|  | /* | 
|  | * Copyright (c) 2020 Nordic Semiconductor ASA | 
|  | * | 
|  | * SPDX-License-Identifier: Apache-2.0 | 
|  | */ | 
|  |  | 
|  | /dts-v1/; | 
|  | #include <nordic/nrf52820_qdaa.dtsi> | 
|  |  | 
|  | / { | 
|  | model = "Nordic nRF52833 DK NRF52820"; | 
|  | compatible = "nordic,nrf52833-dk-nrf52820"; | 
|  |  | 
|  | chosen { | 
|  | zephyr,console = &uart0; | 
|  | zephyr,shell-uart = &uart0; | 
|  | 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; | 
|  | }; | 
|  |  | 
|  | leds { | 
|  | compatible = "gpio-leds"; | 
|  | led0: led_0 { | 
|  | gpios = <&gpio0 13 GPIO_ACTIVE_LOW>; | 
|  | label = "Green LED 0"; | 
|  | }; | 
|  | led1: led_1 { | 
|  | gpios = <&gpio0 14 GPIO_ACTIVE_LOW>; | 
|  | label = "Green LED 1"; | 
|  | }; | 
|  | led2: led_2 { | 
|  | gpios = <&gpio0 15 GPIO_ACTIVE_LOW>; | 
|  | label = "Green LED 2"; | 
|  | }; | 
|  | led3: led_3 { | 
|  | gpios = <&gpio0 16 GPIO_ACTIVE_LOW>; | 
|  | label = "Green LED 3"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | pwmleds { | 
|  | compatible = "pwm-leds"; | 
|  | pwm_led0: pwm_led_0 { | 
|  | pwms = <&sw_pwm 13>; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | buttons { | 
|  | compatible = "gpio-keys"; | 
|  | button0: button_0 { | 
|  | gpios = <&gpio0 11 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>; | 
|  | label = "Push button switch 0"; | 
|  | }; | 
|  | button1: button_1 { | 
|  | gpios = <&gpio0 12 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>; | 
|  | label = "Push button switch 1"; | 
|  | }; | 
|  | button2: button_2 { | 
|  | gpios = <&gpio0 24 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>; | 
|  | label = "Push button switch 2"; | 
|  | }; | 
|  | button3: button_3 { | 
|  | gpios = <&gpio0 25 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>; | 
|  | label = "Push button switch 3"; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | /* These aliases are provided for compatibility with samples */ | 
|  | aliases { | 
|  | led0 = &led0; | 
|  | led1 = &led1; | 
|  | led2 = &led2; | 
|  | led3 = &led3; | 
|  | sw0 = &button0; | 
|  | sw1 = &button1; | 
|  | sw2 = &button2; | 
|  | sw3 = &button3; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &gpiote { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &gpio0 { | 
|  | status = "okay"; | 
|  | }; | 
|  |  | 
|  | &uart0 { | 
|  | compatible = "nordic,nrf-uarte"; | 
|  | status = "okay"; | 
|  | current-speed = <115200>; | 
|  | tx-pin = <6>; | 
|  | rx-pin = <8>; | 
|  | rts-pin = <5>; | 
|  | cts-pin = <7>; | 
|  | }; | 
|  |  | 
|  | &i2c0 { | 
|  | compatible = "nordic,nrf-twi"; | 
|  | status = "okay"; | 
|  | sda-pin = <28>; | 
|  | scl-pin = <29>; | 
|  | }; | 
|  |  | 
|  | &i2c1 { | 
|  | compatible = "nordic,nrf-twi"; | 
|  | /* Cannot be used together with spi1. */ | 
|  | /* status = "okay"; */ | 
|  | }; | 
|  |  | 
|  | &spi0 { | 
|  | compatible = "nordic,nrf-spi"; | 
|  | /* Cannot be used together with i2c0. */ | 
|  | /* status = "okay"; */ | 
|  | }; | 
|  |  | 
|  | &spi1 { | 
|  | status = "okay"; | 
|  | sck-pin = <17>; | 
|  | miso-pin = <20>; | 
|  | mosi-pin = <30>; | 
|  | }; | 
|  |  | 
|  | &flash0 { | 
|  |  | 
|  | partitions { | 
|  | compatible = "fixed-partitions"; | 
|  | #address-cells = <1>; | 
|  | #size-cells = <1>; | 
|  |  | 
|  | boot_partition: partition@0 { | 
|  | label = "mcuboot"; | 
|  | reg = <0x00000000 0xC000>; | 
|  | }; | 
|  | slot0_partition: partition@C000 { | 
|  | label = "image-0"; | 
|  | reg = <0x0000C000 0x17000>; | 
|  | }; | 
|  | slot1_partition: partition@23000 { | 
|  | label = "image-1"; | 
|  | reg = <0x00023000 0x17000>; | 
|  | }; | 
|  | storage_partition: partition@3a000 { | 
|  | label = "storage"; | 
|  | reg = <0x0003a000 0x00006000>; | 
|  | }; | 
|  | }; | 
|  | }; | 
|  |  | 
|  | &usbd { | 
|  | compatible = "nordic,nrf-usbd"; | 
|  | status = "okay"; | 
|  | }; |