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Kconfig
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
comment "nRF52 Configuration Options"
choice
prompt "nRF52 Chip Selection"
default ARCH_CHIP_NRF52832
depends on ARCH_CHIP_NRF52
config ARCH_CHIP_NRF52832
bool "nRF52832"
select ARCH_FAMILY_NRF52
select NRF52_MEM_FLASH_512
select NRF52_MEM_RAM_64
select NRF52_HAVE_BPROT
config ARCH_CHIP_NRF52833
bool "nRF52832"
select ARCH_FAMILY_NRF52
select NRF52_MEM_FLASH_512
select NRF52_MEM_RAM_128
select NRF52_HAVE_ACL
select NRF52_HAVE_UART1
select NRF52_HAVE_PORT1
select NRF52_HAVE_SPI3_MASTER
select NRF52_HAVE_USBDEV
select NRF52_HAVE_PWM3
config ARCH_CHIP_NRF52840
bool "nRF52840"
select ARCH_FAMILY_NRF52
select NRF52_MEM_FLASH_1024
select NRF52_MEM_RAM_256
select NRF52_HAVE_ACL
select NRF52_HAVE_UART1
select NRF52_HAVE_PORT1
select NRF52_HAVE_SPI3_MASTER
select NRF52_HAVE_QSPI
select NRF52_HAVE_USBDEV
select NRF52_HAVE_PWM3
select NRF52_HAVE_CRYPTOCELL
select NRF52_HAVE_IEEE802154
select NRF52_HAVE_BLELR
endchoice # NRF52 Chip Selection
# NRF52 Families
config ARCH_FAMILY_NRF52
bool
default n
# RAM size
config NRF52_MEM_RAM_32
bool
default n
config NRF52_MEM_RAM_64
bool
default n
config NRF52_MEM_RAM_128
bool
default n
config NRF52_MEM_RAM_256
bool
default n
config NRF52_MEM_RAM_SIZE
hex
default 0x008000 if NRF52_MEM_RAM_32
default 0x010000 if NRF52_MEM_RAM_64
default 0x020000 if NRF52_MEM_RAM_128
default 0x040000 if NRF52_MEM_RAM_256
# FLASH size
config NRF52_MEM_FLASH_256
bool
default n
config NRF52_MEM_FLASH_512
bool
default n
config NRF52_MEM_FLASH_1024
bool
default n
config NRF52_MEM_FLASH_SIZE
hex
default 0x040000 if NRF52_MEM_FLASH_256
default 0x080000 if NRF52_MEM_FLASH_512
default 0x100000 if NRF52_MEM_FLASH_1024
# Peripheral support
config NRF52_HAVE_BPROT
bool
default n
config NRF52_HAVE_ACL
bool
default n
config NRF52_HAVE_UART1
bool
default n
config NRF52_HAVE_PORT1
bool
default n
config NRF52_HAVE_SPI3_MASTER
bool
default n
config NRF52_HAVE_QSPI
bool
default n
config NRF52_HAVE_USBDEV
bool
default n
config NRF52_HAVE_PWM3
bool
default n
config NRF52_HAVE_CRYPTOCELL
bool
default n
config NRF52_HAVE_BLELE
bool
default n
config NRF52_HAVE_IEEE802154
bool
default n
# Peripheral Selection
config NRF52_I2C_MASTER
bool
default n
config NRF52_SPI_MASTER
bool
default n
config NRF52_UART
bool
default n
config NRF52_TIMER
bool
default n
config NRF52_PWM
bool
default n
config NRF52_RTC
bool
default n
menu "nRF52 Peripheral Selection"
config NRF52_I2C0_MASTER
bool "I2C0 Master"
default n
select NRF52_I2C_MASTER
config NRF52_I2C1_MASTER
bool "I2C1 Master"
default n
select NRF52_I2C_MASTER
config NRF52_SPI0_MASTER
bool "SPI0 Master"
default n
select NRF52_SPI_MASTER
config NRF52_SPI1_MASTER
bool "SPI1 Master"
default n
select NRF52_SPI_MASTER
config NRF52_SPI2_MASTER
bool "SPI2 Master"
default n
select NRF52_SPI_MASTER
config NRF52_SPI3_MASTER
bool "SPI3 Master"
default n
