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Add an optional weighted average filter to the ADC readings in the NXP Kinetis temperature sensor driver as recommended in NXP AN3031. Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
38 lines
945 B
Plaintext
38 lines
945 B
Plaintext
# NXP Kinetis temperature sensor configuration options
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# Copyright (c) 2020 Vestas Wind Systems A/S
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# SPDX-License-Identifier: Apache-2.0
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config TEMP_KINETIS
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bool "NXP Kinetis Temperature Sensor"
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depends on (ADC && SOC_FAMILY_KINETIS)
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help
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Enable driver for NXP Kinetis temperature sensor.
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if TEMP_KINETIS
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config TEMP_KINETIS_RESOLUTION
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int "ADC resolution"
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default 16 if HAS_MCUX_ADC16
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default 12 if HAS_MCUX_ADC12
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help
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ADC resolution to use for the temperature sensor and bandgap
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voltage readings.
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config TEMP_KINETIS_OVERSAMPLING
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int "ADC oversampling"
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default 0
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range 0 5
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help
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ADC oversampling to use for the temperature sensor and
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bandgap voltage readings. Oversampling can help in providing
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more stable readings.
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config TEMP_KINETIS_FILTER
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bool "Enable digital filtering of ADC readings"
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help
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Enable weighted average digital filtering of the ADC
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readings as per NXP AN3031.
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endif # TEMP_KINETIS
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