| # Copyright (c) 2025 Joel Guittet |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: Zephyr UART Bitbang driver |
| |
| compatible: "zephyr,uart-bitbang" |
| |
| include: |
| - name: uart-controller.yaml |
| property-blocklist: |
| - clock-frequency |
| |
| properties: |
| tx-gpios: |
| type: phandle-array |
| description: | |
| Tx gpio info. |
| |
| rx-gpios: |
| type: phandle-array |
| description: | |
| Rx gpio info. |
| |
| de-gpios: |
| type: phandle-array |
| description: | |
| RS485 driver enable gpio info. |
| |
| tx-timer: |
| type: phandle |
| description: | |
| Reference to a TIMER instance to handle Tx data. |
| Tx timer and Rx timer can be the same instance in the case of half-duplex |
| communications (no transmission and reception of data at the same time). |
| |
| rx-timer: |
| type: phandle |
| description: | |
| Reference to a TIMER instance to handle Rx data. |
| Tx timer and Rx timer can be the same instance in the case of half-duplex |
| communications (no transmission and reception of data at the same time). |
| |
| tx-fifo-size: |
| type: int |
| default: 64 |
| description: | |
| Size of the Tx ring buffer. |
| |
| rx-fifo-size: |
| type: int |
| default: 64 |
| description: | |
| Size of the Rx ring buffer. |
| |
| msb: |
| type: boolean |
| description: | |
| Indicate data are transferred Most Significant Bit (MSB) first. |
| |
| hw-rs485-flow-control: |
| type: boolean |
| description: | |
| Set to enable DE (driver enable) signal, which can be used to enable |
| the driver of an external RS-485 transceiver. Note hw-flow-control |
| should be set to false. |
