| # Copyright (c) 2025 Joel Guittet |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config UART_BITBANG |
| bool "Bitbang UART controller driver" |
| default y |
| depends on DT_HAS_ZEPHYR_UART_BITBANG_ENABLED |
| select SERIAL_HAS_DRIVER |
| select SERIAL_SUPPORT_INTERRUPT |
| select COUNTER |
| select RING_BUFFER |
| help |
| Enable the Bitbang UART controller. |
| The driver relies on counter interrupts to generate/sample UART |
| frames. By nature the accuracy of the interrupts period is not |
| guaranteed and subject to some impacts from the other activities of |
| the application. The relative deviation that could be observed is |
| lower when the baudrate is low. It is also recommended to have parity |
| and/or other error detection mechanisms to detect transmission |
| errors. |
| This driver is provided in the hope it will be useful to provide |
| extra UART interfaces and/or supports modes that are not supported by |
| hardware UART peripherals on some platforms. Applications integrating |
| this driver should be aware of the above limitations. |
