Help¶

Internal buffer of that size is created and used by uart_fifo_fill. For optimal performance it should be able to fit the longest possible packet.

Direct dependencies¶

NRF_SW_LPUART_INT_DRIVEN && NRF_SW_LPUART

(Includes any dependencies from ifs and menus.)

Default¶

128

Kconfig definition¶

At <nRF>/drivers/serial/Kconfig:45

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:23 → <Zephyr>/modules/Kconfig:6 → <BuildDir>/Kconfig/Kconfig.modules:2 → <nRF>/Kconfig.nrf:28 → <nRF>/drivers/Kconfig:15

Menu path: (Top) → Modules → nrf (/home/runner/work/sdk-nrf/sdk-nrf/ncs/nrf) → Nordic nRF Connect → Device Drivers → Low Power UART using REQ/RDY lines → Enable interrupt driven API

config NRF_SW_LPUART_INT_DRV_TX_BUF_SIZE
    int "Tx buffer size"
    default 128
    depends on NRF_SW_LPUART_INT_DRIVEN && NRF_SW_LPUART
    help
      Internal buffer of that size is created and used by uart_fifo_fill.
      For optimal performance it should be able to fit the longest possible
      packet.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)