec-id = [c8 40 15];
size = <16777216>;
has-dpd;
t-enter-dpd = <20000>;
t-exit-dpd = <20000>;
quad-enable-requirements = "S2B1v1";
};
};
&ieee802154 {
status = "okay";
};
&flash0 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
@ -169,8 +64,3 @@
};
};
};
zephyr_udc0: &usbd {
compatible = "nordic,nrf-usbd";
status = "okay";
};

2
boards/adafruit/feather_nrf52840/adafruit_feather_nrf52840_express.yaml
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@ -1,4 +1,4 @@
identifier: adafruit_feather_nrf52840_express/nrf52840
identifier: adafruit_feather_nrf52840_express
name: Adafruit Feather nRF52840 Express
type: mcu
arch: arm

78
boards/adafruit/feather_nrf52840/adafruit_feather_nrf52840_sense.dts Normal file
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@ -0,0 +1,78 @@
/*
* Copyright (c) 2020 Tobias Svehagen
* Copyright (c) 2024 Jacob Winther
*
* SPDX-License-Identifier: Apache-2.0
*/
/dts-v1/;
#include "adafruit_feather_nrf52840_common.dtsi"
/ {
model = "Adafruit Feather nRF52840 Sense";
compatible = "adafruit,feather_nrf52840-sense";
chosen {
zephyr,console = &cdc_acm_uart0;
zephyr,shell-uart = &cdc_acm_uart0;
zephyr,uart-mcumgr = &cdc_acm_uart0;
zephyr,bt-mon-uart = &cdc_acm_uart0;
zephyr,bt-c2h-uart = &cdc_acm_uart0;
zephyr,code-partition = &code_partition;
};
leds {
led0: led_0 {
gpios = <&gpio1 9 0>;
};
};
};
&i2c0 {
SHT3XD: sht3xd@44 {
compatible = "sensirion,sht3xd";
reg = <0x44>;
};
};
&flash0 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
/* To enable flashing with UF2 bootloader, we
* must reserve a partition for SoftDevice.
* See https://learn.adafruit.com/
* introducing-the-adafruit-nrf52840-feather?view=all#hathach-memory-map
*/
reserved_partition_0: partition@0 {
label = "SoftDevice";
reg = <0x000000000 DT_SIZE_K(152)>;
};
code_partition: partition@26000 {
label = "Application";
reg = <0x00026000 DT_SIZE_K(796)>;
};
/*
* The flash starting at 0x000ed000 and ending at
* 0x000f4000 is reserved for use by the application.
*/
storage_partition: partition@ed000 {
label = "storage";
reg = <0x0000ed000 DT_SIZE_K(28)>;
};
boot_partition: partition@f4000 {
label = "UF2";
reg = <0x000f4000 DT_SIZE_K(48)>;
};
};
};
zephyr_udc0: &usbd {
cdc_acm_uart0: cdc_acm_uart0 {
compatible = "zephyr,cdc-acm-uart";
};
};

19
boards/adafruit/feather_nrf52840/adafruit_feather_nrf52840_sense.yaml Normal file
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@ -0,0 +1,19 @@
identifier: adafruit_feather_nrf52840_sense
name: Adafruit Feather nRF52840 Sense
type: mcu
arch: arm
toolchain:
- zephyr
- gnuarmemb
- xtools
supported:
- adc
- usb_device
- usb_cdc
- ble
- watchdog
- counter
- feather_serial
- feather_i2c
- feather_spi
vendor: adafruit

25
boards/adafruit/feather_nrf52840/adafruit_feather_nrf52840_sense_defconfig Normal file
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@ -0,0 +1,25 @@
# SPDX-License-Identifier: Apache-2.0
# Enable MPU
CONFIG_ARM_MPU=y
# enable GPIO
CONFIG_GPIO=y
# enable uart driver
CONFIG_SERIAL=y
# enable console
CONFIG_CONSOLE=y
CONFIG_UART_CONSOLE=y
# 32kHz clock source
CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y
CONFIG_CLOCK_CONTROL_NRF_K32SRC_500PPM=y
# enable bossac
CONFIG_BOOTLOADER_BOSSA=y
CONFIG_BOOTLOADER_BOSSA_ADAFRUIT_UF2=y
# Build UF2 by default, supported by the Adafruit nRF52 Bootloader
CONFIG_BUILD_OUTPUT_UF2=y

3
boards/adafruit/feather_nrf52840/board.cmake
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@ -2,6 +2,9 @@
board_runner_args(jlink "--device=nRF52840_xxAA" "--speed=4000")
board_runner_args(pyocd "--target=nrf52840" "--frequency=4000000")
if(CONFIG_BOARD_ADAFRUIT_FEATHER_NRF52840_SENSE)
include(${ZEPHYR_BASE}/boards/common/uf2.board.cmake)
endif()
include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)
include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)
include(${ZEPHYR_BASE}/boards/common/blackmagicprobe.board.cmake)

8
boards/adafruit/feather_nrf52840/board.yml
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@ -1,5 +1,9 @@
board:
name: adafruit_feather_nrf52840_express
boards:
- name: adafruit_feather_nrf52840_express
vendor: adafruit
socs:
- name: nrf52840
- name: adafruit_feather_nrf52840_sense
vendor: adafruit
socs:
- name: nrf52840