select NRF52_SPI_MASTER
depends on NRF52_HAVE_SPI3_MASTER
config NRF52_GPIOTE
bool "GPIOTE (GPIO interrupts)"
default n
config NRF52_UART0
bool "UART0"
default n
select UART0_SERIALDRIVER
select NRF52_UART
config NRF52_UART1
bool "UART1"
default n
depends on NRF52_HAVE_UART1
select UART1_SERIALDRIVER
select NRF52_UART
config NRF52_RNG
bool "Random Generator"
default n
select ARCH_HAVE_RNG
config NRF52_QSPI
bool "QSPI"
default n
depends on NRF52_HAVE_QSPI
config NRF52_WDT
bool "Watchdog (WDT)"
default n
select WATCHDOG
config NRF52_RADIO
bool "RADIO"
depends on EXPERIMENTAL
depends on !NRF52_SOFTDEVICE_CONTROLLER
default n
config NRF52_NFCT
bool "NFCT"
default n
config NRF52_SAADC
bool "SAADC"
default n
config NRF52_TIMER0
bool "TIMER0"
select NRF52_TIMER
depends on !NRF52_SOFTDEVICE_CONTROLLER
default n
config NRF52_TIMER1
bool "TIMER1"
select NRF52_TIMER
default n
config NRF52_TIMER2
bool "TIMER2"
select NRF52_TIMER
default n
config NRF52_TIMER3
bool "TIMER3"
select NRF52_TIMER
default n
config NRF52_TIMER4
bool "TIMER4"
select NRF52_TIMER
default n
config NRF52_PWM0
bool "PWM0"
select NRF52_PWM
default n
config NRF52_PWM1
bool "PWM1"
select NRF52_PWM
default n
config NRF52_PWM2
bool "PWM2"
select NRF52_PWM
default n
config NRF52_PWM3
bool "PWM3"
depends on NRF52_HAVE_PWM3
select NRF52_PWM
default n
config NRF52_PPI
bool "PPI"
default n
config NRF52_RTC0
bool "RTC0"
select NRF52_RTC
depends on !NRF52_SOFTDEVICE_CONTROLLER
default n
config NRF52_RTC1
bool "RTC1"
select NRF52_RTC
default n
config NRF52_RTC2
bool "RTC2"
select NRF52_RTC
default n
config NRF52_I2S
bool "I2S"
default n
config NRF52_USBDEV
bool "USB Device"
default n
depends on NRF52_HAVE_USBDEV
depends on NRF52_HFCLK_XTAL
select USBDEV
config NRF52_COMP
bool "COMP"
default n
endmenu # nRF52 Peripheral Selection
menu "Clock Configuration"
config NRF52_HFCLK_XTAL
bool "Enable HFCLK from external crystal"
default n
---help---
If the board includes an external high-frequency crystal, enable this
option to supply the HFCLK. If this option is disabled, the internal
oscillator will be used.
Note that the RADIO peripheral requires the HFCLK to be used.
config NRF52_USE_LFCLK
bool "Enable LFCLK"
default n
---help---
Enable low-frequency clock.
if NRF52_USE_LFCLK
choice
prompt "LFCLK source"
default NRF52_LFCLK_XTAL
config NRF52_LFCLK_XTAL
bool "External 32.768Khz crystal"
config NRF52_LFCLK_RC
bool "Internal RC oscillator"
config NRF52_LFCLK_SYNTH
bool "Synthesized from HFCLK"
endchoice # LFCLK source
endif # NRF52_USE_LFCLK
endmenu # Clock Configuration
menu "System Timer"
config NRF52_SYSTIMER
bool
default y
choice
prompt "System Timer Source"
default NRF52_SYSTIMER_SYSTICK
---help---
Choose which hardware resource will drive NuttX
system time
config NRF52_SYSTIMER_SYSTICK
bool "SysTick"
select TIMER_ARCH
select TIMER
select ARMV7M_SYSTICK
---help---
Use ARM SysTick. It can be used for tickless and
non-tickless mode.
