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# Copyright (c) 2023, deveritec GmbH
# SPDX-License-Identifier: Apache-2.0
description: |
Texas Instruments Low-Power Linear 3D Hall-Effect Sensor with an I2C interface.
See the specification for the default I2C address.
The specification of the sensor can be found at:
https://www.ti.com/lit/ds/symlink/tmag5273.pdf
https://www.ti.com/lit/ds/symlink/tmag3001.pdf
When setting the enum properties in a .dts or .dtsi file you may
include tmag5273.h and use the macros defined there.
Example:
#include <zephyr/dt-bindings/sensor/tmag5273.h>
tmag5273: tmag5273@0 {
...
axis = <TMAG5273_DT_AXIS_XYZ>;
range = <TMAG5273_DT_AXIS_RANGE_HIGH>;
};
compatible: "ti,tmag5273"
include: [sensor-device.yaml, i2c-device.yaml]
properties:
operation-mode:
type: int
default: 0
enum: [0, 1]
description: |
Sensor mode used if set to "active".
Defaults to continuous sampling (TMAG5273_DT_OPER_MODE_CONTINUOUS).
- 0 # TMAG5273_DT_OPER_MODE_CONTINUOUS (continuous)
- 1 # TMAG5273_DT_OPER_MODE_STANDBY (standby)
axis:
type: int
default: 7
enum: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
description: |
Magnet axis channel inputs.
Defaults to measure all axis (TMAG5273_DT_AXIS_XYZ).
- 0 # TMAG5273_DT_AXIS_NONE
- 1 # TMAG5273_DT_AXIS_X
- 2 # TMAG5273_DT_AXIS_Y
- 3 # TMAG5273_DT_AXIS_Z
- 4 # TMAG5273_DT_AXIS_XY
- 5 # TMAG5273_DT_AXIS_XZ
- 6 # TMAG5273_DT_AXIS_YZ
- 7 # TMAG5273_DT_AXIS_XYZ
- 8 # TMAG5273_DT_AXIS_XYX (pseudo-simultaneous sampling)
- 9 # TMAG5273_DT_AXIS_YXY (pseudo-simultaneous sampling)
- 10 # TMAG5273_DT_AXIS_YZY (pseudo-simultaneous sampling)
- 11 # TMAG5273_DT_AXIS_XZX (pseudo-simultaneous sampling)
temperature:
type: boolean
description: |
Select for temperature measurement.
range:
type: int
default: 1
enum: [0, 1, 2]
description: |
XYZ-measurement range for magnetic-field value.
Defaults to lower range (higher resolution; TMAG5273_DT_AXIS_RANGE_LOW).
- 0 # TMAG5273_DT_AXIS_RANGE_LOW (+/-40 mT (TMAG5273A1) or +/-133 mT (TMAG5273A2))
- 1 # TMAG5273_DT_AXIS_RANGE_HIGH (+/-80 mT (TMAG5273A1) or +/-266 mT (TMAG5273A2))
- 2 # TMAG5273_DT_AXIS_RANGE_RUNTIME (@runtime (initial value is: "high"))
int-gpios:
type: phandle-array
description: |
The INT signal connection.
The signal is active-low as produced by the sensor.
Either used for interrupt signaling, or triggering a conversion.
temperature-coefficient:
type: int
default: 0
enum: [0, 1, 2]
description: |
Selects the magnet temperature coefficient.
Defaults to none (TMAG5273_DT_TEMP_COEFF_NONE).
- 0 # TMAG5273_DT_TEMP_COEFF_NONE (none)
- 1 # TMAG5273_DT_TEMP_COEFF_NDBFE (0.12 %/deg C (NdBFe))
- 2 # TMAG5273_DT_TEMP_COEFF_CERAMIC (0.2 %/deg C (Ceramic))
Ignored if temperature is not measured.
trigger-conversion-via-int:
type: boolean
description: |
Selects initiation of a single conversion based on a trigger via
the INT-pin if enabled, and via I2C-command if disabled.
Used in "standby"-, "wakeup-and-sleep"- and "sleep"-mode.
Using I2C-conversion trigger may result in (handled) I2C-errors.
angle-magnitude-axis:
type: int
default: 0
enum: [0, 1, 2, 3, 4]
description: |
Enables angle calculation, magnetic gain, and offset corrections
between two selected magnetic channels.
Defaults to no additional calculations (TMAG5273_DT_ANGLE_MAG_NONE).
- 0 # TMAG5273_DT_ANGLE_MAG_NONE (deactivated)
- 1 # TMAG5273_DT_ANGLE_MAG_XY (x/y)
- 2 # TMAG5273_DT_ANGLE_MAG_YZ (y/z)
- 3 # TMAG5273_DT_ANGLE_MAG_XZ (x/z)
- 4 # TMAG5273_DT_ANGLE_MAG_RUNTIME (@runtime (initial value is: "deactivated"))
ch-mag-gain-correction:
type: int
default: 0
enum: [0, 1]
description: |
Channel for the magnitude gain correction.
Defaults to 1st channel.
- 0 # TMAG5273_DT_CORRECTION_CH_1 (1st channel)
- 1 # TMAG5273_DT_CORRECTION_CH_2 (2nd channel)
Only active if angle-magnitude-calculation is active.
average-mode:
type: int
default: 1
enum: [0, 1, 2, 3, 4, 5]
description: |
Enables additional sampling of the sensor data to reduce the noise effect
(or to increase resolution).
Note that averaging will influence the output data rate.
Defaults to 2x averaging (TMAG5273_DT_AVERAGING_2X).
- 0 # TMAG5273_DT_AVERAGING_NONE (10.0-kSPS (3-axes) or 20-kSPS (1 axis))
- 1 # TMAG5273_DT_AVERAGING_2X (5.7-kSPS (3-axes) or 13.3-kSPS (1 axis))
- 2 # TMAG5273_DT_AVERAGING_4X (3.1-kSPS (3-axes) or 8.0-kSPS (1 axis))
- 3 # TMAG5273_DT_AVERAGING_8X (1.6-kSPS (3-axes) or 4.4-kSPS (1 axis))
- 4 # TMAG5273_DT_AVERAGING_16X (0.8-kSPS (3-axes) or 2.4-kSPS (1 axis))
- 5 # TMAG5273_DT_AVERAGING_32X (0.4-kSPS (3-axes) or 1.2-kSPS (1 axis))
crc-enabled:
type: boolean
description: |
Activate I2C CRC byte to be sent.
low-noise:
type: boolean
description: |
Select low-noise mode when enabled, and low-power mode when disabled.
ignore-diag-fail:
type: boolean
description: |
Ignore detected diagnostic fail.
According to the manual, this should be done if VCC < 2.3V.