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# Copyright (c) 2017 - 2018, Nordic Semiconductor ASA
#
# SPDX-License-Identifier: Apache-2.0
#
menuconfig SPI_NRFX
bool "nRF SPI nrfx drivers"
default y
depends on SOC_FAMILY_NRF
help
Enable support for nrfx SPI drivers for nRF MCU series.
Peripherals with the same instance ID cannot be used together,
e.g. SPI_0 and I2C_0. You may need to disable I2C_0 or I2C_1.
if SPI_NRFX
config SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58
depends on SOC_NRF52832
bool "Allow enabling the SPIM driver despite PAN 58"
help
Allow enabling the nRF SPI Master with EasyDMA, despite
Product Anomaly Notice 58 (SPIM: An additional byte is
clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1).
Without this override, the SPI Master is only available
without EasyDMA. Note that the 'SPIM' and 'SPIS' drivers
use EasyDMA, while the 'SPI' driver does not. Use this
option ONLY if you are certain that transactions with
RXD.MAXCNT == 1 and TXD.MAXCNT <= 1 will NOT be executed.
# In most Nordic SoCs, SPI and TWI peripherals with the same instance number
# share certain resources and therefore cannot be used at the same time
# (in nRF91 Series this limitation concerns UART peripherals as well).
# In nRF52810 though, there are only single instances of these peripherals
# and they are arranged in a different way, so this limitation does not apply.
if SPI_0 && (SOC_NRF52810 || \
(!I2C_0 && !(SOC_SERIES_NRF91X && UART_0_NRF_UARTE)))
choice
prompt "SPI Port 0 Driver type"
config SPI_0_NRF_SPI
bool "nRF SPI 0"
depends on HAS_HW_NRF_SPI0
select NRFX_SPI
help
Enable nRF SPI Master without EasyDMA on port 0.
config SPI_0_NRF_SPIM
bool "nRF SPIM 0"
# This driver is not available for nRF52832 because of Product Anomaly 58
# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
depends on HAS_HW_NRF_SPIM0 && (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
select NRFX_SPIM
help
Enable nRF SPI Master with EasyDMA on port 0.
config SPI_0_NRF_SPIS
bool "nRF SPIS 0"
depends on HAS_HW_NRF_SPIS0
depends on SPI_SLAVE
select NRFX_SPIS
help
Enable nRF SPI Slave with EasyDMA on port 0.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
endchoice
if SPI_0_NRF_SPI || SPI_0_NRF_SPIM || SPI_0_NRF_SPIS
config SPI_0_NRF_ORC
hex "SPI Port 0 over-read character"
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
endif # SPI_0_NRF_SPI || SPI_0_NRF_SPIM || SPI_0_NRF_SPIS
endif # SPI_0 && (SOC_NRF52810 || ...
# In Nordic SoCs, SPI and TWI peripherals with the same instance number
# share certain resources and therefore cannot be used at the same time
# (in nRF91 Series this limitation concerns UART peripherals as well).
if SPI_1 && !I2C_1 && !(SOC_SERIES_NRF91X && UART_1_NRF_UARTE)
choice
prompt "SPI Port 1 Driver type"
config SPI_1_NRF_SPI
bool "nRF SPI 1"
depends on HAS_HW_NRF_SPI1
select NRFX_SPI
help
Enable nRF SPI Master without EasyDMA on port 1.
config SPI_1_NRF_SPIM
bool "nRF SPIM 1"
# This driver is not available for nRF52832 because of Product Anomaly 58
# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
depends on HAS_HW_NRF_SPIM1 && (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
select NRFX_SPIM
help
Enable nRF SPI Master with EasyDMA on port 1.
config SPI_1_NRF_SPIS
bool "nRF SPIS 1"
depends on HAS_HW_NRF_SPIS1
depends on SPI_SLAVE
select NRFX_SPIS
help
Enable nRF SPI Slave with EasyDMA on port 1.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
endchoice
if SPI_1_NRF_SPI || SPI_1_NRF_SPIM || SPI_1_NRF_SPIS
config SPI_1_NRF_ORC
hex "SPI Port 1 over-read character"
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
endif # SPI_1_NRF_SPI || SPI_1_NRF_SPIM || SPI_1_NRF_SPIS
endif # SPI_1 && !I2C_1 && !(SOC_SERIES_NRF91X && UART_1_NRF_UARTE)
# In Nordic SoCs, SPI and TWI peripherals with the same instance number
# share certain resources and therefore cannot be used at the same time
# (in nRF91 Series this limitation concerns UART peripherals as well).
if SPI_2 && !I2C_2 && !(SOC_SERIES_NRF91X && UART_2_NRF_UARTE)
choice
prompt "SPI Port 2 Driver type"
config SPI_2_NRF_SPI
bool "nRF SPI 2"
depends on HAS_HW_NRF_SPI2
select NRFX_SPI
help
Enable nRF SPI Master without EasyDMA on port 2.
