:orphan:

.. title:: CONFIG_UART_0_NRF_HW_ASYNC

.. kconfig:: CONFIG_UART_0_NRF_HW_ASYNC

CONFIG_UART_0_NRF_HW_ASYNC
##########################

*Use hardware RX byte counting*

Type: ``bool``

Help
====

.. code-block:: none

    If default driver uses interrupts to count incoming bytes, it is possible
    that with higher speeds and/or high cpu load some data can be lost.
    It is recommended to use hardware byte counting in such scenarios.
    Hardware RX byte counting requires timer instance and one PPI channel

Direct dependencies
===================

\ :kconfig:`UART_0_NRF_UARTE <CONFIG_UART_0_NRF_UARTE>` && \ :kconfig:`UART_ASYNC_API <CONFIG_UART_ASYNC_API>` && (\ :kconfig:`UART_0_NRF_UART <CONFIG_UART_0_NRF_UART>` || \ :kconfig:`UART_0_NRF_UARTE <CONFIG_UART_0_NRF_UARTE>`) && \ :kconfig:`UART_NRFX <CONFIG_UART_NRFX>` && \ :kconfig:`SERIAL <CONFIG_SERIAL>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

No defaults. Implicitly defaults to ``n``.

Kconfig definition
==================



At ``<Zephyr Driver>/serial/Kconfig.nrfx:76``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:42`` → ``<Zephyr Driver>/Kconfig:26`` → ``<Zephyr Driver>/serial/Kconfig:116``

Menu path: (Top) → Device Drivers → Serial Drivers → nRF UART nrfx drivers

.. code-block:: kconfig

    config UART_0_NRF_HW_ASYNC
    	bool "Use hardware RX byte counting"
    	depends on UART_0_NRF_UARTE && UART_ASYNC_API && (UART_0_NRF_UART || UART_0_NRF_UARTE) && UART_NRFX && SERIAL
    	help
    	  If default driver uses interrupts to count incoming bytes, it is possible
    	  that with higher speeds and/or high cpu load some data can be lost.
    	  It is recommended to use hardware byte counting in such scenarios.
    	  Hardware RX byte counting requires timer instance and one PPI channel

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*