| /* |
| * Copyright (c) 2021 Instituto de Pesquisas Eldorado (eldorado.org.br) |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| /dts-v1/; |
| |
| #include <espressif/esp32.dtsi> |
| #include "heltec_wifi_lora32_v2-pinctrl.dtsi" |
| |
| / { |
| model = "heltec_wifi_lora32"; |
| compatible = "espressif,esp32"; |
| |
| aliases { |
| uart-0 = &uart0; |
| i2c-0 = &i2c0; |
| led0 = &led0; |
| sw0 = &button0; |
| watchdog0 = &wdt0; |
| lora0 = &lora0; |
| }; |
| |
| leds { |
| compatible = "gpio-leds"; |
| led0: led { |
| gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>; |
| label = "White LED"; |
| }; |
| |
| vext: vext { |
| gpios = <&gpio0 21 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>; |
| label = "External VCC"; |
| }; |
| |
| oledrst: oledrst { |
| gpios = <&gpio0 16 (GPIO_PULL_UP | GPIO_ACTIVE_HIGH)>; |
| label = "OLED Reset"; |
| }; |
| }; |
| |
| buttons { |
| compatible = "gpio-keys"; |
| button0: button_0 { |
| gpios = <&gpio0 0 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>; |
| label = "PRG Button"; |
| }; |
| }; |
| |
| chosen { |
| zephyr,sram = &sram0; |
| zephyr,console = &uart0; |
| zephyr,shell-uart = &uart0; |
| zephyr,flash = &flash0; |
| }; |
| }; |
| |
| &cpu0 { |
| clock-frequency = <ESP32_CLK_CPU_240M>; |
| }; |
| |
| &cpu1 { |
| clock-frequency = <ESP32_CLK_CPU_240M>; |
| }; |
| |
| &uart0 { |
| status = "okay"; |
| current-speed = <115200>; |
| pinctrl-0 = <&uart0_default>; |
| pinctrl-names = "default"; |
| }; |
| |
| &gpio0 { |
| status = "okay"; |
| }; |
| |
| &trng0 { |
| status = "okay"; |
| }; |
| |
| &i2c0 { |
| status = "okay"; |
| clock-frequency = <I2C_BITRATE_FAST>; |
| sda-gpios = <&gpio0 4 GPIO_OPEN_DRAIN>; |
| scl-gpios = <&gpio0 15 GPIO_OPEN_DRAIN>; |
| pinctrl-0 = <&i2c0_default>; |
| pinctrl-names = "default"; |
| }; |
| |
| &spi3 { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| status = "okay"; |
| pinctrl-0 = <&spim3_default>; |
| pinctrl-names = "default"; |
| cs-gpios = <&gpio0 18 GPIO_ACTIVE_LOW>; |
| lora0: lora@0 { |
| compatible = "semtech,sx1276"; |
| reg = <0>; |
| reset-gpios = <&gpio0 14 GPIO_ACTIVE_LOW>; |
| dio-gpios = |
| /* SX1276 D0 -> GPIO26 */ |
| <&gpio0 26 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>, |
| /* SX1276 D1 -> GPIO35 */ |
| <&gpio1 3 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>, |
| /* SX1276 D1 -> GPIO34 */ |
| <&gpio1 2 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>; |
| spi-max-frequency = <1000000>; |
| power-amplifier-output = "pa-boost"; |
| }; |
| }; |
| |
| &flash0 { |
| status = "okay"; |
| partitions { |
| compatible = "fixed-partitions"; |
| #address-cells = <1>; |
| #size-cells = <1>; |
| |
| /* Reserve 60kB for the bootloader */ |
| boot_partition: partition@1000 { |
| label = "mcuboot"; |
| reg = <0x00001000 0x0000F000>; |
| read-only; |
| }; |
| |
| /* Reserve 1024kB for the application in slot 0 */ |
| slot0_partition: partition@10000 { |
| label = "image-0"; |
| reg = <0x00010000 0x00100000>; |
| }; |
| |
| /* Reserve 1024kB for the application in slot 1 */ |
| slot1_partition: partition@110000 { |
| label = "image-1"; |
| reg = <0x00110000 0x00100000>; |
| }; |
| |
| /* Reserve 256kB for the scratch partition */ |
| scratch_partition: partition@210000 { |
| label = "image-scratch"; |
| reg = <0x00210000 0x00040000>; |
| }; |
| |
| storage_partition: partition@250000 { |
| label = "storage"; |
| reg = <0x00250000 0x00006000>; |
| }; |
| }; |
| }; |
| |
| /* Required by the ssd1306_128x64 shield which enables the OLED display */ |
| arduino_i2c: &i2c0 {}; |