NOTE: nRF52 implementation of WFE/WFI involves is
incompatible with SysTick. This means that if
you choose this option, WFE/WFI will not be used
in idle loop.
config NRF52_SYSTIMER_RTC
bool "RTC"
select NRF52_RTC
select SCHED_TICKLESS
select SCHED_TICKLESS_ALARM
select NRF52_USE_LFCLK
---help---
Use RTC timer in tickless mode.
endchoice # System Timer Source
if NRF52_SYSTIMER_RTC
config NRF52_SYSTIMER_RTC_INSTANCE
int "RTC timer instance"
default 0 if !NRF52_SOFTDEVICE_CONTROLLER
default 1 if NRF52_SOFTDEVICE_CONTROLLER
range 0 2
---help---
Which RTC instance to use to drive the system timer
endif # NRF52_SYSTIMER_RTC
endmenu # System Timer
config NRF52_DCDC
bool "Enable DC/DC regulator"
default n
---help---
This option enables the DC/DC regulator, which reduces
current consumption. This requires extra circuitry (inductors).
config NRF52_FLASH_PREFETCH
bool "Enable FLASH Pre-fetch"
default y
---help---
Enable FLASH prefetch
config NRF52_PROGMEM
bool "FLASH program memory"
depends on ALLOW_BSD_COMPONENTS
default n
select ARCH_HAVE_PROGMEM
---help---
Enable support FLASH interfaces as defined in include/nuttx/progmem.h
menu "GPIO Interrupt Configuration"
config NRF52_PER_PIN_INTERRUPTS
bool "Per-pin interrupt callbacks"
default !DEFAULT_SMALL
depends on NRF52_GPIOTE
---help---
The GPIOTE peripheral supports a limited number of channels which can
be set to EVENT mode and thus generate interrupts on pin state changes.
Another mechanism offered by the GPIO/GPIOTE peripherals is the PORT
event. This event is generated from a signal shared by all pins in
the GPIO port.
This option enables the ability to set per-pin callbacks that will
be invoked from the main GPIOTE ISR when a PORT event is generated.
As this involves extra storage to store each callback, this option can
be disabled to save space. In such case, it is possible to set a callback
for the whole PORT event directly.
endmenu # GPIO Interrupt Configuration
menu "PWM configuration"
if NRF52_PWM
config NRF52_PWM_MULTICHAN
bool "PWM Multiple Output Channels"
default n
if NRF52_PWM_MULTICHAN
if NRF52_PWM0
config NRF52_PWM0_CH0
bool "PWM0 Channel 0 Output"
default n
---help---
Enables channel 0 output.
config NRF52_PWM0_CH1
bool "PWM0 Channel 1 Output"
default n
---help---
Enables channel 1 output.
config NRF52_PWM0_CH2
bool "PWM0 Channel 2 Output"
default n
---help---
Enables channel 2 output.
config NRF52_PWM0_CH3
bool "PWM0 Channel 3 Output"
default n
---help---
Enables channel 3 output.
endif # NRF52_PWM0
if NRF52_PWM1
config NRF52_PWM1_CH0
bool "PWM1 Channel 0 Output"
default n
---help---
Enables channel 0 output.
config NRF52_PWM1_CH1
bool "PWM1 Channel 1 Output"
default n
---help---
Enables channel 1 output.
config NRF52_PWM1_CH2
bool "PWM1 Channel 2 Output"
default n
---help---
Enables channel 2 output.
config NRF52_PWM1_CH3
bool "PWM1 Channel 3 Output"
default n
---help---
Enables channel 3 output.
endif # NRF52_PWM1
if NRF52_PWM2
config NRF52_PWM2_CH0
bool "PWM2 Channel 0 Output"
default n
---help---
Enables channel 0 output.
config NRF52_PWM2_CH1
bool "PWM2 Channel 1 Output"
default n
---help---
Enables channel 1 output.
config NRF52_PWM2_CH2
bool "PWM2 Channel 2 Output"
default n
---help---
Enables channel 2 output.
config NRF52_PWM2_CH3
bool "PWM2 Channel 3 Output"
default n
---help---
Enables channel 3 output.
endif # NRF52_PWM2
if NRF52_PWM3
config NRF52_PWM3_CH0
bool "PWM3 Channel 0 Output"
default n
---help---
Enables channel 0 output.
config NRF52_PWM3_CH1
bool "PWM3 Channel 1 Output"
default n
---help---
Enables channel 1 output.
config NRF52_PWM3_CH2
bool "PWM3 Channel 2 Output"
default n
---help---
Enables channel 2 output.
config NRF52_PWM3_CH3
bool "PWM3 Channel 3 Output"
default n
---help---
Enables channel 3 output.
