| /* |
| * Copyright (c) 2022, Thomas Stranger |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /* |
| * Example configuration of a DS18b20 device on an Arduino serial bus, using |
| * the zephyr-serial 1-Wire driver. |
| * Open drain configuration allows communication by simply connecting the bus |
| * line to the UART RX pin as well as the TX pin |
| * An external pull-up should be added anyways. |
| */ |
| |
| #include "serial_overlay.dtsi" |
| |
| &pinctrl { |
| uart1_default: uart1_default { |
| group1 { |
| psels = <NRF_PSEL(UART_RX, 1, 1)>; |
| bias-pull-up; |
| }; |
| group2 { |
| psels = <NRF_PSEL(UART_TX, 1, 2)>; |
| /* max. 5mA drive strength: */ |
| nordic,drive-mode = <NRF_DRIVE_H0D1>; |
| }; |
| }; |
| }; |
