322 lines
7.6 KiB
Plaintext
322 lines
7.6 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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menuconfig ANALOG
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bool "Analog Device(ADC/DAC) Support"
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default n
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---help---
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This directory holds implementations of analog device drivers.
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This includes drivers for Analog to Digital Conversion (ADC) as
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well as drivers for Digital to Analog Conversion (DAC).
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See include/nuttx/analog/*.h for registration information.
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if ANALOG
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config ADC
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bool "Analog-to-Digital Conversion"
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default n
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---help---
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Select to enable support for analog input device support. This includes
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not only Analog-to-Digital Converters (ADC) but also amplifiers and
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analog multiplexers.
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This selection enables:
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- The upper half, device-independent ADC character driver, and
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- Selection of common lower half ADC drivers.
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MCU-specific, lower half drivers may be selected independently of
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CONFIG_ADC. However, if CONFIG_ADC is selected, then it is assume
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that lower half ADC drivers will be used only with the common ADC
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upper half driver.
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if ADC
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config ADC_FIFOSIZE
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int "ADC buffer size"
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default 8
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---help---
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This variable defines the size of the ADC ring buffer that is used
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to queue received ADC data until they can be retrieved by the
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application by reading from the ADC character device. NOTE: Since
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this is a ring buffer, the actual number of bytes that can be
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retained in buffer is (ADC_FIFOSIZE - 1).
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config ADC_NPOLLWAITERS
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int "Number of poll waiters"
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default 2
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---help---
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Maximum number of threads that can be waiting on poll.
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config ADC_ADS1242
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bool "TI ADS1242 support"
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default n
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select SPI
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---help---
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Enable driver support for the ADS1242 24-Bit SPI powered ADC.
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This driver supports reading the ADC conversion result as well as
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configuring the ADC, setting the input channel, etc. is implemented
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via ioctl calls. However, it does not yet implement the standard ADC
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interface.
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config ADC_ADS125X
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bool "TI ADS1255/ADS1256 support"
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default n
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select SPI
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select SCHED_HPWORK
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depends on ALLOW_BSD_COMPONENTS
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if ADC_ADS125X
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config ADS1255_FREQUENCY
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int "ADS1255/ADS1256 SPI frequency"
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default 1000000
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endif # ADC_ADS125X
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config ADC_LTC1867L
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bool "LTC 1863L/1867L support"
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default n
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select SPI
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---help---
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Enable driver support for the LTC 1863L (12 bit) and LTC 1867L (16 bit) SPI powered ADC.
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Note that the ADC conversion is started via the ANIOC_TRIGGER iotcl.
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if ADC_LTC1867L
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config LTC1867L_FREQUENCY
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int "LTC 1863L/1867L SPI frequency"
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default 1000000
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---help---
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LTC 1863L/1867L SPI frequency. Maximum is 20 MHz.
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endif # ADC_LTC1867L
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config ADC_PGA11X
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bool "TI PGA112/3/6/7 support"
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default n
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select SPI
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---help---
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Enables support for the PGA112, PGA113, PGA116, PGA117 Zero-Drift
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PROGRAMMABLE GAIN AMPLIFIER with MUX
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if ADC_PGA11X
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config PGA11X_SPIFREQUENCY
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int "TI PGA112/3/6/7 SPI frequency"
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default 1000000
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---help---
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PGA11x SPI frequency.
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config PGA11X_SPIMODE
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int "TI PGA112/3/6/7 SPI mode"
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default 0
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---help---
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PGA11x SPI mode. The specification says that the device operates in Mode 0 or
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Mode 3. But sometimes you need to tinker with this to get things to work
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correctly. Default: Mode 0
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config PGA11X_DAISYCHAIN
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bool "TI PGA112/3/6/7 daisy chain mode"
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default n
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---help---
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Enable support to use two PGA116/7's in Daisy Chain configuration.
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config PGA11X_MULTIPLE
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bool "Multiple TI PGA112/3/6/7 support"
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default n
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depends on !PGA11X_DAISYCHAIN
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---help---
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Can be defined to support multiple PGA11X devices on board with separate
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chip selects (not daisy chained). Each device will require a customized
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SPI interface to distinguish them when SPI_SELECT is called with
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devid=SPIDEV_MUX(n).
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endif # if ADC_PGA11X
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config ADC_ADS7828
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bool "TI ADS7828 support"
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default n
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select I2C
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---help---
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Enable driver support for the ADS7828 12-Bit I2C powered ADC.