endif # NRF52_PWM3
endif # !NRF52_PWM_MULTICHAN
if !NRF52_PWM_MULTICHAN
config NRF52_PWM0_CHANNEL
int "PWM0 Output Channel"
depends on NRF52_PWM0
default 0
range 0 3
config NRF52_PWM1_CHANNEL
int "PWM1 Output Channel"
depends on NRF52_PWM1
default 0
range 0 3
config NRF52_PWM2_CHANNEL
int "PWM2 Output Channel"
depends on NRF52_PWM2
default 0
range 0 3
config NRF52_PWM3_CHANNEL
int "PWM3 Output Channel"
depends on NRF52_PWM3
default 0
range 0 3
endif # !NRF52_PWM_MULTICHAN
endif # NRF52_PWM
endmenu # PWM configuration
menu "RADIO Configuration"
if NRF52_RADIO
config NRF52_RADIO_CUSTOM
bool "RADIO uses custom IRQ handlers"
default n
config NRF52_RADIO_IEEE802154
bool "RADIO IEEE802.15.4 protocol"
default n
depends on NRF52_HAVE_IEEE802154
select ARMV7M_USEBASEPRI
select ARCH_RAMVECTORS
select ARCH_IRQPRIO
select NRF52_RADIO_CUSTOM
select NRF52_TIMER0
if NRF52_RADIO_IEEE802154
config NRF52_RADIO_IEEE802154_SUPERFRAME
bool "RADIO IEEE802.15.4 superframe support"
default n
select NRF52_RTC0
select NRF52_USE_LFCLK
config NRF52_RADIO_IEEE802154_GTS_SLOTS
int "RADIO IEEE802.15.4 GTS slots"
default 2
depends on NRF52_RADIO_IEEE802154_SUPERFRAME
config NRF52_RADIO_IEEE802154_TRACE
bool "RADIO IEEE802.15.4 trace support"
default n
config NRF52_RADIO_IEEE802154_TRACE_BUFSIZE
int "RADIO IEEE802.15.4 trace buffer size"
depends on NRF52_RADIO_IEEE802154_TRACE
default 1024
endif
endif #NRF52_RADIO
endmenu # "RADIO Configuration"
menu "SAADC Configuration"
if NRF52_SAADC
choice
prompt "SAADC trigger selection"
default NRF52_SAADC_TASK
---help---
Choose mode for sample rate control
config NRF52_SAADC_TASK
bool "SAADC Task trigger"
config NRF52_SAADC_TIMER
bool "SAADC Timer trigger"
endchoice # SAADC trigger selection
if NRF52_SAADC_TIMER
config NRF52_SAADC_TIMER_CC
int "SAADC Timer CC"
default 0
range 80 2047
endif # NRF52_SAADC_TIMER
config NRF52_SAADC_OVERSAMPLE
int "SAADC oversample"
default 0
range 0 8
---help---
SAADC oversample control
config NRF52_SAADC_RESOLUTION
int "SAADC resolution"
default 0
range 0 3
---help---
SAADC resolution 0 - 8 bits, 1 - 10 bits, 2 - 12 bits, 3 - 14 bits
config NRF52_SAADC_CHANNELS
int "SAADC channels"
default 8
range 0 8
---help---
SAADC channels
config NRF52_SAADC_LIMITS
bool "SAADC limits enable"
default n
---help---
SAADC limist enable
endif # NRF52_SAADC
endmenu # SAADC Configuration
menu "SPI Configuration"
if NRF52_SPI_MASTER
config NRF52_SPI_MASTER_INTERRUPTS
bool "SPI Master interrupts support"
default n
config NRF52_SPI_MASTER_WORKAROUND_1BYTE_TRANSFER
bool "Master 1 Byte transfer anomaly workaround"
depends on ARCH_CHIP_NRF52832
select NRF52_PPI
default y
---help---
Enable the workaround to fix SPI Master 1 byte transfer bug
which occurs in NRF52832 revision 1 and revision 2.
endif # NRF52_SPI_MASTER
endmenu
menu "I2C Master Configuration"
if NRF52_I2C_MASTER
config NRF52_I2C_MASTER_DISABLE_NOSTART
bool "Disable the I2C Master NOSTART flag support"
default n
---help---
To combine two i2c messages that are part of a
single transaction (NO_STOP-NO_START) the nrf52
hardware requires these be joined into a single
transfer. This can be expensive and some devices
can get away with multi-part transfers as separate
transfers. Enable this at your own risk!
