# Kconfig.nrfx - nrfx UART configuration # # Copyright (c) 2016 - 2018, Nordic Semiconductor ASA # # SPDX-License-Identifier: Apache-2.0 # menuconfig UART_NRFX bool "nRF UART nrfx drivers" default y select SERIAL_HAS_DRIVER select SERIAL_SUPPORT_INTERRUPT select SERIAL_SUPPORT_ASYNC depends on SOC_FAMILY_NRF help Enable support for nrfx UART drivers for nRF MCU series. Peripherals with the same instance ID cannot be used together, e.g. UART_0 and UARTE_0. if UART_NRFX # ----------------- port 0 ----------------- choice prompt "UART Port 0 Driver type" optional config UART_0_NRF_UART bool "nRF UART 0" depends on HAS_HW_NRF_UART0 select NRF_UART_PERIPHERAL help Enable nRF UART without EasyDMA on port 0. config UART_0_NRF_UARTE bool "nRF UARTE 0" # In nRF91 Series SoCs, UART peripherals share certain resources with # SPI and TWI peripherals having the same instance number, and therefore # these cannot be used simultaneously. depends on HAS_HW_NRF_UARTE0 && !(SOC_SERIES_NRF91X && (SPI_0 || I2C_0)) select NRF_UARTE_PERIPHERAL help Enable nRF UART with EasyDMA on port 0. endchoice if UART_0_NRF_UART || UART_0_NRF_UARTE config UART_0_INTERRUPT_DRIVEN bool "Enable interrupt support on port 0" depends on UART_INTERRUPT_DRIVEN default y help This option enables UART interrupt support on port 0. config UART_0_ASYNC bool "Enable Asynchronous API support on port 0" depends on UART_ASYNC_API && !UART_0_INTERRUPT_DRIVEN default y help This option enables UART Asynchronous API support on port 0. config UART_0_NRF_PARITY_BIT bool "Enable parity bit" help Enable parity bit. config UART_0_NRF_FLOW_CONTROL bool "Enable flow control" help Enable flow control. If selected, additionally two pins, RTS and CTS have to be configured. config UART_0_NRF_TX_BUFFER_SIZE int "Size of RAM buffer" depends on UART_0_NRF_UARTE range 1 65535 default 32 help Size of the transmit buffer for API function: fifo_fill. This value is limited by range of TXD.MAXCNT register for particular SoC. config UART_0_NRF_HW_ASYNC bool "Use hardware RX byte counting" depends on UART_0_NRF_UARTE depends on UART_ASYNC_API 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 config UART_0_NRF_HW_ASYNC_TIMER int "Timer instance" depends on UART_0_NRF_HW_ASYNC config UART_0_GPIO_MANAGEMENT bool "Enable GPIO management on port 0" depends on UART_0_NRF_UARTE && DEVICE_POWER_MANAGEMENT default y help If enabled, the driver will configure the GPIOs used by the uart to their default configuration when device is powered down. The GPIOs will be configured back to correct state when UART is powered up. endif # UART_0_NRF_UART || UART_0_NRF_UARTE # ----------------- port 1 ----------------- config UART_1_NRF_UARTE bool "nRF UARTE 1" # In nRF91 Series SoCs, UART peripherals share certain resources with # SPI and TWI peripherals having the same instance number, and therefore # these cannot be used simultaneously. depends on HAS_HW_NRF_UARTE1 && !(SOC_SERIES_NRF91X && (SPI_1 || I2C_1)) select NRF_UARTE_PERIPHERAL help Enable nRF UART with EasyDMA on port 1. if UART_1_NRF_UARTE config UART_1_INTERRUPT_DRIVEN bool "Enable interrupt support on port 1" depends on UART_INTERRUPT_DRIVEN default y help This option enables UART interrupt support on port 1. config UART_1_ASYNC bool "Enable Asynchronous API support on port 1" depends on UART_ASYNC_API && !UART_1_INTERRUPT_DRIVEN default y help This option enables UART Asynchronous API support on port 1. config UART_1_NRF_PARITY_BIT bool "Enable parity bit" help Enable parity bit. config UART_1_NRF_FLOW_CONTROL bool "Enable flow control" help Enable flow control. If selected, additionally two pins, RTS and CTS have to be configured. config UART_1_NRF_TX_BUFFER_SIZE int "Size of RAM buffer" depends on UART_INTERRUPT_DRIVEN range 1 65535 default 32 help Size of the transmit buffer for API function: fifo_fill. This value is limited by range of TXD.MAXCNT register for particular SoC. config UART_1_NRF_HW_ASYNC bool "Use hardware RX byte counting" depends on UART_1_ASYNC 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 config UART_1_NRF_HW_ASYNC_TIMER int "Timer instance" depends on UART_1_NRF_HW_ASYNC config UART_1_GPIO_MANAGEMENT bool "Enable GPIO management on port 1" depends on DEVICE_POWER_MANAGEMENT default y help If enabled, the driver will configure the GPIOs used by the uart to their default configuration when device is powered down. The GPIOs will be configured back to correct state when UART is powered up. endif # UART_1_NRF_UARTE # ----------------- port 2 ----------------- config UART_2_NRF_UARTE bool "nRF UARTE 2" # In nRF91 Series SoCs, UART peripherals share certain resources with # SPI and TWI peripherals having the same instance number, and therefore # these cannot be used simultaneously. depends on HAS_HW_NRF_UARTE2 && !