212 lines
5.2 KiB
Plaintext
212 lines
5.2 KiB
Plaintext
# Copyright (c) 2017 - 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 SPI_NRFX
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bool "nRF SPI nrfx drivers"
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default y
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depends on SOC_FAMILY_NRF
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help
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Enable support for nrfx SPI 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. SPI_0 and I2C_0. You may need to disable I2C_0 or I2C_1.
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if SPI_NRFX
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# In most Nordic SoCs the SPI and TWI peripherals with the same instance
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# number share certain resources and cannot be used at the same time.
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# In nRF52810 there are only single instances of these peripherals and
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# they are arranged in a different way so this limitation does not apply.
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if SPI_0 && (!I2C_0 || SOC_NRF52810)
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choice
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prompt "SPI Port 0 Driver type"
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config SPI_0_NRF_SPI
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bool "nRF SPI 0"
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depends on HAS_HW_NRF_SPI0
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select NRFX_SPI
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help
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Enable nRF SPI Master without EasyDMA on port 0.
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config SPI_0_NRF_SPIM
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bool "nRF SPIM 0"
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# This driver is not available for nRF52832 because of the anomaly 58
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# (SPIM: An additional byte is clocked out when RXD.MAXCNT = 1).
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depends on HAS_HW_NRF_SPIM0 && !SOC_NRF52832
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select NRFX_SPIM
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help
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Enable nRF SPI Master with EasyDMA on port 0.
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config SPI_0_NRF_SPIS
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bool "nRF SPIS 0"
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depends on HAS_HW_NRF_SPIS0
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depends on SPI_SLAVE
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select NRFX_SPIS
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help
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Enable nRF SPI Slave with EasyDMA on port 0.
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Due to hardware limitations the implementation supports only simple
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buffers (consisting of one part) located in RAM.
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endchoice
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if SPI_0_NRF_SPI || SPI_0_NRF_SPIM || SPI_0_NRF_SPIS
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config SPI_0_NRF_ORC
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hex "Over-read Character"
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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endif # SPI_0_NRF_SPI || SPI_0_NRF_SPIM || SPI_0_NRF_SPIS
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endif # SPI_0 && (!I2C_0 || SOC_NRF52810)
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# Nordic TWIx1 and SPIx1 instances can not be used at the same time.
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if SPI_1 && !I2C_1
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choice
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prompt "SPI Port 1 Driver type"
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config SPI_1_NRF_SPI
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bool "nRF SPI 1"
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depends on HAS_HW_NRF_SPI1
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select NRFX_SPI
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help
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Enable nRF SPI Master without EasyDMA on port 1.
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config SPI_1_NRF_SPIM
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bool "nRF SPIM 1"
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# This driver is not available for nRF52832 because of the anomaly 58
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# (SPIM: An additional byte is clocked out when RXD.MAXCNT = 1).
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depends on HAS_HW_NRF_SPIM1 && !SOC_NRF52832
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select NRFX_SPIM
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help
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Enable nRF SPI Master with EasyDMA on port 1.
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config SPI_1_NRF_SPIS
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bool "nRF SPIS 1"
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depends on HAS_HW_NRF_SPIS1
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depends on SPI_SLAVE
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select NRFX_SPIS
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help
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Enable nRF SPI Slave with EasyDMA on port 1.
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Due to hardware limitations the implementation supports only simple
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buffers (consisting of one part) located in RAM.
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endchoice
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if SPI_1_NRF_SPI || SPI_1_NRF_SPIM || SPI_1_NRF_SPIS
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config SPI_1_NRF_ORC
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hex "Over-read Character"
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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endif # SPI_1_NRF_SPI || SPI_1_NRF_SPIM || SPI_1_NRF_SPIS
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endif # SPI_1 && !I2C_1
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if SPI_2
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choice
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prompt "SPI Port 2 Driver type"
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config SPI_2_NRF_SPI
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bool "nRF SPI 2"
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depends on HAS_HW_NRF_SPI2
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select NRFX_SPI
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help
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Enable nRF SPI Master without EasyDMA on port 2.
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config SPI_2_NRF_SPIM
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bool "nRF SPIM 2"
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# This driver is not available for nRF52832 because of the anomaly 58
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# (SPIM: An additional byte is clocked out when RXD.MAXCNT = 1).
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depends on HAS_HW_NRF_SPIM2 && !SOC_NRF52832
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select NRFX_SPIM
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help
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Enable nRF SPI Master with EasyDMA on port 2.
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config SPI_2_NRF_SPIS
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bool "nRF SPIS 2"
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depends on HAS_HW_NRF_SPIS2
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depends on SPI_SLAVE
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select NRFX_SPIS
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help
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Enable nRF SPI Slave with EasyDMA on port 2.
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Due to hardware limitations the implementation supports only simple
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buffers (consisting of one part) located in RAM.
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endchoice
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if SPI_2_NRF_SPI || SPI_2_NRF_SPIM || SPI_2_NRF_SPIS
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config SPI_2_NRF_ORC
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hex "Over-read Character"
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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endif # SPI_2_NRF_SPI || SPI_2_NRF_SPIM || SPI_2_NRF_SPIS
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endif # SPI_2
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if SPI_3
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config SPI_3_NRF_SPIM
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bool
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depends on HAS_HW_NRF_SPIM3
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select NRFX_SPIM
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default y
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if SPI_3_NRF_SPIM
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config SPI_3_NRF_ORC
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hex "Over-read Character"
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range 0x00 0xff
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default 0xff
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help
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Over-read character. Character clocked out after an over-read
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of the transmit buffer.
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config SPI_3_NRF_RX_DELAY
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int "MISO sampling delay"
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range 0 7
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default 2
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help
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Number of 64 MHz clock cycles (15.625 ns) delay from the sampling
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edge of SCK (leading or trailing, depending on the CPHA setting used)
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until the input serial data on MISO is actually sampled.
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endif # SPI_3_NRF_SPIM
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endif # SPI_3
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if NRFX_SPIM
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config SPI_NRFX_RAM_BUFFER_SIZE
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int "Size of RAM buffer"
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default 0
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help
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SPIM peripherals cannot transmit data directly from flash. Therefore,
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a buffer in RAM needs to be provided for each instance of SPI driver
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using SPIM peripheral, so that the driver can copy there a chunk of
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data from flash and transmit it.
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The size is specified in bytes. A size of 0 means that this feature
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should be disabled, and the application must then take care of not
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supplying buffers located in flash to the driver, otherwise such
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transfers will fail.
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endif # NRFX_SPIM
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endif # SPI_NRFX
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