config NRF52_I2C_MASTER_COPY_BUF_SIZE
int "Static buffer size for NOSTART flag support"
depends on !NRF52_I2C_MASTER_DISABLE_NOSTART
default 4
---help---
To combine two i2c messages that are part of a
single transaction (NO_STOP-NO_START) the nrf52
hardware requires these be joined into a single
transfer. This static buffer will be used if the
transaction will fit otherwise it will fall back
on malloc.
config NRF52_I2C_MASTER_WORKAROUND_400KBPS_TIMING
bool "Master 400Kbps timing anomaly workaround"
depends on ARCH_CHIP_NRF52840
default y
---help---
Enable the workaround to fix I2C Master 400Kbps timing bug
which occurs in all NRF52840 revisions to date.
endif # NRF52_I2C_MASTER
endmenu
menu "QSPI Configuration"
if NRF52_QSPI
config NRF52_QSPI_RXDELAY
int "QSPI RX delay"
default 2
range 0 7
---help---
The input serial data sampling delay.
endif # NRF52_QSPI
endmenu # QSPI Configuration
menu "USBDEV Configuration"
endmenu # USBDEV Configuration
menuconfig NRF52_SOFTDEVICE_CONTROLLER
bool "SoftDevice Controller"
depends on ALLOW_BSDNORDIC_COMPONENTS
select ARMV7M_USEBASEPRI
select ARCH_RAMVECTORS
select ARCH_IRQPRIO
select CRYPTO
select CRYPTO_RANDOM_POOL
select NRF52_USE_LFCLK
---help---
This enables use of Nordic SoftDevice controller
(SDC). It is a library version of a subset of
full SoftDevice, which only includes the BLE
controller implementation.
It makes use of RTC0, TIMER0 and RADIO so
these will be unavailable for direct use by user.
It also makes use of PPI channel range 17-31.
if NRF52_SOFTDEVICE_CONTROLLER
choice
prompt "BLE Controller role"
default NRF52_SDC_PERIPHERAL
config NRF52_SDC_PERIPHERAL
bool "BLE Peripheral role"
config NRF52_SDC_MULTIROLE
bool "BLE Multi role"
config NRF52_SDC_CENTRAL
bool "BLE Central role"
endchoice
config NRF52_SDC_CLOCK_ACCURACY
int "Clock Accuracy [PPM]"
default 250
---help---
Select the clock accuracy depending on the chosen low-frequency clock
source
config NRF52_SDC_PERIPHERAL_COUNT
int "Number of peripheral roles to support (also central)"
default 1 if !NRF52_SDC_CENTRAL
default 0 if NRF52_SDC_CENTRAL
---help---
This controls how many peripheral connections will be supported. It also
determines the number of central roles from the following:
CENTRAL_ROLES = CONFIG_BLUETOOTH_MAX_CONN - NRF52_SDC_PERIPHERAL_COUNT
or
CENTRAL_ROLES = NRF52_SDC_MAX_COUNT - NRF52_SDC_PERIPHERAL_COUNT
So by choosing these two variables you can control both capabilities.
config NRF52_SDC_MAX_COUNT
int "Maximum number of roles to support"
default 1
depends on !NET_BLUETOOTH
config NRF52_SDC_ADVERTISING
bool "Support advertising"
default y
depends on !NRF52_SDC_CENTRAL
config NRF52_SDC_SCANNING
bool "Support scanning"
default y
depends on !NRF52_SDC_PERIPHERAL
if NRF52_SDC_SCANNING
config NRF52_SDC_SCAN_BUFFER_COUNT
int "Scanning buffer count"
default 3
---help---
The minimum allowed number of buffers is 2.
endif
config NRF52_SDC_LE_2M_PHY
bool "Support LE 2M PHY"
default y
config NRF52_SDC_LE_CODED_PHY
bool "Support LE Coded PHY"
default ARCH_CHIP_NRF52840
depends on NRF52_SDC_MULTIROLE
config NRF52_SDC_DLE
bool "Support Data Length Extension (DLE)"
default y
config NRF52_BLE_TTY_NAME
string "BLE TTY device name"
default "/dev/ttyHCI0"
depends on UART_BTH4
config NRF52_SDC_FICR_STATIC_ADDR
bool "Configure factory generated static random address"
default n
config NRF52_SDC_PUB_ADDR
hex "Configure BT public address"
default 0x0000000000
endif