0
boards/adafruit/feather_nrf52840/doc/img/adafruit_feather_nrf52840.jpg → boards/adafruit/feather_nrf52840/doc/img/adafruit_feather_nrf52840_express.jpg
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107
boards/adafruit/feather_nrf52840/doc/index.rst
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@ -1,7 +1,7 @@
.. _adafruit_feather_nrf52840:
Adafruit Feather nRF52840 Express
#################################
Adafruit Feather nRF52840 (Express, Sense)
##########################################
Overview
********
@ -25,10 +25,20 @@ nRF52840 ARM Cortex-M4F CPU and the following devices:
* :abbr:`USB (Universal Serial Bus)`
* :abbr:`WDT (Watchdog Timer)`
.. figure:: img/adafruit_feather_nrf52840.jpg
.. tabs::
.. group-tab:: Express
.. figure:: img/adafruit_feather_nrf52840_express.jpg
:align: center
:alt: Adafruit Feather nRF52840 Express
.. group-tab:: Sense
.. figure:: img/adafruit_feather_nrf52840_sense.jpg
:align: center
:alt: Adafruit Feather nRF52840 Sense
Hardware
********
@ -39,7 +49,14 @@ Hardware
- 2 User LEDs
- 1 NeoPixel LED
- Reset button
- SWD connector
- SWD connector (Express only)
- SWD solder pads on bottom of PCB (Sense only)
- LSM6DS33 Accel/Gyro (Sense only)
- LIS3MDL magnetometer (Sense only)
- APDS9960 Proximity, Light, Color, and Gesture Sensor (Sense only)
- MP34DT01-M PDM Microphone sound sensor (Sense only)
- SHT3X Humidity sensor (Sense only)
- BMP280 temperature and barometric pressure/altitude (Sense only)
Supported Features
==================
@ -85,13 +102,25 @@ Other hardware features have not been enabled yet for this board.
Connections and IOs
===================
The `Adafruit Feather nRF52840 Express Learn site`_ has detailed
information about the board including `pinouts`_ and the `schematic`_.
.. tabs::
.. group-tab:: Express
The `Adafruit Feather nRF52840 Express Learn site`_ has
detailed information about the board including
`pinouts (Express)`_ and the `schematic (Express)`_.
.. group-tab:: Sense
The `Adafruit Feather nRF52840 Sense Learn site`_ has
detailed information about the board including
`pinouts (Sense)`_ and the `schematic (Sense)`_.
LED
---
* LED0 (red) = P1.15
* LED0 (red) = P1.15 (Express)
* LED0 (red) = P1.9 (Sense)
* LED1 (blue) = P1.10
Push buttons
@ -103,33 +132,56 @@ Push buttons
Programming and Debugging
*************************
Applications for the ``adafruit_feather_nrf52840_express`` board configuration
can be built and flashed in the usual way (see :ref:`build_an_application`
and :ref:`application_run` for more details).
Flashing
========
Flashing Zephyr onto the ``adafruit_feather_nrf52480_express`` board requires
an external programmer. The programmer is attached to the SWD header.
Flashing Zephyr onto the ``adafruit_feather_nrf52480_express`` board is possible
using an external programmer. The programmer is attached to the SWD header.
Build the Zephyr kernel and the :zephyr:code-sample:`blinky` sample application.
The Feather nRF52840 ships with the `Adafruit nRF52 Bootloader`_ which
supports flashing using `UF2`_. This allows easy flashing of new images,
but does not support debugging the device.
#. Build the Zephyr kernel and the :zephyr:code-sample:`blinky` sample application.
.. tabs::
.. group-tab:: Express
.. zephyr-app-commands::
:zephyr-app: samples/basic/blinky
:board: adafruit_feather_nrf52840_express
:board: adafruit_feather_nrf52840_express/nrf52840
:goals: build
:compact:
Flash the image.
.. group-tab:: Sense
.. zephyr-app-commands::
:zephyr-app: samples/basic/blinky
:board: adafruit_feather_nrf52840_express
:board: adafruit_feather_nrf52840_sense/nrf52840
:goals: build
:compact:
#. If using UF2, connect the board to your host computer using USB.
#. Tap the reset button twice quickly to enter bootloader mode.
A mass storage device named `FTHR840BOOT` for (Express) or
`FTHRSNSBOOT` (Sense) should appear on the host. Ensure this is
mounted.
#. Flash the image.
.. tabs::
.. group-tab:: Sense
.. zephyr-app-commands::
:zephyr-app: samples/basic/blinky
:board: adafruit_feather_nrf52840_sense
:goals: flash
:compact:
You should see the red LED blink.
#. You should see the red LED blink.
References
**********
@ -139,8 +191,23 @@ References
.. _Adafruit Feather nRF52840 Express Learn site:
https://learn.adafruit.com/introducing-the-adafruit-nrf52840-feather/
.. _pinouts:
.. _pinouts (Express):
https://learn.adafruit.com/introducing-the-adafruit-nrf52840-feather/pinouts
.. _schematic:
.. _schematic (Express):
https://learn.adafruit.com/introducing-the-adafruit-nrf52840-feather/downloads
.. _Adafruit Feather nRF52840 Sense Learn site:
https://learn.adafruit.com/adafruit-feather-sense
.. _pinouts (Sense):
https://learn.adafruit.com/adafruit-feather-sense/pinouts
.. _schematic (Sense):
https://learn.adafruit.com/adafruit-feather-sense/downloads
.. _Adafruit nRF52 Bootloader:
https://github.com/adafruit/Adafruit_nRF52_Bootloader
.. _UF2:
https://github.com/microsoft/uf2

7
tests/drivers/adc/adc_api/boards/adafruit_feather_nrf52840_sense.overlay Normal file
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@ -0,0 +1,7 @@
/*
* SPDX-License-Identifier: Apache-2.0
*
* Copyright (c) 2023 Benjamin Björnsson <benjamin.bjornsson@gmail.com>
*/
#include "nordic,nrf-saadc-common.dtsi"