(SOC_SERIES_NRF91X && (SPI_2 || I2C_2)) select NRF_UARTE_PERIPHERAL help Enable nRF UART with EasyDMA on port 2. if UART_2_NRF_UARTE config UART_2_INTERRUPT_DRIVEN bool "Enable interrupt support on port 2" depends on UART_INTERRUPT_DRIVEN default y help This option enables UART interrupt support on port 2. config UART_2_ASYNC bool "Enable Asynchronous API support on port 2" depends on UART_ASYNC_API && !UART_2_INTERRUPT_DRIVEN default y help This option enables UART Asynchronous API support on port 2. config UART_2_NRF_PARITY_BIT bool "Enable parity bit" help Enable parity bit. config UART_2_NRF_FLOW_CONTROL bool "Enable flow control" help Enable flow control. If selected, additionally two pins, RTS and CTS have to be configured. config UART_2_NRF_TX_BUFFER_SIZE int "Size of RAM buffer" range 1 65535 default 32 help Size of the transmit buffer for API function: fifo_fill. This value is limited by range of TXD.MAXCNT register for particular SoC. config UART_2_NRF_HW_ASYNC bool "Use hardware RX byte counting" depends on UART_2_ASYNC 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 config UART_2_NRF_HW_ASYNC_TIMER int "Timer instance" depends on UART_2_NRF_HW_ASYNC config UART_2_GPIO_MANAGEMENT bool "Enable GPIO management on port 2" depends on DEVICE_POWER_MANAGEMENT default y help If enabled, the driver will configure the GPIOs used by the uart to their default configuration when device is powered down. The GPIOs will be configured back to correct state when UART is powered up. endif # UART_2_NRF_UARTE # ----------------- port 3 ----------------- config UART_3_NRF_UARTE bool "nRF UARTE 3" # In nRF91 Series SoCs, UART peripherals share certain resources with # SPI and TWI peripherals having the same instance number, and therefore # these cannot be used simultaneously. depends on HAS_HW_NRF_UARTE3 && !(SOC_SERIES_NRF91X && (SPI_3 || I2C_3)) select NRF_UARTE_PERIPHERAL help Enable nRF UART with EasyDMA on port 3. if UART_3_NRF_UARTE config UART_3_INTERRUPT_DRIVEN bool "Enable interrupt support on port 3" depends on UART_INTERRUPT_DRIVEN default y help This option enables UART interrupt support on port 3. config UART_3_ASYNC bool "Enable Asynchronous API support on port 3" depends on UART_ASYNC_API && !UART_3_INTERRUPT_DRIVEN default y help This option enables UART Asynchronous API support on port 3. config UART_3_NRF_PARITY_BIT bool "Enable parity bit" help Enable parity bit. config UART_3_NRF_FLOW_CONTROL bool "Enable flow control" help Enable flow control. If selected, additionally two pins, RTS and CTS have to be configured. config UART_3_NRF_TX_BUFFER_SIZE int "Size of RAM buffer" range 1 65535 default 32 help Size of the transmit buffer for API function: fifo_fill. This value is limited by range of TXD.MAXCNT register for particular SoC. config UART_3_NRF_HW_ASYNC bool "Use hardware RX byte counting" depends on UART_3_ASYNC 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 config UART_3_NRF_HW_ASYNC_TIMER int "Timer instance" depends on UART_3_NRF_HW_ASYNC config UART_3_GPIO_MANAGEMENT bool "Enable GPIO management on port 3" depends on DEVICE_POWER_MANAGEMENT default y help If enabled, the driver will configure the GPIOs used by the uart to their default configuration when device is powered down. The GPIOs will be configured back to correct state when UART is powered up. endif # UART_3_NRF_UARTE config NRFX_TIMER0 default y depends on UART_0_NRF_HW_ASYNC_TIMER = 0 || UART_1_NRF_HW_ASYNC_TIMER = 0 || \ UART_3_NRF_HW_ASYNC_TIMER = 0 || UART_2_NRF_HW_ASYNC_TIMER = 0 config NRFX_TIMER1 default y depends on UART_0_NRF_HW_ASYNC_TIMER = 1 || UART_1_NRF_HW_ASYNC_TIMER = 1 || \ UART_3_NRF_HW_ASYNC_TIMER = 1 || UART_2_NRF_HW_ASYNC_TIMER = 1 config NRFX_TIMER2 default y depends on UART_0_NRF_HW_ASYNC_TIMER = 2 || UART_1_NRF_HW_ASYNC_TIMER = 2 || \ UART_3_NRF_HW_ASYNC_TIMER = 2 || UART_2_NRF_HW_ASYNC_TIMER = 2 config NRFX_TIMER3 default y depends on UART_0_NRF_HW_ASYNC_TIMER = 3 || UART_1_NRF_HW_ASYNC_TIMER = 3 || \ UART_3_NRF_HW_ASYNC_TIMER = 3 || UART_2_NRF_HW_ASYNC_TIMER = 3 config NRFX_TIMER4 default y depends on UART_0_NRF_HW_ASYNC_TIMER = 4 || UART_1_NRF_HW_ASYNC_TIMER = 4 || \ UART_3_NRF_HW_ASYNC_TIMER = 4 || UART_2_NRF_HW_ASYNC_TIMER = 4 if UART_0_NRF_HW_ASYNC || UART_1_NRF_HW_ASYNC || UART_2_NRF_HW_ASYNC || UART_3_NRF_HW_ASYNC config NRFX_TIMER default y config NRFX_PPI depends on HAS_HW_NRF_PPI default y config NRFX_DPPI depends on HAS_HW_NRF_DPPIC default y config UARTE_NRF_HW_ASYNC bool default y endif config NRF_UART_PERIPHERAL bool config NRF_UARTE_PERIPHERAL bool endif # UART_NRFX