96 lines
2.3 KiB
Plaintext
96 lines
2.3 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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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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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_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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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_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 Zerø-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.
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endif # if ADC_PGA11X
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endif # ADC
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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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select SPI
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endif # DAC
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