st,stm32c0-temp-cal
Vendor: STMicroelectronics N.V.
Note
An implementation of a driver matching this compatible is available in drivers/sensor/st/stm32_temp/stm32_temp.c.
Description
STM32 family TEMP node for production calibrated sensors with a single calibration temperature.
Properties
Node specific properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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Address of TS_CAL1 calibration parameter
This property is required. |
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Temperature at which TS_CAL1 has been measured (TS_CAL2_TEMP)
This property is required. |
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Analog voltage reference (Vref+) voltage with which
temperature sensor calibration parameters have been
measured
This property is required. |
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ADC resolution used for measuring calibration data
This is usually equal to the ADC's native resolution.
Most series have a 12-bit ADC, but 14-bit and 16-bit
also exists on e.g., STM32U5 and STM32H7 (16) series.
Default value: Legal values: |
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Average slope of T-V chart (in mV/°C), found in MCU datasheet
chapters "Electrical characteristics" or "Operating conditions"
This property is required. |
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Negative Temperature Coefficient
Set when the sensor's value is inversely proportional to temperature
(i.e., the sensor's value decreases as the temperature increases).
This is visible in the formula used for temperature calculation, which has the
form "Calibration_Value - ADC_Value" rather than "ADC_Value - Calibration_Value".
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Human readable string describing the sensor. It can be used to
distinguish multiple instances of the same model (e.g., lid accelerometer
vs. base accelerometer in a laptop) to a host operating system.
This property is defined in the Generic Sensor Property Usages of the HID
Usage Tables specification
(https://usb.org/sites/default/files/hut1_3_0.pdf, section 22.5).
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Deprecated node specific properties
Deprecated properties not inherited from the base binding file.
(None)
Base properties
Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “st,stm32c0-temp-cal” compatible.
Name |
Type |
Details |
|---|---|---|
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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register space
See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
This property is required. |
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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Property to identify that a device can be used as wake up source.
When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.
Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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