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This driver supports reading single or multiple ADC conversion result
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as well as onfiguring the ADC, via ioctl calls.
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if ADC_ADS7828
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config ADS7828_FREQUENCY
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int "TI ADS7828 I2C frequency"
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default 100000
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---help---
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ADS7828 supports standard, fast, and high-speed I2C modes.
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endif # ADC_ADS7828
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config ADC_MAX1161X
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bool "Maxim MAX11612-11617 support"
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default n
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select I2C
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---help---
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Enable driver support for the MAX1161X 12-Bit I2C powered ADC Family.
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This driver supports reading single or multiple ADC conversion result
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as well as onfiguring the ADC, via ioctl calls.
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if ADC_MAX1161X
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config MAX1161X_FREQUENCY
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int "Maxim MAX1161X I2C frequency"
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default 100000
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---help---
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MAX1161X supports standard, fast, and high-speed I2C modes.
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choice
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prompt "Maxim MAX1161X Chip Type"
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config MAX1161X_4CHAN
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bool "MAX11612/MAX11613 4 Channels"
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config MAX1161X_8CHAN
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bool "MAX11614/MAX11615 8 Channels"
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config MAX1161X_12CHAN
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bool "MAX11616/MAX11617 12 Channels"
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endchoice
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endif # ADC_MAX1161X
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config ADC_HX711
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bool "Avia Semiconductor HX711 support"
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default n
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---help---
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Enable driver to support Avia Semiconductor HX711 ADC
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designed for weight scales.
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Driver supports both 'a' and 'b' channels with 32, 64
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and 128 gain.
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Driver does not support continuous read and is not buffered.
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Driver uses interrupts to not hog the CPU while waiting
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for hx711 to be ready.
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if ADC_HX711
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config ADC_HA711_ADD_DELAY
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bool "Add 1us delay between clock pulses"
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default y if BOARD_LOOPSPERMSEC >= 15000
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---help---
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HX711 requires about 1us between clock pulses to work.
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This is not an issue on slower chips, but faster chips
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will most likely try to clock HX711 too fast, which
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will result in data lose.
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If this is enabled, code will insert 1us of delay to each
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clock change. Enable this only if you get data lose, or
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else you will just introduce unnecessary delay to your
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program.
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Best way to know if you need this, is to compile
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HX711 demo program and run it. If there are no errors
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reported during runtime, you can turn this of. If you
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see communication errors, then you should enable this.
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endif # ADC_HX711
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endif # ADC
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config COMP
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bool "Analog Comparator"
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default n
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---help---
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Select to enable support for Analog Comparators (COMPs).
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config DAC
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bool "Digital-to-Analog Conversion"
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default n
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---help---
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Select to enable support for Digital-to-Analog Converters (DACs).
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if DAC
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config DAC_AD5410
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bool "AD5410 support"
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default n
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depends on ALLOW_BSD_COMPONENTS
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select SPI
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config DAC7571
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bool "DAC7571 support"
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default n
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select I2C
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---help---
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Enable driver support for the Texas Instruments DAC7571 dac.
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config DAC7571_I2C_FREQUENCY
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int "DAC7571 I2C frequency"
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default 400000
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depends on DAC7571
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config DAC7554
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bool "DAC7554 support"
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default n
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select SPI
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---help---
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Enable driver support for the Texas Instruments DAC7554 dac.
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config MCP48XX
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bool "MCP4802/4812/4822 support"
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default n
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select SPI
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---help---
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Enable driver support for the Microchip MCP4802/4812/4822 dac.
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choice
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prompt "MCP48XX variant"
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default MCP4802
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depends on MCP48XX
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config MCP4802
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bool "MCP4802 (8-bit) dac"
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config MCP4812
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bool "MCP4812 (10-bit) dac"
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config MCP4822
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bool "MCP4822 (12-bit) dac"
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endchoice # MCP48XX variant
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config MCP48XX_SPI_FREQUENCY
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int "MCP48XX SPI frequency"
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default 4000000
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depends on MCP48XX
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endif # DAC
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config OPAMP
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bool "Operational Amplifier"
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default n
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---help---
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Select to enable support for Operational Amplifiers (OPAMPs).
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config LMP92001
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bool "LMP92001 support"
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default n
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select I2C
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---help---
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Enable driver support for the Texas Instruments LMP92001.
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config LMP92001_I2C_FREQUENCY
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int "LMP92001 I2C frequency"
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default 400000
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depends on LMP92001
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endif # ANALOG
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