122 lines
3.5 KiB
Plaintext
122 lines
3.5 KiB
Plaintext
# Kconfig - nrfx I2C support
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#
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# Copyright (c) 2018, Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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menuconfig I2C_NRFX
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bool "nRF TWI nrfx drivers"
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default y
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depends on SOC_FAMILY_NRF
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select HAS_DTS_I2C
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help
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Enable support for nrfx TWI drivers for nRF MCU series.
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Peripherals with the same instance ID cannot be used together,
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e.g. I2C_0 and SPI_0. You may need to disable SPI_0 or SPI_1.
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if I2C_NRFX
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# In most Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series this limitation concerns UART peripherals as well).
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# In nRF52810 though, there are only single instances of these peripherals
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# and they are arranged in a different way, so this limitation does not apply.
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if I2C_0 && (SOC_NRF52810 || \
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(!SPI_0 && !(SOC_SERIES_NRF91X && UART_0_NRF_UARTE)))
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choice I2C_0_NRF_TYPE
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prompt "I2C Port 0 Driver type"
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config I2C_0_NRF_TWI
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bool "nRF TWI 0"
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depends on HAS_HW_NRF_TWI0
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select NRFX_TWI
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help
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Enable nRF TWI Master without EasyDMA on port 0.
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config I2C_0_NRF_TWIM
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bool "nRF TWIM 0"
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depends on HAS_HW_NRF_TWIM0
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 0.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_0 && (SOC_NRF52810 || ...
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# In Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series this limitation concerns UART peripherals as well).
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if I2C_1 && !SPI_1 && !(SOC_SERIES_NRF91X && UART_1_NRF_UARTE)
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choice I2C_1_NRF_TYPE
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prompt "I2C Port 1 Driver type"
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config I2C_1_NRF_TWI
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bool "nRF TWI 1"
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depends on HAS_HW_NRF_TWI1
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select NRFX_TWI
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help
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Enable nRF TWI Master without EasyDMA on port 1.
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config I2C_1_NRF_TWIM
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bool "nRF TWIM 1"
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depends on HAS_HW_NRF_TWIM1
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 1.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_1 && !SPI_1 && !(SOC_SERIES_NRF91X && UART_1_NRF_UARTE)
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# In Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series this limitation concerns UART peripherals as well).
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if I2C_2 && !SPI_2 && !(SOC_SERIES_NRF91X && UART_2_NRF_UARTE)
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choice I2C_2_NRF_TYPE
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prompt "I2C Port 2 Driver type"
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config I2C_2_NRF_TWIM
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bool "nRF TWIM 2"
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depends on HAS_HW_NRF_TWIM2
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 2.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_2 && !SPI_2 && !(SOC_SERIES_NRF91X && UART_2_NRF_UARTE)
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# In Nordic SoCs, SPI and TWI peripherals with the same instance number
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# share certain resources and therefore cannot be used at the same time
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# (in nRF91 Series SoCs this limitation concerns UART peripherals as well).
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if I2C_3 && !SPI_3 && !(SOC_SERIES_NRF91X && UART_3_NRF_UARTE)
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choice I2C_3_NRF_TYPE
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prompt "I2C Port 3 Driver type"
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config I2C_3_NRF_TWIM
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bool "nRF TWIM 3"
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depends on HAS_HW_NRF_TWIM3
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select NRFX_TWIM
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help
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Enable nRF TWI Master with EasyDMA on port 3.
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This peripheral accepts transfers from RAM only,
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if provided buffer is placed in flash, transfer will fail.
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endchoice
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endif # I2C_3 && !SPI_3 && !(SOC_SERIES_NRF91X && UART_3_NRF_UARTE)
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endif #I2C_NRFX
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