config SPI_2_NRF_SPIM
bool "nRF SPIM 2"
# This driver is not available for nRF52832 because of Product Anomaly 58
# (SPIM: An additional byte is clocked out when RXD.MAXCNT == 1 and TXD.MAXCNT <= 1)
# Allow the 'EasyDMA' driver only if this automatic safety-disable is overridden
depends on HAS_HW_NRF_SPIM2 && (!SOC_NRF52832 || SOC_NRF52832_ALLOW_SPIM_DESPITE_PAN_58)
select NRFX_SPIM
help
Enable nRF SPI Master with EasyDMA on port 2.
config SPI_2_NRF_SPIS
bool "nRF SPIS 2"
depends on HAS_HW_NRF_SPIS2
depends on SPI_SLAVE
select NRFX_SPIS
help
Enable nRF SPI Slave with EasyDMA on port 2.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
endchoice
if SPI_2_NRF_SPI || SPI_2_NRF_SPIM || SPI_2_NRF_SPIS
config SPI_2_NRF_ORC
hex "SPI Port 2 over-read character"
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
endif # SPI_2_NRF_SPI || SPI_2_NRF_SPIM || SPI_2_NRF_SPIS
endif # SPI_2 && !I2C_2 && !(SOC_SERIES_NRF91X && UART_2_NRF_UARTE)
# In Nordic SoCs, SPI and TWI peripherals with the same instance number
# share certain resources and therefore cannot be used at the same time
# (in nRF91 Series this limitation concerns UART peripherals as well).
if SPI_3 && !I2C_3 && !(SOC_SERIES_NRF91X && UART_3_NRF_UARTE)
choice
prompt "SPI Port 3 Driver type"
config SPI_3_NRF_SPIM
bool "nRF SPIM 3"
depends on HAS_HW_NRF_SPIM3
select NRFX_SPIM
help
Enable nRF SPI Master with EasyDMA on port 3.
config SPI_3_NRF_SPIS
bool "nRF SPIS 3"
depends on HAS_HW_NRF_SPIS3
depends on SPI_SLAVE
select NRFX_SPIS
help
Enable nRF SPI Slave with EasyDMA on port 3.
Due to hardware limitations the implementation supports only simple
buffers (consisting of one part) located in RAM.
endchoice
if SPI_3_NRF_SPIM || SPI_3_NRF_SPIS
config SPI_3_NRF_ORC
hex "SPI Port 3 over-read character"
range 0x00 0xff
default 0xff
help
Over-read character. Character clocked out after an over-read
of the transmit buffer.
endif # SPI_3_NRF_SPIM || SPI_3_NRF_SPIS
config SPI_3_NRF_RX_DELAY
int "SPIM3 MISO sampling delay"
depends on SPI_3_NRF_SPIM && SOC_NRF52840
range 0 7
default 2
help
Number of 64 MHz clock cycles (15.625 ns) delay from the sampling
edge of SCK (leading or trailing, depending on the CPHA setting used)
until the input serial data on MISO is actually sampled.
endif # SPI_3 && !I2C_3 && !(SOC_SERIES_NRF91X && UART_3_NRF_UARTE)
if NRFX_SPIM
config SPI_NRFX_RAM_BUFFER_SIZE
int "Size of RAM buffers for SPIM peripherals"
default 0
help
SPIM peripherals cannot transmit data directly from flash. Therefore,
a buffer in RAM needs to be provided for each instance of SPI driver
using SPIM peripheral, so that the driver can copy there a chunk of
data from flash and transmit it.
The size is specified in bytes. A size of 0 means that this feature
should be disabled, and the application must then take care of not
supplying buffers located in flash to the driver, otherwise such
transfers will fail.
choice
prompt "nRF SPIM MISO pin pull configuration"
default SPI_NRFX_SPIM_MISO_PULL_DOWN
config SPI_NRFX_SPIM_MISO_NO_PULL
bool "no pull"
help
Disable MISO pin pull.
config SPI_NRFX_SPIM_MISO_PULL_DOWN
bool "pull down"
help
Enable MISO pin pull down.
config SPI_NRFX_SPIM_MISO_PULL_UP
bool "pull up"
help
Enable MISO pin pull up.
endchoice
endif # NRFX_SPIM
if NRFX_SPI
choice
prompt "nRF SPI MISO pin pull configuration"
default SPI_NRFX_SPI_MISO_PULL_DOWN
config SPI_NRFX_SPI_MISO_NO_PULL
bool "no pull"
help
Disable MISO pin pull.
config SPI_NRFX_SPI_MISO_PULL_DOWN
bool "pull down"
help
Enable MISO pin pull down.
config SPI_NRFX_SPI_MISO_PULL_UP
bool "pull up"
help
Enable MISO pin pull up.
endchoice
endif # NRFX_SPI
endif # SPI_NRFX