You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
29 lines
1.2 KiB
29 lines
1.2 KiB
Device Tree |
|
########### |
|
|
|
In the context of sensors device tree provides the initial hardware configuration |
|
for sensors on a per device level. Each device must specify a device tree binding |
|
in Zephyr, and ideally, a set of hardware configuration options for things such |
|
as channel power modes, data rates, filters, decimation, and scales. These can |
|
then be used in a boards devicetree to configure a sensor to its initial state. |
|
|
|
.. code-block:: dts |
|
|
|
#include <zephyr/dt-bindings/icm42688.h> |
|
|
|
&spi0 { |
|
/* SPI bus options here, not shown */ |
|
|
|
accel_gyro0: icm42688p@0 { |
|
compatible = "invensense,icm42688"; |
|
reg = <0>; |
|
int-gpios = <&pioc 6 GPIO_ACTIVE_HIGH>; /* SoC specific pin to select for interrupt line */ |
|
spi-max-frequency = <DT_FREQ_M(24)>; /* Maximum SPI bus frequency */ |
|
accel-pwr-mode = <ICM42688_ACCEL_LN>; /* Low noise mode */ |
|
accel-odr = <ICM42688_ACCEL_ODR_2000>; /* 2000 Hz sampling */ |
|
accel-fs = <ICM42688_ACCEL_FS_16>; /* 16G scale */ |
|
gyro-pwr-mode = <ICM42688_GYRO_LN>; /* Low noise mode */ |
|
gyro-odr = <ICM42688_GYRO_ODR_2000>; /* 2000 Hz sampling */ |
|
gyro-fs = <ICM42688_GYRO_FS_16>; /* 16G scale */ |
|
}; |
|
};
|
|
|